Merge pull request #28 from atusa17/PAN-46

Pan 46

.travis.yml

@@ -13,13 +13,12 @@ addons:
       - mysql-client
 
 before_install:
-  - chmod +x pandamonium-theorem-prover/gradlew
+  - chmod +x gradlew
-  - cd pandamonium-theorem-prover
 
 before_script:
   - mysql_upgrade --force -uroot
   - mysql -u root -e 'CREATE DATABASE IF NOT EXISTS pandamonium;'
-  - mysql -u root -e "CREATE USER 'panda'@'localhost';"
+  - mysql -u root -e "CREATE USER 'panda'@'localhost' IDENTIFIED BY 'secret';"
   - mysql -u root -e "GRANT ALL PRIVILEGES ON *.* to 'panda'@'localhost';"
   - mysql -u root pandamonium < persistence/scripts/mysql/local_development.sql
 
@@ -31,11 +30,19 @@ stages:
 
 jobs:
   include:
-    - stage: Load Database
+    - stage: "Load Database"
       script: ./gradlew loaddb
-    - stage: Build
+    - stage: "Build"
       script: ./gradlew build
-    - stage: Unit Tests
+    - stage: "Unit Tests"
       script: ./gradlew test
-    - stage: Integration Tests
+    - stage: "Integration Tests"
-      script: ./gradlew integrationTest
+      script:
+      - |
+        ./gradlew :persistence:startPersistenceApi &
+        APP_PID=$!
+      - |
+        ./gradlew integrationTest
+      - kill $APP_PID
+    - stage: "Sonar Analysis"
+      script: ./gradlew sonar

README.md

@@ -1,2 +1,54 @@
 # Pandamonium Theorem Prover
-This is the main repository for the Technical Software Project
+This project contains several different modules for different parts of the system.
+
+* [persistence](persistence/README.md)
+* [web-server](src/README.md)
+
+## Getting Started
+
+1. Clone the project. `git clone git@github.com:atusa17/tsp.git`
+2. Open the `pandamonium-theorem-prover` folder with IntelliJ. Use auto-import for a Gradle project.
+3. Individual Components have their own README. Continue there.
+
+## Running the Tests
+
+This project is unit tested with JUnit and Mockito. You can run the unit tests with IntelliJ or Gradle. To run them with IntelliJ, browse to any `*Test.java` file and use IntelliJ's built-in test runner to run or debug the test. To run all the unit tests with Gradle:
+
+* On a Linux or Macintosh machine:
+
+    ```$ ./gradlew test```
+    
+* On a Windows machine:
+
+    ```$ gradlew.bat test```
+
+You can also test modules individually:
+
+* On a Linux or Macintosh machine:
+
+    ```$ ./gradlew persistence:test```
+  
+* On a Windows machine:
+
+    ```$ gradlew.bat persistence:test```
+
+## Integration Tests
+
+To run the integration tests with IntelliJ, browse to any `*Test.java` file residing in any module name `integrationTest` and use IntelliJ's built-in test runner to run or debug the test. To run all the integration tests with Gradle:
+
+* On a Linux or Macintosh machine:
+
+    ```$ ./gradlew integrationTest```
+  
+* On a Windows machine
+
+    ```$ gradlew.bat integrationTest```
+  
+## Built with
+
+* [Spring Boot](https://projects.spring.io/spring-boot/) - Web framework
+* [Spring Web Flow](https://projects.spring.io/spring-webflow/) - MVC framework
+* [Gradle](https://gradle.org/) - Dependency management
+* [JUnit](http://junit.org/junit4/) - Unit tests
+* [Mockito](http://site.mockito.org/) - Mock objects library
+* [Lombok](https://projectlombok.org/) - Boilerplate Code Generator

_config.yml

@@ -1 +0,0 @@
-theme: jekyll-theme-midnight

build.gradle

@@ -37,6 +37,14 @@ sonarqube {
 }
 
 allprojects {
+    sonarqube {
+        properties {
+            property "sonar.host.url", "https://sonarcloud.io"
+            property "sonar.projectKey", "atusa17_ptp"
+            property "sonar.organization", "atusa17-github"
+            property "sonar.login", "9dcc611cd79f175459248b053b25450e36e38463"
+        }
+    }
     apply plugin: 'java'
     apply plugin: 'jacoco'
     apply plugin: 'org.unbroken-dome.test-sets'
@@ -45,6 +53,7 @@ allprojects {
 }
 
 subprojects {
+    apply plugin: 'java'
     repositories {
         mavenCentral()
     }
@@ -56,11 +65,11 @@ subprojects {
         compile "joda-time:joda-time:2.2"
         compile('org.springframework:spring-context:5.0.9.RELEASE')
 
+        compileOnly 'org.projectlombok:lombok:1.18.4'
+
         testCompile group: 'junit', name: 'junit', version: '4.11'
         testCompile group: 'junit', name: 'junit', version: '4.12'
         testCompile('org.mockito:mockito-core:1.10.19') {exclude(group: 'org.hamcrest')}
-
-        compileOnly 'org.projectlombok:lombok:1.18.4'
     }
 
     test {
@@ -90,15 +99,18 @@ repositories {
 }
 
 dependencies {
-    compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
+    compile group: 'org.jacoco', name: 'org.jacoco.core', version: '0.8.3'
     compile 'org.codehaus.groovy:groovy-all:2.3.11'
     compile 'org.apache.commons:commons-lang3:3.5'
     // The production code uses the SLF4J logging API at compile time
-    compile 'org.slf4j:slf4j-api:1.7.21'
+    compile 'org.slf4j:slf4j-api:1.7.22'
     compile "joda-time:joda-time:2.2"
-    compile("org.springframework.boot:spring-boot-starter-web")
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.0.5.RELEASE'
+    compile('org.springframework.boot:spring-boot-starter-web','org.apache.tomcat.embed:tomcat-embed-jasper'
+            ,'javax.servlet:jstl')
 
-    testCompile group: 'junit', name: 'junit', version: '4.11'
+    testCompile 'javax.el:javax.el-api:3.0.0'
+    testCompile group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: '2.1.3.RELEASE'
     testCompile group: 'junit', name: 'junit', version: '4.12'
     testCompile "org.springframework:spring-test:5.0.9.RELEASE"
     testCompile('org.mockito:mockito-core:1.10.19') {exclude(group: 'org.hamcrest')}
@@ -108,6 +120,12 @@ dependencies {
     apt 'org.projectlombok:lombok:1.18.4'
 }
 
+project(':persistence') {
+    dependencies {
+        compile project(':utilities')
+    }
+}
+
 test {
     if (System.properties['test.profile'] != 'integrationTest') {
         exclude '**/*integrationTest*'
@@ -121,14 +139,7 @@ testSets {
     integrationTest
 }
 
-compileKotlin {
-    kotlinOptions.jvmTarget = "1.8"
-}
-compileTestKotlin {
-    kotlinOptions.jvmTarget = "1.8"
-}
-
 wrapper {
-    gradleVersion = '4.10.2'
+    gradleVersion = '5.2.1'
     distributionType = Wrapper.DistributionType.ALL
 }

gradle/wrapper/gradle-wrapper.properties~Stashed changes

@@ -0,0 +1,6 @@
+#Sun Feb 03 13:43:34 MST 2019
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.4.1-bin.zip

pandamonium-theorem-prover/.idea/modules/edu.msudenver.tsp.pandamonium-theorem-prover.main.iml

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module version="4">
-  <component name="sonarModuleSettings">
-    <option name="localAnalysisScripName" value="&lt;PROJECT&gt;" />
-    <option name="serverName" value="&lt;PROJECT&gt;" />
-  </component>
-</module>

pandamonium-theorem-prover/.idea/modules/edu.msudenver.tsp.pandamonium-theorem-prover.test.iml

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module version="4">
-  <component name="sonarModuleSettings">
-    <option name="localAnalysisScripName" value="&lt;PROJECT&gt;" />
-    <option name="serverName" value="&lt;PROJECT&gt;" />
-  </component>
-</module>

pandamonium-theorem-prover/README.md

@@ -1 +0,0 @@
-# tsp-main

pandamonium-theorem-prover/persistence/build.gradle

@@ -1,33 +0,0 @@
-plugins {
-    id 'java'
-}
-
-description = 'Provides database access and connectivity'
-group 'edu.msudenver.tsp'
-version '1.0'
-
-sourceCompatibility = 1.8
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    testCompile group: 'junit', name: 'junit', version: '4.12'
-    compile fileTree(dir: 'lib', include: '**/*.jar')
-    
-    compile 'com.mchange:c3p0:0.9.5.2'
-    compile 'mysql:mysql-connector-java:5.1.35'
-    compile 'org.hibernate:hibernate-validator:5.3.4.Final'
-    compile 'javax.validation:validation-api:1.1.0.Final'
-    compile('com.googlecode.log4jdbc:log4jdbc:1.2') {
-        exclude(group: 'org.slf4j')
-    }
-
-    testCompile 'javax.el:javax.el-api:3.0.0'
-}
-
-task loadDb(type: Exec, group: 'Verification', description: 'Reloads the local database.') {
-    workingDir "./scripts/mysql"
-    commandLine './loaddb.sh'
-}

pandamonium-theorem-prover/persistence/scripts/mysql/local_development.sql

@@ -1,25 +0,0 @@
-drop database if exists pandamonium;
-create database pandamonium;
-use pandamonium;
-create table accounts (
-id int not null auto_increment primary key unique,
-username varchar(50) not null unique,
-password varchar(256) not null,
-administrator_status boolean default false,
-last_login date,
-version int default 1
-);
-insert into accounts (username, password, administrator_status)
-values ('admin', 'secret', true),
-('atusa', 'secret', true),
-('dantanxiaotian', 'secret', true),
-('BrittanyBi', 'secret', true),
-('lanlanzeliu', 'secret', true),
-('tramanh305', 'secret', true);
-create table definitions (
-id int not null auto_increment primary key unique,
-name varchar(200) not null,
-definition json not null,
-notation json,
-version int default 1
-);

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/PersistenceConfig.java

@@ -1,10 +0,0 @@
-package edu.msudenver.tsp.persistence;
-
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-@ComponentScan
-public class PersistenceConfig {
-
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dao/BaseDao.java

@@ -1,28 +0,0 @@
-package edu.msudenver.tsp.persistence.dao;
-
-class BaseDao {
-
-//    <T> T findById(final int id) {
-//        //TODO insert DB calls for finding objects by their ID's
-//    }
-
-//    <T> List<T> queryForList(final String query) {
-//        //TODO insert DB calls for querying for lists based on the specified query
-//    }
-
-//    <T> T save(final T t) {
-//        //TODO insert DB calls here for insert and update
-//    }
-
-    <T> void delete(final T t) {
-        //TODO insert DB calls here to delete
-    }
-
-//    private <T> T insert(final T object) {
-//        // TODO insert DB calls to insert records
-//    }
-//
-//    private <T> T update(final T object) {
-//        //TODO insert DB calls to update records
-//    }
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dao/DefinitionDao.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dao;
-
-public class DefinitionDao extends BaseDao {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dao/NotationDao.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dao;
-
-public class NotationDao extends BaseDao {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dao/ProofDao.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dao;
-
-public class ProofDao extends BaseDao {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dao/TheoremDao.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dao;
-
-public class TheoremDao extends BaseDao {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dto/BaseDto.java

@@ -1,9 +0,0 @@
-package edu.msudenver.tsp.persistence.dto;
-
-import lombok.Data;
-
-@Data
-class BaseDto {
-    private String id;
-    private int version;
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dto/DefinitionDto.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dto;
-
-public class DefinitionDto extends BaseDto {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dto/NotationDto.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dto;
-
-public class NotationDto extends BaseDto {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dto/ProofDto.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dto;
-
-public class ProofDto extends BaseDto {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/dto/TheoremDto.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.persistence.dto;
-
-public class TheoremDto extends BaseDto {
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/manager/DefinitionManager.java

@@ -1,11 +0,0 @@
-package edu.msudenver.tsp.persistence.manager;
-
-import edu.msudenver.tsp.persistence.dao.DefinitionDao;
-import lombok.AllArgsConstructor;
-import org.springframework.stereotype.Component;
-
-@Component
-@AllArgsConstructor
-public class DefinitionManager {
-    final private DefinitionDao definitionDao;
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/manager/ManagerConfig.java

@@ -1,10 +0,0 @@
-package edu.msudenver.tsp.persistence.manager;
-
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-@ComponentScan
-public class ManagerConfig {
-
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/manager/NotationManager.java

@@ -1,11 +0,0 @@
-package edu.msudenver.tsp.persistence.manager;
-
-import edu.msudenver.tsp.persistence.dao.NotationDao;
-import lombok.AllArgsConstructor;
-import org.springframework.stereotype.Component;
-
-@Component
-@AllArgsConstructor
-public class NotationManager {
-    final private NotationDao notationDao;
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/manager/ProofManager.java

@@ -1,11 +0,0 @@
-package edu.msudenver.tsp.persistence.manager;
-
-import edu.msudenver.tsp.persistence.dao.ProofDao;
-import lombok.AllArgsConstructor;
-import org.springframework.stereotype.Component;
-
-@Component
-@AllArgsConstructor
-public class ProofManager {
-    final private ProofDao proofDao;
-}

pandamonium-theorem-prover/persistence/src/main/java/edu/msudenver/tsp/persistence/manager/TheoremManager.java

@@ -1,11 +0,0 @@
-package edu.msudenver.tsp.persistence.manager;
-
-import edu.msudenver.tsp.persistence.dao.TheoremDao;
-import lombok.AllArgsConstructor;
-import org.springframework.stereotype.Component;
-
-@Component
-@AllArgsConstructor
-public class TheoremManager {
-    final private TheoremDao theoremDao;
-}

pandamonium-theorem-prover/services/src/main/java/edu/msudenver/tsp/services/parser/ParserConfig.java

@@ -1,11 +0,0 @@
-package edu.msudenver.tsp.services.parser;
-
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-@ComponentScan
-//@PropertySource("classpath:development.properties")
-public class ParserConfig {
-
-}

pandamonium-theorem-prover/services/src/main/java/edu/msudenver/tsp/services/parser/ParserService.java

@@ -1,26 +0,0 @@
-package edu.msudenver.tsp.services.parser;
-
-import edu.msudenver.tsp.persistence.manager.DefinitionManager;
-import edu.msudenver.tsp.persistence.manager.NotationManager;
-import edu.msudenver.tsp.persistence.manager.ProofManager;
-import edu.msudenver.tsp.persistence.manager.TheoremManager;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.stereotype.Service;
-
-@Service
-class ParserService {
-    private final DefinitionManager definitionManager;
-    private final TheoremManager theoremManager;
-    private final NotationManager notationManager;
-    private final ProofManager proofManager;
-
-    @Autowired
-    public ParserService(final DefinitionManager definitionManager, final TheoremManager theoremManager,
-                         final NotationManager notationManager, final ProofManager proofManager) {
-        this.definitionManager = definitionManager;
-        this.theoremManager = theoremManager;
-        this.notationManager = notationManager;
-        this.proofManager = proofManager;
-    }
-
-}

pandamonium-theorem-prover/services/src/main/java/edu/msudenver/tsp/services/scoring/ScoringConfig.java

@@ -1,16 +0,0 @@
-package edu.msudenver.tsp.services.scoring;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-@ComponentScan
-//@PropertySource("classpath:development.properties")
-public class ScoringConfig {
-
-    @Bean
-    public TheoremScoringService theoremScoringService() {
-        return new TheoremScoringService();
-    }
-}

pandamonium-theorem-prover/services/src/main/java/edu/msudenver/tsp/services/scoring/TheoremScoringService.java

@@ -1,8 +0,0 @@
-package edu.msudenver.tsp.services.scoring;
-
-import org.springframework.stereotype.Service;
-
-@Service
-class TheoremScoringService {
-
-}

pandamonium-theorem-prover/services/src/test/java/edu/msudenver/tsp/services/parser/ParserServiceTest.java

@@ -1,17 +0,0 @@
-package edu.msudenver.tsp.services.parser;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.runners.MockitoJUnitRunner;
-
-import static org.junit.Assert.assertEquals;
-
-@RunWith(MockitoJUnitRunner.class)
-public class ParserServiceTest {
-
-    @Test
-    public void test() {
-        assertEquals(3,3);
-    }
-
-}

pandamonium-theorem-prover/services/src/test/java/edu/msudenver/tsp/services/scoring/TheoremScoringServiceTest.java

@@ -1,16 +0,0 @@
-package edu.msudenver.tsp.services.scoring;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.runners.MockitoJUnitRunner;
-
-import static org.junit.Assert.assertEquals;
-
-@RunWith(MockitoJUnitRunner.class)
-public class TheoremScoringServiceTest {
-
-    @Test
-    public void test() {
-        assertEquals(3,3);
-    }
-}

pandamonium-theorem-prover/src/main/java/edu/msudenver/tsp/website/Application.java

@@ -1,33 +0,0 @@
-package edu.msudenver.tsp.website;
-
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.boot.CommandLineRunner;
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.ApplicationContext;
-import org.springframework.context.annotation.Bean;
-
-import java.util.Arrays;
-
-@Slf4j
-@SpringBootApplication
-public class Application {
-
-    public static void main(final String[] args) {
-        SpringApplication.run(Application.class, args);
-    }
-
-    @Bean
-    public CommandLineRunner commandLineRunner(final ApplicationContext ctx) {
-        return args -> {
-
-            LOG.info("Beans provided by Spring Boot:");
-
-            final String[] beanNames = ctx.getBeanDefinitionNames();
-            Arrays.sort(beanNames);
-            for (final String beanName : beanNames) {
-                LOG.info(beanName);
-            }
-        };
-    }
-}

pandamonium-theorem-prover/src/main/java/edu/msudenver/tsp/website/HelloController.java

@@ -1,13 +0,0 @@
-package edu.msudenver.tsp.website;
-
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-@RestController
-public class HelloController {
-
-    @RequestMapping("/")
-    public String index() {
-        return "Welcome to Project Pandamonium!";
-    }
-}

pandamonium-theorem-prover/src/main/java/edu/msudenver/tsp/website/ProofsDriver.java

@@ -1,4 +0,0 @@
-package edu.msudenver.tsp.website;
-
-public class ProofsDriver {
-}

pandamonium-theorem-prover/src/main/java/edu/msudenver/tsp/website/WebsiteConfig.java

@@ -1,12 +0,0 @@
-package edu.msudenver.tsp.website;
-
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.context.annotation.Configuration;
-
-@Configuration
-@ComponentScan
-//@PropertySource("classpath:development.properties")
-public class WebsiteConfig {
-
-
-}

pandamonium-theorem-prover/src/main/webapp/index.jsp

@@ -1,16 +0,0 @@
-<%--
-  Created by IntelliJ IDEA.
-  User: atusa
-  Date: 2/1/19
-  Time: 8:03 PM
-  To change this template use File | Settings | File Templates.
---%>
-<%@ page contentType="text/html;charset=UTF-8" language="java" %>
-<html>
-  <head>
-    <title>$Title$</title>
-  </head>
-  <body>
-  $END$
-  </body>
-</html>

pandamonium-theorem-prover/src/test/java/edu/msudenver/tsp/website/HelloControllerTest.java

@@ -1,13 +0,0 @@
-package edu.msudenver.tsp.website;
-
-import org.junit.Test;
-
-import static org.junit.Assert.assertEquals;
-
-public class HelloControllerTest {
-
-    @Test
-    public void test() {
-        assertEquals(3, 3);
-    }
-}

pandamonium-theorem-prover/src/test/java/edu/msudenver/tsp/website/ProofsDriverTest.java

@@ -1,5 +0,0 @@
-package edu.msudenver.tsp.website;
-
-public class ProofsDriverTest {
-
-}

pandamonium-theorem-prover/src/test/java/edu/msudenver/tsp/website/integrationTest/HelloControllerIntegrationTest.java

@@ -1,15 +0,0 @@
-package edu.msudenver.tsp.website.integrationTest;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-
-import static org.junit.Assert.assertEquals;
-
-@RunWith(SpringJUnit4ClassRunner.class)
-public class HelloControllerIntegrationTest {
-    @Test
-    public void test() {
-        assertEquals(3,3);
-    }
-}

pandamonium-theorem-prover/utilities/build.gradle

@@ -1,17 +0,0 @@
-plugins {
-    id 'java'
-}
-
-group 'edu.msudenver.tsp'
-version '1.0'
-
-sourceCompatibility = 1.8
-
-repositories {
-    mavenCentral()
-}
-
-dependencies {
-    testCompile group: 'junit', name: 'junit', version: '4.12'
-    compile fileTree(dir: 'lib', include: '**/*.jar')
-}

persistence/README.md

@@ -0,0 +1,61 @@
+## PTP Persistence API
+
+The PTP Persistence API is the web API for accessing the theorems database.
+
+<http://localhost:8090/>
+
+## Running from IntelliJ
+
+* Create a new run configuration in IntelliJ.
+
+  ```
+  Name: "PTP Persistence API Tomcat"
+  Application Server: Tomcat (8.5.12)
+  HTTP Port: 8090
+  JMX Port: 1090
+  Deployment tabe: Deploy persistence-api.war (exploded)
+  ```
+## Running the Tests
+
+This project is unit tested with JUnit and Mockito. You can run the unit tests with IntelliJ or Gradle. To run them with IntelliJ, browse to any `*Test.java` file and use IntelliJ's built-in test runner to run or debug the test. To run all the unit tests with Gradle:
+
+* On a Linux or Macintosh machine:
+
+    ```$ ./gradlew test```
+    
+* On a Windows machine:
+
+    ```$ gradlew.bat test```
+
+You can also test modules individually:
+
+* On a Linux or Macintosh machine:
+
+    ```$ ./gradlew persistence:test```
+  
+* On a Windows machine:
+
+    ```$ gradlew.bat persistence:test```
+
+## Integration Tests
+
+To run the integration tests with IntelliJ, browse to any `*Test.java` file residing in any module name `integrationTest` and use IntelliJ's built-in test runner to run or debug the test. To run all the integration tests with Gradle:
+
+* On a Linux or Macintosh machine:
+
+    ```$ ./gradlew integrationTest```
+  
+* On a Windows machine
+
+    ```$ gradlew.bat integrationTest```
+  
+## Built with
+
+* [Spring Boot](https://projects.spring.io/spring-boot/) - Web framework
+* [Spring Web Flow](https://projects.spring.io/spring-webflow/) - MVC framework
+* [Spring Data](https://spring.io/projects/spring-data/) - Persistence framework
+* [Gradle](https://gradle.org/) - Dependency management
+* [JUnit](http://junit.org/junit4/) - Unit tests
+* [Mockito](http://site.mockito.org/) - Mock objects library
+* [Lombok](https://projectlombok.org/) - Boilerplate Code Generator
+* [Hibernate ORM](http://hibernate.org/orm/) - Object/Relational Mapping

persistence/build.gradle

@@ -0,0 +1,60 @@
+import org.gradle.internal.os.OperatingSystem
+plugins {
+    id 'java'
+}
+
+description = 'Provides database access and connectivity'
+group 'edu.msudenver.tsp'
+version '1.0'
+
+sourceCompatibility = 1.8
+
+sonarqube {
+    properties {
+        property "sonar.projectName", 'Pandamonium Persistence Tier'
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    compile group: 'org.springframework.data', name: 'spring-data-jpa', version: '2.0.5.RELEASE'
+    compile group: 'org.apache.tomcat', name: 'tomcat-jdbc', version: '9.0.16'
+    compile group: 'org.springframework.boot', name: 'spring-boot-devtools', version: '2.0.5.RELEASE'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.0.5.RELEASE'
+    compile group: 'org.springframework', name: 'spring-aspects', version: '5.1.5.RELEASE'
+    compile group: 'org.hibernate', name: 'hibernate-core', version: '5.4.1.Final'
+    compile group: 'com.vladmihalcea', name: 'hibernate-types-52', version: '2.4.1'
+
+    compile fileTree(dir: 'lib', include: '**/*.jar')
+
+    compile group: 'mysql', name: 'mysql-connector-java', version: '8.0.15'
+    compile('com.googlecode.log4jdbc:log4jdbc:1.2') {
+        exclude(group: 'org.slf4j')
+    }
+
+    testCompile group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: '2.1.2.RELEASE'
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+    testCompile 'javax.el:javax.el-api:3.0.0'
+
+}
+
+task loadDb(type: Exec, group: 'Verification', description: 'Reloads the local database.') {
+    if (OperatingSystem.current().isLinux() || OperatingSystem.current().isMacOsX()) {
+        workingDir "./scripts/mysql"
+        commandLine './loaddb.sh'
+    } else {
+        workingDir "./scripts/mysql"
+        commandLine=['cmd','/c','loaddb.bat']
+    }
+}
+
+task startPersistenceApi(type: JavaExec, description: 'Starts the Persistence API') {
+    dependsOn 'loadDb'
+    dependsOn 'build'
+    classpath = files('build/libs/persistence-1.0.jar')
+    classpath += sourceSets.main.runtimeClasspath
+    main = 'edu.msudenver.tsp.persistence.PersistenceApi'
+}

persistence/scripts/mysql/loaddb.bat

@@ -0,0 +1,5 @@
+set mysql_pwd = secret
+FOR /R %%s IN (*.sql) do (
+    echo **** %%s ****
+    mysql -u panda -psecret < %%s
+)

persistence/scripts/mysql/loaddb.sh

@@ -1,8 +1,7 @@
 #!/usr/bin/env bash
-export MYSQL_PWD=secret
 
 for sqlScript in $( find . -name "*.sql" -print | sort);
    do
       echo "**** $sqlScript ****"
-      mysql --batch --quick --raw --line-numbers --force --user=panda < $sqlScript
+      mysql -u panda -psecret < $sqlScript
    done

persistence/scripts/mysql/local_development.sql

@@ -0,0 +1,50 @@
+drop database if exists pandamonium;
+create database pandamonium;
+use pandamonium;
+create table accounts (
+id int not null auto_increment primary key unique,
+username varchar(50) not null unique,
+password varchar(256) not null,
+administrator boolean default false,
+last_login date,
+version int default 1
+);
+insert into accounts (username, password, administrator)
+values ('admin', 'secret', true),
+('atusa', 'secret', true),
+('dantanxiaotian', 'secret', true),
+('BrittanyBi', 'secret', true),
+('lanlanzeliu', 'secret', true),
+('tramanh305', 'secret', true);
+create table definitions (
+id int not null auto_increment primary key unique,
+name varchar(200) not null,
+definition json not null,
+notation json,
+version int default 1
+);
+create table theorems (
+id int not null auto_increment primary key unique,
+name varchar(512) not null,
+theorem varchar(1024) not null,
+theorem_type varchar(20) not null,
+branch varchar(512) not null,
+referenced_definitions json,
+referenced_theorems json,
+proven_status boolean default false,
+version int default 1
+);
+create table proofs
+(
+  id int not null auto_increment,
+  theorem_name varchar(512) not null,
+  proof varchar(4096) not null,
+  branch varchar(512) not null,
+  theorem int not null,
+  referenced_definitions json,
+  referenced_theorems json,
+  date_added date,
+  last_updated date,
+  version int default 1,
+  primary key (id)
+);

persistence/src/integrationTest/java/edu/msudenver/tsp/persistence/AccountsIntegrationTest.java

@@ -0,0 +1,57 @@
+package edu.msudenver.tsp.persistence;
+
+import edu.msudenver.tsp.persistence.dto.Account;
+import edu.msudenver.tsp.persistence.repository.AccountsRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import java.util.Optional;
+
+import static org.junit.Assert.*;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = PersistenceTestConfig.class)
+public class AccountsIntegrationTest {
+    @Autowired private AccountsRepository accountsRepository;
+
+    @Test
+    public void testCRUDFunctionality() {
+        final Account account = createAccount();
+        final Account savedAccount = accountsRepository.save(account);
+
+        assertNotNull(savedAccount);
+        assertEquals(Integer.valueOf(0), savedAccount.getVersion());
+
+        final int id = savedAccount.getId();
+
+        assertEquals("Test username", savedAccount.getUsername());
+        assertEquals("test password", savedAccount.getPassword());
+        assertTrue(savedAccount.isAdministrator());
+
+        savedAccount.setPassword("Test Update");
+
+        final Account updatedAccount = accountsRepository.save(savedAccount);
+
+        assertEquals("Test username", savedAccount.getUsername());
+        assertEquals("Test Update", savedAccount.getPassword());
+        assertTrue(savedAccount.isAdministrator());
+        assertEquals(updatedAccount.getId(), id);
+
+        accountsRepository.delete(account);
+        final Optional<Account> deletedAccount = accountsRepository.findById(id);
+        assertFalse(deletedAccount.isPresent());
+    }
+
+    private Account createAccount() {
+        final Account account = new Account();
+        account.setUsername("Test username");
+        account.setPassword("test password");
+        account.setAdministrator(true);
+
+        return account;
+    }
+    
+}

persistence/src/integrationTest/java/edu/msudenver/tsp/persistence/DefinitionsIntegrationTest.java

@@ -0,0 +1,83 @@
+package edu.msudenver.tsp.persistence;
+
+import edu.msudenver.tsp.persistence.dto.Definition;
+import edu.msudenver.tsp.persistence.repository.DefinitionRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+import static org.junit.Assert.*;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = PersistenceTestConfig.class)
+public class DefinitionsIntegrationTest {
+    @Autowired private DefinitionRepository definitionRepository;
+
+    @Test
+    public void testCRUDFunctionality() {
+        final Definition definition = createDefinition();
+        final Definition savedDefinition = definitionRepository.save(definition);
+
+        assertNotNull(savedDefinition);
+        assertEquals(Integer.valueOf(0), savedDefinition.getVersion());
+
+        final int id = savedDefinition.getId();
+
+        assertEquals("Test Name", savedDefinition.getName());
+        assertNotNull(savedDefinition.getDefinition());
+        assertNotNull(savedDefinition.getNotation());
+
+        final List<String> definitionsList = savedDefinition.getDefinition();
+        final List<String> notationList = savedDefinition.getNotation();
+
+        assertEquals(2, definitionsList.size());
+        assertEquals(1, notationList.size());
+        assertEquals("Test definition 1", definitionsList.get(0));
+        assertEquals("Test definition 2", definitionsList.get(1));
+        assertEquals("\\testLaTeX", notationList.get(0));
+
+        savedDefinition.setName("Test Update");
+
+        final Definition updatedDefinition = definitionRepository.save(savedDefinition);
+
+        assertEquals("Test Update", updatedDefinition.getName());
+        assertNotNull(updatedDefinition.getDefinition());
+        assertNotNull(updatedDefinition.getNotation());
+
+        final List<String> updatedDefinitionsList = updatedDefinition.getDefinition();
+        final List<String> updatedNotationsList = updatedDefinition.getNotation();
+
+        assertEquals(2, updatedDefinitionsList.size());
+        assertEquals(1, updatedNotationsList.size());
+        assertEquals("Test definition 1", updatedDefinitionsList.get(0));
+        assertEquals("Test definition 2", updatedDefinitionsList.get(1));
+        assertEquals("\\testLaTeX", updatedNotationsList.get(0));
+        assertEquals(id, updatedDefinition.getId());
+
+        definitionRepository.delete(updatedDefinition);
+        final Optional<Definition> deletedDefinition = definitionRepository.findById(id);
+        assertFalse(deletedDefinition.isPresent());
+    }
+
+    private Definition createDefinition() {
+        final List<String> definitionList = new ArrayList<>();
+        definitionList.add("Test definition 1");
+        definitionList.add("Test definition 2");
+
+        final List<String> notationList = new ArrayList<>();
+        notationList.add("\\testLaTeX");
+
+        final Definition definition = new Definition();
+        definition.setName("Test Name");
+        definition.setDefinition(definitionList);
+        definition.setNotation(notationList);
+
+        return definition;
+    }
+}

persistence/src/integrationTest/java/edu/msudenver/tsp/persistence/PersistenceTestConfig.java

@@ -0,0 +1,93 @@
+package edu.msudenver.tsp.persistence;
+
+import org.hibernate.SessionFactory;
+import org.hibernate.jpa.HibernatePersistenceProvider;
+import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.Primary;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.jdbc.datasource.init.DataSourceInitializer;
+import org.springframework.orm.hibernate5.HibernateTransactionManager;
+import org.springframework.orm.hibernate5.LocalSessionFactoryBuilder;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
+
+import javax.sql.DataSource;
+import java.util.Properties;
+
+@Configuration
+@EnableJpaRepositories
+@EnableJpaAuditing
+@EntityScan(basePackages = "edu.msudenver.tsp.persistence")
+public class PersistenceTestConfig {
+    @Bean
+    @Primary
+    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
+        final LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
+        entityManagerFactoryBean.setJpaVendorAdapter(vendorAdapter());
+        entityManagerFactoryBean.setDataSource(getDataSource());
+        entityManagerFactoryBean.setPersistenceProviderClass(HibernatePersistenceProvider.class);
+        entityManagerFactoryBean.setPackagesToScan("edu.msudenver.tsp.persistence");
+        entityManagerFactoryBean.setJpaProperties(additionalProperties());
+
+        return entityManagerFactoryBean;
+    }
+
+    @Bean
+    public JpaTransactionManager jpaTransactionManager() {
+        final JpaTransactionManager jpaTransactionManager = new JpaTransactionManager();
+        jpaTransactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
+        return jpaTransactionManager;
+    }
+
+    private HibernateJpaVendorAdapter vendorAdapter() {
+        final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
+        vendorAdapter.setShowSql(true);
+        return vendorAdapter;
+    }
+
+    @Bean(name = "dataSource")
+    public DataSource getDataSource(){
+        return DataSourceBuilder
+                .create()
+                .username("panda")
+                .password("secret")
+                .url("jdbc:mysql://127.0.0.1:3306/pandamonium?autoReconnect=true&useSSL=false&serverTimezone=UTC")
+                .driverClassName("com.mysql.cj.jdbc.Driver")
+                .build();
+    }
+
+    @Bean(name = "sessionFactory")
+    public SessionFactory getSessionFactory(final DataSource dataSource) {
+        final LocalSessionFactoryBuilder sessionFactoryBuilder = new LocalSessionFactoryBuilder(dataSource);
+        sessionFactoryBuilder.scanPackages("edu.msudenver.tsp.persistence.dto");
+        return sessionFactoryBuilder.buildSessionFactory();
+    }
+
+    @Bean(name = "transactionManager")
+    public HibernateTransactionManager getTransactionManager(final SessionFactory sessionFactory) {
+        return new HibernateTransactionManager(sessionFactory);
+    }
+
+    @Bean
+    public DataSourceInitializer dataSourceInitializer(final DataSource dataSource) {
+        final DataSourceInitializer initializer = new DataSourceInitializer();
+        initializer.setDataSource(dataSource);
+        return initializer;
+    }
+
+    private Properties additionalProperties() {
+        final Properties properties = new Properties();
+        properties.setProperty("hibernate.hbm2ddl.auto", "update");
+        properties.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQL8Dialect");
+        properties.setProperty("spring.jpa.show-sql", "true");
+        properties.setProperty("spring.datasource.tomcat.max-active", "1");
+        properties.setProperty("hibernate.id.new_generator_mappings","false");
+
+        return properties;
+    }
+}

persistence/src/integrationTest/java/edu/msudenver/tsp/persistence/ProofsIntegrationTest.java

@@ -0,0 +1,92 @@
+package edu.msudenver.tsp.persistence;
+
+import edu.msudenver.tsp.persistence.dto.Proof;
+import edu.msudenver.tsp.persistence.repository.ProofRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Optional;
+
+import static org.junit.Assert.*;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = PersistenceTestConfig.class)
+public class ProofsIntegrationTest {
+    @Autowired private ProofRepository proofRepository;
+
+    @Test
+    public void testCRUDFunctionality() {
+        final Proof proof = createProof();
+        final Proof savedProof = proofRepository.save(proof);
+
+        assertNotNull(savedProof);
+        assertEquals(Integer.valueOf(0), savedProof.getVersion());
+
+        final int id = savedProof.getId();
+
+        assertEquals("Test proof", savedProof.getTheoremName());
+        assertEquals("Test branch", savedProof.getBranch());
+        assertEquals("test", savedProof.getProof());
+        assertEquals(Integer.valueOf(1), savedProof.getTheorem());
+        assertNotNull(savedProof.getDateCreated());
+        assertNotNull(savedProof.getLastUpdated());
+        assertEquals(2, savedProof.getReferencedTheorems().size());
+        assertEquals(2, savedProof.getReferencedDefinitions().size());
+        assertEquals("test theorem 1", savedProof.getReferencedTheorems().get(0));
+        assertEquals("test theorem 2", savedProof.getReferencedTheorems().get(1));
+        assertEquals("test definition 1", savedProof.getReferencedDefinitions().get(0));
+        assertEquals("test definition 2", savedProof.getReferencedDefinitions().get(1));
+
+        savedProof.setBranch("Test Update");
+
+        final Proof updatedProof = proofRepository.save(savedProof);
+
+        assertNotNull(updatedProof);
+        assertEquals(Integer.valueOf(0), updatedProof.getVersion());
+        assertEquals("Test proof", updatedProof.getTheoremName());
+        assertEquals("Test Update", updatedProof.getBranch());
+        assertEquals("test", updatedProof.getProof());
+        assertEquals(Integer.valueOf(1), savedProof.getTheorem());
+        assertNotNull(updatedProof.getLastUpdated());
+        assertNotNull(updatedProof.getDateCreated());
+        assertNotEquals(updatedProof.getDateCreated().toInstant(), updatedProof.getLastUpdated().toInstant());
+        assertEquals(2, updatedProof.getReferencedTheorems().size());
+        assertEquals(2, updatedProof.getReferencedDefinitions().size());
+        assertEquals("test theorem 1", updatedProof.getReferencedTheorems().get(0));
+        assertEquals("test theorem 2", updatedProof.getReferencedTheorems().get(1));
+        assertEquals("test definition 1", updatedProof.getReferencedDefinitions().get(0));
+        assertEquals("test definition 2", updatedProof.getReferencedDefinitions().get(1));
+        assertEquals(updatedProof.getId(), id);
+
+        proofRepository.delete(proof);
+        final Optional<Proof> deletedProof = proofRepository.findById(id);
+        assertFalse(deletedProof.isPresent());
+    }
+
+    private Proof createProof() {
+        final List<String> referencedTheoremsList = new ArrayList<>();
+        referencedTheoremsList.add("test theorem 1");
+        referencedTheoremsList.add("test theorem 2");
+
+        final List<String> referencedDefinitionsList = new ArrayList<>();
+        referencedDefinitionsList.add("test definition 1");
+        referencedDefinitionsList.add("test definition 2");
+
+        final Proof proof = new Proof();
+        proof.setTheoremName("Test proof");
+        proof.setProof("test");
+        proof.setTheorem(1);
+        proof.setBranch("Test branch");
+        proof.setDateCreated(new Date());
+        proof.setReferencedTheorems(referencedTheoremsList);
+        proof.setReferencedDefinitions(referencedDefinitionsList);
+
+        return proof;
+    }
+}

persistence/src/integrationTest/java/edu/msudenver/tsp/persistence/TheoremsIntegrationTest.java

@@ -0,0 +1,87 @@
+package edu.msudenver.tsp.persistence;
+
+import edu.msudenver.tsp.persistence.dto.Theorem;
+import edu.msudenver.tsp.persistence.dto.TheoremType;
+import edu.msudenver.tsp.persistence.repository.TheoremRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+import static org.junit.Assert.*;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = PersistenceTestConfig.class)
+public class TheoremsIntegrationTest {
+    @Autowired private TheoremRepository theoremRepository;
+
+    @Test
+    public void testCRUDFunctionality() {
+        final Theorem theorem = createTheorem();
+        final Theorem savedTheorem = theoremRepository.save(theorem);
+
+        assertNotNull(savedTheorem);
+        assertEquals(Integer.valueOf(0), savedTheorem.getVersion());
+
+        final int id = savedTheorem.getId();
+
+        assertEquals("Test theorem", savedTheorem.getName());
+        assertEquals("Test branch", savedTheorem.getBranch());
+        assertEquals("test", savedTheorem.getTheorem());
+        assertTrue(savedTheorem.getProvenStatus());
+        assertEquals(2, savedTheorem.getReferencedTheorems().size());
+        assertEquals(2, savedTheorem.getReferencedDefinitions().size());
+        assertEquals("test theorem 1", savedTheorem.getReferencedTheorems().get(0));
+        assertEquals("test theorem 2", savedTheorem.getReferencedTheorems().get(1));
+        assertEquals("test definition 1", savedTheorem.getReferencedDefinitions().get(0));
+        assertEquals("test definition 2", savedTheorem.getReferencedDefinitions().get(1));
+
+        savedTheorem.setBranch("Test Update");
+
+        final Theorem updatedTheorem = theoremRepository.save(savedTheorem);
+
+        assertNotNull(updatedTheorem);
+        assertEquals(Integer.valueOf(0), updatedTheorem.getVersion());
+        assertEquals("Test theorem", updatedTheorem.getName());
+        assertEquals("Test Update", updatedTheorem.getBranch());
+        assertEquals("test", updatedTheorem.getTheorem());
+        assertTrue(updatedTheorem.getProvenStatus());
+        assertEquals(2, updatedTheorem.getReferencedTheorems().size());
+        assertEquals(2, updatedTheorem.getReferencedDefinitions().size());
+        assertEquals("test theorem 1", updatedTheorem.getReferencedTheorems().get(0));
+        assertEquals("test theorem 2", updatedTheorem.getReferencedTheorems().get(1));
+        assertEquals("test definition 1", updatedTheorem.getReferencedDefinitions().get(0));
+        assertEquals("test definition 2", updatedTheorem.getReferencedDefinitions().get(1));
+        assertEquals(updatedTheorem.getId(), id);
+
+        theoremRepository.delete(theorem);
+        final Optional<Theorem> deletedTheorem = theoremRepository.findById(id);
+        assertFalse(deletedTheorem.isPresent());
+    }
+
+    private Theorem createTheorem() {
+        final List<String> referencedTheoremsList = new ArrayList<>();
+        referencedTheoremsList.add("test theorem 1");
+        referencedTheoremsList.add("test theorem 2");
+
+        final List<String> referencedDefinitionsList = new ArrayList<>();
+        referencedDefinitionsList.add("test definition 1");
+        referencedDefinitionsList.add("test definition 2");
+
+        final Theorem theorem = new Theorem();
+        theorem.setName("Test theorem");
+        theorem.setTheorem("test");
+        theorem.setBranch("Test branch");
+        theorem.setProvenStatus(true);
+        theorem.setTheoremType(TheoremType.THEOREM);
+        theorem.setReferencedTheorems(referencedTheoremsList);
+        theorem.setReferencedDefinitions(referencedDefinitionsList);
+
+        return theorem;
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/PersistenceApi.java

@@ -0,0 +1,110 @@
+package edu.msudenver.tsp.persistence;
+
+import org.hibernate.SessionFactory;
+import org.hibernate.jpa.HibernatePersistenceProvider;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.domain.EntityScan;
+import org.springframework.boot.jdbc.DataSourceBuilder;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Primary;
+import org.springframework.data.jpa.repository.config.EnableJpaAuditing;
+import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
+import org.springframework.jdbc.datasource.init.DataSourceInitializer;
+import org.springframework.orm.hibernate5.HibernateTransactionManager;
+import org.springframework.orm.hibernate5.LocalSessionFactoryBuilder;
+import org.springframework.orm.jpa.JpaTransactionManager;
+import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
+import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
+
+import javax.sql.DataSource;
+import java.util.Properties;
+
+@SpringBootApplication
+@EnableJpaRepositories
+@EnableJpaAuditing
+@EntityScan
+public class PersistenceApi {
+
+    @Value("${spring.datasource.username}") private String username;
+    @Value("${spring.datasource.password}") private String password;
+    @Value("${spring.jpa.hibernate.ddl-auto}") private String hibernateTablePolicy;
+    @Value("${spring.datasource.url}") private String databaseUrl;
+    @Value("${spring.jpa.properties.hibernate.dialect}") private String hibernateDialect;
+    @Value("${spring.jpa.show-sql}") private String showSql;
+    @Value("${spring.datasource.driver-class-name}") private String driverClassName;
+    @Value("${spring.datasource.tomcat.max-active}") private String tomcatPoolMaxActive;
+
+    public static void main(final String[] args) {
+        SpringApplication.run(PersistenceApi.class, args);
+    }
+
+    @Bean
+    @Primary
+    public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
+        final LocalContainerEntityManagerFactoryBean em = new LocalContainerEntityManagerFactoryBean();
+        em.setJpaVendorAdapter(vendorAdapter());
+        em.setDataSource(getDataSource());
+        em.setPersistenceProviderClass(HibernatePersistenceProvider.class);
+        em.setPackagesToScan("edu.msudenver.tsp.persistence");
+        em.setJpaProperties(additionalProperties());
+
+        return em;
+    }
+
+    @Bean
+    public JpaTransactionManager jpaTransactionManager() {
+        final JpaTransactionManager jpaTransactionManager = new JpaTransactionManager();
+        jpaTransactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
+        return jpaTransactionManager;
+    }
+
+    private HibernateJpaVendorAdapter vendorAdapter() {
+        final HibernateJpaVendorAdapter vendorAdapter = new HibernateJpaVendorAdapter();
+        vendorAdapter.setShowSql(true);
+        return vendorAdapter;
+    }
+
+    @Bean(name = "dataSource")
+    public DataSource getDataSource(){
+        return DataSourceBuilder
+                .create()
+                .username(username)
+                .password(password)
+                .url(databaseUrl)
+                .driverClassName(driverClassName)
+                .build();
+    }
+
+    @Bean(name = "sessionFactory")
+    public SessionFactory getSessionFactory(final DataSource dataSource) {
+        final LocalSessionFactoryBuilder sessionFactoryBuilder = new LocalSessionFactoryBuilder(dataSource);
+        sessionFactoryBuilder.scanPackages("edu.msudenver.tsp.persistence.dto");
+        return sessionFactoryBuilder.buildSessionFactory();
+    }
+
+    @Bean(name = "transactionManager")
+    public HibernateTransactionManager getTransactionManager(final SessionFactory sessionFactory) {
+        return new HibernateTransactionManager(sessionFactory);
+    }
+
+    @Bean
+    public DataSourceInitializer dataSourceInitializer(final DataSource dataSource) {
+        final DataSourceInitializer initializer = new DataSourceInitializer();
+        initializer.setDataSource(dataSource);
+        return initializer;
+    }
+
+    Properties additionalProperties() {
+        final Properties properties = new Properties();
+        properties.setProperty("hibernate.hbm2ddl.auto", "update");
+        properties.setProperty("hibernate.dialect", hibernateDialect);
+        properties.setProperty("spring.jpa.show-sql", showSql);
+        properties.setProperty("spring.datasource.tomcat.max-active", tomcatPoolMaxActive);
+        properties.setProperty("hibernate.id.new_generator_mappings","false");
+
+        return properties;
+
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/controller/AccountController.java

@@ -0,0 +1,232 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Account;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.AccountsRepository;
+import edu.msudenver.tsp.utilities.PersistenceUtilities;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.StopWatch;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import javax.validation.groups.Default;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@RestController
+@AllArgsConstructor
+@RequestMapping("/accounts")
+@Validated
+public class AccountController {
+    private final AccountsRepository accountsRepository;
+
+    @GetMapping({"","/"})
+    public @ResponseBody
+    ResponseEntity<Iterable<Account>> getListOfAccounts() {
+        LOG.info("Received request to list all accounts");
+
+        LOG.debug("Querying for list of accounts");
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Account> listOfAccounts = (List<Account>) accountsRepository.findAll();
+
+        stopWatch.stop();
+
+        LOG.debug("Successfully completed query. Query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all accounts with size of {}", listOfAccounts.size());
+
+        return new ResponseEntity<>(listOfAccounts, HttpStatus.OK);
+    }
+
+    @GetMapping("/id")
+    public @ResponseBody
+    ResponseEntity<Account> getAccountById(@RequestParam("id") final Integer id) throws BadRequestException {
+        LOG.info("Received request to query for account with id {}", id);
+        if (id == null) {
+            LOG.error("ERROR: ID was null");
+            throw new BadRequestException("ERROR: ID cannot be null");
+        }
+
+        LOG.debug("Querying for account with id {}", id);
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Account> account = accountsRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        return account.map(accountDto -> {
+            LOG.info("Returning account with id {}", id);
+            return new ResponseEntity<>(accountDto, HttpStatus.OK);
+        }).orElseGet(
+                () -> {
+                    LOG.warn("No account was found with id {}", id);
+                    return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+                }
+        );
+    }
+
+    @GetMapping("/username")
+    public @ResponseBody
+    ResponseEntity<Account> getAccountByUsername(@RequestParam("username") final String username) throws BadRequestException {
+        LOG.info("Received request to query for account with username {}", username);
+        if (username == null) {
+            LOG.error("ERROR: username was null");
+            throw new BadRequestException("ERROR: Username cannot be null");
+        }
+
+        LOG.debug("Querying for account with username {}", username);
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Account> account = accountsRepository.findByUsername(username);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        return account.map(accountDto -> {
+            LOG.info("Returning account with username {}", username);
+            return new ResponseEntity<>(accountDto, HttpStatus.OK);
+        }).orElseGet(
+                () -> {
+                    LOG.warn("No account was found with username {}", username);
+                    return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+                }
+        );
+    }
+
+    @PostMapping({"","/"})
+    @Validated({Account.Insert.class, Default.class})
+    public @ResponseBody ResponseEntity<Account> insertAccount(
+            @Valid @RequestBody final Account account, final BindingResult bindingResult)
+            throws UnprocessableEntityException, BadRequestException {
+
+        LOG.info("Received request to insert a new account");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (account == null) {
+            LOG.error("Passed account is unprocessable");
+            throw new BadRequestException("Passed account is unprocessable");
+        }
+
+        LOG.info("Checking for any existing users with username {}", account.getUsername());
+
+        final Instant start = Instant.now();
+
+        LOG.debug("Querying for existing accounts");
+
+        final Optional<Account> existingAccount = accountsRepository.findByUsername(account.getUsername());
+
+        LOG.debug("Received response from the server: query took {} ms", Duration.between(start, Instant.now()).toMillis());
+
+        if (existingAccount.isPresent()) {
+            LOG.warn("An account already exists with username {}", account.getUsername());
+            return new ResponseEntity<>(HttpStatus.CONFLICT);
+        }
+
+        LOG.debug("Saving new account");
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Account savedAccount = accountsRepository.save(account);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning the newly created account");
+        return new ResponseEntity<>(savedAccount, HttpStatus.CREATED);
+    }
+
+    @PatchMapping("/{id}")
+    public @ResponseBody ResponseEntity<Account> updateAccount(
+            @PathVariable("id") final Integer id,
+            @RequestBody final Account account, final BindingResult bindingResult)
+            throws UnprocessableEntityException, BadRequestException {
+
+        LOG.info("Received request to update an account");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (account == null) {
+            LOG.error("Passed entity is null");
+            throw new BadRequestException("Passed account is null");
+        }
+
+        if (id == null) {
+            LOG.error("Account ID must be specified");
+            throw new BadRequestException("Account ID must be specified");
+        }
+
+        LOG.debug("Checking for existence of account with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Account> existingAccount = accountsRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        if (!existingAccount.isPresent()) {
+            LOG.error("No account associated with id {}", id);
+            return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
+        }
+
+        PersistenceUtilities.copyNonNullProperties(account, existingAccount.get());
+        existingAccount.get().setVersion(existingAccount.get().getVersion()+ 1);
+
+        LOG.info("Updating account with id {}", id);
+        LOG.debug("Querying for account with id {}", id);
+
+        stopWatch.start();
+
+        final Account updatedAccount = accountsRepository.save(existingAccount.get());
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(updatedAccount, HttpStatus.OK);
+    }
+
+    @DeleteMapping("/{id}")
+    public @ResponseBody ResponseEntity<Void> deleteAccountById(@PathVariable("id") final Integer id) throws BadRequestException {
+        LOG.info("Received request to delete account with id {}", id);
+        if (id == null) {
+            LOG.error("Specified Id is null");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Deleting account with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        accountsRepository.deleteById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/controller/DefinitionController.java

@@ -0,0 +1,186 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Definition;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.DefinitionRepository;
+import edu.msudenver.tsp.utilities.PersistenceUtilities;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.StopWatch;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import javax.validation.groups.Default;
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@RestController
+@AllArgsConstructor
+@RequestMapping(path = "/definitions")
+@Validated
+public class DefinitionController {
+    private final DefinitionRepository definitionRepository;
+
+    @GetMapping({"","/"})
+    public @ResponseBody
+    ResponseEntity<Iterable<Definition>> getAllDefinitions() {
+        LOG.info("Received request to list all definitions");
+
+        LOG.debug("Querying for list of all definitions");
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Definition> listOfDefinitions = definitionRepository.findAll();
+
+        stopWatch.stop();
+
+        LOG.debug("Successfully completed query. Query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all definition with size {}", listOfDefinitions.size());
+
+        return new ResponseEntity<>(listOfDefinitions, HttpStatus.OK);
+    }
+
+    @GetMapping("/{id}")
+    public @ResponseBody
+    ResponseEntity<Definition> getDefinitionById(@PathVariable("id") final Integer id)
+            throws BadRequestException {
+        LOG.info("Received request to query for definition with id {}", id);
+        if (id == null) {
+            LOG.error("ERROR: ID cannot be null");
+            throw new BadRequestException("ERROR: ID cannot be null");
+        }
+
+        LOG.debug("Querying for definition with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Definition> definition = definitionRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        return definition.map(definitionDto -> {
+                LOG.info("Returning definition with id {}", id);
+                return new ResponseEntity<>(definitionDto, HttpStatus.OK);
+        }).orElseGet(
+                        () -> {
+                            LOG.warn("No definition was found with id {}",id);
+                            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+                        });
+
+    }
+
+    @PostMapping({"","/"})
+    @Validated({Definition.Insert.class, Default.class})
+    public @ResponseBody ResponseEntity<Definition> insertDefinition(
+            @Valid @RequestBody final Definition definition,
+            final BindingResult bindingResult)
+            throws UnprocessableEntityException, BadRequestException {
+        LOG.info("Received request to insert a new definition");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (definition == null) {
+            LOG.error("Passed entity is null");
+            throw new BadRequestException("Passed definition is be null");
+        }
+
+        LOG.debug("Saving new definition");
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Definition savedDefinition = definitionRepository.save(definition);
+
+        stopWatch.stop();
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        LOG.info("Returning the newly created definition with id {}", savedDefinition.getId());
+        return new ResponseEntity<>(savedDefinition, HttpStatus.CREATED);
+    }
+
+    @PatchMapping("/{id}")
+    public @ResponseBody ResponseEntity<Definition> updateDefinition(
+            @PathVariable("id") final Integer id,
+            @RequestBody final Definition definition, final BindingResult bindingResult) throws UnprocessableEntityException, BadRequestException {
+
+        LOG.info("Received request to update an account");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (definition == null) {
+            LOG.error("Passed entity is null");
+            throw new BadRequestException("Passed definition is null");
+        }
+
+        if (id == null) {
+            LOG.error("Definition ID must be specified");
+            throw new BadRequestException("Definition ID must be specified");
+        }
+
+        LOG.debug("Checking for existence of definition with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Definition> existingDefinition = definitionRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        if (!existingDefinition.isPresent()) {
+            LOG.error("No definition associated with id {}", id);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        PersistenceUtilities.copyNonNullProperties(definition, existingDefinition.get());
+        existingDefinition.get().setVersion(existingDefinition.get().getVersion()+ 1);
+
+        LOG.info("Updating definition with id {}", id);
+        LOG.debug("Querying for definition with id {}", id);
+
+        stopWatch.start();
+
+        final Definition updatedDefinition = definitionRepository.save(existingDefinition.get());
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(updatedDefinition, HttpStatus.OK);
+    }
+
+    @DeleteMapping("/{id}")
+    public @ResponseBody ResponseEntity<Void> deleteDefinitionById(@PathVariable("id") final Integer id) throws BadRequestException {
+        LOG.info("Received request to delete definition with id {}", id);
+        if (id == null) {
+            LOG.error("Specified id is null");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Deleting definition with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        definitionRepository.deleteById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/controller/ExceptionHandlingController.java

@@ -0,0 +1,74 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.converter.HttpMessageNotReadableException;
+import org.springframework.web.HttpMediaTypeNotSupportedException;
+import org.springframework.web.HttpRequestMethodNotSupportedException;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseStatus;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.validation.ValidationException;
+import java.util.Collections;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Slf4j
+@RestControllerAdvice
+public class ExceptionHandlingController {
+
+    @ExceptionHandler(HttpMessageNotReadableException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public void handleMessageNotReadableException(final HttpServletRequest request, final HttpMessageNotReadableException e) {
+        LOG.error("Unable to bind post data sent to: {} \nCaught Exception: {}", request.getRequestURI(), e.getMessage());
+    }
+
+    @ExceptionHandler(ValidationException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public String handleMessageInvalidRequest(final HttpServletRequest request, final ValidationException e) {
+        LOG.error("Request did not validate. Experienced the following error: {}", e.getMessage());
+        return "Request did not evaluate. Experienced the following error: " + e.getMessage();
+    }
+
+    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
+    @ResponseStatus(HttpStatus.METHOD_NOT_ALLOWED)
+    public void handleHttpRequestMethodNotSupported(final HttpServletRequest request) {
+        LOG.error("Unsupported request method ({}) for URL: {}", request.getMethod(), request.getRequestURI());
+    }
+
+    @ExceptionHandler(HttpMediaTypeNotSupportedException.class)
+    @ResponseStatus(HttpStatus.UNSUPPORTED_MEDIA_TYPE)
+    public void handleHttpMediaTypeNotSupportedException(final HttpServletRequest request, final HttpMediaTypeNotSupportedException e) {
+        LOG.error("Unsupported media type ({}) for URL: {}", e.getContentType(), request.getRequestURI());
+    }
+
+    @ExceptionHandler(Exception.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public void handleException(final HttpServletRequest request, final Exception e) {
+        LOG.error("Exception caught for URL: {}", request.getRequestURI(), e);
+    }
+
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public List<String> handleMethodArgumentNotValidException(final MethodArgumentNotValidException e) {
+        LOG.error("Request did not evaluate. Experienced the following error: {}", e.getMessage());
+        return e.getBindingResult().getFieldErrors().stream().map(x -> x.getField() + " " + x.getDefaultMessage()).collect(Collectors.toList());
+    }
+
+    @ExceptionHandler(BadRequestException.class)
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    public List<String> handleBadRequestException(final BadRequestException e) {
+        return e.getErrors();
+    }
+
+    @ExceptionHandler(UnprocessableEntityException.class)
+    @ResponseStatus(HttpStatus.UNPROCESSABLE_ENTITY)
+    public List<String> handleUnprocessableEntityException(final UnprocessableEntityException e) {
+        return Collections.singletonList("Request did not evaluate. Experienced the following error: " + e.getMessage());
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/controller/ProofController.java

@@ -0,0 +1,256 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Proof;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.ProofRepository;
+import edu.msudenver.tsp.utilities.PersistenceUtilities;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.StopWatch;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import javax.validation.groups.Default;
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@RestController
+@AllArgsConstructor
+@RequestMapping("/proofs")
+public class ProofController {
+    private final ProofRepository proofRepository;
+
+    @GetMapping({"","/"})
+    public @ResponseBody
+    ResponseEntity<Iterable<Proof>> getAllProofs() {
+        LOG.info("Received request to list all theorems");
+
+        LOG.debug("Querying for list of all theorems");
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Proof> listOfProofs = proofRepository.findAll();
+
+        stopWatch.stop();
+
+        LOG.debug("Successfully completed query. Query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all theorems with size {}", listOfProofs.size());
+
+        return new ResponseEntity<>(listOfProofs, HttpStatus.OK);
+    }
+
+    @GetMapping("/id")
+    public @ResponseBody
+    ResponseEntity<Proof> getProofById(@RequestParam("id") final Integer id) throws BadRequestException {
+        LOG.info("Received request to query for proof with id {}", id);
+        if (id == null) {
+            LOG.error("ERROR: ID was null");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Querying for proof with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Proof> proof = proofRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        return proof.map(proofDto -> {
+            LOG.info("Returning proof with id {}", id);
+            return new ResponseEntity<>(proofDto, HttpStatus.OK);
+        }).orElseGet(
+                () -> {
+                    LOG.warn("No proof was found with id {}", id);
+                    return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+                });
+
+    }
+
+    @GetMapping("/branch")
+    public @ResponseBody
+    ResponseEntity<List<Proof>> getAllProofsByBranch(@RequestParam("branch") String branch)
+            throws BadRequestException {
+        LOG.info("Received request to query for proofs related to the {} branch of mathematics", branch);
+        if (branch == null) {
+            LOG.error("ERROR: branch was null");
+            throw new BadRequestException("Specified branch is null");
+        }
+
+        if (branch.contains("_") || branch.contains("-")) {
+            branch = branch.replace("_"," ");
+            branch = branch.replace("-", " ");
+        }
+
+        LOG.debug("Querying for proofs with branch {}", branch);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Proof> listOfProofs = proofRepository.findByBranch(branch);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all proofs with size {}", listOfProofs.size());
+
+        if (listOfProofs.isEmpty()) {
+            LOG.warn("No proofs were found for branch {}", branch);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        LOG.info("Returning list of proofs with branch {}", branch);
+        return new ResponseEntity<>(listOfProofs, HttpStatus.OK);
+    }
+
+    @GetMapping("/theorem_name")
+    public @ResponseBody
+    ResponseEntity<List<Proof>> getAllProofsByTheoremName(@RequestParam("theorem_name") String theoremName)
+            throws BadRequestException {
+        LOG.info("Received request to query for proofs of the theorem {}", theoremName);
+        if (theoremName == null) {
+            LOG.error("ERROR: theorem name was null");
+            throw new BadRequestException("Specified theorem name is null");
+        }
+
+        if (theoremName.contains("_") || theoremName.contains("-")) {
+            theoremName = theoremName.replace("_"," ");
+            theoremName = theoremName.replace("-", " ");
+        }
+
+        LOG.debug("Querying for proofs of the theorem {}", theoremName);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Proof> listOfProofs = proofRepository.findByTheoremName(theoremName);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all proofs with size {}", listOfProofs.size());
+
+        if (listOfProofs.isEmpty()) {
+            LOG.warn("No proofs were found of the theorem {}", theoremName);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        LOG.info("Returning list of proofs for the theorem {}", theoremName);
+        return new ResponseEntity<>(listOfProofs, HttpStatus.OK);
+    }
+
+    @PostMapping({"","/"})
+    @Validated({Proof.Insert.class, Default.class})
+    public @ResponseBody ResponseEntity<Proof> insertProof(
+            @Valid @RequestBody final Proof proof,
+            final BindingResult bindingResult) throws UnprocessableEntityException, BadRequestException {
+        LOG.info("Received request to insert a new proof");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (proof == null) {
+            LOG.error("Passed entity is null");
+            throw new BadRequestException("Passed proof is null");
+        }
+
+        LOG.debug("Saving new proof");
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Proof savedProof = proofRepository.save(proof);
+
+        stopWatch.stop();
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        LOG.info("Returning the newly created proof with id {}", savedProof.getId());
+        return new ResponseEntity<>(savedProof, HttpStatus.CREATED);
+    }
+
+    @PatchMapping("/{id}")
+    public @ResponseBody ResponseEntity<Proof> updateProof(
+            @PathVariable("id") final Integer id,
+            @RequestBody final Proof proof, final BindingResult bindingResult)
+            throws UnprocessableEntityException, BadRequestException {
+
+        LOG.info("Received request to update a proof");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (proof == null) {
+            LOG.error("Passed entity is null");
+            throw new BadRequestException("Passed proof is null");
+        }
+
+        if (id == null) {
+            LOG.error("Proof ID must be specified");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Checking for existence of proof with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Proof> existingProof = proofRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        if (!existingProof.isPresent()) {
+            LOG.error("No proof associated with id {}", id);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        PersistenceUtilities.copyNonNullProperties(proof, existingProof.get());
+        existingProof.get().setVersion(existingProof.get().getVersion()+ 1);
+
+        LOG.info("Updating proof with id {}", id);
+        LOG.debug("Querying for proof with ID {}", id);
+
+        stopWatch.start();
+
+        final Proof updatedProof = proofRepository.save(existingProof.get());
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(updatedProof, HttpStatus.OK);
+    }
+
+    @DeleteMapping("/{id}")
+    public @ResponseBody ResponseEntity<Void> deleteProofById(@PathVariable("id") final Integer id) throws BadRequestException {
+        LOG.info("Received request to delete proof with id {}", id);
+        if (id == null) {
+            LOG.error("Specified id is null");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Deleting proof with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        proofRepository.deleteById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/controller/TheoremController.java

@@ -0,0 +1,285 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Theorem;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.TheoremRepository;
+import edu.msudenver.tsp.utilities.PersistenceUtilities;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.util.StopWatch;
+import org.springframework.validation.BindingResult;
+import org.springframework.validation.annotation.Validated;
+import org.springframework.web.bind.annotation.*;
+
+import javax.validation.Valid;
+import javax.validation.groups.Default;
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@RestController
+@AllArgsConstructor
+@RequestMapping(path = "/theorems")
+public class TheoremController {
+    private final TheoremRepository theoremRepository;
+
+    @GetMapping({"","/"})
+    public @ResponseBody
+    ResponseEntity<Iterable<Theorem>> getAllTheorems() {
+        LOG.info("Received request to list all theorems");
+
+        LOG.debug("Querying for list of all theorems");
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Theorem> listOfTheorems = theoremRepository.findAll();
+
+        stopWatch.stop();
+
+        LOG.debug("Successfully completed query. Query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all theorems with size {}", listOfTheorems.size());
+
+        return new ResponseEntity<>(listOfTheorems, HttpStatus.OK);
+    }
+
+    @GetMapping("/branch")
+    public @ResponseBody
+    ResponseEntity<List<Theorem>> getAllTheoremsByBranch(@RequestParam("branch") String branch) throws BadRequestException {
+        LOG.info("Received request to query for theorems related to the {} branch of mathematics", branch);
+        if (branch == null) {
+            LOG.error("ERROR: branch was null");
+            throw new BadRequestException("Specified branch is null");
+        }
+
+        if (branch.contains("_") || branch.contains("-")) {
+            branch = branch.replace("_", " ");
+            branch = branch.replace("-", " ");
+        }
+
+        LOG.debug("Querying for theorems with branch {}", branch);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Theorem> listOfTheorems = theoremRepository.findByBranch(branch);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all theorems with size {}", listOfTheorems.size());
+
+        if (listOfTheorems.isEmpty()) {
+            LOG.warn("No theorems were found for branch {}", branch);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        LOG.info("Returning list of theorems with branch {}", branch);
+        return new ResponseEntity<>(listOfTheorems, HttpStatus.OK);
+    }
+
+    @GetMapping("/proven_status")
+    public @ResponseBody
+    ResponseEntity<List<Theorem>> getAllTheoremsByProvenStatus(@RequestParam("proven_status") final String provenStatus) throws BadRequestException {
+        LOG.info("Received request to query for theorems whose proven status is {}", provenStatus);
+        if (provenStatus == null) {
+            LOG.error("ERROR: status was null");
+            throw new BadRequestException("Specified status is null");
+        }
+
+        final Boolean isProven = Boolean.parseBoolean(provenStatus);
+
+        LOG.debug("Querying for theorems with proven status {}", isProven);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Theorem> listOfTheorems = theoremRepository.findByProvenStatus(isProven);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all theorems with size {}", listOfTheorems.size());
+
+        if (listOfTheorems.isEmpty()) {
+            LOG.warn("No theorems were found for proven status {}", isProven);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        LOG.info("Returning list of theorems with proven status {}", isProven);
+        return new ResponseEntity<>(listOfTheorems, HttpStatus.OK);
+    }
+
+    @GetMapping("/name")
+    public @ResponseBody
+    ResponseEntity<List<Theorem>> getAllTheoremsByName(@RequestParam("name") String name) throws BadRequestException {
+        LOG.info("Received request to query for theorems whose name is {}", name);
+        if (name == null) {
+            LOG.error("ERROR: name was null");
+            throw new BadRequestException("Specified name is null");
+        }
+
+        if (name.contains("_") || name.contains("-")) {
+            name = name.replace("_", " ");
+            name = name.replace("-", " ");
+        }
+
+        LOG.debug("Querying for theorems with name {}", name);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<Theorem> listOfTheorems = theoremRepository.findByName(name);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        LOG.info("Returning list of all theorems with size {}", listOfTheorems.size());
+
+        if (listOfTheorems.isEmpty()) {
+            LOG.warn("No theorems were found with name {}", name);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        LOG.info("Returning list of theorems with name {}", name);
+        return new ResponseEntity<>(listOfTheorems, HttpStatus.OK);
+    }
+
+    @GetMapping("/id")
+    public @ResponseBody
+    ResponseEntity<Theorem> getTheoremById(@RequestParam("id") final Integer id) throws BadRequestException {
+        LOG.info("Received request to query for theorem with id {}", id);
+        if (id == null) {
+            LOG.error("ERROR: ID was null");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Querying for theorem with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Theorem> theorem = theoremRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+        return theorem.map(theoremDto -> {
+            LOG.info("Returning theorem with id {}", id);
+            return new ResponseEntity<>(theoremDto, HttpStatus.OK);
+        }).orElseGet(
+                () -> {
+                    LOG.warn("No theorem was found with id {}", id);
+                    return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+                });
+
+    }
+
+    @PostMapping({"","/"})
+    @Validated({Theorem.Insert.class, Default.class})
+    public @ResponseBody ResponseEntity<Theorem> insertTheorem(
+            @Valid @RequestBody final Theorem theorem,
+            final BindingResult bindingResult) throws UnprocessableEntityException, BadRequestException {
+        LOG.info("Received request to insert a new theorem");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (theorem == null) {
+            LOG.error("Passed entity is null");
+            throw new BadRequestException("Passed theorem is null");
+        }
+
+        LOG.debug("Saving new theorem");
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Theorem savedTheorem = theoremRepository.save(theorem);
+
+        stopWatch.stop();
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        LOG.info("Returning the newly created theorem with id {}", savedTheorem.getId());
+        return new ResponseEntity<>(savedTheorem, HttpStatus.CREATED);
+    }
+
+    @PatchMapping("/{id}")
+    public @ResponseBody ResponseEntity<Theorem> updateTheorem(
+            @PathVariable("id") final Integer id,
+            @RequestBody final Theorem theorem, final BindingResult bindingResult) throws UnprocessableEntityException, BadRequestException {
+
+        LOG.info("Received request to update a theorem");
+        if (bindingResult.hasErrors()) {
+            LOG.error("Binding result is unprocessable");
+            throw new UnprocessableEntityException(bindingResult.getAllErrors().toString());
+        }
+
+        if (theorem == null) {
+            LOG.error("Passed entity is null");
+            throw new BadRequestException("Passed theorem is null");
+        }
+
+        if (id == null) {
+            LOG.error("Theorem ID must be specified");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Checking for existence of theorem with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final Optional<Theorem> existingTheorem = theoremRepository.findById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        if (!existingTheorem.isPresent()) {
+            LOG.error("No theorem associated with id {}", id);
+            return new ResponseEntity<>(HttpStatus.NOT_FOUND);
+        }
+
+        PersistenceUtilities.copyNonNullProperties(theorem, existingTheorem.get());
+        existingTheorem.get().setVersion(existingTheorem.get().getVersion()+ 1);
+
+        LOG.info("Updating theorem with id {}", id);
+        LOG.debug("Querying for theorem with id {}", id);
+
+        stopWatch.start();
+
+        final Theorem updatedTheorem = theoremRepository.save(existingTheorem.get());
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(updatedTheorem, HttpStatus.OK);
+    }
+
+    @DeleteMapping("/{id}")
+    public @ResponseBody ResponseEntity<Void> deleteTheoremById(@PathVariable("id") final Integer id) throws BadRequestException {
+        LOG.info("Received request to delete theorem with id {}", id);
+        if (id == null) {
+            LOG.error("Specified id is null");
+            throw new BadRequestException("Specified ID is null");
+        }
+
+        LOG.debug("Deleting theorem with id {}", id);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        theoremRepository.deleteById(id);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took {}ms to complete", stopWatch.getTotalTimeMillis());
+
+        return new ResponseEntity<>(HttpStatus.NO_CONTENT);
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/dto/Account.java

@@ -0,0 +1,43 @@
+package edu.msudenver.tsp.persistence.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import javax.persistence.*;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+import java.io.Serializable;
+import java.util.Date;
+
+@Entity(name = "accounts")
+@EntityListeners(AuditingEntityListener.class)
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class Account extends BaseDto implements Serializable {
+    @NotBlank(groups = Insert.class, message = "A username must be specified") @Size(max = 50) private String username;
+    @NotBlank(groups = Insert.class, message = "A password must be specified") @Size(max = 256) private String password;
+    @NotNull private boolean administrator;
+    @Temporal(TemporalType.DATE) @Column(name = "last_login") private Date lastLogin;
+
+    private static final long serialVersionUID = 7095627971593953734L;
+
+    @JsonProperty("last_login")
+    public Date getLastLogin() {
+        return lastLogin;
+    }
+
+    @JsonProperty("last_login")
+    public void setLastLogin(final Date lastLogin) {
+        this.lastLogin = lastLogin;
+    }
+
+    public interface Insert {}
+
+    @PrePersist
+    public void prePersist() {
+        lastLogin = new Date();
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/dto/BaseDto.java

@@ -0,0 +1,40 @@
+package edu.msudenver.tsp.persistence.dto;
+
+import com.vladmihalcea.hibernate.type.array.IntArrayType;
+import com.vladmihalcea.hibernate.type.array.StringArrayType;
+import com.vladmihalcea.hibernate.type.json.JsonBinaryType;
+import com.vladmihalcea.hibernate.type.json.JsonNodeBinaryType;
+import com.vladmihalcea.hibernate.type.json.JsonNodeStringType;
+import com.vladmihalcea.hibernate.type.json.JsonStringType;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.TypeDef;
+import org.hibernate.annotations.TypeDefs;
+
+import javax.persistence.*;
+import java.io.Serializable;
+
+
+@Data
+@AllArgsConstructor
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+@MappedSuperclass
+@TypeDefs({
+        @TypeDef(name = "string-array", typeClass = StringArrayType.class),
+        @TypeDef(name = "int-array", typeClass = IntArrayType.class),
+        @TypeDef(name = "json", typeClass = JsonStringType.class),
+        @TypeDef(name = "jsonb", typeClass = JsonBinaryType.class),
+        @TypeDef(name = "jsonb-node", typeClass = JsonNodeBinaryType.class),
+        @TypeDef(name = "json-node", typeClass = JsonNodeStringType.class),
+})
+public class BaseDto implements Serializable {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private int id;
+    @Version
+    private Integer version;
+
+    private static final long serialVersionUID = -1686252381978213945L;
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/dto/Definition.java

@@ -0,0 +1,36 @@
+package edu.msudenver.tsp.persistence.dto;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import org.hibernate.annotations.Type;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EntityListeners;
+import javax.persistence.Table;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+import java.io.Serializable;
+import java.util.List;
+
+@Entity(name = "definitions")
+@Table(name = "definitions")
+@EntityListeners(AuditingEntityListener.class)
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class Definition extends BaseDto implements Serializable {
+    @NotBlank(groups = Insert.class, message = "A name must be specified")
+    @Size(min = 1, max = 200, message = "Must be between 1 and 200 characters")
+    private String name;
+
+    @NotNull(groups = Insert.class, message = "At least one (1) definition must be specified")
+    @Type(type = "json") @Column(columnDefinition = "jsonb") private List<String> definition;
+
+    @Type(type = "json") @Column(columnDefinition = "jsonb") private List<String> notation;
+
+    private static final long serialVersionUID = -5314619286352932857L;
+
+    public interface Insert {}
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/dto/Proof.java

@@ -0,0 +1,97 @@
+package edu.msudenver.tsp.persistence.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import org.hibernate.annotations.Type;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import javax.persistence.*;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+import java.io.Serializable;
+import java.util.Date;
+import java.util.List;
+
+@Entity(name = "proofs")
+@EntityListeners(AuditingEntityListener.class)
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class Proof extends BaseDto implements Serializable {
+    @NotBlank(groups = Insert.class)
+    @Size(min = 1, max = 512, message = "The name must be at least 1 character and at most 512 characters")
+    @Column(name = "theorem_name")
+    private String theoremName;
+    @NotNull(groups = Insert.class)
+    @Size(min = 1, max = 4096, message = "The proof must be at least 1 character and at most 4096 characters")
+    private String proof;
+    @NotNull(groups = Insert.class)
+    private Integer theorem;
+    @NotBlank(groups = Insert.class)
+    @Size(min = 1, max = 512, message = "The branch must be at least 1 character and at most 512 characters")
+    private String branch;
+    @Type(type = "json") @Column(name = "referenced_definitions", columnDefinition = "jsonb") private List<String> referencedDefinitions;
+    @Type(type = "json") @Column(name = "referenced_theorems", columnDefinition = "jsonb") private List<String> referencedTheorems;
+    @Temporal(TemporalType.DATE) @Column(name = "date_created") private Date dateCreated;
+    @Temporal(TemporalType.DATE) @Column(name = "last_updated") private Date lastUpdated;
+
+    @JsonProperty("theorem_name")
+    public String getTheoremName() {
+        return theoremName;
+    }
+
+    @JsonProperty("theorem_name")
+    public void setTheoremName(final String theoremName) {
+        this.theoremName = theoremName;
+    }
+
+    @JsonProperty("referenced_definitions")
+    public List<String> getReferencedDefinitions() {
+        return referencedDefinitions;
+    }
+
+    @JsonProperty("referenced_definitions")
+    public void setReferencedDefinitions(final List<String> referencedDefinitions) {
+        this.referencedDefinitions = referencedDefinitions;
+    }
+
+    @JsonProperty("referenced_theorems")
+    public List<String> getReferencedTheorems() {
+        return referencedTheorems;
+    }
+
+    @JsonProperty("referenced_theorems")
+    public void setReferencedTheorems(final List<String> referencedTheorems) {
+        this.referencedTheorems = referencedTheorems;
+    }
+
+    @JsonProperty("date_created")
+    public Date getDateCreated() {
+        return dateCreated;
+    }
+
+    @JsonProperty("date_created")
+    public void setDateCreated(final Date dateCreated) {
+        this.dateCreated = dateCreated;
+    }
+
+    @JsonProperty("last_updated")
+    public Date getLastUpdated() {
+        return lastUpdated;
+    }
+
+    @JsonProperty("last_updated")
+    public void setLastUpdated(final Date lastUpdated) {
+        this.lastUpdated = lastUpdated;
+    }
+
+    @PrePersist
+    public void prePersist() {
+        lastUpdated = new Date();
+    }
+
+    private static final long serialVersionUID = -7731220940349760402L;
+
+    public interface Insert {}
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/dto/Theorem.java

@@ -0,0 +1,75 @@
+package edu.msudenver.tsp.persistence.dto;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import org.hibernate.annotations.Type;
+import org.springframework.data.jpa.domain.support.AuditingEntityListener;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.EntityListeners;
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+import javax.validation.constraints.Size;
+import java.io.Serializable;
+import java.util.List;
+
+@Entity(name = "theorems")
+@EntityListeners(AuditingEntityListener.class)
+@Data
+@EqualsAndHashCode(callSuper = true)
+public class Theorem extends BaseDto implements Serializable {
+    @NotBlank(groups = Insert.class) @Size(min = 1, max = 512, message = "theorem name must be between 1 and 512 characters") private String name;
+    @NotNull(groups = Insert.class) @Size(min = 1, max = 1024, message = "theorem must be between 1 and 1024 characters") private String theorem;
+    @NotNull(groups = Insert.class) @Column(name = "theorem_type") private TheoremType theoremType;
+    @NotNull(groups = Insert.class, message = "a branch of mathematics that this theorem is associated with must be specified") private String branch;
+    @Type(type = "json") @Column(name = "referenced_definitions", columnDefinition = "jsonb") private List<String> referencedDefinitions;
+    @Type(type = "json") @Column(name = "referenced_theorems", columnDefinition = "jsonb") private List<String> referencedTheorems;
+    @NotNull(groups = Insert.class) @Column(name = "proven_status") private boolean provenStatus;
+
+    @JsonProperty("theorem_type")
+    public TheoremType getTheoremType() {
+        return theoremType;
+    }
+
+    @JsonProperty("theorem_type")
+    public void setTheoremType(final TheoremType theoremType) {
+        this.theoremType = theoremType;
+    }
+
+    @JsonProperty("referenced_definitions")
+    public List<String> getReferencedDefinitions() {
+        return referencedDefinitions;
+    }
+
+    @JsonProperty("referenced_definitions")
+    public void setReferencedDefinitions(final List<String> referencedDefinitions) {
+        this.referencedDefinitions = referencedDefinitions;
+    }
+
+    @JsonProperty("referenced_theorems")
+    public List<String> getReferencedTheorems() {
+        return referencedTheorems;
+    }
+
+    @JsonProperty("referenced_theorems")
+    public void setReferencedTheorems(final List<String> referencedTheorems) {
+        this.referencedTheorems = referencedTheorems;
+    }
+
+    @JsonProperty("proven_status")
+    public boolean getProvenStatus() {
+        return provenStatus;
+    }
+
+    @JsonProperty("proven_status")
+    public void setProvenStatus(final boolean provenStatus) {
+        this.provenStatus = provenStatus;
+    }
+
+    private static final long serialVersionUID = 1545568391140364425L;
+
+    public interface Insert {}
+
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/dto/TheoremType.java

@@ -0,0 +1,5 @@
+package edu.msudenver.tsp.persistence.dto;
+
+public enum TheoremType {
+    THEOREM, PROPOSITION, LEMMA, COROLLARY
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/exception/BadRequestException.java

@@ -0,0 +1,20 @@
+package edu.msudenver.tsp.persistence.exception;
+
+import lombok.Getter;
+
+import java.util.Collections;
+import java.util.List;
+
+public class BadRequestException extends Exception {
+    @Getter private final List<String> errors;
+
+    public BadRequestException(final String message) {
+        super(message);
+        errors = Collections.singletonList(message);
+    }
+
+    public BadRequestException(final List<String> errorMessages) {
+        super(String.join(" ", errorMessages));
+        errors = errorMessages;
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/exception/UnprocessableEntityException.java

@@ -0,0 +1,21 @@
+package edu.msudenver.tsp.persistence.exception;
+
+import lombok.Getter;
+
+import java.util.Collections;
+import java.util.List;
+
+public class UnprocessableEntityException extends Exception {
+    @Getter
+    private final List<String> errors;
+
+    public UnprocessableEntityException(final String message) {
+        super(message);
+        errors = Collections.singletonList(message);
+    }
+
+    public UnprocessableEntityException(final List<String> errorMessages) {
+        super(String.join(" ", errorMessages));
+        errors = errorMessages;
+    }
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/repository/AccountsRepository.java

@@ -0,0 +1,12 @@
+package edu.msudenver.tsp.persistence.repository;
+
+import edu.msudenver.tsp.persistence.dto.Account;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.Optional;
+
+@Repository
+public interface AccountsRepository extends CrudRepository<Account, Integer> {
+    Optional<Account> findByUsername(String username);
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/repository/DefinitionRepository.java

@@ -0,0 +1,11 @@
+package edu.msudenver.tsp.persistence.repository;
+
+
+import edu.msudenver.tsp.persistence.dto.Definition;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+@Repository
+public interface DefinitionRepository extends JpaRepository<Definition, Integer> {
+
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/repository/ProofRepository.java

@@ -0,0 +1,15 @@
+package edu.msudenver.tsp.persistence.repository;
+
+import edu.msudenver.tsp.persistence.dto.Proof;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface ProofRepository extends JpaRepository<Proof, Integer> {
+
+    List<Proof> findByBranch(String branch);
+
+    List<Proof> findByTheoremName(String name);
+}

persistence/src/main/java/edu/msudenver/tsp/persistence/repository/TheoremRepository.java

@@ -0,0 +1,17 @@
+package edu.msudenver.tsp.persistence.repository;
+
+import edu.msudenver.tsp.persistence.dto.Theorem;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.stereotype.Repository;
+
+import java.util.List;
+
+@Repository
+public interface TheoremRepository extends JpaRepository<Theorem, Integer> {
+
+    List<Theorem> findByBranch(String branch);
+
+    List<Theorem> findByProvenStatus(Boolean provenStatus);
+
+    List<Theorem> findByName(String name);
+}

persistence/src/main/resources/application.properties

@@ -0,0 +1,13 @@
+spring.jpa.hibernate.ddl-auto = none
+spring.jpa.database=mysql
+spring.datasource.url=jdbc:mysql://127.0.0.1:3306/pandamonium?autoReconnect=true&useSSL=false&serverTimezone=UTC
+spring.datasource.username=panda
+spring.datasource.password=secret
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL8Dialect
+spring.jpa.show-sql = true
+spring.datasource.tomcat.test-while-idle=true
+spring.datasource.tomcat.validation-query=SELECT 1
+logging.level.org.springframework.web=DEBUG
+spring.datasource.tomcat.max-active=5
+server.port=8090

persistence/src/test/java/edu/msudenver/tsp/persistence/controller/AccountControllerTest.java

@@ -0,0 +1,241 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Account;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.AccountsRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindingResult;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.*;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.*;
+
+@RunWith(MockitoJUnitRunner.class)
+@WebMvcTest(controllers = AccountController.class)
+public class AccountControllerTest {
+    @Mock private AccountsRepository accountsRepository;
+    @InjectMocks private AccountController accountController;
+    @Mock private BindingResult bindingResult;
+
+    @Test
+    public void testGetAllAccounts() {
+        final Account accountDto = createAccount();
+        final List<Account> accountList = new ArrayList<>();
+        accountList.add(accountDto);
+        accountList.add(accountDto);
+
+        when(accountsRepository.findAll()).thenReturn(accountList);
+
+        final ResponseEntity<Iterable<Account>> responseEntity = accountController.getListOfAccounts();
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(account -> assertEquals(accountDto, account));
+    }
+
+    @Test
+    public void testGetAccountById() throws BadRequestException {
+        final Account account = createAccount();
+        when(accountsRepository.findById(anyInt())).thenReturn(Optional.ofNullable(account));
+
+        final ResponseEntity<Account> responseEntity = accountController.getAccountById(1);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(account, responseEntity.getBody());
+        verify(accountsRepository).findById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetAccountById_nullId() throws BadRequestException {
+        accountController.getAccountById(null);
+    }
+
+    @Test
+    public void testGetAccountById_noAccountFound() throws BadRequestException {
+        when(accountsRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity responseEntity = accountController.getAccountById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(accountsRepository).findById(anyInt());
+    }
+
+    @Test
+    public void testGetAccountByUsername() throws BadRequestException {
+        final Account account = createAccount();
+        when(accountsRepository.findByUsername(anyString())).thenReturn(Optional.ofNullable(account));
+
+        final ResponseEntity<Account> responseEntity = accountController.getAccountByUsername("Test username");
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(account, responseEntity.getBody());
+        verify(accountsRepository).findByUsername(anyString());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetAccountById_nullUsername() throws BadRequestException {
+        accountController.getAccountByUsername(null);
+    }
+
+    @Test
+    public void testGetAccountByUsername_noAccountFound() throws BadRequestException {
+        when(accountsRepository.findByUsername(anyString())).thenReturn(Optional.empty());
+
+        final ResponseEntity responseEntity = accountController.getAccountByUsername("Test username");
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(accountsRepository).findByUsername(anyString());
+    }
+
+    @Test
+    public void testInsertAccount() throws UnprocessableEntityException, BadRequestException {
+        final Account account = createAccount();
+        when(accountsRepository.save(any(Account.class))).thenReturn(account);
+        when(accountsRepository.findByUsername(anyString())).thenReturn(Optional.empty());
+
+        final ResponseEntity<Account> responseEntity = accountController.insertAccount(account, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.CREATED, responseEntity.getStatusCode());
+        assertEquals(account, responseEntity.getBody());
+        verify(accountsRepository).save(any(Account.class));
+    }
+
+    @Test
+    public void testInsertAccount_usernameAlreadyExists() throws UnprocessableEntityException, BadRequestException {
+        final Account account = createAccount();
+        when(accountsRepository.findByUsername(anyString())).thenReturn(Optional.of(account));
+
+        final ResponseEntity<Account> responseEntity = accountController.insertAccount(account, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.CONFLICT, responseEntity.getStatusCode());
+        verify(accountsRepository).findByUsername(anyString());
+        verify(accountsRepository, times(0)).save(any(Account.class));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testInsertAccount_accountsDtoIsNull() throws UnprocessableEntityException, BadRequestException {
+        final ResponseEntity responseEntity = accountController.insertAccount(null, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.BAD_REQUEST, responseEntity.getStatusCode());
+        verifyZeroInteractions(accountsRepository);
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testInsertAccount_bindingResultHasErrors() throws UnprocessableEntityException, BadRequestException {
+        final Account account = createAccount();
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        accountController.insertAccount(account, bindingResult);
+    }
+
+    @Test
+    public void testUpdateAccount() throws UnprocessableEntityException, BadRequestException {
+        final Account existingAccount = createAccount();
+        existingAccount.setId(1);
+        existingAccount.setVersion(1);
+        final Account accountUpdate = new Account();
+        accountUpdate.setUsername("Test Update");
+        final Account updatedAccount = existingAccount;
+        updatedAccount.setUsername("Test Update");
+        when(accountsRepository.findById(anyInt())).thenReturn(Optional.of(existingAccount));
+        when(accountsRepository.save(any(Account.class))).thenReturn(updatedAccount);
+
+        final ResponseEntity<Account> responseEntity = accountController.updateAccount(1, accountUpdate, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(updatedAccount, responseEntity.getBody());
+        verify(accountsRepository).findById(anyInt());
+        verify(accountsRepository).save(any(Account.class));
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testUpdateAccount_bindingResultHasErrors() throws UnprocessableEntityException, BadRequestException {
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        accountController.updateAccount(1, createAccount(), bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateAccount_accountsDtoIsNull() throws UnprocessableEntityException, BadRequestException {
+        accountController.updateAccount(1, null, bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateAccount_idIsNull() throws UnprocessableEntityException, BadRequestException {
+        accountController.updateAccount(null, createAccount(), bindingResult);
+    }
+
+    @Test
+    public void testUpdateAccount_accountDoesNotExist() throws UnprocessableEntityException, BadRequestException {
+        when(accountsRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity<Account> responseEntity = accountController.updateAccount(1, createAccount(), bindingResult);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.BAD_REQUEST, responseEntity.getStatusCode());
+        verify(accountsRepository, times(0)).save(any(Account.class));
+    }
+
+    @Test
+    public void testDeleteAccountById() throws BadRequestException {
+        doNothing().when(accountsRepository).deleteById(anyInt());
+
+        final ResponseEntity responseEntity = accountController.deleteAccountById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NO_CONTENT, responseEntity.getStatusCode());
+        verify(accountsRepository).deleteById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testDeleteAccountById_idIsNull() throws BadRequestException {
+        accountController.deleteAccountById(null);
+    }
+
+    private Account createAccount() {
+        final Account account = new Account();
+        account.setUsername("Test username");
+        account.setPassword("test password");
+        account.setAdministrator(true);
+
+        return account;
+    }
+}

persistence/src/test/java/edu/msudenver/tsp/persistence/controller/DefinitionControllerTest.java

@@ -0,0 +1,194 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Definition;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.DefinitionRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindingResult;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.*;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.*;
+
+@RunWith(MockitoJUnitRunner.class)
+@WebMvcTest(controllers = DefinitionController.class)
+public class DefinitionControllerTest {
+    @Mock private DefinitionRepository definitionRepository;
+    @InjectMocks private DefinitionController definitionController;
+    @Mock private BindingResult bindingResult;
+
+    @Test
+    public void testGetAllDefinitions() {
+        final Definition definitionDto = createDefinition();
+        final List<Definition> definitionList = new ArrayList<>();
+        definitionList.add(definitionDto);
+        definitionList.add(definitionDto);
+
+        when(definitionRepository.findAll()).thenReturn(definitionList);
+
+        final ResponseEntity<Iterable<Definition>> responseEntity = definitionController.getAllDefinitions();
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(definition -> assertEquals(definitionDto, definition));
+    }
+
+    @Test
+    public void testGetDefinitionsById() throws BadRequestException {
+        final Definition definition = createDefinition();
+        when(definitionRepository.findById(anyInt())).thenReturn(Optional.ofNullable(definition));
+
+        final ResponseEntity<Definition> responseEntity = definitionController.getDefinitionById(1);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(definition, responseEntity.getBody());
+        verify(definitionRepository).findById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetDefinitionById_nullId() throws BadRequestException {
+        definitionController.getDefinitionById(null);
+    }
+
+    @Test
+    public void testGetDefinitionById_noDefinitionFound() throws BadRequestException {
+        when(definitionRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity responseEntity = definitionController.getDefinitionById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(definitionRepository).findById(anyInt());
+    }
+
+    @Test
+    public void testInsertDefinition() throws BadRequestException, UnprocessableEntityException {
+        final Definition definition = createDefinition();
+        when(definitionRepository.save(any(Definition.class))).thenReturn(definition);
+
+        final ResponseEntity<Definition> responseEntity = definitionController.insertDefinition(definition, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.CREATED, responseEntity.getStatusCode());
+        assertEquals(definition, responseEntity.getBody());
+        verify(definitionRepository).save(any(Definition.class));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testInsertDefinition_definitionDtoIsNull() throws BadRequestException, UnprocessableEntityException {
+        definitionController.insertDefinition(null, bindingResult);
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testInsertDefinition_bindingResultHasErrors() throws BadRequestException, UnprocessableEntityException {
+        final Definition definition = createDefinition();
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        definitionController.insertDefinition(definition, bindingResult);
+    }
+
+    @Test
+    public void testUpdateDefinition() throws BadRequestException, UnprocessableEntityException {
+        final Definition existingDefinition = createDefinition();
+        existingDefinition.setId(1);
+        existingDefinition.setVersion(1);
+        final Definition definitionUpdate = new Definition();
+        definitionUpdate.setName("Test Update");
+        final Definition updatedDefinition = existingDefinition;
+        updatedDefinition.setName("Test Update");
+        when(definitionRepository.findById(anyInt())).thenReturn(Optional.of(existingDefinition));
+        when(definitionRepository.save(any(Definition.class))).thenReturn(updatedDefinition);
+
+        final ResponseEntity<Definition> responseEntity = definitionController.updateDefinition(1, definitionUpdate, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(updatedDefinition, responseEntity.getBody());
+        verify(definitionRepository).findById(anyInt());
+        verify(definitionRepository).save(any(Definition.class));
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testUpdateDefinition_bindingResultErrors() throws BadRequestException, UnprocessableEntityException {
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        definitionController.updateDefinition(1, createDefinition(), bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateDefinition_definitionDtoIsNull() throws BadRequestException, UnprocessableEntityException {
+        definitionController.updateDefinition(1, null, bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateDefinition_idIsNull() throws BadRequestException, UnprocessableEntityException {
+        definitionController.updateDefinition(null, createDefinition(), bindingResult);
+    }
+
+    @Test
+    public void testUpdateDefinition_definitionDoesntExist() throws BadRequestException, UnprocessableEntityException {
+        when(definitionRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity<Definition> responseEntity = definitionController.updateDefinition(1, createDefinition(), bindingResult);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(definitionRepository, times(0)).save(any(Definition.class));
+    }
+
+    @Test
+    public void testDeleteDefinitionById() throws BadRequestException {
+        doNothing().when(definitionRepository).deleteById(anyInt());
+
+        final ResponseEntity responseEntity = definitionController.deleteDefinitionById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NO_CONTENT, responseEntity.getStatusCode());
+        verify(definitionRepository).deleteById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testDeleteDefinitionById_nullId() throws BadRequestException {
+        definitionController.deleteDefinitionById(null);
+    }
+
+    private Definition createDefinition() {
+        final List<String> definitionList = new ArrayList<>();
+        definitionList.add("Test definition 1");
+
+        final List<String> notationList = new ArrayList<>();
+        notationList.add("\\testLaTeX");
+
+        final Definition definition = new Definition();
+        definition.setName("Test Name");
+        definition.setDefinition(definitionList);
+        definition.setNotation(notationList);
+
+        return definition;
+    }
+}

persistence/src/test/java/edu/msudenver/tsp/persistence/controller/ExceptionHandlingControllerTest.java

@@ -0,0 +1,54 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import static org.mockito.Matchers.any;
+
+@RunWith(MockitoJUnitRunner.class)
+public class ExceptionHandlingControllerTest {
+    @Mock
+    ExceptionHandlingController exceptionHandlingController;
+
+    @Test
+    public void testHandleMessageNotReadableException() {
+        exceptionHandlingController.handleMessageNotReadableException(any(), any());
+    }
+
+    @Test
+    public void testHandleMessageInvalidRequestException() {
+        exceptionHandlingController.handleMessageInvalidRequest(any(), any());
+    }
+
+    @Test
+    public void testHandleHttpRequestMethodNotSupportedException() {
+        exceptionHandlingController.handleHttpRequestMethodNotSupported(any());
+    }
+
+    @Test
+    public void testHandleHttpMediaTypeNotSupportedException() {
+        exceptionHandlingController.handleHttpMediaTypeNotSupportedException(any(), any());
+    }
+
+    @Test
+    public void testHandleException() {
+        exceptionHandlingController.handleException(any(), any());
+    }
+
+    @Test
+    public void testHandleMethodArgumentNotValidException() {
+        exceptionHandlingController.handleMethodArgumentNotValidException(any());
+    }
+
+    @Test
+    public void testHandleBadRequestException() {
+        exceptionHandlingController.handleBadRequestException(any());
+    }
+
+    @Test
+    public void testHandleUnprocessableEntityException() {
+        exceptionHandlingController.handleUnprocessableEntityException(any());
+    }
+}

persistence/src/test/java/edu/msudenver/tsp/persistence/controller/ProofControllerTest.java

@@ -0,0 +1,267 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Proof;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.ProofRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindingResult;
+
+import java.util.*;
+
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.*;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.*;
+
+@RunWith(MockitoJUnitRunner.class)
+public class ProofControllerTest {
+    @Mock private ProofRepository proofRepository;
+    @InjectMocks private ProofController proofController;
+    @Mock private BindingResult bindingResult;
+
+    @Test
+    public void testGetAllProofs() {
+        final Proof proofDto = createProof();
+        final List<Proof> listOfProofs = new ArrayList<>();
+        listOfProofs.add(proofDto);
+        listOfProofs.add(proofDto);
+
+        when(proofRepository.findAll()).thenReturn(listOfProofs);
+
+        final ResponseEntity<Iterable<Proof>> responseEntity = proofController.getAllProofs();
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(proof -> assertEquals(proofDto, proof));
+    }
+
+    @Test
+    public void testGetAllProofsByBranch() throws BadRequestException {
+        final Proof proofDto = createProof();
+        final List<Proof> listOfProofs = new ArrayList<>();
+        listOfProofs.add(proofDto);
+        listOfProofs.add(proofDto);
+
+        when(proofRepository.findByBranch(anyString())).thenReturn(listOfProofs);
+
+        final ResponseEntity<List<Proof>> responseEntity = proofController.getAllProofsByBranch("Test_branch");
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(proof -> assertEquals(proofDto, proof));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetAllProfsByBranch_nullBranch() throws BadRequestException {
+        proofController.getAllProofsByBranch(null);
+    }
+
+    @Test
+    public void testGetAllProofsByBranch_noProofsFound() throws BadRequestException {
+        when(proofRepository.findByBranch(anyString())).thenReturn(Collections.emptyList());
+
+        final ResponseEntity<List<Proof>> responseEntity = proofController.getAllProofsByBranch("test-nonexistent-branch");
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void testGetAllProofsByTheoremName() throws BadRequestException {
+        final Proof proofDto = createProof();
+        final List<Proof> listOfProofs = new ArrayList<>();
+        listOfProofs.add(proofDto);
+        listOfProofs.add(proofDto);
+
+        when(proofRepository.findByTheoremName(anyString())).thenReturn(listOfProofs);
+
+        final ResponseEntity<List<Proof>> responseEntity = proofController.getAllProofsByTheoremName("Test_proof");
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(proof -> assertEquals(proofDto, proof));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetAllProofsByTheoremName_nullTheoremName() throws BadRequestException {
+        proofController.getAllProofsByTheoremName(null);
+    }
+
+    @Test
+    public void testGetAllProofsByTheoremName_noProofsFound() throws BadRequestException {
+        when(proofRepository.findByTheoremName(anyString())).thenReturn(Collections.emptyList());
+
+        final ResponseEntity<List<Proof>> responseEntity = proofController.getAllProofsByTheoremName("test-nonexistent-proof");
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void testGetProofById() throws BadRequestException {
+        final Proof proof = createProof();
+        when(proofRepository.findById(anyInt())).thenReturn(Optional.ofNullable(proof));
+
+        final ResponseEntity<Proof> responseEntity = proofController.getProofById(1);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(proof, responseEntity.getBody());
+        verify(proofRepository).findById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetProofById_nullId() throws BadRequestException {
+        proofController.getProofById(null);
+    }
+
+    @Test
+    public void testGetProofById_noProofFound() throws BadRequestException {
+        when(proofRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity responseEntity = proofController.getProofById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(proofRepository).findById(anyInt());
+    }
+
+    @Test
+    public void testInsertProof() throws BadRequestException, UnprocessableEntityException {
+        final Proof proof = createProof();
+        when(proofRepository.save(any(Proof.class))).thenReturn(proof);
+
+        final ResponseEntity<Proof> responseEntity = proofController.insertProof(proof, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.CREATED, responseEntity.getStatusCode());
+        assertEquals(proof, responseEntity.getBody());
+        verify(proofRepository).save(any(Proof.class));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testInsertProof_proofDtoIsNull() throws BadRequestException, UnprocessableEntityException {
+        proofController.insertProof(null, bindingResult);
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testInsertProof_bindingResultHasErrors() throws BadRequestException, UnprocessableEntityException {
+        final Proof proof = createProof();
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        proofController.insertProof(proof, bindingResult);
+    }
+
+    @Test
+    public void testUpdateProof() throws BadRequestException, UnprocessableEntityException {
+        final Proof existingProof = createProof();
+        existingProof.setId(1);
+        existingProof.setVersion(1);
+        final Proof proofUpdate = new Proof();
+        proofUpdate.setTheoremName("Test Update");
+        final Proof updatedProof = existingProof;
+        updatedProof.setTheoremName("Test Update");
+        when(proofRepository.findById(anyInt())).thenReturn(Optional.of(existingProof));
+        when(proofRepository.save(any(Proof.class))).thenReturn(updatedProof);
+
+        final ResponseEntity<Proof> responseEntity = proofController.updateProof(1, proofUpdate, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(updatedProof, responseEntity.getBody());
+        verify(proofRepository).findById(anyInt());
+        verify(proofRepository).save(any(Proof.class));
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testUpdateProof_bindingResultHasErrors() throws BadRequestException, UnprocessableEntityException {
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        proofController.updateProof(1, createProof(), bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateProof_proofDtoIsNull() throws BadRequestException, UnprocessableEntityException {
+        proofController.updateProof(1, null, bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateProof_idIsNull() throws BadRequestException, UnprocessableEntityException {
+        proofController.updateProof(null, createProof(), bindingResult);
+    }
+
+    @Test
+    public void testUpdateProof_theoremDoesNotExist() throws BadRequestException, UnprocessableEntityException {
+        when(proofRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity<Proof> responseEntity = proofController.updateProof(1, createProof(), bindingResult);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(proofRepository, times(0)).save(any(Proof.class));
+    }
+
+    @Test
+    public void testDeleteProofById() throws BadRequestException {
+        doNothing().when(proofRepository).deleteById(anyInt());
+
+        final ResponseEntity responseEntity = proofController.deleteProofById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NO_CONTENT, responseEntity.getStatusCode());
+        verify(proofRepository).deleteById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testDeleteProofById_idIsNull() throws BadRequestException {
+        proofController.deleteProofById(null);
+    }
+
+    private Proof createProof() {
+        final List<String> referencedTheoremsList = new ArrayList<>();
+        referencedTheoremsList.add("test theorem 1");
+        referencedTheoremsList.add("test theorem 2");
+
+        final List<String> referencedDefinitionsList = new ArrayList<>();
+        referencedDefinitionsList.add("test definition 1");
+        referencedDefinitionsList.add("test definition 2");
+
+        final Proof proof = new Proof();
+        proof.setTheoremName("Test proof");
+        proof.setTheorem(1);
+        proof.setBranch("Test branch");
+        proof.setProof("test proof");
+        proof.setDateCreated(new Date());
+        proof.setReferencedTheorems(referencedTheoremsList);
+        proof.setReferencedDefinitions(referencedDefinitionsList);
+
+        return proof;
+    }
+}

persistence/src/test/java/edu/msudenver/tsp/persistence/controller/TheoremControllerTest.java

@@ -0,0 +1,316 @@
+package edu.msudenver.tsp.persistence.controller;
+
+import edu.msudenver.tsp.persistence.dto.Theorem;
+import edu.msudenver.tsp.persistence.dto.TheoremType;
+import edu.msudenver.tsp.persistence.exception.BadRequestException;
+import edu.msudenver.tsp.persistence.exception.UnprocessableEntityException;
+import edu.msudenver.tsp.persistence.repository.TheoremRepository;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindingResult;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.*;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Mockito.*;
+
+@RunWith(MockitoJUnitRunner.class)
+@WebMvcTest(controllers = TheoremController.class)
+public class TheoremControllerTest {
+   @Mock private TheoremRepository theoremRepository;
+   @InjectMocks private TheoremController theoremController;
+   @Mock private BindingResult bindingResult;
+
+   @Test
+   public void testGetAllTheorems() {
+       final Theorem theoremDto = createTheorem();
+       final List<Theorem> listOfTheorems = new ArrayList<>();
+       listOfTheorems.add(theoremDto);
+       listOfTheorems.add(theoremDto);
+
+       when(theoremRepository.findAll()).thenReturn(listOfTheorems);
+
+       final ResponseEntity<Iterable<Theorem>> responseEntity = theoremController.getAllTheorems();
+
+       assertNotNull(responseEntity);
+       assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+       assertTrue(responseEntity.hasBody());
+       assertNotNull(responseEntity.getBody());
+
+       responseEntity.getBody().forEach(theorem -> assertEquals(theoremDto, theorem));
+   }
+
+    @Test
+    public void testGetTheoremById() throws BadRequestException {
+        final Theorem theorem = createTheorem();
+        when(theoremRepository.findById(anyInt())).thenReturn(Optional.ofNullable(theorem));
+
+        final ResponseEntity<Theorem> responseEntity = theoremController.getTheoremById(1);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(theorem, responseEntity.getBody());
+        verify(theoremRepository).findById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetTheoremById_nullId() throws BadRequestException {
+        theoremController.getTheoremById(null);
+    }
+
+    @Test
+    public void testGetTheoremById_noTheoremFound() throws BadRequestException {
+        when(theoremRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity responseEntity = theoremController.getTheoremById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(theoremRepository).findById(anyInt());
+    }
+
+    @Test
+    public void testGetAllTheoremsByBranch() throws BadRequestException {
+        final Theorem theoremDto = createTheorem();
+        final List<Theorem> listOfTheorems = new ArrayList<>();
+        listOfTheorems.add(theoremDto);
+        listOfTheorems.add(theoremDto);
+
+        when(theoremRepository.findByBranch(anyString())).thenReturn(listOfTheorems);
+
+        final ResponseEntity<List<Theorem>> responseEntity = theoremController.getAllTheoremsByBranch("test-branch");
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(theorem -> assertEquals(theoremDto, theorem));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetAllTheoremsByBranch_nullBranch() throws BadRequestException {
+        theoremController.getAllTheoremsByBranch(null);
+    }
+
+    @Test
+    public void testGetAllTheoremsByBranch_noTheoremsFound() throws BadRequestException {
+       when(theoremRepository.findByBranch(anyString())).thenReturn(Collections.emptyList());
+
+       final ResponseEntity<List<Theorem>> responseEntity = theoremController.getAllTheoremsByBranch("test_nonexistent_branch");
+
+       assertNotNull(responseEntity);
+       assertFalse(responseEntity.hasBody());
+       assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void testGetAllTheoremsByProvenStatus() throws BadRequestException {
+        final Theorem theoremDto = createTheorem();
+        final List<Theorem> listOfTheorems = new ArrayList<>();
+        listOfTheorems.add(theoremDto);
+        listOfTheorems.add(theoremDto);
+
+        when(theoremRepository.findByProvenStatus(anyBoolean())).thenReturn(listOfTheorems);
+
+        final ResponseEntity<List<Theorem>> responseEntity = theoremController.getAllTheoremsByProvenStatus("true");
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(theorem -> assertEquals(theoremDto, theorem));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetAllTheoremsByProvenStatus_nullProvenStatus() throws BadRequestException {
+        theoremController.getAllTheoremsByProvenStatus(null);
+    }
+
+    @Test
+    public void testGetAllTheoremsByProvenStatus_invalidProvenStatus() throws BadRequestException {
+        final ResponseEntity<List<Theorem>> responseEntity = theoremController.getAllTheoremsByProvenStatus("test");
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void testGetAllTheoremsByProvenStatus_noTheoremsFound() throws BadRequestException {
+        when(theoremRepository.findByProvenStatus(anyBoolean())).thenReturn(Collections.emptyList());
+
+        final ResponseEntity<List<Theorem>> responseEntity = theoremController.getAllTheoremsByProvenStatus("false");
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void testGetAllTheoremsByName() throws BadRequestException {
+        final Theorem theoremDto = createTheorem();
+        final List<Theorem> listOfTheorems = new ArrayList<>();
+        listOfTheorems.add(theoremDto);
+        listOfTheorems.add(theoremDto);
+
+        when(theoremRepository.findByName(anyString())).thenReturn(listOfTheorems);
+
+        final ResponseEntity<List<Theorem>> responseEntity = theoremController.getAllTheoremsByName("Test_Theorem");
+
+        assertNotNull(responseEntity);
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+
+        responseEntity.getBody().forEach(theorem -> assertEquals(theoremDto, theorem));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testGetAllTheoremsByName_nullName() throws BadRequestException {
+        theoremController.getAllTheoremsByName(null);
+    }
+
+    @Test
+    public void testGetAllTheoremsByName_noNameFound() throws BadRequestException {
+        when(theoremRepository.findByName(anyString())).thenReturn(Collections.emptyList());
+
+        final ResponseEntity<List<Theorem>> responseEntity = theoremController.getAllTheoremsByName("No-name");
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
+    @Test
+    public void testInsertTheorem() throws BadRequestException, UnprocessableEntityException {
+        final Theorem theorem = createTheorem();
+        when(theoremRepository.save(any(Theorem.class))).thenReturn(theorem);
+
+        final ResponseEntity<Theorem> responseEntity = theoremController.insertTheorem(theorem, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertNotNull(responseEntity.getBody());
+        assertEquals(HttpStatus.CREATED, responseEntity.getStatusCode());
+        assertEquals(theorem, responseEntity.getBody());
+        verify(theoremRepository).save(any(Theorem.class));
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testInsertTheorem_theoremDtoIsNull() throws BadRequestException, UnprocessableEntityException {
+        theoremController.insertTheorem(null, bindingResult);
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testInsertTheorem_bindingResultHasErrors() throws BadRequestException, UnprocessableEntityException {
+        final Theorem theorem = createTheorem();
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        theoremController.insertTheorem(theorem, bindingResult);
+    }
+
+    @Test
+    public void testUpdateTheorem() throws BadRequestException, UnprocessableEntityException {
+        final Theorem existingTheorem = createTheorem();
+        existingTheorem.setId(1);
+        existingTheorem.setVersion(1);
+        final Theorem theoremUpdate = new Theorem();
+        theoremUpdate.setName("Test Update");
+        final Theorem updatedTheorem = existingTheorem;
+        updatedTheorem.setName("Test Update");
+        when(theoremRepository.findById(anyInt())).thenReturn(Optional.of(existingTheorem));
+        when(theoremRepository.save(any(Theorem.class))).thenReturn(updatedTheorem);
+
+        final ResponseEntity<Theorem> responseEntity = theoremController.updateTheorem(1, theoremUpdate, bindingResult);
+
+        assertNotNull(responseEntity);
+        assertTrue(responseEntity.hasBody());
+        assertEquals(HttpStatus.OK, responseEntity.getStatusCode());
+        assertEquals(updatedTheorem, responseEntity.getBody());
+        verify(theoremRepository).findById(anyInt());
+        verify(theoremRepository).save(any(Theorem.class));
+    }
+
+    @Test(expected = UnprocessableEntityException.class)
+    public void testUpdateTheorem_bindingResultHasErrors() throws BadRequestException, UnprocessableEntityException {
+        when(bindingResult.hasErrors()).thenReturn(true);
+
+        theoremController.updateTheorem(1, createTheorem(), bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateTheorem_theoremDtoIsNull() throws BadRequestException, UnprocessableEntityException {
+        theoremController.updateTheorem(1, null, bindingResult);
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testUpdateTheorem_idIsNull() throws BadRequestException, UnprocessableEntityException {
+        theoremController.updateTheorem(null, createTheorem(), bindingResult);
+    }
+
+    @Test
+    public void testUpdateTheorem_theoremDoesNotExist() throws BadRequestException, UnprocessableEntityException {
+        when(theoremRepository.findById(anyInt())).thenReturn(Optional.empty());
+
+        final ResponseEntity<Theorem> responseEntity = theoremController.updateTheorem(1, createTheorem(), bindingResult);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+        verify(theoremRepository, times(0)).save(any(Theorem.class));
+    }
+
+    @Test
+    public void testDeleteTheoremById() throws BadRequestException {
+        doNothing().when(theoremRepository).deleteById(anyInt());
+
+        final ResponseEntity responseEntity = theoremController.deleteTheoremById(1);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NO_CONTENT, responseEntity.getStatusCode());
+        verify(theoremRepository).deleteById(anyInt());
+    }
+
+    @Test(expected = BadRequestException.class)
+    public void testDeleteTheoremById_idIsNull() throws BadRequestException {
+        theoremController.deleteTheoremById(null);
+    }
+
+   private Theorem createTheorem() {
+       final List<String> referencedTheoremsList = new ArrayList<>();
+       referencedTheoremsList.add("test theorem 1");
+       referencedTheoremsList.add("test theorem 2");
+
+       final List<String> referencedDefinitionsList = new ArrayList<>();
+       referencedDefinitionsList.add("test definition 1");
+       referencedDefinitionsList.add("test definition 2");
+
+       final Theorem theorem = new Theorem();
+       theorem.setName("Test theorem");
+       theorem.setTheorem("test theorem thing here");
+       theorem.setBranch("Test branch");
+       theorem.setProvenStatus(true);
+       theorem.setTheoremType(TheoremType.THEOREM);
+       theorem.setReferencedTheorems(referencedTheoremsList);
+       theorem.setReferencedDefinitions(referencedDefinitionsList);
+
+       return theorem;
+   }
+}

services/build.gradle

@@ -0,0 +1,32 @@
+plugins {
+    id 'java'
+}
+
+group 'edu.msudenver.tsp'
+version '1.0'
+
+sourceCompatibility = 1.8
+
+sonarqube {
+    properties {
+        property "sonar.projectName", 'Theorem Prover Services'
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    compile group: 'org.apache.httpcomponents', name: 'httpcore', version: '4.4.11'
+    compile group: 'org.apache.httpcomponents', name: 'fluent-hc', version: '4.5.7'
+    compile group: 'com.google.code.gson', name: 'gson', version: '2.7'
+    compile group: 'org.springframework.boot', name: 'spring-boot-devtools', version: '2.0.5.RELEASE'
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.0.5.RELEASE'
+    compile group: 'javax.persistence', name: 'javax.persistence-api', version: '2.2'
+    compile fileTree(dir: 'lib', include: '**/*.jar')
+
+    testCompile "org.springframework:spring-test:5.0.9.RELEASE"
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+    testCompile group: 'org.springframework', name: 'spring-test', version: '5.1.5.RELEASE'
+}

services/src/integrationTest/java/edu/msudenver/tsp/services/DefinitionServiceIntegrationTest.java

@@ -0,0 +1,85 @@
+package edu.msudenver.tsp.services;
+
+import edu.msudenver.tsp.services.dto.Definition;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+import static org.hamcrest.CoreMatchers.equalTo;
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.*;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = ServicesTestConfig.class)
+@TestPropertySource(locations = "classpath:test.properties")
+public class DefinitionServiceIntegrationTest {
+    @Autowired private DefinitionService definitionService;
+
+    @Test
+    public void testCRUD() {
+        final Definition testDefinition = createDefinition();
+        final Optional<Definition> createdDefinition = definitionService.createDefinition(testDefinition);
+
+        assertTrue(createdDefinition.isPresent());
+        assertNotEquals(0, createdDefinition.get().getId());
+        assertThat(createdDefinition.get().getVersion(), is(0));
+        assertThat(createdDefinition.get().getName(), is("Test Name"));
+        assertNotNull(createdDefinition.get().getDefinition());
+        assertThat(createdDefinition.get().getDefinition().size(), is(1));
+        assertThat(createdDefinition.get().getDefinition().get(0), is("Test definition 1"));
+        assertNotNull(createdDefinition.get().getNotation());
+        assertThat(createdDefinition.get().getNotation().size(), is(1));
+        assertThat(createdDefinition.get().getNotation().get(0), is("\\testLaTeX"));
+
+        final Optional<Definition> definitionFoundById = definitionService.findById(createdDefinition.get().getId());
+
+        assertThat(definitionFoundById.get(), is(equalTo(createdDefinition.get())));
+
+        final Definition definitionUpdate = new Definition();
+        definitionUpdate.setId(createdDefinition.get().getId());
+        definitionUpdate.setName("Test Update");
+
+        final Optional<Definition> updatedDefinition = definitionService.updateDefinition(definitionUpdate);
+
+        assertTrue(updatedDefinition.isPresent());
+        assertNotEquals(0, updatedDefinition.get().getId());
+        assertThat(updatedDefinition.get().getVersion(), is(1));
+        assertThat(updatedDefinition.get().getName(), is("Test Update"));
+        assertNotNull(updatedDefinition.get().getDefinition());
+        assertThat(updatedDefinition.get().getDefinition().size(), is(1));
+        assertThat(updatedDefinition.get().getDefinition().get(0), is("Test definition 1"));
+        assertNotNull(updatedDefinition.get().getNotation());
+        assertThat(updatedDefinition.get().getNotation().size(), is(1));
+        assertThat(updatedDefinition.get().getNotation().get(0), is("\\testLaTeX"));
+
+        final boolean deletionWasSuccessful = definitionService.deleteDefinition(updatedDefinition.get());
+
+        assertThat(deletionWasSuccessful, is(true));
+
+        final Optional<Definition> deletedDefinitionFoundById = definitionService.findById(createdDefinition.get().getId());
+
+        assertFalse(deletedDefinitionFoundById.isPresent());
+    }
+
+    private Definition createDefinition() {
+        final List<String> definitionList = new ArrayList<>();
+        definitionList.add("Test definition 1");
+
+        final List<String> notationList = new ArrayList<>();
+        notationList.add("\\testLaTeX");
+
+        final Definition definition = new Definition();
+        definition.setName("Test Name");
+        definition.setDefinition(definitionList);
+        definition.setNotation(notationList);
+
+        return definition;
+    }
+}

services/src/integrationTest/java/edu/msudenver/tsp/services/ServicesTestConfig.java

@@ -0,0 +1,17 @@
+package edu.msudenver.tsp.services;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.ComponentScan;
+import org.springframework.context.annotation.Configuration;
+
+@Configuration
+@ComponentScan
+public class ServicesTestConfig {
+
+    @Bean
+    @Autowired
+    public UserService userService(final RestService restService) {
+        return new UserService(restService);
+    }
+}

services/src/integrationTest/java/edu/msudenver/tsp/services/UserServiceIntegrationTest.java

@@ -0,0 +1,74 @@
+package edu.msudenver.tsp.services;
+
+import edu.msudenver.tsp.services.dto.Account;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.TestPropertySource;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+import java.util.Date;
+import java.util.Optional;
+
+import static org.junit.Assert.*;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(classes = ServicesTestConfig.class)
+@TestPropertySource("classpath:test.properties")
+public class UserServiceIntegrationTest {
+    @Autowired
+    @Qualifier("userService")
+    private UserService userService;
+
+    @Test
+    public void testCRUD() {
+        final Account testAccount = createAccount();
+
+        final Optional<Account> testCreatedAccount = userService.createAccount(testAccount);
+        assertTrue(testCreatedAccount.isPresent());
+        final Account returnedAccount = testCreatedAccount.get();
+        assertEquals("test_user", returnedAccount.getUsername());
+        assertEquals("test_password", returnedAccount.getPassword());
+        assertFalse(returnedAccount.isAdministrator());
+
+        final Optional<Account> getAccountById = userService.findAccountById(returnedAccount.getId());
+        assertTrue(getAccountById.isPresent());
+        final Account returnedAccountById = getAccountById.get();
+        assertEquals("test_user", returnedAccountById.getUsername());
+        assertEquals("test_password", returnedAccountById.getPassword());
+        assertFalse(returnedAccountById.isAdministrator());
+
+        final Optional<Account> getAccountByUsername = userService.findAccountByUsername(returnedAccount.getUsername());
+        assertTrue(getAccountByUsername.isPresent());
+        final Account returnedAccountByUsername = getAccountByUsername.get();
+        assertEquals("test_user", returnedAccountByUsername.getUsername());
+        assertEquals("test_password", returnedAccountByUsername.getPassword());
+        assertFalse(returnedAccountById.isAdministrator());
+
+        returnedAccount.setUsername("test_updatedUser");
+        returnedAccount.setPassword("test_updatedPassword");
+
+        final Optional<Account> updatedAccount = userService.updateAccount(returnedAccount);
+        assertTrue(updatedAccount .isPresent());
+        final Account returnedUpdatedAccount = updatedAccount.get();
+        assertEquals("test_updatedUser", returnedUpdatedAccount.getUsername());
+        assertEquals("test_updatedPassword", returnedUpdatedAccount.getPassword());
+        assertFalse(returnedUpdatedAccount.isAdministrator());
+
+        final boolean result = userService.deleteAccount(returnedUpdatedAccount);
+        assertTrue(result);
+    }
+
+    private Account createAccount() {
+        final Account testAccount = new Account();
+        testAccount.setUsername("test_user");
+        testAccount.setPassword("test_password");
+        testAccount.setAdministrator(false);
+        testAccount.setLastLogin(new Date());
+
+        return testAccount;
+    }
+
+}

services/src/integrationTest/resources/test.properties

@@ -0,0 +1,3 @@
+persistence.api.connection.timeout.milliseconds=5000
+persistence.api.socket.timeout.milliseconds=10000
+persistence.api.base.url=http://localhost:8090/

services/src/main/java/edu/msudenver/tsp/services/DefinitionService.java

@@ -0,0 +1,186 @@
+package edu.msudenver.tsp.services;
+
+import com.google.gson.GsonBuilder;
+import com.google.gson.reflect.TypeToken;
+import edu.msudenver.tsp.services.dto.Definition;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@Service
+public class DefinitionService {
+    private final RestService restService;
+    @Value("${persistence.api.connection.timeout.milliseconds}") private int connectionTimeoutMilliseconds;
+    @Value("${persistence.api.socket.timeout.milliseconds}") private int socketTimeoutMilliseconds;
+    @Value("${persistence.api.base.url}") private String persistenceApiBaseUrl;
+
+    @Autowired
+    public DefinitionService(final RestService restService) {
+        this.restService = restService;
+    }
+
+    public Optional<List<Definition>> getAllDefinitions() {
+        final Instant start = Instant.now();
+
+        try {
+            final TypeToken<List<Definition>> typeToken = new TypeToken<List<Definition>>(){};
+            final Optional<List<Definition>> persistenceApiResponse =
+                    restService.get(persistenceApiBaseUrl + "definitions/",
+                            typeToken, connectionTimeoutMilliseconds, socketTimeoutMilliseconds, null);
+
+            if (persistenceApiResponse.isPresent()) {
+                LOG.info("Returning {}", persistenceApiResponse.get());
+            } else {
+                LOG.info("Unable to get list of definitions");
+            }
+
+            return persistenceApiResponse;
+        } catch (final Exception e) {
+            LOG.error("Error getting list of definitions!", e);
+            return Optional.empty();
+        } finally {
+            LOG.info("Get all definitions request took {}ms", Duration.between(start, Instant.now()).toMillis());
+        }
+    }
+
+    public Optional<Definition> findById(final int id) {
+        if (id == 0) {
+            LOG.error("Null id specified; returning {}");
+            return Optional.empty();
+        }
+
+        LOG.info("Sending request to find definition by id {}", id);
+        final Instant start = Instant.now();
+
+        try {
+            final TypeToken<Definition> typeToken = new TypeToken<Definition>(){};
+            final Optional<Definition> persistenceApiResponse = restService.get(persistenceApiBaseUrl + "definitions/" + id,
+                    typeToken, connectionTimeoutMilliseconds, socketTimeoutMilliseconds, null);
+
+            if (persistenceApiResponse.isPresent()) {
+                LOG.info("Returning {}", persistenceApiResponse.get());
+            } else {
+                LOG.info("Unable to find definition with id {}", id);
+            }
+
+            return persistenceApiResponse;
+        } catch (final Exception e) {
+            LOG.error("Error finding definition by id", e);
+            return Optional.empty();
+        } finally {
+            LOG.info("Find by id request took {}ms", Duration.between(start, Instant.now()).toMillis());
+        }
+    }
+
+    public Optional<Definition> createDefinition(final Definition definition) {
+        if (definition == null) {
+            LOG.error("Given null definition, returning {}");
+            return Optional.empty();
+        }
+
+        LOG.info("Sending request to insert definition {}", definition);
+        final Instant start = Instant.now();
+
+        try {
+            final TypeToken<Definition> typeToken = new TypeToken<Definition>() {};
+            final Optional<Definition> persistenceApiResponse = restService.post(persistenceApiBaseUrl + "definitions/",
+                    new GsonBuilder().create().toJson(definition),
+                    typeToken,
+                    connectionTimeoutMilliseconds,
+                    socketTimeoutMilliseconds);
+
+            if (persistenceApiResponse.isPresent()) {
+                LOG.info("Creation successful. Returning {}", persistenceApiResponse.get());
+            } else {
+                LOG.info("Unable to create new definition {}", definition);
+            }
+
+            return persistenceApiResponse;
+        } catch (final Exception e) {
+            LOG.error("Error creating new definition", e);
+            return Optional.empty();
+        } finally {
+            LOG.info("Create new definition request took {}ms", Duration.between(start, Instant.now()).toMillis());
+        }
+    }
+
+    public Optional<Definition> updateDefinition(final Definition definition) {
+        if (definition == null) {
+            LOG.error("Given null definition, returning {}");
+            return Optional.empty();
+        }
+
+        if (definition.getId() == 0) {
+            LOG.error("Given invalid id 0, returning {}");
+            return Optional.empty();
+        }
+
+        LOG.info("Sending request to update definition {}", definition);
+        final Instant start = Instant.now();
+
+        try {
+            final TypeToken<Definition> typeToken = new TypeToken<Definition>(){};
+            final Optional<Definition> persistenceApiResponse = restService.patch(persistenceApiBaseUrl + "definitions/" + definition.getId(),
+                    new GsonBuilder().create().toJson(definition),
+                    typeToken,
+                    connectionTimeoutMilliseconds,
+                    socketTimeoutMilliseconds);
+
+            if (persistenceApiResponse.isPresent()) {
+                LOG.info("Update successful. Returning {}", persistenceApiResponse.get());
+            } else {
+                LOG.info("Unable to update definition {}", definition);
+            }
+
+            return persistenceApiResponse;
+        } catch (final Exception e) {
+            LOG.error("Error updating definition", e);
+            return Optional.empty();
+        } finally {
+            LOG.info("Update definition request took {}ms", Duration.between(start, Instant.now()).toMillis());
+        }
+    }
+
+    public boolean deleteDefinition(final Definition definition) {
+        if (definition == null) {
+            LOG.error("Given null definition, returning false");
+            return false;
+        }
+
+        if (definition.getId() == 0) {
+            LOG.error("Given invalid id 0, returning false");
+            return false;
+        }
+
+        LOG.info("Sending request to delete definition {}", definition);
+        final Instant start = Instant.now();
+
+        try {
+            final boolean deleteIsSuccessful = restService.delete(persistenceApiBaseUrl + "definitions/" + definition.getId(),
+                    connectionTimeoutMilliseconds,
+                    socketTimeoutMilliseconds,
+                    HttpStatus.NO_CONTENT);
+
+            if (deleteIsSuccessful) {
+                LOG.info("Deletion successful. Returning true");
+            } else {
+                LOG.info("Unable to delete definition {}", definition);
+            }
+
+            return deleteIsSuccessful;
+        } catch (final Exception e) {
+            LOG.error("Error when deleting definition", e);
+            return false;
+        } finally {
+            LOG.info("Delete definition request took {}ms", Duration.between(start, Instant.now()).toMillis());
+        }
+    }
+}

services/src/main/java/edu/msudenver/tsp/services/RestService.java

@@ -0,0 +1,105 @@
+package edu.msudenver.tsp.services;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+import edu.msudenver.tsp.services.factory.RequestFactory;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.http.HttpResponse;
+import org.apache.http.client.fluent.Request;
+import org.apache.http.util.EntityUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.HttpStatus;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+import java.util.Optional;
+
+@Slf4j
+@Service
+public class RestService {
+    private static final Gson GSON = new Gson();
+    private final RequestFactory requestFactory;
+
+    @Autowired
+    public RestService(final RequestFactory requestFactory) {
+        this.requestFactory = requestFactory;
+    }
+
+    public boolean delete(final String uri, final Integer connectionTimeout, final Integer socketTimeout, final HttpStatus httpStatus) {
+        LOG.info("Sending DELETE {}", uri);
+        final Optional<HttpResponse> response = send(requestFactory.delete(uri), null, connectionTimeout, socketTimeout);
+
+        return response.isPresent() && response.get().getStatusLine().getStatusCode() == httpStatus.value();
+    }
+
+    <T> Optional<T> get(final String uri, final TypeToken<T> type, final Integer connectionTimeout, final Integer socketTimeout, final String auth) {
+        LOG.info("Sending GET {}", uri);
+        return send(requestFactory.get(uri), auth, connectionTimeout, socketTimeout, type);
+    }
+
+    <T> Optional<T> post(final String uri, final String requestJson, final TypeToken<T> type, final Integer connectionTimeout, final Integer socketTimeout) {
+        LOG.info("Sending POST {} with body: {}", uri, requestJson);
+        return send(requestFactory.post(uri, requestJson), null, connectionTimeout, socketTimeout, type);
+    }
+
+    Optional<HttpResponse> post(final String uri, final String requestJson, final Integer connectionTimeout, final Integer socketTimeout) {
+        LOG.info("Sending POST {} with body: {}", uri, requestJson);
+        return send(requestFactory.post(uri, requestJson), null, connectionTimeout, socketTimeout);
+    }
+
+    <T> Optional<T> put(final String uri, final String requestJson, final TypeToken<T> type, final Integer connectionTimeout, final Integer socketTimeout, final String auth) {
+        LOG.info("Sending PUT {} with body: {}", uri, requestJson);
+        return send(requestFactory.put(uri, requestJson), auth, connectionTimeout, socketTimeout, type);
+    }
+
+    <T> Optional<T> patch(final String uri, final String requestJson, final TypeToken<T> type, final Integer connectionTimeout, final Integer socketTimeout) {
+        LOG.info("Sending PATCH {} with body: {}", uri, requestJson);
+        return send(requestFactory.patch(uri, requestJson), null, connectionTimeout, socketTimeout, type);
+    }
+
+    private <T> Optional<T> send(final Request request, final String auth, final Integer connectionTimeout, final Integer socketTimeout, final TypeToken<T> type) {
+        try {
+            final Optional<HttpResponse> optionalHttpResponse = send(request, auth, connectionTimeout, socketTimeout);
+            if (optionalHttpResponse.isPresent()) {
+                final HttpResponse httpResponse = optionalHttpResponse.get();
+                LOG.info("Received {} response", httpResponse.getStatusLine().getStatusCode());
+
+                final String jsonResponse = httpResponse.getEntity() == null ? null : EntityUtils.toString(httpResponse.getEntity());
+                if (StringUtils.isNotBlank(jsonResponse)) {
+                    final T responses = GSON.fromJson(jsonResponse, type.getType());
+                    if (responses instanceof List) {
+                        LOG.info("Found {} responses.", ((List) responses).size());
+                        if (((List) responses).isEmpty()) {
+                            return Optional.empty();
+                        }
+                    }
+
+                    return Optional.ofNullable(responses);
+                }
+            }
+        } catch (final Exception e) {
+            LOG.error("Could not send request", e);
+        }
+
+        return Optional.empty();
+    }
+
+    private Optional<HttpResponse> send(final Request request, final String auth, final Integer connectionTimeout, final Integer socketTimeout) {
+        if (StringUtils.isNotBlank(auth)) {
+            request.addHeader("Authorization", "Basic " + auth);
+        }
+
+        try {
+            return Optional.ofNullable(request.connectTimeout(connectionTimeout)
+                    .socketTimeout(socketTimeout)
+                    .execute()
+                    .returnResponse());
+        } catch (final Exception e) {
+            LOG.error("Could not send request", e);
+            return Optional.empty();
+        }
+    }
+}
+
+