PAN-52 Added findByName to the TheoremRepository, and to the TheoremController as well as the corresponding tests, and a foreign key mapping from the proofs table to the corresponding theorem in the theorems table

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

@@ -101,6 +101,36 @@ public class TheoremController {
         return new ResponseEntity<>(listOfTheorems, HttpStatus.OK);
     }
 
+    @GetMapping("/{name}")
+    public @ResponseBody
+    ResponseEntity<List<TheoremDto>> getAllTheoremsByName(@PathVariable("name") final String name) {
+        LOG.info("Received request to query for theorems whose name is " + name);
+        if (name == null) {
+            LOG.error("ERROR: name was null");
+            return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
+        }
+
+        LOG.debug("Querying for theorems with name " + name);
+
+        final StopWatch stopWatch = new StopWatch();
+        stopWatch.start();
+
+        final List<TheoremDto> listOfTheorems = theoremRepository.findByName(name);
+
+        stopWatch.stop();
+
+        LOG.debug("Received response from server: query took " + stopWatch.getTotalTimeMillis() + "ms to complete");
+        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<TheoremDto> getTheoremById(@PathVariable("id") final Integer id) {

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

@@ -12,4 +12,6 @@ public interface TheoremRepository extends JpaRepository<TheoremDto, Integer> {
     List<TheoremDto> findByBranch(String branch);
 
     List<TheoremDto> findByProvenStatus(Boolean provenStatus);
+
+    List<TheoremDto> findByName(String name);
 }

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

@@ -166,6 +166,46 @@ public class TheoremControllerTest {
         assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
     }
 
+    @Test
+    public void testGetAllTheoremsByName() {
+        final TheoremDto theoremDto = createTheorem();
+        final List<TheoremDto> listOfTheorems = new ArrayList<>();
+        listOfTheorems.add(theoremDto);
+        listOfTheorems.add(theoremDto);
+
+        when(theoremRepository.findByName(anyString())).thenReturn(listOfTheorems);
+
+        final ResponseEntity<List<TheoremDto>> 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
+    public void testGetAllTheoremsByName_nullName() {
+        final ResponseEntity<List<TheoremDto>> responseEntity = theoremController.getAllTheoremsByName(null);
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.BAD_REQUEST, responseEntity.getStatusCode());
+        verifyZeroInteractions(theoremRepository);
+    }
+
+    @Test
+    public void testGetAllTheoremsByName_noNameFound() {
+        when(theoremRepository.findByName(anyString())).thenReturn(Collections.emptyList());
+
+        final ResponseEntity<List<TheoremDto>> responseEntity = theoremController.getAllTheoremsByName("No name");
+
+        assertNotNull(responseEntity);
+        assertFalse(responseEntity.hasBody());
+        assertEquals(HttpStatus.NOT_FOUND, responseEntity.getStatusCode());
+    }
+
     @Test
     public void testInsertTheorem() {
         final TheoremDto theoremDto = createTheorem();