PAN-48 Created the AccountController and created the copyNonNullProperties method

pandamonium-theorem-prover/utilities/build.gradle

@@ -18,6 +18,7 @@ repositories {
 }
 
 dependencies {
-    testCompile group: 'junit', name: 'junit', version: '4.12'
     compile fileTree(dir: 'lib', include: '**/*.jar')
+
+    testCompile group: 'junit', name: 'junit', version: '4.12'
 }

pandamonium-theorem-prover/utilities/src/main/java/edu/msudenver/tsp/utilities/PersistenceUtilities.java

@@ -0,0 +1,27 @@
+package edu.msudenver.tsp.utilities;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.BeanWrapper;
+import org.springframework.beans.BeanWrapperImpl;
+
+import java.beans.FeatureDescriptor;
+import java.util.stream.Stream;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public abstract class PersistenceUtilities {
+
+    private static String[] getNullPropertyNames(final Object source) {
+        final BeanWrapper wrappedSource = new BeanWrapperImpl(source);
+        return Stream.of(wrappedSource.getPropertyDescriptors())
+                .map(FeatureDescriptor::getName)
+                .filter(propertyName -> wrappedSource.getPropertyValue(propertyName) == null
+                        || propertyName.equals("id"))
+                .toArray(String[]::new);
+    }
+
+    public static void copyNonNullProperties(final Object source, final Object target) {
+        BeanUtils.copyProperties(source, target, getNullPropertyNames(source));
+    }
+}