Update from titan to using janusgraph

Issue-ID: AAI-949
Change-Id: I70029806d3c96f7732778d27a8c7ff75dc5059de
Signed-off-by: Kajur, Harish (vk250x) <vk250x@att.com>

27 files changed, 185 insertions, 187 deletions

diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/AuditTitan.java b/aai-core/src/main/java/org/onap/aai/db/schema/AuditJanusGraph.java
index 03c0f9ae..e8ac6ae0 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/AuditTitan.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/AuditJanusGraph.java
@@ -25,22 +25,22 @@ import java.util.LinkedHashSet;
 
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 
-import com.thinkaurelius.titan.core.EdgeLabel;
-import com.thinkaurelius.titan.core.PropertyKey;
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.schema.TitanGraphIndex;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
+import org.janusgraph.core.EdgeLabel;
+import org.janusgraph.core.PropertyKey;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.schema.JanusGraphIndex;
+import org.janusgraph.core.schema.JanusGraphManagement;
 
-public class AuditTitan extends Auditor {
+public class AuditJanusGraph extends Auditor {
 
-	private final TitanGraph graph;
+	private final JanusGraph graph;
 	
 	/**
-	 * Instantiates a new audit titan.
+	 * Instantiates a new audit JanusGraph.
 	 *
 	 * @param g the g
 	 */
-	public AuditTitan (TitanGraph g) {
+	public AuditJanusGraph (JanusGraph g) {
 		this.graph = g;
 		buildSchema();
 	}
@@ -58,12 +58,12 @@ public class AuditTitan extends Auditor {
 	 * Populate properties.
 	 */
 	private void populateProperties() {
-		TitanManagement mgmt = graph.openManagement();
+		JanusGraphManagement mgmt = graph.openManagement();
 		Iterable<PropertyKey> iterable = mgmt.getRelationTypes(PropertyKey.class);
-		Iterator<PropertyKey> titanProperties = iterable.iterator();
+		Iterator<PropertyKey> JanusGraphProperties = iterable.iterator();
 		PropertyKey propKey;
-		while (titanProperties.hasNext()) {
-			propKey = titanProperties.next();
+		while (JanusGraphProperties.hasNext()) {
+			propKey = JanusGraphProperties.next();
 			DBProperty prop = new DBProperty();
 			
 			prop.setName(propKey.name());
@@ -78,23 +78,23 @@ public class AuditTitan extends Auditor {
 	 * Populate indexes.
 	 */
 	private void populateIndexes() {
-		TitanManagement mgmt = graph.openManagement();
-		Iterable<TitanGraphIndex> iterable = mgmt.getGraphIndexes(Vertex.class);
-		Iterator<TitanGraphIndex> titanIndexes = iterable.iterator();
-		TitanGraphIndex titanIndex;
-		while (titanIndexes.hasNext()) {
-			titanIndex = titanIndexes.next();
-			if (titanIndex.isCompositeIndex()) {
+		JanusGraphManagement mgmt = graph.openManagement();
+		Iterable<JanusGraphIndex> iterable = mgmt.getGraphIndexes(Vertex.class);
+		Iterator<JanusGraphIndex> JanusGraphIndexes = iterable.iterator();
+		JanusGraphIndex JanusGraphIndex;
+		while (JanusGraphIndexes.hasNext()) {
+			JanusGraphIndex = JanusGraphIndexes.next();
+			if (JanusGraphIndex.isCompositeIndex()) {
 				DBIndex index = new DBIndex();
 				LinkedHashSet<DBProperty> dbProperties = new LinkedHashSet<>();
-				index.setName(titanIndex.name());
-				index.setUnique(titanIndex.isUnique());
-				PropertyKey[] keys = titanIndex.getFieldKeys();
+				index.setName(JanusGraphIndex.name());
+				index.setUnique(JanusGraphIndex.isUnique());
+				PropertyKey[] keys = JanusGraphIndex.getFieldKeys();
 				for (PropertyKey key : keys) {
 					dbProperties.add(this.properties.get(key.name()));
 				}
 				index.setProperties(dbProperties);
-				index.setStatus(titanIndex.getIndexStatus(keys[0]));
+				index.setStatus(JanusGraphIndex.getIndexStatus(keys[0]));
 				this.indexes.put(index.getName(), index);
 			}
 		}	
@@ -104,12 +104,12 @@ public class AuditTitan extends Auditor {
 	 * Populate edge labels.
 	 */
 	private void populateEdgeLabels() {
-		TitanManagement mgmt = graph.openManagement();
+		JanusGraphManagement mgmt = graph.openManagement();
 		Iterable<EdgeLabel> iterable = mgmt.getRelationTypes(EdgeLabel.class);
-		Iterator<EdgeLabel> titanEdgeLabels = iterable.iterator();
+		Iterator<EdgeLabel> JanusGraphEdgeLabels = iterable.iterator();
 		EdgeLabel edgeLabel;
-		while (titanEdgeLabels.hasNext()) {
-			edgeLabel = titanEdgeLabels.next();
+		while (JanusGraphEdgeLabels.hasNext()) {
+			edgeLabel = JanusGraphEdgeLabels.next();
 			EdgeProperty edgeProperty = new EdgeProperty();
 			
 			edgeProperty.setName(edgeLabel.name());
diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/AuditOXM.java b/aai-core/src/main/java/org/onap/aai/db/schema/AuditOXM.java
index ff7eee25..167b26d0 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/AuditOXM.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/AuditOXM.java
@@ -51,9 +51,9 @@ import org.onap.aai.util.AAIConstants;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
 import com.google.common.collect.Multimap;
-import com.thinkaurelius.titan.core.Cardinality;
-import com.thinkaurelius.titan.core.Multiplicity;
-import com.thinkaurelius.titan.core.schema.SchemaStatus;
+import org.janusgraph.core.Cardinality;
+import org.janusgraph.core.Multiplicity;
+import org.janusgraph.core.schema.SchemaStatus;
 
 public class AuditOXM extends Auditor {
 
diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/AuditorFactory.java b/aai-core/src/main/java/org/onap/aai/db/schema/AuditorFactory.java
index f47807b2..67bc0398 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/AuditorFactory.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/AuditorFactory.java
@@ -20,7 +20,7 @@
 package org.onap.aai.db.schema;
 
 import org.onap.aai.introspection.Version;
-import com.thinkaurelius.titan.core.TitanGraph;
+import org.janusgraph.core.JanusGraph;
 
 public class AuditorFactory {
 
@@ -40,7 +40,7 @@ public class AuditorFactory {
 	 * @param g the g
 	 * @return the graph auditor
 	 */
-	public static Auditor getGraphAuditor (TitanGraph g) {
-		return new AuditTitan(g);
+	public static Auditor getGraphAuditor (JanusGraph g) {
+		return new AuditJanusGraph(g);
 	}
 }
diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/DBIndex.java b/aai-core/src/main/java/org/onap/aai/db/schema/DBIndex.java
index f0e3ee6d..9fd0eda0 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/DBIndex.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/DBIndex.java
@@ -22,7 +22,7 @@ package org.onap.aai.db.schema;
 import java.util.LinkedHashSet;
 import java.util.Set;
 
-import com.thinkaurelius.titan.core.schema.SchemaStatus;
+import org.janusgraph.core.schema.SchemaStatus;
 
 public class DBIndex implements Named {
 
diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/DBProperty.java b/aai-core/src/main/java/org/onap/aai/db/schema/DBProperty.java
index 29aef8e8..fd19f72d 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/DBProperty.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/DBProperty.java
@@ -20,7 +20,7 @@
 package org.onap.aai.db.schema;
 
 import org.onap.aai.introspection.Introspector;
-import com.thinkaurelius.titan.core.Cardinality;
+import org.janusgraph.core.Cardinality;
 
 public class DBProperty implements Named {
 
diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/EdgeProperty.java b/aai-core/src/main/java/org/onap/aai/db/schema/EdgeProperty.java
index f0de7656..6d10232d 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/EdgeProperty.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/EdgeProperty.java
@@ -19,7 +19,7 @@
  */
 package org.onap.aai.db.schema;
 
-import com.thinkaurelius.titan.core.Multiplicity;
+import org.janusgraph.core.Multiplicity;
 import org.codehaus.jackson.annotate.JsonProperty;
 import org.codehaus.jackson.annotate.JsonPropertyOrder;
 
diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/ManageTitanSchema.java b/aai-core/src/main/java/org/onap/aai/db/schema/ManageJanusGraphSchema.java
index c696d88d..bf2d4107 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/ManageTitanSchema.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/ManageJanusGraphSchema.java
@@ -28,19 +28,19 @@ import com.att.eelf.configuration.EELFManager;
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 
 import org.onap.aai.introspection.Version;
-import com.thinkaurelius.titan.core.PropertyKey;
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.schema.SchemaStatus;
-import com.thinkaurelius.titan.core.schema.TitanGraphIndex;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
-import com.thinkaurelius.titan.core.schema.TitanManagement.IndexBuilder;
+import org.janusgraph.core.PropertyKey;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.schema.SchemaStatus;
+import org.janusgraph.core.schema.JanusGraphIndex;
+import org.janusgraph.core.schema.JanusGraphManagement;
+import org.janusgraph.core.schema.JanusGraphManagement.IndexBuilder;
 
-public class ManageTitanSchema {
+public class ManageJanusGraphSchema {
 
-	private static final EELFLogger logger = EELFManager.getInstance().getLogger(AuditOXM.class);
+	private static final EELFLogger logger = EELFManager.getInstance().getLogger(ManageJanusGraphSchema.class);
 
-	private TitanManagement graphMgmt;
-	private TitanGraph graph;
+	private JanusGraphManagement graphMgmt;
+	private JanusGraph graph;
 	private List<DBProperty> aaiProperties;
 	private List<DBIndex> aaiIndexes;
 	private List<EdgeProperty> aaiEdgeProperties;
@@ -48,11 +48,11 @@ public class ManageTitanSchema {
 	private Auditor graphInfo = null;
 	
 	/**
-	 * Instantiates a new manage titan schema.
+	 * Instantiates a new manage JanusGraph schema.
 	 *
 	 * @param graph the graph
 	 */
-	public ManageTitanSchema(final TitanGraph graph) {
+	public ManageJanusGraphSchema(final JanusGraph graph) {
 		this.graph = graph;
 		oxmInfo = AuditorFactory.getOXMAuditor(Version.v8);
 		graphInfo = AuditorFactory.getGraphAuditor(graph);
@@ -126,8 +126,8 @@ public class ManageTitanSchema {
 				keyList.add(graphMgmt.getPropertyKey(prop.getName()));
 			}
 			if (graphMgmt.containsGraphIndex(index.getName())) {
-				TitanGraphIndex titanIndex = graphMgmt.getGraphIndex(index.getName());
-				PropertyKey[] dbKeys = titanIndex.getFieldKeys();
+				JanusGraphIndex JanusGraphIndex = graphMgmt.getGraphIndex(index.getName());
+				PropertyKey[] dbKeys = JanusGraphIndex.getFieldKeys();
 				if (dbKeys.length != keyList.size()) {
 					isChanged = true;
 				} else {
@@ -178,7 +178,7 @@ public class ManageTitanSchema {
 	 * @param mgmt the mgmt
 	 * @param prop the prop
 	 */
-	private void createProperty(TitanManagement mgmt, DBProperty prop) {
+	private void createProperty(JanusGraphManagement mgmt, DBProperty prop) {
 		if (mgmt.containsPropertyKey(prop.getName())) {
 			PropertyKey key = mgmt.getPropertyKey(prop.getName());
 			boolean isChanged = false;
@@ -209,11 +209,11 @@ public class ManageTitanSchema {
 	 * @param isNew the is new
 	 * @param isChanged the is changed
 	 */
-	private void createIndex(TitanManagement mgmt, String indexName, List<PropertyKey> keys, boolean isUnique, boolean isNew, boolean isChanged) {
+	private void createIndex(JanusGraphManagement mgmt, String indexName, List<PropertyKey> keys, boolean isUnique, boolean isNew, boolean isChanged) {
 		
 		/*if (isChanged) {
 			System.out.println("Changing index: " + indexName);
-			TitanGraphIndex oldIndex = mgmt.getGraphIndex(indexName);
+			JanusGraphIndex oldIndex = mgmt.getGraphIndex(indexName);
 			mgmt.updateIndex(oldIndex, SchemaAction.DISABLE_INDEX);
 			mgmt.commit();
 			//cannot remove indexes
@@ -241,7 +241,7 @@ public class ManageTitanSchema {
 			
 			try {
 				//waitForCompletion(indexName);
-				//TitanIndexRepair.hbaseRepair(AAIConstants.AAI_CONFIG_FILENAME, indexName, "");
+				//JanusGraphIndexRepair.hbaseRepair(AAIConstants.AAI_CONFIG_FILENAME, indexName, "");
 			} catch (Exception e) {
 				graph.tx().rollback();
 				graph.close();
@@ -270,8 +270,8 @@ public class ManageTitanSchema {
 		long before = System.currentTimeMillis();
 		while (!registered) {
 		    Thread.sleep(500L);
-		    TitanManagement mgmt = graph.openManagement();
-		    TitanGraphIndex idx  = mgmt.getGraphIndex(name);
+		    JanusGraphManagement mgmt = graph.openManagement();
+		    JanusGraphIndex idx  = mgmt.getGraphIndex(name);
 		    registered = true;
 		    for (PropertyKey k : idx.getFieldKeys()) {
 		        SchemaStatus s = idx.getIndexStatus(k);  
@@ -301,7 +301,7 @@ public class ManageTitanSchema {
 	 */
 	public void updateIndex(DBIndex index) {
 
-		TitanManagement mgmt = graph.openManagement();
+		JanusGraphManagement mgmt = graph.openManagement();
 		List<PropertyKey> keys = new ArrayList<>();
 		boolean isNew = false;
 		boolean isChanged = false;
diff --git a/aai-core/src/main/java/org/onap/aai/db/schema/ScriptDriver.java b/aai-core/src/main/java/org/onap/aai/db/schema/ScriptDriver.java
index 7385ea5f..d6e32d2d 100644
--- a/aai-core/src/main/java/org/onap/aai/db/schema/ScriptDriver.java
+++ b/aai-core/src/main/java/org/onap/aai/db/schema/ScriptDriver.java
@@ -34,8 +34,8 @@ import org.onap.aai.logging.LoggingContext.StatusCode;
 import org.onap.aai.util.AAIConfig;
 import com.beust.jcommander.JCommander;
 import com.beust.jcommander.Parameter;
-import com.thinkaurelius.titan.core.TitanFactory;
-import com.thinkaurelius.titan.core.TitanGraph;
+import org.janusgraph.core.JanusGraphFactory;
+import org.janusgraph.core.JanusGraph;
 
 public class ScriptDriver {
 
@@ -69,7 +69,7 @@ public class ScriptDriver {
 		}
 		String config = cArgs.config;
 		AAIConfig.init();
-		try (TitanGraph graph = TitanFactory.open(new AAIGraphConfig.Builder(config).forService(ScriptDriver.class.getSimpleName()).withGraphType("NA").buildConfiguration())) {
+		try (JanusGraph graph = JanusGraphFactory.open(new AAIGraphConfig.Builder(config).forService(ScriptDriver.class.getSimpleName()).withGraphType("NA").buildConfiguration())) {
 			if (!("oxm".equals(cArgs.type) || "graph".equals(cArgs.type))) {
 				System.out.println("type: " + cArgs.type + " not recognized.");
 				System.exit(1);
diff --git a/aai-core/src/main/java/org/onap/aai/dbgen/DataGrooming.java b/aai-core/src/main/java/org/onap/aai/dbgen/DataGrooming.java
index f201a57e..c5de1d61 100644
--- a/aai-core/src/main/java/org/onap/aai/dbgen/DataGrooming.java
+++ b/aai-core/src/main/java/org/onap/aai/dbgen/DataGrooming.java
@@ -66,8 +66,8 @@ import org.onap.aai.logging.LoggingContext.StatusCode;
 import com.att.eelf.configuration.Configuration;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-import com.thinkaurelius.titan.core.TitanFactory;
-import com.thinkaurelius.titan.core.TitanGraph;
+import org.janusgraph.core.JanusGraphFactory;
+import org.janusgraph.core.JanusGraph;
 
 
 public class DataGrooming {
@@ -379,8 +379,8 @@ public class DataGrooming {
 		int cleanupCandidateCount = 0;
 		long windowStartTime = 0; // Translation of the window into a starting timestamp 
 		BufferedWriter bw = null;
-		TitanGraph graph = null;
-		TitanGraph graph2 = null;
+		JanusGraph graph = null;
+		JanusGraph graph2 = null;
 		int deleteCount = 0;
 		boolean executeFinalCommit = false;
 		Set<String> deleteCandidateList = new LinkedHashSet<>();
@@ -440,10 +440,10 @@ public class DataGrooming {
 			if( cacheDbOkFlag ){
 				// Since we're just reading (not deleting/fixing anything), we can use 
 				// a cached connection to the DB
-				graph = TitanFactory.open(new AAIGraphConfig.Builder(AAIConstants.CACHED_DB_CONFIG).forService(DataGrooming.class.getSimpleName()).withGraphType("cached").buildConfiguration());
+				graph = JanusGraphFactory.open(new AAIGraphConfig.Builder(AAIConstants.CACHED_DB_CONFIG).forService(DataGrooming.class.getSimpleName()).withGraphType("cached").buildConfiguration());
 			}
 			else {
-				graph = TitanFactory.open(new AAIGraphConfig.Builder(AAIConstants.REALTIME_DB_CONFIG).forService(DataGrooming.class.getSimpleName()).withGraphType("realtime1").buildConfiguration());
+				graph = JanusGraphFactory.open(new AAIGraphConfig.Builder(AAIConstants.REALTIME_DB_CONFIG).forService(DataGrooming.class.getSimpleName()).withGraphType("realtime1").buildConfiguration());
 			}
 			if (graph == null) {
 				String emsg = "null graph object in DataGrooming\n";
@@ -771,7 +771,7 @@ public class DataGrooming {
 			logger.debug("    ---- DEBUG --- about to open a SECOND graph (takes a little while)--------\n");
 			// Note - graph2 just reads - but we want it to use a fresh connection to 
 			//      the database, so we are NOT using the CACHED DB CONFIG here.
-			graph2 = TitanFactory.open(new AAIGraphConfig.Builder(AAIConstants.REALTIME_DB_CONFIG).forService(DataGrooming.class.getSimpleName()).withGraphType("realtime2").buildConfiguration());
+			graph2 = JanusGraphFactory.open(new AAIGraphConfig.Builder(AAIConstants.REALTIME_DB_CONFIG).forService(DataGrooming.class.getSimpleName()).withGraphType("realtime2").buildConfiguration());
 			if (graph2 == null) {
 				String emsg = "null graph2 object in DataGrooming\n";
 				throw new AAIException("AAI_6101", emsg);
@@ -1425,7 +1425,7 @@ public class DataGrooming {
 					}
 					g.tx().rollback();
 				} catch (Exception ex) {
-					// Don't throw anything because Titan sometimes is just saying that the graph is already closed
+					// Don't throw anything because JanusGraph sometimes is just saying that the graph is already closed
 					LoggingContext.statusCode(StatusCode.ERROR);
 					LoggingContext.responseCode(LoggingContext.AVAILABILITY_TIMEOUT_ERROR);
 					logger.warn("WARNING from final graphTransaction.rollback()", ex);
@@ -1438,7 +1438,7 @@ public class DataGrooming {
 				try {
 					g2.tx().rollback();
 				} catch (Exception ex) {
-					// Don't throw anything because Titan sometimes is just saying that the graph is already closed
+					// Don't throw anything because JanusGraph sometimes is just saying that the graph is already closed
 					LoggingContext.statusCode(StatusCode.ERROR);
 					LoggingContext.responseCode(LoggingContext.AVAILABILITY_TIMEOUT_ERROR);
 					logger.warn("WARNING from final graphTransaction2.rollback()", ex);
@@ -1452,7 +1452,7 @@ public class DataGrooming {
 						graph.close();
 					}
 				} catch (Exception ex) {
-					// Don't throw anything because Titan sometimes is just saying that the graph is already closed{
+					// Don't throw anything because JanusGraph sometimes is just saying that the graph is already closed{
 					LoggingContext.statusCode(StatusCode.ERROR);
 					LoggingContext.responseCode(LoggingContext.AVAILABILITY_TIMEOUT_ERROR);
 					logger.warn("WARNING from final graph.shutdown()", ex);
@@ -1464,7 +1464,7 @@ public class DataGrooming {
 						graph2.close();
 					}
 				} catch (Exception ex) {
-					// Don't throw anything because Titan sometimes is just saying that the graph is already closed{
+					// Don't throw anything because JanusGraph sometimes is just saying that the graph is already closed{
 					LoggingContext.statusCode(StatusCode.ERROR);
 					LoggingContext.responseCode(LoggingContext.AVAILABILITY_TIMEOUT_ERROR);
 					logger.warn("WARNING from final graph2.shutdown()", ex);
@@ -2085,7 +2085,7 @@ public class DataGrooming {
 			String transId, String fromAppId, GraphTraversalSource g, String version,
 			String nType, ArrayList<Vertex> passedVertList, Loader loader)
 			throws AAIException {
-		// Given a list of Titan Vertices of one nodeType (see AAI-8956), group 
+		// Given a list of JanusGraph Vertices of one nodeType (see AAI-8956), group 
 		// them together by the parent node they depend on.
 		// Ie. if given a list of ip address nodes (assumed to all have the
 		// same key info) they might sit under several different parent vertices.
diff --git a/aai-core/src/main/java/org/onap/aai/dbgen/GenTester.java b/aai-core/src/main/java/org/onap/aai/dbgen/GenTester.java
index 174b157e..9a726ec5 100644
--- a/aai-core/src/main/java/org/onap/aai/dbgen/GenTester.java
+++ b/aai-core/src/main/java/org/onap/aai/dbgen/GenTester.java
@@ -22,8 +22,8 @@ package org.onap.aai.dbgen;
 import com.att.eelf.configuration.Configuration;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.schema.JanusGraphManagement;
 import org.onap.aai.dbmap.AAIGraph;
 import org.onap.aai.logging.ErrorLogHelper;
 import org.onap.aai.logging.LoggingContext;
@@ -46,7 +46,7 @@ public class GenTester {
 	 */
 	public static void main(String[] args) {
 	   
-		TitanGraph graph = null;
+		JanusGraph graph = null;
 		System.setProperty("aai.service.name", GenTester.class.getSimpleName());
 		// Set the logging file properties to be used by EELFManager
 		Properties props = System.getProperties();
@@ -81,11 +81,11 @@ public class GenTester {
 					graph = AAIGraph.getInstance().getGraph();
 			    	
 			       if( graph == null ){
-					   ErrorLogHelper.logError("AAI_5102", "Error creating Titan graph.");
+					   ErrorLogHelper.logError("AAI_5102", "Error creating JanusGraph graph.");
 			           return;
 			       }
 			       else {
-			    	   String amsg = "Successfully loaded a Titan graph without doing any schema work.  ";
+			    	   String amsg = "Successfully loaded a JanusGraph graph without doing any schema work.  ";
 			    	   System.out.println(amsg);
 			    	   LOGGER.auditEvent(amsg);
 			           return;
@@ -118,17 +118,17 @@ public class GenTester {
 			graph = AAIGraph.getInstance().getGraph();
 	    	
 			if( graph == null ){
-				ErrorLogHelper.logError("AAI_5102", "Error creating Titan graph. ");
+				ErrorLogHelper.logError("AAI_5102", "Error creating JanusGraph graph. ");
 				return;
 			}
 
 			// Load the propertyKeys, indexes and edge-Labels into the DB
-			TitanManagement graphMgt = graph.openManagement();
+			JanusGraphManagement graphMgt = graph.openManagement();
 
-	       	imsg = "-- Loading new schema elements into Titan --";
+	       	imsg = "-- Loading new schema elements into JanusGraph --";
        		System.out.println(imsg);
        		LOGGER.info(imsg);
-       		SchemaGenerator.loadSchemaIntoTitan( graph, graphMgt, addDefaultCR );
+       		SchemaGenerator.loadSchemaIntoJanusGraph( graph, graphMgt, addDefaultCR );
 
 	    } catch(Exception ex) {
 	    	ErrorLogHelper.logError("AAI_4000", ex.getMessage());
diff --git a/aai-core/src/main/java/org/onap/aai/dbgen/SchemaGenerator.java b/aai-core/src/main/java/org/onap/aai/dbgen/SchemaGenerator.java
index c8b3df50..6336edd3 100644
--- a/aai-core/src/main/java/org/onap/aai/dbgen/SchemaGenerator.java
+++ b/aai-core/src/main/java/org/onap/aai/dbgen/SchemaGenerator.java
@@ -41,11 +41,11 @@ import org.onap.aai.util.AAIConfig;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
 import com.google.common.collect.Multimap;
-import com.thinkaurelius.titan.core.Cardinality;
-import com.thinkaurelius.titan.core.Multiplicity;
-import com.thinkaurelius.titan.core.PropertyKey;
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
+import org.janusgraph.core.Cardinality;
+import org.janusgraph.core.Multiplicity;
+import org.janusgraph.core.PropertyKey;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.schema.JanusGraphManagement;
 
 
 
@@ -56,24 +56,24 @@ public class SchemaGenerator{
 	
 	
 	 /**
- 	 * Load schema into titan.
+ 	 * Load schema into JanusGraph.
  	 *
  	 * @param graph the graph
  	 * @param graphMgmt the graph mgmt
  	 * @param addDefaultCloudRegion the add default cloud region
  	 */
- 	public static void loadSchemaIntoTitan(final TitanGraph graph, final TitanManagement graphMgmt, boolean addDefaultCloudRegion) {
+ 	public static void loadSchemaIntoJanusGraph(final JanusGraph graph, final JanusGraphManagement graphMgmt, boolean addDefaultCloudRegion) {
 		 addDefaultCR = addDefaultCloudRegion;
-		 loadSchemaIntoTitan(graph, graphMgmt);
+		 loadSchemaIntoJanusGraph(graph, graphMgmt);
 	 }
 	
     /**
-     * Load schema into titan.
+     * Load schema into JanusGraph.
      *
      * @param graph the graph
      * @param graphMgmt the graph mgmt
      */
-    public static void loadSchemaIntoTitan(final TitanGraph graph, final TitanManagement graphMgmt) {
+    public static void loadSchemaIntoJanusGraph(final JanusGraph graph, final JanusGraphManagement graphMgmt) {
 
     	try {
     		AAIConfig.init();
@@ -84,8 +84,8 @@ public class SchemaGenerator{
 			System.exit(1);
 		}
     	
-        // NOTE - Titan 0.5.3 doesn't keep a list of legal node Labels.  
-    	//   They are only used when a vertex is actually being created.  Titan 1.1 will keep track (we think).
+        // NOTE - JanusGraph 0.5.3 doesn't keep a list of legal node Labels.  
+    	//   They are only used when a vertex is actually being created.  JanusGraph 1.1 will keep track (we think).
         	
 
 		// Use EdgeRules to make sure edgeLabels are defined in the db.  NOTE: the multiplicty used here is 
@@ -186,7 +186,7 @@ public class SchemaGenerator{
     	LOGGER.info(imsg);
     	
         graphMgmt.commit();
-    }// End of loadSchemaIntoTitan()
+    }// End of loadSchemaIntoJanusGraph()
 
 }
 
diff --git a/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraph.java b/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraph.java
index 46fc2c6e..0a287516 100644
--- a/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraph.java
+++ b/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraph.java
@@ -37,15 +37,15 @@ import org.onap.aai.util.AAIConstants;
 
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-import com.thinkaurelius.titan.core.TitanFactory;
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
+import org.janusgraph.core.JanusGraphFactory;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.schema.JanusGraphManagement;
 
 /**
  * Database Mapping class which acts as the middle man between the REST
- * interface objects and Titan DB objects. This class provides methods to commit
- * the objects received on the REST interface into the Titan graph database as
- * vertices and edges. Transactions are also managed here by using a TitanGraph
+ * interface objects and JanusGraph DB objects. This class provides methods to commit
+ * the objects received on the REST interface into the JanusGraph graph database as
+ * vertices and edges. Transactions are also managed here by using a JanusGraph
  * object to load, commit/rollback and shutdown for each request. The data model
  * rules such as keys/required properties are handled by calling DBMeth methods
  * which are driven by a specification file in json.
@@ -56,7 +56,7 @@ public class AAIGraph {
 
 	private static final EELFLogger logger = EELFManager.getInstance().getLogger(AAIGraph.class);
 	protected static final String COMPONENT = "aaidbmap";
-	protected Map<String, TitanGraph> graphs = new HashMap<>();
+	protected Map<String, JanusGraph> graphs = new HashMap<>();
 	private static final String REALTIME_DB = "realtime";
 	private static final String CACHED_DB = "cached";
 	private static boolean isInit = false;
@@ -103,11 +103,11 @@ public class AAIGraph {
 	}
 	
 	private void loadGraph(String name, String configPath, String serviceName) throws Exception {
-	    // Graph being opened by TitanFactory is being placed in hashmap to be used later
+	    // Graph being opened by JanusGraphFactory is being placed in hashmap to be used later
 		// These graphs shouldn't be closed until the application shutdown
 		try {
 			PropertiesConfiguration propertiesConfiguration = new AAIGraphConfig.Builder(configPath).forService(serviceName).withGraphType(name).buildConfiguration();
-			TitanGraph graph = TitanFactory.open(propertiesConfiguration);
+			JanusGraph graph = JanusGraphFactory.open(propertiesConfiguration);
 
 			Properties graphProps = new Properties();
 			propertiesConfiguration.getKeys().forEachRemaining(k -> graphProps.setProperty(k, propertiesConfiguration.getString(k)));
@@ -130,7 +130,7 @@ public class AAIGraph {
 	    }
 	}
 
-	private void loadSnapShotToInMemoryGraph(TitanGraph graph, Properties graphProps) {
+	private void loadSnapShotToInMemoryGraph(JanusGraph graph, Properties graphProps) {
 		if (logger.isDebugEnabled()) {
 			logger.debug("Load Snapshot to InMemory Graph");
 		}
@@ -153,19 +153,19 @@ public class AAIGraph {
 		}
 	}
 
-	private void loadSchema(TitanGraph graph) {
+	private void loadSchema(JanusGraph graph) {
 		// Load the propertyKeys, indexes and edge-Labels into the DB
-		TitanManagement graphMgt = graph.openManagement();
+		JanusGraphManagement graphMgt = graph.openManagement();
 		
-		System.out.println("-- loading schema into Titan");
-		SchemaGenerator.loadSchemaIntoTitan( graph, graphMgt );
+		System.out.println("-- loading schema into JanusGraph");
+		SchemaGenerator.loadSchemaIntoJanusGraph( graph, graphMgt );
 	}
 
 	/**
 	 * Close all of the graph connections made in the instance.
 	 */
 	public void graphShutdown() {
-		graphs.values().stream().filter(TitanGraph::isOpen).forEach(TitanGraph::close);
+		graphs.values().stream().filter(JanusGraph::isOpen).forEach(JanusGraph::close);
 	}
 
 	/**
@@ -173,7 +173,7 @@ public class AAIGraph {
 	 *
 	 * @return the graph
 	 */
-	public TitanGraph getGraph() {
+	public JanusGraph getGraph() {
 		return graphs.get(REALTIME_DB);
 	}
 	
@@ -182,7 +182,7 @@ public class AAIGraph {
 		graphs.get(this.getGraphName(connectionType)).close();
 	}
 	
-	public TitanGraph getGraph(DBConnectionType connectionType) {
+	public JanusGraph getGraph(DBConnectionType connectionType) {
 		return graphs.get(this.getGraphName(connectionType));
 	}
 	
diff --git a/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraphConfig.java b/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraphConfig.java
index 59a1453d..eff7f0ec 100644
--- a/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraphConfig.java
+++ b/aai-core/src/main/java/org/onap/aai/dbmap/AAIGraphConfig.java
@@ -24,8 +24,8 @@ import com.att.eelf.configuration.EELFManager;
 import com.google.common.base.Preconditions;
 import com.google.common.base.Predicate;
 import com.google.common.collect.Iterators;
-import com.thinkaurelius.titan.diskstorage.configuration.ConfigElement;
-import com.thinkaurelius.titan.diskstorage.configuration.backend.CommonsConfiguration;
+import org.janusgraph.diskstorage.configuration.ConfigElement;
+import org.janusgraph.diskstorage.configuration.backend.CommonsConfiguration;
 import org.apache.commons.configuration.ConfigurationException;
 import org.apache.commons.configuration.PropertiesConfiguration;
 import org.apache.commons.lang.StringUtils;
@@ -37,10 +37,10 @@ import java.util.Iterator;
 import java.util.Objects;
 import java.util.regex.Pattern;
 
-import static com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.*;
+import static org.janusgraph.graphdb.configuration.GraphDatabaseConfiguration.*;
 
 /**
- * For building a config that TitanFactory.open can use with an identifiable graph.unique-instance-id
+ * For building a config that JanusGraphFactory.open can use with an identifiable graph.unique-instance-id
  */
 public class AAIGraphConfig {
 
@@ -50,7 +50,7 @@ public class AAIGraphConfig {
 
 	public PropertiesConfiguration getCc(String configPath, String graphType, String service) throws ConfigurationException, FileNotFoundException {
 
-		PropertiesConfiguration cc = this.loadTitanPropFile(configPath);
+		PropertiesConfiguration cc = this.loadJanusGraphPropFile(configPath);
 
 		String uid = ManagementFactory.getRuntimeMXBean().getName() + "_" + service  + "_" + graphType + "_" + System.currentTimeMillis();
 		for (char c : ConfigElement.ILLEGAL_CHARS) {
@@ -63,7 +63,7 @@ public class AAIGraphConfig {
 	}
 
 
-	private PropertiesConfiguration loadTitanPropFile(String shortcutOrFile) throws ConfigurationException, FileNotFoundException {
+	private PropertiesConfiguration loadJanusGraphPropFile(String shortcutOrFile) throws ConfigurationException, FileNotFoundException {
 		File file = new File(shortcutOrFile);
 		if (file.exists()) {
 			PropertiesConfiguration propertiesConfiguration = new PropertiesConfiguration();
diff --git a/aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java b/aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java
index e5d4c2e0..45d0bbe4 100644
--- a/aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java
+++ b/aai-core/src/main/java/org/onap/aai/dbmap/InMemoryGraph.java
@@ -30,10 +30,10 @@ import org.apache.tinkerpop.gremlin.structure.io.IoCore;
 import org.onap.aai.dbgen.SchemaGenerator;
 import org.onap.aai.logging.LogFormatTools;
 
-import com.thinkaurelius.titan.core.TitanFactory;
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.TitanTransaction;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
+import org.janusgraph.core.JanusGraphFactory;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.JanusGraphTransaction;
+import org.janusgraph.core.schema.JanusGraphManagement;
 
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
@@ -41,7 +41,7 @@ import com.att.eelf.configuration.EELFManager;
 public class InMemoryGraph {
 
 	private static final EELFLogger LOGGER = EELFManager.getInstance().getLogger(InMemoryGraph.class);
-	private TitanGraph graph = null;
+	private JanusGraph graph = null;
 
 
 	public InMemoryGraph(Builder builder) throws IOException  {
@@ -50,16 +50,16 @@ public class InMemoryGraph {
 		 */
 		InputStream is = new FileInputStream(builder.propertyFile);
 		try {
-			graph = TitanFactory.open(builder.propertyFile);
+			graph = JanusGraphFactory.open(builder.propertyFile);
 			
 			Properties graphProps = new Properties();
 			graphProps.load(is);
-			TitanManagement graphMgt = graph.openManagement();
+			JanusGraphManagement graphMgt = graph.openManagement();
             if(builder.isSchemaEnabled){
             	LOGGER.info("Schema Enabled");
-            	SchemaGenerator.loadSchemaIntoTitan(graph, graphMgt);
+            	SchemaGenerator.loadSchemaIntoJanusGraph(graph, graphMgt);
             }
-			TitanTransaction transaction = graph.newTransaction();
+			JanusGraphTransaction transaction = graph.newTransaction();
 			LOGGER.info("Loading snapshot");
 			transaction.io(IoCore.graphson()).readGraph(builder.graphsonLocation);
 			transaction.commit();
@@ -97,7 +97,7 @@ public class InMemoryGraph {
 		}
 	}
 
-	public TitanGraph getGraph() {
+	public JanusGraph getGraph() {
 		return graph;
 	}
 
diff --git a/aai-core/src/main/java/org/onap/aai/extensions/AAIExtensionMap.java b/aai-core/src/main/java/org/onap/aai/extensions/AAIExtensionMap.java
index eff781c3..7b125496 100644
--- a/aai-core/src/main/java/org/onap/aai/extensions/AAIExtensionMap.java
+++ b/aai-core/src/main/java/org/onap/aai/extensions/AAIExtensionMap.java
@@ -67,7 +67,7 @@ public class AAIExtensionMap {
 	// -----------------------------------------------------------------------
 	// postExtSkipErrorCallback | java.lang.Boolean (RW)
 	// -----------------------------------------------------------------------
-	// graph | com.thinkaurelius.titan.core.TitanGraph (RW)
+	// graph | org.janusgraph.core.JanusGraph (RW)
 	// -----------------------------------------------------------------------
 	// objectFromResponse | Object
 	// -----------------------------------------------------------------------
diff --git a/aai-core/src/main/java/org/onap/aai/rest/db/HttpEntry.java b/aai-core/src/main/java/org/onap/aai/rest/db/HttpEntry.java
index 67b46bfb..28af6a55 100644
--- a/aai-core/src/main/java/org/onap/aai/rest/db/HttpEntry.java
+++ b/aai-core/src/main/java/org/onap/aai/rest/db/HttpEntry.java
@@ -68,7 +68,7 @@ import org.onap.aai.restcore.HttpMethod;
 import org.onap.aai.schema.enums.ObjectMetadata;
 import org.onap.aai.serialization.db.DBSerializer;
 import org.onap.aai.serialization.engines.QueryStyle;
-import org.onap.aai.serialization.engines.TitanDBEngine;
+import org.onap.aai.serialization.engines.JanusGraphDBEngine;
 import org.onap.aai.serialization.engines.TransactionalGraphEngine;
 import org.onap.aai.serialization.engines.query.QueryEngine;
 
@@ -78,7 +78,10 @@ import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.github.fge.jsonpatch.JsonPatchException;
 import com.github.fge.jsonpatch.mergepatch.JsonMergePatch;
-import com.thinkaurelius.titan.core.TitanException;
+import org.janusgraph.core.JanusGraphException;
+import org.onap.aai.serialization.queryformats.Format;
+import org.onap.aai.serialization.queryformats.FormatFactory;
+import org.onap.aai.serialization.queryformats.Formatter;
 
 /**
  * The Class HttpEntry.
@@ -113,7 +116,7 @@ public class HttpEntry {
 		this.queryStyle = queryStyle;
 		this.version = version;
 		this.loader = LoaderFactory.createLoaderForVersion(introspectorFactoryType, version);
-		this.dbEngine = new TitanDBEngine(
+		this.dbEngine = new JanusGraphDBEngine(
 				queryStyle,
 				connectionType,
 				loader);
@@ -281,7 +284,7 @@ public class HttpEntry {
 									status = Status.OK;
 									MarshallerProperties properties;
 									if (!request.getMarshallerProperties().isPresent()) {
-										properties = 
+										properties =
 												new MarshallerProperties.Builder(org.onap.aai.restcore.MediaType.getEnum(outputMediaType)).build();
 									} else {
 										properties = request.getMarshallerProperties().get();
@@ -450,7 +453,7 @@ public class HttpEntry {
 						responses.add(pairedResp);
 						//break out of retry loop
 						break;
-					} catch (TitanException e) {
+					} catch (JanusGraphException e) {
 						this.dbEngine.rollback();
 
 						LOGGER.info ("Caught exception: " + e.getMessage());
@@ -586,9 +589,9 @@ public class HttpEntry {
                 depth = AAIProperties.MAXIMUM_DEPTH;
 			}
 		} else {
-			if (depthParam.length() > 0 && !depthParam.equals("all")){
+			if (!depthParam.isEmpty() && !"all".equals(depthParam)){
 				try {
-					depth = Integer.valueOf(depthParam);
+					depth = Integer.parseInt(depthParam);
 				} catch (Exception e) {
 					throw new AAIException("AAI_4016");
 				}
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/db/DBSerializer.java b/aai-core/src/main/java/org/onap/aai/serialization/db/DBSerializer.java
index 9b57e48e..67a5edb3 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/db/DBSerializer.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/db/DBSerializer.java
@@ -23,7 +23,7 @@ package org.onap.aai.serialization.db;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
 import com.google.common.base.CaseFormat;
-import com.thinkaurelius.titan.core.SchemaViolationException;
+import org.janusgraph.core.SchemaViolationException;
 import org.apache.commons.collections.IteratorUtils;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal;
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/db/GraphSingleton.java b/aai-core/src/main/java/org/onap/aai/serialization/db/GraphSingleton.java
index c90e1eee..d70a7ee7 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/db/GraphSingleton.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/db/GraphSingleton.java
@@ -19,7 +19,7 @@
  */
 package org.onap.aai.serialization.db;
 
-import com.thinkaurelius.titan.core.TitanGraph;
+import org.janusgraph.core.JanusGraph;
 import org.onap.aai.dbmap.AAIGraph;
 import org.onap.aai.dbmap.DBConnectionType;
 
@@ -58,11 +58,11 @@ public class GraphSingleton {
 	 *
 	 * @return the tx graph
 	 */
-	public TitanGraph getTxGraph() {
+	public JanusGraph getTxGraph() {
 		return AAIGraph.getInstance().getGraph();
 	}
 	
-	public TitanGraph getTxGraph(DBConnectionType connectionType) {
+	public JanusGraph getTxGraph(DBConnectionType connectionType) {
 		return AAIGraph.getInstance().getGraph(connectionType);
 	}
 }
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/db/InMemoryGraphSingleton.java b/aai-core/src/main/java/org/onap/aai/serialization/db/InMemoryGraphSingleton.java
index 369161ac..0f4c3e7d 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/db/InMemoryGraphSingleton.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/db/InMemoryGraphSingleton.java
@@ -21,22 +21,22 @@ package org.onap.aai.serialization.db;
 
 import org.onap.aai.dbmap.DBConnectionType;
 
-import com.thinkaurelius.titan.core.TitanGraph;
+import org.janusgraph.core.JanusGraph;
 
 public class InMemoryGraphSingleton extends GraphSingleton {
 
-	private static TitanGraph inMemgraph;
+	private static JanusGraph inMemgraph;
 
 	private static class Helper {
 		private static final InMemoryGraphSingleton INSTANCE = new InMemoryGraphSingleton();
 	}
 
 	/**
-	 * Gets the single instance of TitanGraphSingleton.
+	 * Gets the single instance of JanusGraphSingleton.
 	 *
-	 * @return single instance of TitanGraphSingleton
+	 * @return single instance of JanusGraphSingleton
 	 */
-	public static InMemoryGraphSingleton getInstance(TitanGraph graph) {
+	public static InMemoryGraphSingleton getInstance(JanusGraph graph) {
 		inMemgraph = graph;
 		return Helper.INSTANCE;
 	}
@@ -47,12 +47,12 @@ public class InMemoryGraphSingleton extends GraphSingleton {
 	 * @return the tx graph
 	 */
 	@Override
-	public TitanGraph getTxGraph() {
+	public JanusGraph getTxGraph() {
 		return inMemgraph;
 	}
 
 	@Override
-	public TitanGraph getTxGraph(DBConnectionType connectionType) {
+	public JanusGraph getTxGraph(DBConnectionType connectionType) {
 		return inMemgraph;
 	}
 }
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/db/TitanGraphSingleton.java b/aai-core/src/main/java/org/onap/aai/serialization/db/JanusGraphSingleton.java
index 4c1f3181..4513d107 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/db/TitanGraphSingleton.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/db/JanusGraphSingleton.java
@@ -20,18 +20,18 @@
 package org.onap.aai.serialization.db;
 
 /* This is class is just a wrapper of its parent */
-public class TitanGraphSingleton extends GraphSingleton {
+public class JanusGraphSingleton extends GraphSingleton {
 
 	private static class Helper {
-		private static final TitanGraphSingleton INSTANCE = new TitanGraphSingleton();
+		private static final JanusGraphSingleton INSTANCE = new JanusGraphSingleton();
 	}
 	
 	/**
-	 * Gets the single instance of TitanGraphSingleton.
+	 * Gets the single instance of JanusGraphSingleton.
 	 *
-	 * @return single instance of TitanGraphSingleton
+	 * @return single instance of JanusGraphSingleton
 	 */
-	public static TitanGraphSingleton getInstance() {
+	public static JanusGraphSingleton getInstance() {
 		return Helper.INSTANCE;
 	}
 }
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/engines/InMemoryDBEngine.java b/aai-core/src/main/java/org/onap/aai/serialization/engines/InMemoryDBEngine.java
index a7aef9da..ec52a002 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/engines/InMemoryDBEngine.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/engines/InMemoryDBEngine.java
@@ -22,6 +22,7 @@ package org.onap.aai.serialization.engines;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
+
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
 import org.apache.tinkerpop.gremlin.process.traversal.strategy.verification.ReadOnlyStrategy;
 import org.apache.tinkerpop.gremlin.structure.Graph;
@@ -39,29 +40,29 @@ import org.onap.aai.serialization.engines.query.GraphTraversalQueryEngine;
 import org.onap.aai.serialization.engines.query.QueryEngine;
 import org.onap.aai.serialization.engines.TransactionalGraphEngine;
 
-import com.thinkaurelius.titan.core.TitanGraph;
+import org.janusgraph.core.JanusGraph;
 
 public class InMemoryDBEngine extends TransactionalGraphEngine {
 
 	/**
-	 * Instantiates a new titan DB engine.
+	 * Instantiates a new JanusGraph DB engine.
 	 *
 	 * @param style
 	 *            the style
 	 * @param loader
 	 *            the loader
 	 */
-	private TitanGraph graph = null;
+	private JanusGraph graph = null;
 
 	private static final TransactionalGraphEngine.Admin admin = null;
 
-	public InMemoryDBEngine(QueryStyle style, DBConnectionType connectionType, Loader loader, TitanGraph graph) {
+	public InMemoryDBEngine(QueryStyle style, DBConnectionType connectionType, Loader loader, JanusGraph graph) {
 		super(style, loader, connectionType, InMemoryGraphSingleton.getInstance(graph));
 		this.graph = graph;
 	}
 
 	/**
-	 * Instantiates a new titan DB engine.
+	 * Instantiates a new JanusGraph DB engine.
 	 *
 	 * @param style
 	 *            the style
@@ -70,7 +71,7 @@ public class InMemoryDBEngine extends TransactionalGraphEngine {
 	 * @param connect
 	 *            the connect
 	 */
-	public InMemoryDBEngine(QueryStyle style, Loader loader, boolean connect, TitanGraph graph) {
+	public InMemoryDBEngine(QueryStyle style, Loader loader, boolean connect, JanusGraph graph) {
 		super(style, loader);
 		if (connect) {
 			this.singleton = InMemoryGraphSingleton.getInstance(graph);
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/engines/TitanDBEngine.java b/aai-core/src/main/java/org/onap/aai/serialization/engines/JanusGraphDBEngine.java
index 4c6cb675..c12aa603 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/engines/TitanDBEngine.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/engines/JanusGraphDBEngine.java
@@ -27,31 +27,31 @@ import org.apache.tinkerpop.gremlin.structure.Vertex;
 import org.apache.tinkerpop.gremlin.structure.VertexProperty;
 import org.onap.aai.dbmap.DBConnectionType;
 import org.onap.aai.introspection.Loader;
-import org.onap.aai.serialization.db.TitanGraphSingleton;
+import org.onap.aai.serialization.db.JanusGraphSingleton;
 
-public class TitanDBEngine extends TransactionalGraphEngine {
+public class JanusGraphDBEngine extends TransactionalGraphEngine {
 
 	/**
-	 * Instantiates a new titan DB engine.
+	 * Instantiates a new JanusGraph DB engine.
 	 *
 	 * @param style the style
 	 * @param loader the loader
 	 */
-	public TitanDBEngine(QueryStyle style, DBConnectionType connectionType, Loader loader) {
-		super(style, loader, connectionType, TitanGraphSingleton.getInstance());
+	public JanusGraphDBEngine(QueryStyle style, DBConnectionType connectionType, Loader loader) {
+		super(style, loader, connectionType, JanusGraphSingleton.getInstance());
 	}
 	
 	/**
-	 * Instantiates a new titan DB engine.
+	 * Instantiates a new JanusGraph DB engine.
 	 *
 	 * @param style the style
 	 * @param loader the loader
 	 * @param connect the connect
 	 */
-	public TitanDBEngine(QueryStyle style, Loader loader, boolean connect) {
+	public JanusGraphDBEngine(QueryStyle style, Loader loader, boolean connect) {
 		super(style, loader);
 		if (connect) {
-			this.singleton = TitanGraphSingleton.getInstance();
+			this.singleton = JanusGraphSingleton.getInstance();
 		}
 	}
 
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/engines/TransactionalGraphEngine.java b/aai-core/src/main/java/org/onap/aai/serialization/engines/TransactionalGraphEngine.java
index f300bd26..8eedf00d 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/engines/TransactionalGraphEngine.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/engines/TransactionalGraphEngine.java
@@ -19,9 +19,6 @@
  */
 package org.onap.aai.serialization.engines;
 
-import java.util.List;
-import java.util.concurrent.atomic.AtomicInteger;
-
 import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
 import org.apache.tinkerpop.gremlin.process.traversal.strategy.verification.ReadOnlyStrategy;
 import org.apache.tinkerpop.gremlin.structure.Graph;
@@ -36,8 +33,11 @@ import org.onap.aai.serialization.db.GraphSingleton;
 import org.onap.aai.serialization.engines.query.GraphTraversalQueryEngine;
 import org.onap.aai.serialization.engines.query.QueryEngine;
 
-import com.thinkaurelius.titan.core.TitanGraph;
-import com.thinkaurelius.titan.core.schema.TitanManagement;
+import org.janusgraph.core.JanusGraph;
+import org.janusgraph.core.schema.JanusGraphManagement;
+
+import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
 
 public abstract class TransactionalGraphEngine {
 	
@@ -97,7 +97,7 @@ public abstract class TransactionalGraphEngine {
 	 *
 	 * @return the graph
 	 */
-	private TitanGraph getGraph() {
+	private JanusGraph getGraph() {
 		return singleton.getTxGraph(this.connectionType);
 	}
 	
@@ -237,7 +237,7 @@ public abstract class TransactionalGraphEngine {
 			return readOnlyTraversal;
 		}
 		
-		public TitanManagement getManagementSystem() {
+		public JanusGraphManagement getManagementSystem() {
 			return getGraph().openManagement();
 		}
 	}
diff --git a/aai-core/src/main/java/org/onap/aai/serialization/queryformats/GraphSON.java b/aai-core/src/main/java/org/onap/aai/serialization/queryformats/GraphSON.java
index 3b803b49..4e69c9c2 100644
--- a/aai-core/src/main/java/org/onap/aai/serialization/queryformats/GraphSON.java
+++ b/aai-core/src/main/java/org/onap/aai/serialization/queryformats/GraphSON.java
@@ -21,7 +21,7 @@ package org.onap.aai.serialization.queryformats;
 
 import com.google.gson.JsonObject;
 import com.google.gson.JsonParser;
-import com.thinkaurelius.titan.graphdb.tinkerpop.TitanIoRegistry;
+import org.janusgraph.graphdb.tinkerpop.JanusGraphIoRegistry;
 import org.apache.tinkerpop.gremlin.structure.Direction;
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper;
@@ -33,7 +33,7 @@ import java.io.OutputStream;
 
 public class GraphSON implements FormatMapper {
 
-	private final GraphSONMapper mapper = GraphSONMapper.build().addRegistry(TitanIoRegistry.INSTANCE).create();
+	private final GraphSONMapper mapper = GraphSONMapper.build().addRegistry(JanusGraphIoRegistry.getInstance()).create();
 	private final GraphSONWriter writer = GraphSONWriter.build().mapper(mapper).create();
 	protected JsonParser parser = new JsonParser();
 	
diff --git a/aai-core/src/main/java/org/onap/aai/util/AAIConstants.java b/aai-core/src/main/java/org/onap/aai/util/AAIConstants.java
index 181b499d..f438d16b 100644
--- a/aai-core/src/main/java/org/onap/aai/util/AAIConstants.java
+++ b/aai-core/src/main/java/org/onap/aai/util/AAIConstants.java
@@ -41,8 +41,8 @@ public final class AAIConstants {
 	public static final String AAI_AUTH_CONFIG_FILENAME = AAI_HOME_ETC_AUTH + "aai_policy.json";
 	public static final String AAI_MECHID_CONFIG_FILENAME = AAI_HOME_ETC_APP_PROPERTIES + "mechIds.json";
 	public static final String AAI_HOME_ETC_QUERY = AAI_HOME_ETC + "query" + AAI_FILESEP + "stored-queries.properties";
-	public static final String REALTIME_DB_CONFIG = AAI_HOME_ETC_APP_PROPERTIES + "titan-realtime.properties";
-	public static final String CACHED_DB_CONFIG = AAI_HOME_ETC_APP_PROPERTIES + "titan-cached.properties";
+	public static final String REALTIME_DB_CONFIG = AAI_HOME_ETC_APP_PROPERTIES + "janusgraph-realtime.properties";
+	public static final String CACHED_DB_CONFIG = AAI_HOME_ETC_APP_PROPERTIES + "janusgraph-cached.properties";
 	public static final String AAI_HOME_ETC_OXM = AAI_HOME_ETC + "oxm" + AAI_FILESEP;
 	public static final String AAI_EVENT_DMAAP_PROPS = AAI_HOME_ETC_APP_PROPERTIES + "aaiEventDMaaPPublisher.properties";
 	public static final String AAI_HOME_ETC_SCRIPT = AAI_HOME_ETC + AAI_FILESEP + "scriptdata" + AAI_FILESEP;
diff --git a/aai-core/src/main/java/org/onap/aai/util/UniquePropertyCheck.java b/aai-core/src/main/java/org/onap/aai/util/UniquePropertyCheck.java
index 512ac755..bfa0f3a1 100644
--- a/aai-core/src/main/java/org/onap/aai/util/UniquePropertyCheck.java
+++ b/aai-core/src/main/java/org/onap/aai/util/UniquePropertyCheck.java
@@ -37,8 +37,8 @@ import org.slf4j.MDC;
 import com.att.eelf.configuration.Configuration;
 import com.att.eelf.configuration.EELFLogger;
 import com.att.eelf.configuration.EELFManager;
-import com.thinkaurelius.titan.core.TitanFactory;
-import com.thinkaurelius.titan.core.TitanGraph;
+import org.janusgraph.core.JanusGraphFactory;
+import org.janusgraph.core.JanusGraph;
 import org.onap.aai.dbmap.AAIGraphConfig;
 
 public class UniquePropertyCheck {
@@ -87,12 +87,12 @@ public class UniquePropertyCheck {
 		try {   
     		AAIConfig.init();
     		System.out.println("    ---- NOTE --- about to open graph (takes a little while)--------\n");
-    		TitanGraph tGraph = TitanFactory.open(new AAIGraphConfig.Builder(AAIConstants.REALTIME_DB_CONFIG).forService(UniquePropertyCheck.class.getSimpleName()).withGraphType("realtime").buildConfiguration());
+    		JanusGraph tGraph = JanusGraphFactory.open(new AAIGraphConfig.Builder(AAIConstants.REALTIME_DB_CONFIG).forService(UniquePropertyCheck.class.getSimpleName()).withGraphType("realtime").buildConfiguration());
     		
     		if( tGraph == null ) {
     			LoggingContext.statusCode(StatusCode.ERROR);
     			LoggingContext.responseCode(LoggingContext.AVAILABILITY_TIMEOUT_ERROR);
-    			logAndPrint(logger, " Error:  Could not get TitanGraph ");
+    			logAndPrint(logger, " Error:  Could not get JanusGraph ");
     			System.exit(1);
     		}
     		
diff --git a/aai-core/src/main/java/org/onap/aai/util/genxsd/YAMLfromOXM.java b/aai-core/src/main/java/org/onap/aai/util/genxsd/YAMLfromOXM.java
index ff7d44b6..ce5406a6 100644
--- a/aai-core/src/main/java/org/onap/aai/util/genxsd/YAMLfromOXM.java
+++ b/aai-core/src/main/java/org/onap/aai/util/genxsd/YAMLfromOXM.java
@@ -287,12 +287,6 @@ public class YAMLfromOXM extends OxmFileProcessor {
 	        for ( int k = 0; addTypeV != null && k < addTypeV.size(); ++k ) {
 	        	String addType = addTypeV.elementAt(k);
 				logger.debug("addType: "+ addType);
-				if(addType == "overloaded-model" || addType.equals("OverloadedModel") || addType == "owning-entity") {
-					logger.debug("Description check: "+ addType+"opId="+opId+" itemName=none");
-//					Log.info("Element name="+xmlElementElement.getAttribute("name"));
-				}
-
-	        
 	        	if ( opId == null || !opId.contains(addType)) {
 	        		processJavaTypeElementSwagger( addType, getJavaTypeElementSwagger(addType), 
 	    				pathSb, definitionsSb, path,  tag == null ? useTag : tag, useOpId, null,