Add bulk API to gizmo

Add bulk API to gizmo

IssueID: AAI-481

Change-Id: Iff9df1a8fdc73c87d726da7294c2eb9f471080f1
Signed-off-by: Bansal, Nitin (nb121v) <nitin.bansal@amdocs.com>

17 files changed, 2006 insertions, 685 deletions

diff --git a/src/main/java/org/openecomp/crud/dao/GraphDao.java b/src/main/java/org/openecomp/crud/dao/GraphDao.java
index c714249..67c1ff3 100644
--- a/src/main/java/org/openecomp/crud/dao/GraphDao.java
+++ b/src/main/java/org/openecomp/crud/dao/GraphDao.java
@@ -23,13 +23,14 @@
  */
 package org.openecomp.crud.dao;
 
+import java.util.List;
+import java.util.Map;
+
 import org.openecomp.crud.entity.Edge;
+
 import org.openecomp.crud.entity.Vertex;
 import org.openecomp.crud.exception.CrudException;
 
-import java.util.List;
-import java.util.Map;
-
 public interface GraphDao {
 
   public Vertex getVertex(String id) throws CrudException;
@@ -137,4 +138,21 @@ public interface GraphDao {
    * @throws CrudException
    */
   public void deleteEdge(String id, String type) throws CrudException;
+  
+ 
+  public String openTransaction();
+  public void commitTransaction(String id) throws CrudException;
+  public void rollbackTransaction(String id) throws CrudException;
+  public boolean transactionExists(String id) throws CrudException;
+  
+  public Vertex addVertex(String type, Map<String, Object> properties, String txId) throws CrudException;
+  public Edge addEdge(String type, Vertex source, Vertex target, Map<String, Object> properties, String txId)
+	      throws CrudException;
+  public Vertex updateVertex(String id, String type, Map<String, Object> properties, String txId)
+	      throws CrudException;
+  
+  public Edge updateEdge(Edge edge, String txId) throws CrudException;
+  public void deleteVertex(String id, String type, String txId) throws CrudException;
+  public void deleteEdge(String id, String type, String txId) throws CrudException;
+  public Edge getEdge(String id, String type, String txId) throws CrudException;
 }
diff --git a/src/main/java/org/openecomp/crud/dao/champ/ChampDao.java b/src/main/java/org/openecomp/crud/dao/champ/ChampDao.java
index 31bc9ab..ed01038 100644
--- a/src/main/java/org/openecomp/crud/dao/champ/ChampDao.java
+++ b/src/main/java/org/openecomp/crud/dao/champ/ChampDao.java
@@ -23,7 +23,16 @@
  */
 package org.openecomp.crud.dao.champ;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
 import org.openecomp.aai.champcore.ChampGraph;
+import org.openecomp.aai.champcore.ChampTransaction;
 import org.openecomp.aai.champcore.exceptions.ChampMarshallingException;
 import org.openecomp.aai.champcore.exceptions.ChampObjectNotExistsException;
 import org.openecomp.aai.champcore.exceptions.ChampRelationshipNotExistsException;
@@ -41,628 +50,770 @@ import org.openecomp.crud.entity.Vertex;
 import org.openecomp.crud.exception.CrudException;
 import org.openecomp.crud.logging.CrudServiceMsgs;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Optional;
-import java.util.stream.Collectors;
-import java.util.stream.Stream;
-
-
 /**
- * This is the integration layer between the CRUD API service and the low level Champ library
- * for graph database interaction.
+ * This is the integration layer between the CRUD API service and the low level Champ library for graph database
+ * interaction.
  */
 public class ChampDao implements GraphDao {
 
-  public static final String CONFIG_STORAGE_BACKEND = "storage.backend";
-  public static final String CONFIG_STORAGE_BACKEND_DB = "storage.backend.db";
-  public static final String STORAGE_HBASE_DB = "hbase";
-  public static final String STORAGE_CASSANDRA_DB = "cassandra";
-  public static final String CONFIG_STORAGE_HOSTNAMES = "storage.hostnames";
-  public static final String CONFIG_STORAGE_PORT = "storage.port";
-  public static final String CONFIG_HBASE_ZNODE_PARENT = "storage.hbase.ext.zookeeper.znode.parent";
-  public static final String CONFIG_GRAPH_NAME = "graph.name";
-  public static final String GRAPH_UNQ_INSTANCE_ID_SUFFIX = "graph.unique-instance-id-suffix";
-
-  public static final String CONFIG_EVENT_STREAM_PUBLISHER = "event.stream.publisher";
-  public static final String CONFIG_EVENT_STREAM_NUM_PUBLISHERS = "event.stream.num-publishers";
-
-
-  public static final String DEFAULT_GRAPH_NAME = "default_graph";
-
-  private enum GraphType {
-    IN_MEMORY,
-    TITAN,
-    DSE
-  }
-  
-  /**
-   * Instance of the API used for interacting with the Champ library.
-   */
-  private ChampGraph champApi = null;
-
-  private Logger logger = LoggerFactory.getInstance().getLogger(ChampDao.class.getName());
-
-
-  /**
-   * Creates a new instance of the ChampDao.
-   *
-   * @param champGraph - Concrete implementation of the graph dao layer
-   */
-  public ChampDao(ChampGraph champGraph) {
-	this.champApi = champGraph;
-  }
-
-  @Override
-  public Vertex getVertex(String id) throws CrudException {
-    
-    try {
-      
-      if (logger.isDebugEnabled()) {
-        logger.debug("getVertex with id: " + id);
-      }
-      
-      long idAsLong = Long.parseLong(id);
-      
-      Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
-      
-      String nodeType = org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName();
-      if(retrievedVertex.isPresent() && 
-         retrievedVertex.get().getProperties().get(nodeType)!=null) {
-        return vertexFromChampObject(retrievedVertex.get(), 
-                                     retrievedVertex.get().getProperties().get(nodeType).toString());
-      } else {
-
-        // We didn't find a vertex with the supplied id, so just throw an
-        // exception.
-        throw new CrudException("No vertex with id " + id + " found in graph",
-                                javax.ws.rs.core.Response.Status.NOT_FOUND);
-      }
-      
-    } catch (ChampUnmarshallingException | ChampTransactionException e) {
-
-      // Something went wrong - throw an exception.
-      throw new CrudException(e.getMessage(),
-                              javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
-  
-  @Override
-  public Vertex getVertex(String id, String type) throws CrudException {
-
-    try {
-
-      if (logger.isDebugEnabled()) {
-        logger.debug("getVertex with id: " + id);
-      }
-
-      long idAsLong = Long.parseLong(id);
-
-      // Request the vertex from the graph db.
-      Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
-
-      // Did we find it?
-      if (retrievedVertex.isPresent() && retrievedVertex.get().getProperties()
-          .get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName())!=null && retrievedVertex.get().getProperties()
-          .get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()).toString()
-          .equalsIgnoreCase(type)) {  
-        
-        // Yup, convert it to a Vector object and return it.
-        return vertexFromChampObject(retrievedVertex.get(),type);
-
-      } else {
-
-        // We didn't find a vertex with the supplied id, so just throw an
-        // exception.
-        throw new CrudException("No vertex with id " + id + " found in graph",
-            javax.ws.rs.core.Response.Status.NOT_FOUND);
-      }
-
-    } catch (ChampUnmarshallingException | ChampTransactionException e) {
-
-      // Something went wrong - throw an exception.
-      throw new CrudException(e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
-
-
-  @Override
-  public List<Edge> getVertexEdges(String id) throws CrudException {
-
-    if (logger.isDebugEnabled()) {
-      logger.debug("get Edges incident to vertex with id: " + id + " from graph");
-    }
-
-    try {
-      long idAsLong = Long.parseLong(id); // GDF - what to do about id???
-
-      // Request the vertex from the graph db.
-      Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
-
-      // Did we find it?
-      if (retrievedVertex.isPresent()) {
-
-        // Query the Champ library for the edges which are incident to the specified
-        // vertex.
-        Stream<ChampRelationship> relationships =
-            champApi.retrieveRelationships(retrievedVertex.get());
-
-        // Build an edge list from the result stream.
-        List<Edge> edges = new ArrayList<Edge>();
-        relationships.forEach(r -> edges.add(edgeFromChampRelationship(r)));
-
-        return edges;
-
-      } else {
-
-        // We couldn't find the specified vertex, so throw an exception.
-        throw new CrudException("No vertex with id " + id + " found in graph",
-            javax.ws.rs.core.Response.Status.NOT_FOUND);
-      }
-
-    } catch (ChampUnmarshallingException e) {
-
-      // Something went wrong, so throw an exception.
-      throw new CrudException(e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+	public static final String CONFIG_STORAGE_BACKEND = "storage.backend";
+	public static final String CONFIG_STORAGE_BACKEND_DB = "storage.backend.db";
+	public static final String STORAGE_HBASE_DB = "hbase";
+	public static final String STORAGE_CASSANDRA_DB = "cassandra";
+	public static final String CONFIG_STORAGE_HOSTNAMES = "storage.hostnames";
+	public static final String CONFIG_STORAGE_PORT = "storage.port";
+	public static final String CONFIG_HBASE_ZNODE_PARENT = "storage.hbase.ext.zookeeper.znode.parent";
+	public static final String CONFIG_GRAPH_NAME = "graph.name";
+	public static final String GRAPH_UNQ_INSTANCE_ID_SUFFIX = "graph.unique-instance-id-suffix";
+
+	public static final String CONFIG_EVENT_STREAM_PUBLISHER = "event.stream.publisher";
+	public static final String CONFIG_EVENT_STREAM_NUM_PUBLISHERS = "event.stream.num-publishers";
+
+	private static Map<String, ChampTransaction> transactions = new ConcurrentHashMap<String, ChampTransaction>();
+	public static final String DEFAULT_GRAPH_NAME = "default_graph";
+
+	private enum GraphType {
+		IN_MEMORY, TITAN, DSE
+	}
+
+	/**
+	 * Instance of the API used for interacting with the Champ library.
+	 */
+	private ChampGraph champApi = null;
+
+	private Logger logger = LoggerFactory.getInstance().getLogger(ChampDao.class.getName());
+
+	/**
+	 * Creates a new instance of the ChampDao.
+	 *
+	 * @param champGraph
+	 *            - Concrete implementation of the graph dao layer
+	 */
+	public ChampDao(ChampGraph champGraph) {
+		this.champApi = champGraph;
+	}
+
+	@Override
+	public Vertex getVertex(String id) throws CrudException {
+
+		try {
+
+			if (logger.isDebugEnabled()) {
+				logger.debug("getVertex with id: " + id);
+			}
+
+			long idAsLong = Long.parseLong(id);
+
+			Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
+
+			String nodeType = org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName();
+			if (retrievedVertex.isPresent() && retrievedVertex.get().getProperties().get(nodeType) != null) {
+				return vertexFromChampObject(retrievedVertex.get(), retrievedVertex.get().getProperties().get(nodeType).toString());
+			} else {
+
+				// We didn't find a vertex with the supplied id, so just throw an
+				// exception.
+				throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
+
+		} catch (ChampUnmarshallingException | ChampTransactionException e) {
+
+			// Something went wrong - throw an exception.
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public Vertex getVertex(String id, String type) throws CrudException {
+
+		try {
+
+			if (logger.isDebugEnabled()) {
+				logger.debug("getVertex with id: " + id);
+			}
+
+			long idAsLong = Long.parseLong(id);
+
+			// Request the vertex from the graph db.
+			Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
+
+			// Did we find it?
+			if (retrievedVertex.isPresent()
+					&& retrievedVertex.get().getProperties().get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()) != null
+					&& retrievedVertex.get().getProperties().get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()).toString()
+							.equalsIgnoreCase(type)) {
+
+				// Yup, convert it to a Vector object and return it.
+				return vertexFromChampObject(retrievedVertex.get(), type);
+
+			} else {
+
+				// We didn't find a vertex with the supplied id, so just throw an
+				// exception.
+				throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
+
+		} catch (ChampUnmarshallingException | ChampTransactionException e) {
+
+			// Something went wrong - throw an exception.
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public List<Edge> getVertexEdges(String id) throws CrudException {
+
+		if (logger.isDebugEnabled()) {
+			logger.debug("get Edges incident to vertex with id: " + id + " from graph");
+		}
+
+		try {
+			long idAsLong = Long.parseLong(id); // GDF - what to do about id???
+
+			// Request the vertex from the graph db.
+			Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
+
+			// Did we find it?
+			if (retrievedVertex.isPresent()) {
+
+				// Query the Champ library for the edges which are incident to the specified
+				// vertex.
+				Stream<ChampRelationship> relationships = champApi.retrieveRelationships(retrievedVertex.get());
+
+				// Build an edge list from the result stream.
+				List<Edge> edges = new ArrayList<Edge>();
+				relationships.forEach(r -> edges.add(edgeFromChampRelationship(r)));
+
+				return edges;
+
+			} else {
+
+				// We couldn't find the specified vertex, so throw an exception.
+				throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
+
+		} catch (ChampUnmarshallingException e) {
+
+			// Something went wrong, so throw an exception.
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+
+		} catch (ChampObjectNotExistsException e) {
+
+			// We couldn't find the specified vertex, so throw an exception.
+			throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+		} catch (ChampTransactionException e) {
+			throw new CrudException("Transaction error occured", javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public Vertex addVertex(String type, Map<String, Object> properties) throws CrudException {
+
+		if (logger.isDebugEnabled()) {
+			logger.debug("Add/update vertex: {label: " + type + " properties:" + propertiesMapToString(properties));
+		}
+
+		// Add the aai_node_type so that AAI can read the data created by gizmo
+		properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+		// Create an object to represent our vertex in the format expected by the Champ library.
+		ChampObject objectToCreate = buildChampObject(type, properties);
+
+		try {
+
+			// Ask the Champ library to store our vertex, placing the returned object into a
+			// list so that we can easily put that into our result object.
+			return vertexFromChampObject(champApi.storeObject(objectToCreate), type);
+
+		} catch (ChampMarshallingException | ChampSchemaViolationException | ChampObjectNotExistsException | ChampTransactionException e) {
+
+			// Something went wrong - throw an exception.
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public Vertex updateVertex(String id, String type, Map<String, Object> properties) throws CrudException {
+
+		if (logger.isDebugEnabled()) {
+			logger.debug("Update vertex with id: " + id + " with properties: " + propertiesMapToString(properties));
+		}
+		// Add the aai_node_type so that AAI can read the data created by gizmo
+		properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+		try {
+			// Now, build the updated version of the Champ Object...
+			ChampObject updateObject = buildChampObject(id, type, properties);
+			// ...and send it to the Champ library.
+			return vertexFromChampObject(champApi.replaceObject(updateObject), type);
+
+		} catch (ChampObjectNotExistsException e) {
+			throw new CrudException("Not Found", javax.ws.rs.core.Response.Status.NOT_FOUND);
+		} catch (NumberFormatException | ChampMarshallingException | ChampSchemaViolationException e) {
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		} catch (ChampTransactionException e) {
+			throw new CrudException("Transaction error occured", javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+
+	}
+
+	@Override
+	public List<Vertex> getVertices(String type, Map<String, Object> filter) throws CrudException {
+
+		if (logger.isDebugEnabled()) {
+			logger.debug("Retrieve vertices with type label: " + type + " which map query parameters: " + propertiesMapToString(filter));
+		}
+
+		filter.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+		Stream<ChampObject> retrievedVertices;
+		try {
+			retrievedVertices = champApi.queryObjects(filter);
+
+		} catch (ChampTransactionException e) {
+			throw new CrudException("Transaction error occured", javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+
+		List<Vertex> vertices = retrievedVertices.map(v -> vertexFromChampObject(v, type)).collect(Collectors.toList());
+
+		if (logger.isDebugEnabled()) {
+			logger.debug("Resulting vertex list: " + retrievedVertices);
+		}
+
+		// ...and return it to the caller.
+		return vertices;
+	}
+
+	private Object getRelKey(String id) {
+		Object key = id;
+		// convert into Long if applicable . TODO : revisit in story NUC-304
+		try {
+			key = Long.parseLong(id);
+		} catch (NumberFormatException e) {
+			// The id isn't a Long, leave it as a string
+		}
+
+		return key;
+	}
+
+	@Override
+	public Edge getEdge(String id, String type) throws CrudException {
+
+		if (logger.isDebugEnabled()) {
+			logger.debug("Get edge with id: " + id);
+		}
+
+		try {
+
+			// Request the edge from the graph db.
+			Optional<ChampRelationship> relationship = champApi.retrieveRelationship(getRelKey(id));
+
+			// Did we find it?
+			if (relationship.isPresent() && relationship.get().getType().equals(type)) {
+
+				// Yup - return the result.
+				return edgeFromChampRelationship(relationship.get());
+
+			} else {
+
+				// We didn't find an edge with the supplied id, so throw an exception.
+				throw new CrudException("No edge with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
+
+		} catch (ChampUnmarshallingException | ChampTransactionException e) {
+
+			// Something went wrong, so throw an exception.
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public Edge addEdge(String type, Vertex source, Vertex target, Map<String, Object> properties) throws CrudException {
+
+		// For now, assume source and target are straight ids...
+		try {
+
+			Optional<ChampObject> sourceObject = champApi.retrieveObject(Long.parseLong(source.getId().get()));
+			if (!sourceObject.isPresent() || !sourceObject.get().getType().equals(source.getType())) {
+				throw new CrudException("Error creating edge - source vertex with id " + source + " does not exist in graph data base",
+						javax.ws.rs.core.Response.Status.BAD_REQUEST);
+			}
+
+			Optional<ChampObject> targetObject = champApi.retrieveObject(Long.parseLong(target.getId().get()));
+			if (!targetObject.isPresent() || !targetObject.get().getType().equals(target.getType())) {
+				throw new CrudException("Error creating edge - target vertex with id " + target + " does not exist in graph data base",
+						javax.ws.rs.core.Response.Status.BAD_REQUEST);
+			}
+
+			// Now, create the ChampRelationship object for our edge and store it in
+			// the graph database.
+			return edgeFromChampRelationship(
+					champApi.storeRelationship(new ChampRelationship.Builder(sourceObject.get(), targetObject.get(), type).properties(properties).build()));
+
+		} catch (ChampMarshallingException | ChampObjectNotExistsException | ChampSchemaViolationException | ChampRelationshipNotExistsException
+				| ChampUnmarshallingException | NumberFormatException | ChampTransactionException e) {
+
+			throw new CrudException("Error creating edge: " + e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public List<Edge> getEdges(String type, Map<String, Object> filter) throws CrudException {
+
+		filter.put(ChampRelationship.ReservedPropertyKeys.CHAMP_RELATIONSHIP_TYPE.toString(), type);
+
+		Stream<ChampRelationship> retrievedRelationships;
+		try {
+			retrievedRelationships = champApi.queryRelationships(filter);
+
+		} catch (ChampTransactionException e) {
+			throw new CrudException("Transaction error occured", javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+
+		// Process the result stream from the Champ library into an Edge list, keeping only
+		// edges of the specified type.
+		List<Edge> edges = retrievedRelationships.map(r -> edgeFromChampRelationship(r)).collect(Collectors.toList());
+
+		return edges;
+	}
+
+	@Override
+	public Edge updateEdge(Edge edge) throws CrudException {
+
+		if (logger.isDebugEnabled()) {
+			logger.debug("Update edge with id: " + edge.getId() + " with properties: " + propertiesMapToString(edge.getProperties()));
+		}
+
+		try {
+			// Now, build the updated version of the Champ Relationship...
+			ChampRelationship updateRelationship = new ChampRelationship.Builder(
+					buildChampObject(edge.getSource().getId().get(), edge.getSource().getType(), edge.getSource().getProperties()),
+					buildChampObject(edge.getTarget().getId().get(), edge.getTarget().getType(), edge.getTarget().getProperties()), edge.getType())
+							.key(getRelKey(edge.getId().get())).properties(edge.getProperties()).build();
+			// ...and send it to the Champ library.
+			return edgeFromChampRelationship(champApi.replaceRelationship(updateRelationship));
+
+		} catch (ChampRelationshipNotExistsException ex) {
+			throw new CrudException("Not Found", javax.ws.rs.core.Response.Status.NOT_FOUND);
+		} catch (NumberFormatException | ChampUnmarshallingException | ChampMarshallingException | ChampSchemaViolationException
+				| ChampTransactionException ex) {
+
+			throw new CrudException(ex.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public void deleteVertex(String id, String type) throws CrudException {
+
+		try {
+
+			// First, retrieve the vertex that we intend to delete.
+			Optional<ChampObject> retrievedVertex = champApi.retrieveObject(Long.parseLong(id));
+
+			// Did we find it?
+			if (!retrievedVertex.isPresent() || !retrievedVertex.get().getType().equals(type)) {
+				throw new CrudException("Failed to delete vertex with id: " + id + " - vertex does not exist.", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
+
+			// Now, verify that there are no edges incident to the vertex (they must be deleted
+			// first if so).
+			Stream<ChampRelationship> relationships = champApi.retrieveRelationships(retrievedVertex.get());
+
+			if (relationships.count() > 0) {
+				throw new CrudException("Attempt to delete vertex with id " + id + " which has incident edges.", javax.ws.rs.core.Response.Status.BAD_REQUEST);
+			}
+
+			// Finally, we can attempt to delete our vertex.
+			champApi.deleteObject(Long.parseLong(id));
+
+		} catch (NumberFormatException | ChampUnmarshallingException | ChampObjectNotExistsException | ChampTransactionException e) {
+
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public void deleteEdge(String id, String type) throws CrudException {
+
+		try {
+
+			// First, retrieve the edge that we want to delete.
+			Optional<ChampRelationship> relationshipToDelete = champApi.retrieveRelationship(getRelKey(id));
+
+			// Did we find it?
+			if (!relationshipToDelete.isPresent() || !relationshipToDelete.get().getType().equals(type)) {
+				throw new CrudException("Failed to delete edge with id: " + id + " - edge does not exist", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
+
+			// Now we can delete the edge.
+			champApi.deleteRelationship(relationshipToDelete.get());
+
+		} catch (ChampRelationshipNotExistsException | NumberFormatException | ChampUnmarshallingException | ChampTransactionException e) {
+
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	/**
+	 * This helper method generates a string representation of a properties map for logging purposes.
+	 *
+	 * @param properties
+	 *            - The properties map to be converted.
+	 * @return - The log statement friendly conversion of the properties map.
+	 */
+	private String propertiesMapToString(Map<String, Object> properties) {
+
+		StringBuilder sb = new StringBuilder();
+		sb.append("{");
+
+		for (String key : properties.keySet()) {
+			sb.append("(").append(key).append(" -> ").append(properties.get(key)).append(") ");
+		}
+
+		sb.append("}");
+
+		return sb.toString();
+	}
+
+	/**
+	 * This helper method constructs a {@link ChampObject} suitable for passing to the Champ library.
+	 *
+	 * @param type
+	 *            - The type to assign to our ChampObject
+	 * @param properties
+	 *            - The set of properties to assign to our ChampObject
+	 * @return - A populated ChampObject
+	 */
+	private ChampObject buildChampObject(String type, Map<String, Object> properties) {
+
+		ObjectBuildOrPropertiesStep objectInProgress = ChampObject.create().ofType(type).withoutKey();
+
+		for (String key : properties.keySet()) {
+			objectInProgress.withProperty(key, properties.get(key));
+		}
+		return objectInProgress.build();
+	}
+
+	/**
+	 * This helper method constructs a {@link ChampObject} suitable for passing to the Champ library.
+	 *
+	 * @param id
+	 *            - Unique identifier for this object.
+	 * @param type
+	 *            - The type to assign to our ChampObject
+	 * @param properties
+	 *            - The set of properties to assign to our ChampObject
+	 * @return - A populated ChampObject
+	 */
+	private ChampObject buildChampObject(String id, String type, Map<String, Object> properties) {
+
+		ObjectBuildOrPropertiesStep objectInProgress = ChampObject.create().ofType(type).withKey(Long.parseLong(id));
+
+		for (String key : properties.keySet()) {
+			objectInProgress.withProperty(key, properties.get(key));
+		}
+		return objectInProgress.build();
+	}
+
+	private Vertex vertexFromChampObject(ChampObject champObject, String type) {
+
+		// Get the identifier for this vertex from the Champ object.
+		Object id = champObject.getKey().orElse("");
+
+		// Start building our {@link Vertex} object.
+		Vertex.Builder vertexBuilder = new Vertex.Builder(type);
+		vertexBuilder.id(id.toString());
+
+		// Convert the properties associated with the Champ object into the form expected for
+		// a Vertex object.
+		for (String key : champObject.getProperties().keySet()) {
+			vertexBuilder.property(key, champObject.getProperties().get(key));
+		}
+
+		// ...and return it.
+		return vertexBuilder.build();
+	}
+
+	/**
+	 * This helper method converts a {@link ChampRelationship} from the Champ library into an equivalent {@link Edge}
+	 * object that is understood by the CRUD Service.
+	 *
+	 * @param relationship
+	 *            - The ChampRelationship object to be converted.
+	 * @return - An Edge object corresponding to the supplied ChampRelationship
+	 */
+	private Edge edgeFromChampRelationship(ChampRelationship relationship) {
+
+		// Populate the edge's id, if available.
+		Object relationshipId = relationship.getKey().orElse("");
+
+		Edge.Builder edgeBuilder = new Edge.Builder(relationship.getType()).id(relationshipId.toString());
+		edgeBuilder.source(vertexFromChampObject(relationship.getSource(),
+				relationship.getSource().getProperties().get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()) == null
+						? relationship.getSource().getType()
+						: relationship.getSource().getProperties().get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()).toString()));
+		edgeBuilder.target(vertexFromChampObject(relationship.getTarget(),
+				relationship.getTarget().getProperties().get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()) == null
+						? relationship.getTarget().getType()
+						: relationship.getTarget().getProperties().get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()).toString()));
+
+		for (String key : relationship.getProperties().keySet()) {
+			edgeBuilder.property(key, relationship.getProperties().get(key).toString());
+		}
+
+		return edgeBuilder.build();
+	}
+
+	/**
+	 * Performs any necessary shut down operations when the DAO is no longer needed.
+	 */
+	public void close() {
+
+		if (champApi != null) {
+
+			logger.info(CrudServiceMsgs.STOPPING_CHAMP_DAO);
+
+			champApi.shutdown();
+		}
+	}
+
+	@Override
+	public String openTransaction() {
+
+		ChampTransaction transaction = champApi.openTransaction();
+
+		transactions.put(transaction.id(), transaction);
+		logger.info(CrudServiceMsgs.TRANSACTION, "Stored transaction " + transaction.id() + " in hashmap");
+		logger.info(CrudServiceMsgs.TRANSACTION, "Hash map contents:");
+		for (String key : transactions.keySet()) {
+			logger.info(CrudServiceMsgs.TRANSACTION, key);
+		}
+		return transaction.id();
+	}
+
+	@Override
+	public void commitTransaction(String id) throws CrudException {
+
+		try {
+			champApi.commitTransaction(getTransaction(id));
+		} catch (ChampTransactionException e) {
+			throw new CrudException("Error while commiting transaction " + id, javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+		transactions.remove(id);
+	}
+
+	@Override
+	public void rollbackTransaction(String id) throws CrudException {
+
+		try {
+			champApi.rollbackTransaction(getTransaction(id));
+		} catch (ChampTransactionException e) {
+			throw new CrudException("Error while transaction rollback " + id, javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+		transactions.remove(id);
+	}
+
+	private ChampTransaction getTransaction(String id) throws CrudException {
+
+		logger.info(CrudServiceMsgs.TRANSACTION, "Looking up transaction " + id);
+		if (transactions.containsKey(id)) {
+			logger.info(CrudServiceMsgs.TRANSACTION, "Found it!");
+			return (transactions.get(id));
+		} else {
+			logger.info(CrudServiceMsgs.TRANSACTION, "Didn't find transaction id " + id + ".  Hash map contains: ");
+			for (String key : transactions.keySet()) {
+				logger.info(CrudServiceMsgs.TRANSACTION, key);
+			}
+			throw new CrudException("No open transaction with id: " + id, javax.ws.rs.core.Response.Status.NOT_FOUND);
+		}
+	}
+
+	@Override
+	public Vertex addVertex(String type, Map<String, Object> properties, String txId) throws CrudException {
+		if (logger.isDebugEnabled()) {
+			logger.debug("Add/update vertex: {label: " + type + " properties:" + propertiesMapToString(properties));
+		}
+
+		// Add the aai_node_type so that AAI can read the data created by gizmo
+		properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+		// Create an object to represent our vertex in the format expected by the Champ library.
+		ChampObject objectToCreate = buildChampObject(type, properties);
+
+		try {
+
+			// Ask the Champ library to store our vertex, placing the returned object into a
+			// list so that we can easily put that into our result object.
+			return vertexFromChampObject(champApi.storeObject(objectToCreate, Optional.of(getTransaction(txId))), type);
+
+		} catch (ChampMarshallingException | ChampSchemaViolationException | ChampObjectNotExistsException | ChampTransactionException e) {
+
+			// Something went wrong - throw an exception.
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public Edge addEdge(String type, Vertex source, Vertex target, Map<String, Object> properties, String txId) throws CrudException {
+		// For now, assume source and target are straight ids...
+		try {
+
+			Optional<ChampObject> sourceObject = champApi.retrieveObject(Long.parseLong(source.getId().get()), Optional.of(getTransaction(txId)));
+			if (!sourceObject.isPresent() || !sourceObject.get().getType().equals(source.getType())) {
+				throw new CrudException("Error creating edge - source vertex with id " + source + " does not exist in graph data base",
+						javax.ws.rs.core.Response.Status.BAD_REQUEST);
+			}
+
+			Optional<ChampObject> targetObject = champApi.retrieveObject(Long.parseLong(target.getId().get()), Optional.of(getTransaction(txId)));
+			if (!targetObject.isPresent() || !targetObject.get().getType().equals(target.getType())) {
+				throw new CrudException("Error creating edge - target vertex with id " + target + " does not exist in graph data base",
+						javax.ws.rs.core.Response.Status.BAD_REQUEST);
+			}
+
+			// Now, create the ChampRelationship object for our edge and store it in
+			// the graph database.
+			return edgeFromChampRelationship(
+					champApi.storeRelationship(new ChampRelationship.Builder(sourceObject.get(), targetObject.get(), type).properties(properties).build(),
+							Optional.of(getTransaction(txId))));
+
+		} catch (ChampMarshallingException | ChampObjectNotExistsException | ChampSchemaViolationException | ChampTransactionException
+				| ChampRelationshipNotExistsException | ChampUnmarshallingException e) {
+
+			throw new CrudException("Error creating edge: " + e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+
+	}
+
+	@Override
+	public Vertex updateVertex(String id, String type, Map<String, Object> properties, String txId) throws CrudException {
+		if (logger.isDebugEnabled()) {
+			logger.debug("Update vertex with id: " + id + " with properties: " + propertiesMapToString(properties));
+		}
+		// Add the aai_node_type so that AAI can read the data created by gizmo
+		properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+		try {
+			// Now, build the updated version of the Champ Object...
+			ChampObject updateObject = buildChampObject(id, type, properties);
+			// ...and send it to the Champ library.
+			return vertexFromChampObject(champApi.replaceObject(updateObject, Optional.of(getTransaction(txId))), type);
+
+		} catch (ChampObjectNotExistsException e) {
+			throw new CrudException("Not Found", javax.ws.rs.core.Response.Status.NOT_FOUND);
+		} catch (NumberFormatException | ChampMarshallingException | ChampTransactionException | ChampSchemaViolationException e) {
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
+
+	@Override
+	public boolean transactionExists(String id) throws CrudException {
+		return transactions.containsKey(id);
+	}
+
+	@Override
+	public void deleteVertex(String id, String type, String txId) throws CrudException {
+		try {
+
+			// First, retrieve the vertex that we intend to delete.
+			Optional<ChampObject> retrievedVertex = champApi.retrieveObject(Long.parseLong(id), Optional.of(getTransaction(txId)));
+
+			// Did we find it?
+			if (!retrievedVertex.isPresent() || !retrievedVertex.get().getType().equals(type)) {
+				throw new CrudException("Failed to delete vertex with id: " + id + " - vertex does not exist.", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
+
+			// Now, verify that there are no edges incident to the vertex (they must be deleted
+			// first if so).
+			Stream<ChampRelationship> relationships = champApi.retrieveRelationships(retrievedVertex.get(), Optional.of(getTransaction(txId)));
+
+			if (relationships.count() > 0) {
+				throw new CrudException("Attempt to delete vertex with id " + id + " which has incident edges.", javax.ws.rs.core.Response.Status.BAD_REQUEST);
+			}
+
+			// Finally, we can attempt to delete our vertex.
+			champApi.deleteObject(Long.parseLong(id), Optional.of(getTransaction(txId)));
 
-    } catch (ChampObjectNotExistsException e) {
+		} catch (NumberFormatException | ChampUnmarshallingException | ChampObjectNotExistsException | ChampTransactionException e) {
 
-      // We couldn't find the specified vertex, so throw an exception.
-      throw new CrudException("No vertex with id " + id + " found in graph",
-          javax.ws.rs.core.Response.Status.NOT_FOUND);
-    } catch (ChampTransactionException e) {
-      throw new CrudException("Transaction error occured",
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
 
+	}
 
-  @Override
-  public Vertex addVertex(String type, Map<String, Object> properties) throws CrudException {
+	@Override
+	public Edge updateEdge(Edge edge, String txId) throws CrudException {
+		if (logger.isDebugEnabled()) {
+			logger.debug("Update edge with id: " + edge.getId() + " with properties: " + propertiesMapToString(edge.getProperties()));
+		}
 
-    if (logger.isDebugEnabled()) {
-      logger.debug("Add/update vertex: {label: " + type
-          + " properties:" + propertiesMapToString(properties));
-    }
+		try {
+			// Now, build the updated version of the Champ Relationship...
+			ChampRelationship updateRelationship = new ChampRelationship.Builder(
+					buildChampObject(edge.getSource().getId().get(), edge.getSource().getType(), edge.getSource().getProperties()),
+					buildChampObject(edge.getTarget().getId().get(), edge.getTarget().getType(), edge.getTarget().getProperties()), edge.getType())
+							.key(getRelKey(edge.getId().get())).properties(edge.getProperties()).build();
+			// ...and send it to the Champ library.
+			return edgeFromChampRelationship(champApi.replaceRelationship(updateRelationship, Optional.of(getTransaction(txId))));
 
-    //Add the aai_node_type so that AAI can read the data created by gizmo
-    properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+		} catch (ChampRelationshipNotExistsException ex) {
+			throw new CrudException("Not Found", javax.ws.rs.core.Response.Status.NOT_FOUND);
+		} catch (NumberFormatException | ChampUnmarshallingException | ChampMarshallingException | ChampSchemaViolationException
+				| ChampTransactionException ex) {
 
-    // Create an object to represent our vertex in the format expected by the Champ library.
-    ChampObject objectToCreate = buildChampObject(type, properties);
+			throw new CrudException(ex.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
 
-    try {
+	@Override
+	public void deleteEdge(String id, String type, String txId) throws CrudException {
+		try {
 
-      // Ask the Champ library to store our vertex, placing the returned object into a
-      // list so that we can easily put that into our result object.
-      return vertexFromChampObject(champApi.storeObject(objectToCreate),type);
+			// First, retrieve the edge that we want to delete.
+			Optional<ChampRelationship> relationshipToDelete = champApi.retrieveRelationship(getRelKey(id), Optional.of(getTransaction(txId)));
 
-    } catch (ChampMarshallingException
-        | ChampSchemaViolationException
-        | ChampObjectNotExistsException 
-        | ChampTransactionException e) {
+			// Did we find it?
+			if (!relationshipToDelete.isPresent() || !relationshipToDelete.get().getType().equals(type)) {
+				throw new CrudException("Failed to delete edge with id: " + id + " - edge does not exist", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
 
-      // Something went wrong - throw an exception.
-      throw new CrudException(e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
+			// Now we can delete the edge.
+			champApi.deleteRelationship(relationshipToDelete.get(), Optional.of(getTransaction(txId)));
 
+		} catch (ChampRelationshipNotExistsException | NumberFormatException | ChampUnmarshallingException | ChampTransactionException e) {
 
-  @Override
-  public Vertex updateVertex(String id, String type, Map<String, Object> properties)
-      throws CrudException {
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
 
-    if (logger.isDebugEnabled()) {
-      logger.debug("Update vertex with id: " + id + " with properties: "
-          + propertiesMapToString(properties));
-    }
-    //Add the aai_node_type so that AAI can read the data created by gizmo
-    properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+	}
 
-    try {
-      // Now, build the updated version of the Champ Object...
-      ChampObject updateObject = buildChampObject(id, type, properties);
-      // ...and send it to the Champ library.
-      return vertexFromChampObject(champApi.replaceObject(updateObject),type);
+	@Override
+	public Edge getEdge(String id, String type, String txId) throws CrudException {
+		if (logger.isDebugEnabled()) {
+			logger.debug("Get edge with id: " + id);
+		}
 
-    } catch (ChampObjectNotExistsException e) {
-      throw new CrudException("Not Found", javax.ws.rs.core.Response.Status.NOT_FOUND);
-    } catch (NumberFormatException | ChampMarshallingException | ChampSchemaViolationException e) {
-      throw new CrudException(e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    } catch (ChampTransactionException e) {
-      throw new CrudException("Transaction error occured",
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
+		try {
 
-  }
+			// Request the edge from the graph db.
+			Optional<ChampRelationship> relationship = champApi.retrieveRelationship(getRelKey(id), Optional.of(getTransaction(txId)));
 
+			// Did we find it?
+			if (relationship.isPresent() && relationship.get().getType().equals(type)) {
 
-  @Override
-  public List<Vertex> getVertices(String type, Map<String, Object> filter) throws CrudException {
+				// Yup - return the result.
+				return edgeFromChampRelationship(relationship.get());
 
-    if (logger.isDebugEnabled()) {
-      logger.debug("Retrieve vertices with type label: " + type + " which map query parameters: "
-          + propertiesMapToString(filter));
-    }
+			} else {
 
+				// We didn't find an edge with the supplied id, so throw an exception.
+				throw new CrudException("No edge with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+			}
 
-    filter.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+		} catch (ChampUnmarshallingException | ChampTransactionException e) {
 
+			// Something went wrong, so throw an exception.
+			throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+		}
+	}
 
-    Stream<ChampObject> retrievedVertices;
-    try {
-      retrievedVertices = champApi.queryObjects(filter);
-      
-    } catch (ChampTransactionException e) {
-      throw new CrudException("Transaction error occured",
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-
-    List<Vertex> vertices = retrievedVertices
-        .map(v -> vertexFromChampObject(v,type))
-        .collect(Collectors.toList());
-
-
-    if (logger.isDebugEnabled()) {
-      logger.debug("Resulting vertex list: " + retrievedVertices);
-    }
-
-    // ...and return it to the caller.
-    return vertices;
-  }
-
-  private Object getRelKey(String id) {
-    Object key = id;
-    // convert into Long if applicable . TODO : revisit in story NUC-304
-    try {
-      key = Long.parseLong(id);
-    } catch (NumberFormatException e) {
-      // The id isn't a Long, leave it as a string
-    }
-
-    return key;
-  }
-
-  @Override
-  public Edge getEdge(String id, String type) throws CrudException {
-
-    if (logger.isDebugEnabled()) {
-      logger.debug("Get edge with id: " + id);
-    }
-
-    try {
-
-      // Request the edge from the graph db.
-      Optional<ChampRelationship> relationship = champApi.retrieveRelationship(getRelKey(id));
-
-      // Did we find it?
-      if (relationship.isPresent() && relationship.get().getType().equals(type)) {
-
-        // Yup - return the result.
-        return edgeFromChampRelationship(relationship.get());
-
-      } else {
-
-        // We didn't find an edge with the supplied id, so throw an exception.
-        throw new CrudException("No edge with id " + id + " found in graph",
-            javax.ws.rs.core.Response.Status.NOT_FOUND);
-      }
-
-    } catch (ChampUnmarshallingException | ChampTransactionException e) {
-
-      // Something went wrong, so throw an exception.
-      throw new CrudException(e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
-
-  @Override
-  public Edge addEdge(String type,
-                      Vertex source,
-                      Vertex target,
-                      Map<String, Object> properties) throws CrudException {
-
-    // For now, assume source and target are straight ids...
-    try {
-
-      Optional<ChampObject> sourceObject
-          = champApi.retrieveObject(Long.parseLong(source.getId().get()));
-      if (!sourceObject.isPresent() || !sourceObject.get().getType().equals(source.getType())) {
-        throw new CrudException("Error creating edge - source vertex with id " + source
-            + " does not exist in graph data base",
-            javax.ws.rs.core.Response.Status.BAD_REQUEST);
-      }
-
-      Optional<ChampObject> targetObject
-          = champApi.retrieveObject(Long.parseLong(target.getId().get()));
-      if (!targetObject.isPresent() || !targetObject.get().getType().equals(target.getType())) {
-        throw new CrudException("Error creating edge - target vertex with id " + target
-            + " does not exist in graph data base",
-            javax.ws.rs.core.Response.Status.BAD_REQUEST);
-      }
-
-      // Now, create the ChampRelationship object for our edge and store it in
-      // the graph database.
-      return edgeFromChampRelationship(
-          champApi.storeRelationship(
-              new ChampRelationship.Builder(sourceObject.get(), targetObject.get(), type)
-                  .properties(properties)
-                  .build()));
-
-    } catch (ChampMarshallingException
-        | ChampObjectNotExistsException
-        | ChampSchemaViolationException
-        | ChampRelationshipNotExistsException
-        | ChampUnmarshallingException | NumberFormatException | ChampTransactionException e) {
-
-      throw new CrudException("Error creating edge: " + e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
-
-
-  @Override
-  public List<Edge> getEdges(String type, Map<String, Object> filter) throws CrudException {
-
-    filter.put(ChampRelationship.ReservedPropertyKeys.CHAMP_RELATIONSHIP_TYPE.toString(), type);
-
-    Stream<ChampRelationship> retrievedRelationships;
-    try {
-      retrievedRelationships = champApi.queryRelationships(filter);
-      
-    } catch (ChampTransactionException e) {
-      throw new CrudException("Transaction error occured",
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-    
-    // Process the result stream from the Champ library into an Edge list, keeping only
-    // edges of the specified type.
-    List<Edge> edges = retrievedRelationships
-        .map(r -> edgeFromChampRelationship(r))
-        .collect(Collectors.toList());
-
-    return edges;
-  }
-
-  @Override
-  public Edge updateEdge(Edge edge) throws CrudException {
-
-    if (logger.isDebugEnabled()) {
-      logger.debug("Update edge with id: " + edge.getId() + " with properties: "
-          + propertiesMapToString(edge.getProperties()));
-    }
-
-    try {
-      // Now, build the updated version of the Champ Relationship...
-      ChampRelationship updateRelationship = new ChampRelationship.Builder(
-          buildChampObject(edge.getSource().getId().get(), edge.getSource().getType(),
-              edge.getSource().getProperties()),
-          buildChampObject(edge.getTarget().getId().get(), edge.getTarget().getType(),
-              edge.getTarget().getProperties()),
-          edge.getType()).key(getRelKey(edge.getId().get()))
-          .properties(edge.getProperties()).build();
-      // ...and send it to the Champ library.
-      return edgeFromChampRelationship(champApi.replaceRelationship(updateRelationship));
-
-
-    } catch (ChampRelationshipNotExistsException ex) {
-      throw new CrudException("Not Found", javax.ws.rs.core.Response.Status.NOT_FOUND);
-    } catch (NumberFormatException | 
-             ChampUnmarshallingException | 
-             ChampMarshallingException | 
-             ChampSchemaViolationException |
-             ChampTransactionException ex) {
-
-      throw new CrudException(ex.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    } 
-  }
-
-  @Override
-  public void deleteVertex(String id, String type) throws CrudException {
-
-    try {
-
-      // First, retrieve the vertex that we intend to delete.
-      Optional<ChampObject> retrievedVertex = champApi.retrieveObject(Long.parseLong(id));
-
-      // Did we find it?
-      if (!retrievedVertex.isPresent() || !retrievedVertex.get().getType().equals(type)) {
-        throw new CrudException("Failed to delete vertex with id: "
-            + id + " - vertex does not exist.",
-            javax.ws.rs.core.Response.Status.NOT_FOUND);
-      }
-
-      // Now, verify that there are no edges incident to the vertex (they must be deleted
-      // first if so).
-      Stream<ChampRelationship> relationships =
-          champApi.retrieveRelationships(retrievedVertex.get());
-
-      if (relationships.count() > 0) {
-        throw new CrudException("Attempt to delete vertex with id "
-            + id + " which has incident edges.",
-            javax.ws.rs.core.Response.Status.BAD_REQUEST);
-      }
-
-      // Finally, we can attempt to delete our vertex.
-      champApi.deleteObject(Long.parseLong(id));
-
-
-    } catch (NumberFormatException
-           | ChampUnmarshallingException
-           | ChampObjectNotExistsException 
-           | ChampTransactionException e) {
-
-      throw new CrudException(e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
-
-  @Override
-  public void deleteEdge(String id, String type) throws CrudException {
-
-    try {
-
-      // First, retrieve the edge that we want to delete.
-      Optional<ChampRelationship> relationshipToDelete
-          = champApi.retrieveRelationship(getRelKey(id));
-
-
-      // Did we find it?
-      if (!relationshipToDelete.isPresent() || !relationshipToDelete.get().getType().equals(type)) {
-        throw new CrudException("Failed to delete edge with id: " + id + " - edge does not exist",
-            javax.ws.rs.core.Response.Status.NOT_FOUND);
-      }
-
-      // Now we can delete the edge.
-      champApi.deleteRelationship(relationshipToDelete.get());
-
-    } catch (ChampRelationshipNotExistsException
-        | NumberFormatException
-        | ChampUnmarshallingException 
-        | ChampTransactionException e) {
-
-      throw new CrudException(e.getMessage(),
-          javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
-    }
-  }
-
-
-  /**
-   * This helper method generates a string representation of a properties map for
-   * logging purposes.
-   *
-   * @param properties - The properties map to be converted.
-   * @return - The log statement friendly conversion of the properties map.
-   */
-  private String propertiesMapToString(Map<String, Object> properties) {
-
-    StringBuilder sb = new StringBuilder();
-    sb.append("{");
-
-    for (String key : properties.keySet()) {
-      sb.append("(").append(key).append(" -> ").append(properties.get(key)).append(") ");
-    }
-
-    sb.append("}");
-
-    return sb.toString();
-  }
-
-
-  /**
-   * This helper method constructs a {@link ChampObject} suitable for passing to the Champ library.
-   *
-   * @param type       - The type to assign to our ChampObject
-   * @param properties - The set of properties to assign to our ChampObject
-   * @return - A populated ChampObject
-   */
-  private ChampObject buildChampObject(String type, Map<String, Object> properties) {
-
-    ObjectBuildOrPropertiesStep objectInProgress = ChampObject.create()
-        .ofType(type)
-        .withoutKey();
-
-    for (String key : properties.keySet()) {
-      objectInProgress.withProperty(key, properties.get(key));
-    }
-    return objectInProgress.build();
-  }
-
-
-  /**
-   * This helper method constructs a {@link ChampObject} suitable for passing to the Champ library.
-   *
-   * @param id         - Unique identifier for this object.
-   * @param type       - The type to assign to our ChampObject
-   * @param properties - The set of properties to assign to our ChampObject
-   * @return - A populated ChampObject
-   */
-  private ChampObject buildChampObject(String id, String type, Map<String, Object> properties) {
-
-    ObjectBuildOrPropertiesStep objectInProgress = ChampObject.create()
-        .ofType(type)
-        .withKey(Long.parseLong(id));
-
-    for (String key : properties.keySet()) {
-      objectInProgress.withProperty(key, properties.get(key));
-    }
-    return objectInProgress.build();
-  }
-
-
-  
-  
-  private Vertex vertexFromChampObject(ChampObject champObject, String type) {
-
-    // Get the identifier for this vertex from the Champ object.
-    Object id = champObject.getKey().orElse("");
-
-    // Start building our {@link Vertex} object.
-    Vertex.Builder vertexBuilder = new Vertex.Builder(type);
-    vertexBuilder.id(id.toString());
-
-    // Convert the properties associated with the Champ object into the form expected for
-    // a Vertex object.
-    for (String key : champObject.getProperties().keySet()) {
-      vertexBuilder.property(key, champObject.getProperties().get(key));
-    }
-
-    // ...and return it.
-    return vertexBuilder.build();
-  }
-
-
-  /**
-   * This helper method converts a {@link ChampRelationship} from the Champ library into an
-   * equivalent {@link Edge} object that is understood by the CRUD Service.
-   *
-   * @param relationship - The ChampRelationship object to be converted.
-   * @return - An Edge object corresponding to the supplied ChampRelationship
-   */
-  private Edge edgeFromChampRelationship(ChampRelationship relationship) {
-
-    // Populate the edge's id, if available.
-    Object relationshipId = relationship.getKey().orElse("");
-
-    Edge.Builder edgeBuilder = new Edge.Builder(relationship.getType())
-        .id(relationshipId.toString());
-    edgeBuilder.source(vertexFromChampObject(relationship.getSource(),
-        relationship.getSource().getProperties()
-            .get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()) == null
-                ? relationship.getSource().getType()
-                : relationship.getSource().getProperties()
-                    .get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()).toString()));
-    edgeBuilder.target(vertexFromChampObject(relationship.getTarget(),
-        relationship.getTarget().getProperties()
-            .get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()) == null
-                ? relationship.getTarget().getType()
-                : relationship.getTarget().getProperties()
-                    .get(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName()).toString()));
-
-    for (String key : relationship.getProperties().keySet()) {
-      edgeBuilder.property(key, relationship.getProperties().get(key).toString());
-    }
-
-    return edgeBuilder.build();
-  }
-
-  /**
-   * Performs any necessary shut down operations when the DAO is no longer needed.
-   */
-  public void close() {
-
-    if (champApi != null) {
-
-      logger.info(CrudServiceMsgs.STOPPING_CHAMP_DAO);
-
-      champApi.shutdown();
-    }
-  }
 }
diff --git a/src/main/java/org/openecomp/crud/dao/champion/ChampionDao.java b/src/main/java/org/openecomp/crud/dao/champion/ChampionDao.java
new file mode 100644
index 0000000..e1bda7a
--- /dev/null
+++ b/src/main/java/org/openecomp/crud/dao/champion/ChampionDao.java
@@ -0,0 +1,585 @@
+/**
+ * ============LICENSE_START=======================================================
+ * Gizmo
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.openecomp.crud.dao.champion;
+
+import net.dongliu.gson.GsonJava8TypeAdapterFactory;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.reflect.TypeToken;
+
+import org.apache.http.NameValuePair;
+import org.apache.http.client.utils.URLEncodedUtils;
+import org.apache.http.message.BasicNameValuePair;
+import org.eclipse.jetty.util.security.Password;
+import org.openecomp.aai.logging.LoggingContext;
+import org.openecomp.cl.api.Logger;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.crud.dao.GraphDao;
+import org.openecomp.crud.entity.Edge;
+import org.openecomp.crud.entity.Vertex;
+import org.openecomp.crud.exception.CrudException;
+import org.openecomp.crud.util.CrudServiceConstants;
+import org.openecomp.restclient.client.OperationResult;
+import org.openecomp.restclient.client.RestClient;
+import org.openecomp.restclient.enums.RestAuthenticationMode;
+import org.slf4j.MDC;
+
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+
+public class ChampionDao implements GraphDao {
+  private RestClient client;
+  private String baseUrl;
+
+  private static final String HEADER_FROM_APP = "X-FromAppId";
+  private static final String HEADER_TRANS_ID = "X-TransactionId";
+
+  private Logger logger = LoggerFactory.getInstance().getLogger(ChampionDao.class.getName());
+
+  // We use a custom vertex serializer for Champion because it expects "key" instead of "id"
+  private static final Gson championGson = new GsonBuilder()
+      .registerTypeAdapterFactory(new GsonJava8TypeAdapterFactory())
+      .registerTypeAdapter(Vertex.class, new ChampionVertexSerializer())
+      .registerTypeAdapter(Edge.class, new ChampionEdgeSerializer())
+      .create();
+
+  public ChampionDao(String championUrl, String certPassword) {
+    try {
+      client = new RestClient().authenticationMode(RestAuthenticationMode.SSL_CERT)
+          .validateServerHostname(false)
+          .validateServerCertChain(false)
+          .clientCertFile(CrudServiceConstants.CRD_CHAMPION_AUTH_FILE)
+          .clientCertPassword(Password.deobfuscate(certPassword));
+
+      baseUrl = championUrl;
+    } catch (Exception e) {
+      System.out.println("Error setting up Champion configuration");
+      e.printStackTrace();
+      System.exit(1);
+    }
+  }
+
+  @Override
+  public Vertex getVertex(String id) throws CrudException {
+    String url = baseUrl + "objects/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      return Vertex.fromJson(getResult.getResult());
+    } else {
+      // We didn't find a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public Vertex getVertex(String id, String type) throws CrudException {
+    String url = baseUrl + "objects/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      Vertex vert = Vertex.fromJson(getResult.getResult());
+
+      if (!vert.getType().equalsIgnoreCase(type)) {
+        // We didn't find a vertex with the supplied type, so just throw an exception.
+        throw new CrudException("No vertex with id " + id + "and type " + type + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+      }
+      return vert;
+    } else {
+      // We didn't find a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public List<Edge> getVertexEdges(String id) throws CrudException {
+    String url = baseUrl + "objects/relationships/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      return championGson.fromJson(getResult.getResult(), new TypeToken<List<Edge>>(){}.getType());
+    } else {
+      // We didn't find a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public List<Vertex> getVertices(String type, Map<String, Object> filter) throws CrudException {
+    filter.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+    String url = baseUrl + "objects/filter" + "?" +
+        URLEncodedUtils.format(convertToNameValuePair(filter), Charset.defaultCharset());
+
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      return championGson.fromJson(getResult.getResult(), new TypeToken<List<Vertex>>(){}.getType());
+    } else {
+      // We didn't find a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("No vertices found in graph for given filters", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public Edge getEdge(String id, String type) throws CrudException {
+    String url = baseUrl + "relationships/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      Edge edge = Edge.fromJson(getResult.getResult());
+
+      if (!edge.getType().equalsIgnoreCase(type)) {
+        // We didn't find an edge with the supplied type, so just throw an exception.
+        throw new CrudException("No edge with id " + id + "and type " + type + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+      }
+      return edge;
+    } else {
+      // We didn't find a edge with the supplied type, so just throw an exception.
+      throw new CrudException("No edge with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public List<Edge> getEdges(String type, Map<String, Object> filter) throws CrudException {
+    String url = baseUrl + "relationships/filter" + "?" +
+        URLEncodedUtils.format(convertToNameValuePair(filter), Charset.defaultCharset());
+
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      return championGson.fromJson(getResult.getResult(), new TypeToken<List<Edge>>(){}.getType());
+    } else {
+      // We didn't find a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("No edges found in graph for given filters", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public Vertex addVertex(String type, Map<String, Object> properties) throws CrudException {
+    String url = baseUrl + "objects";
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    // Add the aai_node_type so that AAI can read the data created by gizmo
+    // TODO: This probably shouldn't be here
+    properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+    Vertex.Builder insertVertexBuilder = new Vertex.Builder(type);
+    properties.forEach(insertVertexBuilder::property);
+    Vertex insertVertex = insertVertexBuilder.build();
+
+    OperationResult getResult = client.post(url, insertVertex.toJson(), headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.CREATED.getStatusCode()) {
+      return Vertex.fromJson(getResult.getResult());
+    } else {
+      // We didn't create a vertex with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to create vertex", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public Vertex updateVertex(String id, String type, Map<String, Object> properties) throws CrudException {
+    String url = baseUrl + "objects/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    // Add the aai_node_type so that AAI can read the data created by gizmo
+    // TODO: This probably shouldn't be here
+    properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+    Vertex.Builder insertVertexBuilder = new Vertex.Builder(type);
+    insertVertexBuilder.id(id);
+    properties.forEach(insertVertexBuilder::property);
+    Vertex insertVertex = insertVertexBuilder.build();
+
+    String payload = insertVertex.toJson(championGson);
+    OperationResult getResult = client.put(url, payload, headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.OK.getStatusCode()) {
+      return Vertex.fromJson(getResult.getResult());
+    } else {
+      // We didn't create a vertex with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to update vertex", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public void deleteVertex(String id, String type) throws CrudException {
+    String url = baseUrl + "objects/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.delete(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() != Response.Status.OK.getStatusCode()) {
+      // We didn't delete a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("Failed to delete vertex", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public Edge addEdge(String type, Vertex source, Vertex target, Map<String, Object> properties) throws CrudException {
+    String url = baseUrl + "relationships";
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    // Try requests to ensure source and target exist in Champion
+    Vertex dbSource = getVertex(source.getId().get(), source.getType());
+    Vertex dbTarget = getVertex(target.getId().get(), target.getType());
+
+    Edge.Builder insertEdgeBuilder = new Edge.Builder(type).source(dbSource).target(dbTarget);
+    properties.forEach(insertEdgeBuilder::property);
+    Edge insertEdge = insertEdgeBuilder.build();
+
+    String edgeJson = insertEdge.toJson(championGson);
+    OperationResult getResult = client.post(url, edgeJson, headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.CREATED.getStatusCode()) {
+      return Edge.fromJson(getResult.getResult());
+    } else {
+      // We didn't create an edge with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to create edge", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public Edge updateEdge(Edge edge) throws CrudException {
+    if (!edge.getId().isPresent())
+    {
+      throw new CrudException("Unable to identify edge: " + edge.toString(), Response.Status.BAD_REQUEST);
+    }
+    String url = baseUrl + "relationships/" + edge.getId().get();
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    String edgeJson = edge.toJson(championGson);
+    OperationResult getResult = client.put(url, edgeJson, headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.OK.getStatusCode()) {
+      return Edge.fromJson(getResult.getResult());
+    } else {
+      // We didn't create an edge with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to update edge", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public void deleteEdge(String id, String type) throws CrudException {
+    String url = baseUrl + "relationships/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.delete(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() != 200) {
+      // We didn't find an edge with the supplied type, so just throw an exception.
+      throw new CrudException("No edge with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public String openTransaction() {
+    String url = baseUrl + "transaction";
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.post(url, "", headers, MediaType.TEXT_PLAIN_TYPE, MediaType.TEXT_PLAIN_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      return getResult.getResult();
+    } else {
+      return null;
+    }
+  }
+
+  @Override
+  public void commitTransaction(String id) throws CrudException {
+    String url = baseUrl + "transaction/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.put(url, "{\"method\": \"commit\"}", headers, MediaType.APPLICATION_JSON_TYPE, MediaType.TEXT_PLAIN_TYPE);
+
+    if (getResult.getResultCode() != 200) {
+      throw new CrudException("Unable to commit transaction", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public void rollbackTransaction(String id) throws CrudException {
+    String url = baseUrl + "transaction/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.put(url, "{\"method\": \"rollback\"}", headers, MediaType.APPLICATION_JSON_TYPE, MediaType.TEXT_PLAIN_TYPE);
+
+    if (getResult.getResultCode() != 200) {
+      throw new CrudException("Unable to rollback transaction", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public boolean transactionExists(String id) throws CrudException {
+    String url = baseUrl + "transaction/" + id;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    return getResult.getResultCode() == 200;
+  }
+
+  @Override
+  public Vertex addVertex(String type, Map<String, Object> properties, String txId) throws CrudException {
+    String url = baseUrl + "objects?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    // Add the aai_node_type so that AAI can read the data created by gizmo
+    // TODO: This probably shouldn't be here
+    properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+    Vertex.Builder insertVertexBuilder = new Vertex.Builder(type);
+    properties.forEach(insertVertexBuilder::property);
+    Vertex insertVertex = insertVertexBuilder.build();
+
+    OperationResult getResult = client.post(url, insertVertex.toJson(), headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.CREATED.getStatusCode()) {
+      return Vertex.fromJson(getResult.getResult());
+    } else {
+      // We didn't create a vertex with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to create vertex", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public Edge addEdge(String type, Vertex source, Vertex target, Map<String, Object> properties, String txId) throws CrudException {
+    String url = baseUrl + "relationships?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    // Try requests to ensure source and target exist in Champion
+    Vertex dbSource = getVertex(source.getId().get(), source.getType(), txId);
+    Vertex dbTarget = getVertex(target.getId().get(), target.getType(), txId);
+
+    Edge.Builder insertEdgeBuilder = new Edge.Builder(type).source(dbSource).target(dbTarget);
+    properties.forEach(insertEdgeBuilder::property);
+    Edge insertEdge = insertEdgeBuilder.build();
+
+    OperationResult getResult = client.post(url, insertEdge.toJson(championGson), headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.CREATED.getStatusCode()) {
+      return Edge.fromJson(getResult.getResult());
+    } else {
+      // We didn't create an edge with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to create edge", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public Vertex updateVertex(String id, String type, Map<String, Object> properties, String txId) throws CrudException {
+    String url = baseUrl + "objects/" + id + "?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    // Add the aai_node_type so that AAI can read the data created by gizmo
+    // TODO: This probably shouldn't be here
+    properties.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
+
+    Vertex.Builder insertVertexBuilder = new Vertex.Builder(type);
+    insertVertexBuilder.id(id);
+    properties.forEach(insertVertexBuilder::property);
+    Vertex insertVertex = insertVertexBuilder.build();
+
+    String payload = insertVertex.toJson(championGson);
+    OperationResult getResult = client.put(url, payload, headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.OK.getStatusCode()) {
+      return Vertex.fromJson(getResult.getResult());
+    } else {
+      // We didn't create a vertex with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to update vertex", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public void deleteVertex(String id, String type, String txId) throws CrudException {
+    String url = baseUrl + "objects/" + id + "?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.delete(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() != Response.Status.OK.getStatusCode()) {
+      // We didn't delete a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("Failed to delete vertex", Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public Edge updateEdge(Edge edge, String txId) throws CrudException {
+    if (!edge.getId().isPresent())
+    {
+      throw new CrudException("Unable to identify edge: " + edge.toString(), Response.Status.BAD_REQUEST);
+    }
+    String url = baseUrl + "relationships/" + edge.getId().get() + "?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.put(url, edge.toJson(championGson), headers,
+        MediaType.APPLICATION_JSON_TYPE, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == Response.Status.OK.getStatusCode()) {
+      return Edge.fromJson(getResult.getResult());
+    } else {
+      // We didn't create an edge with the supplied type, so just throw an exception.
+      throw new CrudException("Failed to update edge: " + getResult.getFailureCause(), Response.Status.fromStatusCode(getResult.getResultCode()));
+    }
+  }
+
+  @Override
+  public void deleteEdge(String id, String type, String txId) throws CrudException {
+    String url = baseUrl + "relationships/" + id + "?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.delete(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() != 200) {
+      // We didn't find an edge with the supplied type, so just throw an exception.
+      throw new CrudException("No edge with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  @Override
+  public Edge getEdge(String id, String type, String txId) throws CrudException {
+    String url = baseUrl + "relationships/" + id + "?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      Edge edge = Edge.fromJson(getResult.getResult());
+
+      if (!edge.getType().equalsIgnoreCase(type)) {
+        // We didn't find an edge with the supplied type, so just throw an exception.
+        throw new CrudException("No edge with id " + id + "and type " + type + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+      }
+      return edge;
+    } else {
+      // We didn't find an edge with the supplied id, so just throw an exception.
+      throw new CrudException("No edge with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  public Vertex getVertex(String id, String type, String txId) throws CrudException {
+    String url = baseUrl + "objects/" + id + "?transactionId=" + txId;
+    Map<String, List<String>> headers = new HashMap<>();
+    headers.put(HEADER_FROM_APP, Arrays.asList("Gizmo"));
+    headers.put(HEADER_TRANS_ID, Arrays.asList(MDC.get(LoggingContext.LoggingField.REQUEST_ID.toString())));
+
+    OperationResult getResult = client.get(url, headers, MediaType.APPLICATION_JSON_TYPE);
+
+    if (getResult.getResultCode() == 200) {
+      Vertex vert = Vertex.fromJson(getResult.getResult());
+
+      if (!vert.getType().equalsIgnoreCase(type)) {
+        // We didn't find a vertex with the supplied type, so just throw an exception.
+        throw new CrudException("No vertex with id " + id + "and type " + type + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+      }
+      return vert;
+    } else {
+      // We didn't find a vertex with the supplied id, so just throw an exception.
+      throw new CrudException("No vertex with id " + id + " found in graph", javax.ws.rs.core.Response.Status.NOT_FOUND);
+    }
+  }
+
+  // https://stackoverflow.com/questions/26942330/convert-mapstring-string-to-listnamevaluepair-is-this-the-most-efficient
+  private List<NameValuePair> convertToNameValuePair(Map<String, Object> pairs) {
+    List<NameValuePair> nvpList = new ArrayList<>(pairs.size());
+
+    pairs.forEach((key, value) -> nvpList.add(new BasicNameValuePair(key, value.toString())));
+
+    return nvpList;
+  }
+}
diff --git a/src/main/java/org/openecomp/crud/dao/champion/ChampionEdgeSerializer.java b/src/main/java/org/openecomp/crud/dao/champion/ChampionEdgeSerializer.java
new file mode 100644
index 0000000..5ca6c2c
--- /dev/null
+++ b/src/main/java/org/openecomp/crud/dao/champion/ChampionEdgeSerializer.java
@@ -0,0 +1,49 @@
+/**
+ * ============LICENSE_START=======================================================
+ * Gizmo
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.openecomp.crud.dao.champion;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+
+import org.openecomp.crud.entity.Edge;
+import org.openecomp.crud.entity.Vertex;
+
+import java.lang.reflect.Type;
+
+public class ChampionEdgeSerializer implements JsonSerializer<Edge> {
+  @Override
+  public JsonElement serialize(Edge edge, Type type, JsonSerializationContext jsonSerializationContext) {
+    final JsonObject edgeObj = new JsonObject();
+    if (edge.getId().isPresent()) {
+      edgeObj.add("key", jsonSerializationContext.serialize(edge.getId().get()));
+    }
+    edgeObj.add("type", jsonSerializationContext.serialize(edge.getType()));
+    edgeObj.add("properties", jsonSerializationContext.serialize(edge.getProperties()));
+    edgeObj.add("source", jsonSerializationContext.serialize(edge.getSource()));
+    edgeObj.add("target", jsonSerializationContext.serialize(edge.getTarget()));
+    return edgeObj;
+  }
+}
diff --git a/src/main/java/org/openecomp/crud/dao/champion/ChampionVertexSerializer.java b/src/main/java/org/openecomp/crud/dao/champion/ChampionVertexSerializer.java
new file mode 100644
index 0000000..ab743d7
--- /dev/null
+++ b/src/main/java/org/openecomp/crud/dao/champion/ChampionVertexSerializer.java
@@ -0,0 +1,47 @@
+/**
+ * ============LICENSE_START=======================================================
+ * Gizmo
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.openecomp.crud.dao.champion;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonSerializationContext;
+import com.google.gson.JsonSerializer;
+
+import org.openecomp.crud.entity.Vertex;
+
+import java.lang.reflect.Type;
+
+public class ChampionVertexSerializer implements JsonSerializer<Vertex> {
+  @Override
+  public JsonElement serialize(Vertex vertex, Type type, JsonSerializationContext jsonSerializationContext) {
+    final JsonObject vertexObj = new JsonObject();
+    if (vertex.getId().isPresent()) {
+      vertexObj.add("key", jsonSerializationContext.serialize(vertex.getId().get()));
+    }
+    vertexObj.add("type", jsonSerializationContext.serialize(vertex.getType()));
+    vertexObj.add("properties", jsonSerializationContext.serialize(vertex.getProperties()));
+
+    return vertexObj;
+  }
+}
diff --git a/src/main/java/org/openecomp/crud/entity/Edge.java b/src/main/java/org/openecomp/crud/entity/Edge.java
index 803511f..ceae494 100644
--- a/src/main/java/org/openecomp/crud/entity/Edge.java
+++ b/src/main/java/org/openecomp/crud/entity/Edge.java
@@ -23,16 +23,22 @@
  */
 package org.openecomp.crud.entity;
 
+import net.dongliu.gson.GsonJava8TypeAdapterFactory;
+
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
+import com.google.gson.annotations.SerializedName;
 
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
 
 public class Edge {
-  private static final Gson gson = new GsonBuilder().create();
+  private static final Gson gson = new GsonBuilder()
+      .registerTypeAdapterFactory(new GsonJava8TypeAdapterFactory())
+      .create();
 
+  @SerializedName(value="id", alternate={"key"})
   private final Optional<String> id;
   private final String type;
   private final Map<String, Object> properties;
@@ -106,6 +112,14 @@ public class Edge {
     return gson.toJson(this);
   }
 
+  public String toJson(Gson customGson) {
+    return customGson.toJson(this);
+  }
+
+  public static Edge fromJson(String jsonString) {
+    return gson.fromJson(jsonString, Edge.class);
+  }
+
   public Optional<String> getId() {
     return id;
   }
diff --git a/src/main/java/org/openecomp/crud/entity/Vertex.java b/src/main/java/org/openecomp/crud/entity/Vertex.java
index 1b0b97d..d2f2b08 100644
--- a/src/main/java/org/openecomp/crud/entity/Vertex.java
+++ b/src/main/java/org/openecomp/crud/entity/Vertex.java
@@ -23,17 +23,23 @@
  */
 package org.openecomp.crud.entity;
 
+import net.dongliu.gson.GsonJava8TypeAdapterFactory;
+
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
+import com.google.gson.annotations.SerializedName;
 
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Optional;
 
 public class Vertex {
-  private static final Gson gson = new GsonBuilder().create();
+  private static final Gson gson = new GsonBuilder()
+      .registerTypeAdapterFactory(new GsonJava8TypeAdapterFactory()).create();
 
+  @SerializedName(value="id", alternate={"key"})
   private final Optional<String> id;
+
   private final String type;
   private final Map<String, Object> properties;
 
@@ -82,6 +88,14 @@ public class Vertex {
     return gson.toJson(this);
   }
 
+  public String toJson(Gson customGson) {
+    return customGson.toJson(this);
+  }
+
+  public static Vertex fromJson(String jsonString) {
+    return gson.fromJson(jsonString, Vertex.class);
+  }
+
   @Override
   public String toString() {
     return "Vertex [id=" + id + ", type=" + type + ", properties=" + properties + "]";
diff --git a/src/main/java/org/openecomp/crud/logging/CrudServiceMsgs.java b/src/main/java/org/openecomp/crud/logging/CrudServiceMsgs.java
index 265f327..98cc4fa 100644
--- a/src/main/java/org/openecomp/crud/logging/CrudServiceMsgs.java
+++ b/src/main/java/org/openecomp/crud/logging/CrudServiceMsgs.java
@@ -43,6 +43,7 @@ public enum CrudServiceMsgs implements LogMessageEnum {
   INVALID_OXM_FILE,
   INVALID_OXM_DIR,
   OXM_FILE_CHANGED,
+  TRANSACTION,
 
   /**
    * Successfully loaded schema: {0}
diff --git a/src/main/java/org/openecomp/crud/logging/LoggingUtil.java b/src/main/java/org/openecomp/crud/logging/LoggingUtil.java
index aaa250a..2ef2772 100644
--- a/src/main/java/org/openecomp/crud/logging/LoggingUtil.java
+++ b/src/main/java/org/openecomp/crud/logging/LoggingUtil.java
@@ -81,7 +81,7 @@ public class LoggingUtil {
         (req != null) ? req.getMethod() : "Unknown",
         (req != null) ? req.getRequestURL().toString() : "Unknown",
         (req != null) ? req.getRemoteHost() : "Unknown",
-        Integer.toString(response.getStatus()) + " error: " + (response.getEntity() == null ? ""
+        Integer.toString(response.getStatus()) + " payload: " + (response.getEntity() == null ? ""
             : response.getEntity().toString()));
     MDC.clear();
   }
diff --git a/src/main/java/org/openecomp/crud/parser/CrudResponseBuilder.java b/src/main/java/org/openecomp/crud/parser/CrudResponseBuilder.java
index 1a84322..308583d 100644
--- a/src/main/java/org/openecomp/crud/parser/CrudResponseBuilder.java
+++ b/src/main/java/org/openecomp/crud/parser/CrudResponseBuilder.java
@@ -23,20 +23,27 @@
  */
 package org.openecomp.crud.parser;
 
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.JsonArray;
-import com.google.gson.JsonObject;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javax.ws.rs.core.Response.Status;
 
 import org.openecomp.crud.entity.Edge;
 import org.openecomp.crud.entity.Vertex;
 import org.openecomp.crud.exception.CrudException;
+import org.openecomp.crud.service.BulkPayload;
 import org.openecomp.crud.service.EdgePayload;
 import org.openecomp.crud.service.VertexPayload;
 import org.openecomp.schema.RelationshipSchemaLoader;
 
-import java.util.ArrayList;
-import java.util.List;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
 
 public class CrudResponseBuilder {
 
@@ -45,6 +52,42 @@ public class CrudResponseBuilder {
   public static final String SOURCE = "source";
   public static final String TARGET = "target";
   public static final String URL_BASE = "services/inventory/";
+  
+  public static String buildUpsertBulkResponse(HashMap<String,Vertex> vertices, HashMap<String,Edge> edges , String version,BulkPayload incomingPayload)
+	      throws CrudException {
+	  
+		for (JsonElement e : incomingPayload.getObjects()) {
+			List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(e.getAsJsonObject().entrySet());
+
+			Map.Entry<String, JsonElement> item = entries.get(1);
+			
+			Vertex responseVertex = vertices.get(item.getKey());
+			if(responseVertex != null){
+			JsonObject v = gson.fromJson(buildUpsertVertexResponse(responseVertex,version), JsonObject.class);
+			item.setValue(v);
+			}else{
+				item.setValue(gson.fromJson("{}", JsonObject.class));
+			}
+			
+		}
+		for (JsonElement e : incomingPayload.getRelationships()) {
+			List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(e.getAsJsonObject().entrySet());
+
+			Map.Entry<String, JsonElement> item = entries.get(1);
+			
+			Edge responseEdge = edges.get(item.getKey());
+			if(responseEdge != null){
+			JsonObject v = gson.fromJson(buildUpsertEdgeResponse(responseEdge,version), JsonObject.class);
+			item.setValue(v);
+			}else{
+				item.setValue(gson.fromJson("{}", JsonObject.class));
+			}
+			
+		}
+	    return incomingPayload.toJson();
+	  }
+  
+  
 
   public static String buildUpsertVertexResponse(Vertex vertex, String version)
       throws CrudException {
diff --git a/src/main/java/org/openecomp/crud/service/BulkPayload.java b/src/main/java/org/openecomp/crud/service/BulkPayload.java
new file mode 100644
index 0000000..28cf420
--- /dev/null
+++ b/src/main/java/org/openecomp/crud/service/BulkPayload.java
@@ -0,0 +1,128 @@
+/**
+ * ============LICENSE_START=======================================================
+ * Gizmo
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.openecomp.crud.service;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+
+import org.openecomp.crud.exception.CrudException;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javax.ws.rs.core.Response.Status;
+
+public class BulkPayload {
+	public enum OperationType {
+		CREATE, UPDATE, DELETE
+	}
+
+	  
+	  
+	private List<JsonElement> objects = new ArrayList<JsonElement>();
+	private List<JsonElement> relationships = new ArrayList<JsonElement>();
+
+	private static final Gson gson = new GsonBuilder().disableHtmlEscaping().create();
+
+	public String toJson() {
+		return gson.toJson(this);
+	}
+
+	public static BulkPayload fromJson(String payload) throws CrudException {
+		try {
+			if (payload == null || payload.isEmpty()) {
+				throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
+			}
+			return gson.fromJson(payload, BulkPayload.class);
+		} catch (Exception ex) {
+			throw new CrudException("Invalid Json Payload", Status.BAD_REQUEST);
+		}
+	}
+
+	public List<JsonElement> getObjects() {
+		return objects;
+	}
+
+	public void setObjects(List<JsonElement> objects) {
+		this.objects = objects;
+	}
+
+	public List<JsonElement> getRelationships() {
+		return relationships;
+	}
+
+	public void setRelationships(List<JsonElement> relationships) {
+		this.relationships = relationships;
+	}
+
+	@Override
+	public String toString() {
+		return "BulkPayload [objects=" + objects + ", relationships=" + relationships + "]";
+	}
+	
+	public static void main(String[] args)  throws Exception {
+		BulkPayload p = new BulkPayload();
+		JsonObject root = new JsonObject();
+		JsonArray vertices = new JsonArray();
+		JsonObject v1 = new JsonObject();
+		JsonObject v2 = new JsonObject();
+		JsonObject prop = new JsonObject();
+		
+		prop.addProperty("p1","value1");
+		prop.addProperty("p2","value2");
+		v1.add("v1", prop);
+		v2.add("v2",prop);
+		
+		vertices.add(v1);
+		vertices.add(v2);
+		
+		
+		root.add("objects", vertices);
+		
+		String s = "{\"objects\":[{\"v1\":{\"p1\":\"value1\",\"p2\":\"value2\"}},{\"v2\":{\"p1\":\"value1\",\"p2\":\"value2\"}}]}";
+		
+		p = BulkPayload.fromJson(s);
+		
+		List<JsonElement> po = p.getObjects();
+		List<String> ids = new ArrayList<String>();
+		for (JsonElement e : po){
+			Set<Map.Entry<String, JsonElement>> entries = e.getAsJsonObject().entrySet();
+
+			for (Map.Entry<String, JsonElement> entry : entries) {
+				ids.add(entry.getKey());
+			}
+		}
+		
+		
+		System.out.println("root: " + root.toString());
+		System.out.println("payload ids: " + ids.toString());
+		
+	}
+
+}
\ No newline at end of file
diff --git a/src/main/java/org/openecomp/crud/service/CrudGraphDataService.java b/src/main/java/org/openecomp/crud/service/CrudGraphDataService.java
index f38fe0f..c6b6a48 100644
--- a/src/main/java/org/openecomp/crud/service/CrudGraphDataService.java
+++ b/src/main/java/org/openecomp/crud/service/CrudGraphDataService.java
@@ -23,11 +23,19 @@
  */
 package org.openecomp.crud.service;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.ws.rs.core.Response.Status;
+
 import org.onap.aaiutils.oxm.OxmModelLoader;
 import org.openecomp.aai.champcore.ChampGraph;
 import org.openecomp.crud.dao.GraphDao;
 import org.openecomp.crud.dao.champ.ChampDao;
 import org.openecomp.crud.entity.Edge;
+
 import org.openecomp.crud.entity.Vertex;
 import org.openecomp.crud.exception.CrudException;
 import org.openecomp.crud.parser.CrudResponseBuilder;
@@ -35,32 +43,149 @@ import org.openecomp.schema.OxmModelValidator;
 import org.openecomp.schema.RelationshipSchemaLoader;
 import org.openecomp.schema.RelationshipSchemaValidator;
 
-import java.util.List;
-import java.util.Map;
+import com.google.gson.JsonElement;
 
 public class CrudGraphDataService {
 
   private GraphDao dao;
 
   public CrudGraphDataService(ChampGraph graphImpl) throws CrudException {
+	  this.dao = new ChampDao(graphImpl);
+
+	  loadModels();
+	}
 
-	this.dao = new ChampDao(graphImpl);
 
-    //load the schemas
-    try {
+	public CrudGraphDataService(GraphDao dao) throws CrudException {
+  	this.dao = dao;
+
+		loadModels();
+	}
+
+	private void loadModels() throws CrudException {
+		//load the schemas
+		try {
       OxmModelLoader.loadModels();
     } catch (Exception e) {
       throw new CrudException(e);
     }
-    RelationshipSchemaLoader.loadModels();
-  }
-
+		RelationshipSchemaLoader.loadModels();
+	}
 
   public String addVertex(String version, String type, VertexPayload payload) throws CrudException {
     Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, type,
         payload.getProperties());
     return addVertex(version, vertex);
   }
+  
+	public String addBulk(String version, BulkPayload payload) throws CrudException {
+		HashMap<String, Vertex> vertices = new HashMap<String, Vertex>();
+		HashMap<String, Edge> edges = new HashMap<String, Edge>();
+		String txId = dao.openTransaction();
+		try {
+			// Handle vertices
+			for (JsonElement v : payload.getObjects()) {
+				List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(v.getAsJsonObject().entrySet());
+
+				if (entries.size() != 2) {
+					throw new CrudException("", Status.BAD_REQUEST);
+				}
+				Map.Entry<String, JsonElement> opr = entries.get(0);
+				Map.Entry<String, JsonElement> item = entries.get(1);
+
+				VertexPayload vertexPayload = VertexPayload.fromJson(item.getValue().getAsJsonObject().toString());
+
+				if (opr.getValue().getAsString().equalsIgnoreCase("add") || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
+					Vertex validatedVertex;
+					Vertex persistedVertex;
+					if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
+						validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, vertexPayload.getType(),
+								vertexPayload.getProperties());
+						// Call champDAO to add the vertex
+						persistedVertex = dao.addVertex(validatedVertex.getType(), validatedVertex.getProperties(), txId);
+					} else {
+						validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(vertexPayload.getId(), version, vertexPayload.getType(),
+								vertexPayload.getProperties());
+						// Call champDAO to update the vertex
+						persistedVertex = dao.updateVertex(vertexPayload.getId(), validatedVertex.getType(), validatedVertex.getProperties(), txId);
+					}
+
+					Vertex outgoingVertex = OxmModelValidator.validateOutgoingPayload(version, persistedVertex);
+
+					vertices.put(item.getKey(), outgoingVertex);
+
+				} else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
+					dao.deleteVertex(vertexPayload.getId(), OxmModelValidator.resolveCollectionType(version, vertexPayload.getType()), txId);
+				}
+
+			}
+			// Handle Edges
+			for (JsonElement v : payload.getRelationships()) {
+				List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(v.getAsJsonObject().entrySet());
+
+				if (entries.size() != 2) {
+					throw new CrudException("", Status.BAD_REQUEST);
+				}
+				Map.Entry<String, JsonElement> opr = entries.get(0);
+				Map.Entry<String, JsonElement> item = entries.get(1);
+
+				EdgePayload edgePayload = EdgePayload.fromJson(item.getValue().getAsJsonObject().toString());
+
+				if (opr.getValue().getAsString().equalsIgnoreCase("add") || opr.getValue().getAsString().equalsIgnoreCase("modify")) {
+					Edge validatedEdge;
+					Edge persistedEdge;
+					if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
+						// Fix the source/detination
+						if (edgePayload.getSource().startsWith("$")) {
+							Vertex source = vertices.get(edgePayload.getSource().substring(1));
+							if (source == null) {
+								throw new CrudException("Not able to find vertex: " + edgePayload.getSource().substring(1), Status.INTERNAL_SERVER_ERROR);
+							}
+							edgePayload.setSource("services/inventory/" + version + "/" + source.getType() + "/" + source.getId().get());
+						}
+						if (edgePayload.getTarget().startsWith("$")) {
+							Vertex target = vertices.get(edgePayload.getTarget().substring(1));
+							if (target == null) {
+								throw new CrudException("Not able to find vertex: " + edgePayload.getTarget().substring(1), Status.INTERNAL_SERVER_ERROR);
+							}
+							edgePayload.setTarget("services/inventory/" + version + "/" + target.getType() + "/" + target.getId().get());
+						}
+						validatedEdge = RelationshipSchemaValidator.validateIncomingAddPayload(version, edgePayload.getType(), edgePayload);
+						persistedEdge = dao.addEdge(validatedEdge.getType(), validatedEdge.getSource(), validatedEdge.getTarget(),
+								validatedEdge.getProperties(), txId);
+					} else {
+						Edge edge = dao.getEdge(edgePayload.getId(), edgePayload.getType(), txId);
+						validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, edgePayload);
+						persistedEdge = dao.updateEdge(edge, txId);
+					}
+
+					Edge outgoingEdge = RelationshipSchemaValidator.validateOutgoingPayload(version, persistedEdge);
+
+					edges.put(item.getKey(), outgoingEdge);
+
+				} else if (opr.getValue().getAsString().equalsIgnoreCase("delete")) {
+					RelationshipSchemaValidator.validateType(version, edgePayload.getType());
+					dao.deleteEdge(edgePayload.getId(), edgePayload.getType(), txId);
+				}
+
+			}
+			// close champ TX
+			dao.commitTransaction(txId);
+		} catch (CrudException ex) {
+			dao.rollbackTransaction(txId);
+			throw ex;
+		} catch (Exception ex) {
+			dao.rollbackTransaction(txId);
+			throw ex;
+		} finally {
+			if (dao.transactionExists(txId)) {
+				dao.rollbackTransaction(txId);
+			}
+		}
+		
+
+		return CrudResponseBuilder.buildUpsertBulkResponse(vertices, edges, version, payload);
+	}
 
   private String addVertex(String version, Vertex vertex) throws CrudException {
     Vertex addedVertex = dao.addVertex(vertex.getType(), vertex.getProperties());
@@ -182,5 +307,7 @@ public class CrudGraphDataService {
         type, filter));
     return CrudResponseBuilder.buildGetVerticesResponse(items, version);
   }
+  
+  
 
 }
diff --git a/src/main/java/org/openecomp/crud/service/CrudRestService.java b/src/main/java/org/openecomp/crud/service/CrudRestService.java
index bef7b04..8a9f1c0 100644
--- a/src/main/java/org/openecomp/crud/service/CrudRestService.java
+++ b/src/main/java/org/openecomp/crud/service/CrudRestService.java
@@ -23,20 +23,13 @@
  */
 package org.openecomp.crud.service;
 
-import org.apache.cxf.jaxrs.ext.PATCH;
-import org.openecomp.auth.Auth;
-import org.openecomp.cl.api.Logger;
-import org.openecomp.cl.eelf.LoggerFactory;
-import org.openecomp.crud.exception.CrudException;
-import org.openecomp.crud.logging.CrudServiceMsgs;
-import org.openecomp.crud.logging.LoggingUtil;
-import org.openecomp.crud.util.CrudServiceConstants;
-import org.slf4j.MDC;
-
 import java.security.cert.X509Certificate;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
+
 import javax.security.auth.x500.X500Principal;
 import javax.servlet.http.HttpServletRequest;
 import javax.ws.rs.Consumes;
@@ -55,6 +48,18 @@ import javax.ws.rs.core.Response;
 import javax.ws.rs.core.Response.Status;
 import javax.ws.rs.core.UriInfo;
 
+import org.apache.cxf.jaxrs.ext.PATCH;
+import org.openecomp.auth.Auth;
+import org.openecomp.cl.api.Logger;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.crud.exception.CrudException;
+import org.openecomp.crud.logging.CrudServiceMsgs;
+import org.openecomp.crud.logging.LoggingUtil;
+import org.openecomp.crud.util.CrudServiceConstants;
+import org.slf4j.MDC;
+
+import com.google.gson.JsonElement;
+
 public class CrudRestService {
 
   private CrudGraphDataService crudGraphDataService;
@@ -222,21 +227,6 @@ public class CrudRestService {
   }
 
   @PUT
-  @Path("/relationships/{version}/{type}/")
-  @Consumes({MediaType.APPLICATION_JSON})
-  @Produces({MediaType.APPLICATION_JSON})
-  public Response updateEdgeWithoutId(String content, @Context HttpHeaders headers, @Context HttpServletRequest req) {
-
-    LoggingUtil.initMdcContext(req, headers);
-
-    logger.debug("Incoming request..." + content);
-    Response response = Response.status (Status.BAD_REQUEST).entity ("Cannot Update Edge Without Specifying Id in URL").build();
-
-    LoggingUtil.logRestRequest(logger, auditLogger, req, response);
-    return response;
-  }
-
-  @PUT
   @Path("/relationships/{version}/{type}/{id}")
   @Consumes({MediaType.APPLICATION_JSON})
   @Produces({MediaType.APPLICATION_JSON})
@@ -463,6 +453,142 @@ public class CrudRestService {
     LoggingUtil.logRestRequest(logger, auditLogger, req, response);
     return response;
   }
+  
+	private void validateBulkPayload(BulkPayload payload) throws CrudException {
+		List<String> vertices = new ArrayList<String>();
+		List<String> edges = new ArrayList<String>();
+
+		for (JsonElement v : payload.getObjects()) {
+			List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(v.getAsJsonObject().entrySet());
+
+			if (entries.size() != 2) {
+				throw new CrudException("", Status.BAD_REQUEST);
+			}
+			Map.Entry<String, JsonElement> opr = entries.get(0);
+			Map.Entry<String, JsonElement> item = entries.get(1);
+
+			if (vertices.contains(item.getKey())) {
+				throw new CrudException("duplicate vertex in payload: " + item.getKey(), Status.BAD_REQUEST);
+			}
+			VertexPayload vertexPayload = VertexPayload.fromJson(item.getValue().getAsJsonObject().toString());
+			if (vertexPayload.getType() == null) {
+				throw new CrudException("Vertex Type cannot be null for: " + item.getKey(), Status.BAD_REQUEST);
+			}
+
+			if (!opr.getKey().equalsIgnoreCase("operation")) {
+				throw new CrudException("operation missing in item: " + item.getKey(), Status.BAD_REQUEST);
+			}
+
+			if (!opr.getValue().getAsString().equalsIgnoreCase("add") && !opr.getValue().getAsString().equalsIgnoreCase("modify")
+					&& !opr.getValue().getAsString().equalsIgnoreCase("delete")) {
+				throw new CrudException("Invalid operation at item: " + item.getKey(), Status.BAD_REQUEST);
+			}
+			// check if ID is populate for modify/delete operation
+			if ((opr.getValue().getAsString().equalsIgnoreCase("modify") || opr.getValue().getAsString().equalsIgnoreCase("delete"))
+					&& (vertexPayload.getId() == null)) {
+
+				throw new CrudException("Mising ID at item: " + item.getKey(), Status.BAD_REQUEST);
+
+			}
+
+			vertices.add(item.getKey());
+		}
+
+		for (JsonElement v : payload.getRelationships()) {
+			List<Map.Entry<String, JsonElement>> entries = new ArrayList<Map.Entry<String, JsonElement>>(v.getAsJsonObject().entrySet());
+
+			if (entries.size() != 2) {
+				throw new CrudException("", Status.BAD_REQUEST);
+			}
+			Map.Entry<String, JsonElement> opr = entries.get(0);
+			Map.Entry<String, JsonElement> item = entries.get(1);
+
+			if (edges.contains(item.getKey())) {
+				throw new CrudException("duplicate Edge in payload: " + item.getKey(), Status.BAD_REQUEST);
+			}
+
+			EdgePayload edgePayload = EdgePayload.fromJson(item.getValue().getAsJsonObject().toString());
+
+			if (edgePayload.getType() == null) {
+				throw new CrudException("Edge Type cannot be null for: " + item.getKey(), Status.BAD_REQUEST);
+			}
+
+			if (!opr.getKey().equalsIgnoreCase("operation")) {
+				throw new CrudException("operation missing in item: " + item.getKey(), Status.BAD_REQUEST);
+			}
+
+			if (!opr.getValue().getAsString().equalsIgnoreCase("add") && !opr.getValue().getAsString().equalsIgnoreCase("modify")
+					&& !opr.getValue().getAsString().equalsIgnoreCase("delete")) {
+				throw new CrudException("Invalid operation at item: " + item.getKey(), Status.BAD_REQUEST);
+			}
+			// check if ID is populate for modify/delete operation
+			if ((edgePayload.getId() == null) && (opr.getValue().getAsString().equalsIgnoreCase("modify")
+					    || opr.getValue().getAsString().equalsIgnoreCase("delete"))) {
+
+				throw new CrudException("Mising ID at item: " + item.getKey(), Status.BAD_REQUEST);
+
+			}
+			if (opr.getValue().getAsString().equalsIgnoreCase("add")) {
+				if(edgePayload.getSource()==null || edgePayload.getTarget()==null){
+					throw new CrudException("Source/Target cannot be null for edge: " + item.getKey(),
+							Status.BAD_REQUEST);
+				}
+				if (edgePayload.getSource().startsWith("$") && !vertices.contains(edgePayload.getSource().substring(1))) {
+					throw new CrudException("Source Vertex " + edgePayload.getSource().substring(1) + " not found for Edge: " + item.getKey(),
+							Status.BAD_REQUEST);
+				}
+
+				if (edgePayload.getTarget().startsWith("$") && !vertices.contains(edgePayload.getTarget().substring(1))) {
+					throw new CrudException("Target Vertex " + edgePayload.getSource().substring(1) + " not found for Edge: " + item.getKey(),
+							Status.BAD_REQUEST);
+				}
+			}
+			edges.add(item.getKey());
+
+		}
+
+	}
+  
+  @POST
+  @Path("/{version}/bulk/")
+  @Consumes({MediaType.APPLICATION_JSON})
+  @Produces({MediaType.APPLICATION_JSON})
+  public Response addBulk(String content, @PathParam("version") String version,
+                            @PathParam("type") String type, @PathParam("uri") @Encoded String uri,
+                            @Context HttpHeaders headers, @Context UriInfo uriInfo,
+                            @Context HttpServletRequest req) {
+
+    LoggingUtil.initMdcContext(req, headers);
+
+    logger.debug("Incoming request..." + content);
+    Response response = null;
+
+    if (validateRequest(req, uri, content, Action.POST,
+        CrudServiceConstants.CRD_AUTH_POLICY_NAME)) {
+
+      try {
+        BulkPayload payload = BulkPayload.fromJson(content);
+				if ((payload.getObjects() == null && payload.getRelationships() == null) || (payload.getObjects() != null && payload.getObjects().isEmpty()
+						&& payload.getRelationships() != null && payload.getRelationships().isEmpty())) {
+          throw new CrudException("Invalid request Payload", Status.BAD_REQUEST);
+        }
+				
+		validateBulkPayload(payload);
+        String result = crudGraphDataService.addBulk(version,  payload);
+        response = Response.status(Status.OK).entity(result).type(mediaType).build();
+      } catch (CrudException ce) {
+        response = Response.status(ce.getHttpStatus()).entity(ce.getMessage()).build();
+      } catch (Exception e) {
+        response = Response.status(Status.INTERNAL_SERVER_ERROR).entity(e.getMessage()).build();
+      }
+    } else {
+      response = Response.status(Status.FORBIDDEN).entity(content)
+          .type(MediaType.APPLICATION_JSON).build();
+    }
+
+    LoggingUtil.logRestRequest(logger, auditLogger, req, response);
+    return response;
+  }
 
   @POST
   @Path("/{version}/")
@@ -637,20 +763,6 @@ public class CrudRestService {
   }
 
   @DELETE
-  @Path("/relationships/{version}/{type}/")
-  @Consumes({MediaType.APPLICATION_JSON})
-  @Produces({MediaType.APPLICATION_JSON})
-  public Response deleteEdgeWithouId(String content, @Context HttpHeaders headers, @Context HttpServletRequest req) {
-
-    LoggingUtil.initMdcContext(req, headers);
-
-    logger.debug("Incoming request..." + content);
-    Response response = Response.status ( Status.BAD_REQUEST ).entity ( "Cannot Delete Edge Without Specifying Id in URL" ).build ();
-    LoggingUtil.logRestRequest(logger, auditLogger, req, response);
-    return response;
-  }
-
-  @DELETE
   @Path("/relationships/{version}/{type}/{id}")
   @Consumes({MediaType.APPLICATION_JSON})
   @Produces({MediaType.APPLICATION_JSON})
diff --git a/src/main/java/org/openecomp/crud/util/CrudServiceConstants.java b/src/main/java/org/openecomp/crud/util/CrudServiceConstants.java
index 9543e2d..1a4858f 100644
--- a/src/main/java/org/openecomp/crud/util/CrudServiceConstants.java
+++ b/src/main/java/org/openecomp/crud/util/CrudServiceConstants.java
@@ -43,6 +43,7 @@ public class CrudServiceConstants {
 
   public static final String CRD_CONFIG_FILE = CRD_SPECIFIC_CONFIG + "crud-api.properties";
   public static final String CRD_AUTH_FILE = CRD_HOME_AUTH + "crud_policy.json";
+  public static final String CRD_CHAMPION_AUTH_FILE = CRD_HOME_AUTH + "champion-cert.p12";
 
   public static final String CRD_AUTH_POLICY_NAME = "crud";
 
diff --git a/src/main/java/org/openecomp/schema/OxmModelValidator.java b/src/main/java/org/openecomp/schema/OxmModelValidator.java
index 0ae3e13..e51b23f 100644
--- a/src/main/java/org/openecomp/schema/OxmModelValidator.java
+++ b/src/main/java/org/openecomp/schema/OxmModelValidator.java
@@ -163,6 +163,7 @@ public class OxmModelValidator {
           CaseFormat.LOWER_HYPHEN.to(CaseFormat.UPPER_CAMEL, type));
 
       final DynamicType modelObjectType = jaxbContext.getDynamicType(modelObjectClass);
+      final DynamicType reservedType = jaxbContext.getDynamicType("ReservedPropNames");
 
       Set<Map.Entry<String, JsonElement>> payloadEntriesSet = properties.getAsJsonObject()
           .entrySet();
@@ -173,7 +174,9 @@ public class OxmModelValidator {
 
         // check for valid field
         if (modelObjectType.getDescriptor().getMappingForAttributeName(keyJavaName) == null) {
-          throw new CrudException("Invalid field: " + entry.getKey(), Status.BAD_REQUEST);
+        	if(reservedType.getDescriptor().getMappingForAttributeName(keyJavaName) == null){
+        		throw new CrudException("Invalid field: " + entry.getKey(), Status.BAD_REQUEST);
+        	}
         }
 
       }
@@ -219,6 +222,20 @@ public class OxmModelValidator {
           }
         }
       }
+      
+      // Handle reserved properties
+      for (DatabaseMapping mapping : reservedType.getDescriptor().getMappings()) {
+        if (mapping.isAbstractDirectMapping()) {
+          DatabaseField field = mapping.getField();
+          String keyName = field.getName().substring(0, field.getName().indexOf("/"));
+
+          if (entriesMap.containsKey(keyName)) {
+            Object value = CrudServiceUtil.validateFieldType(entriesMap.get(keyName)
+                .getAsString(), field.getType());
+            modelVertexBuilder.property(keyName, value);
+          }
+        }
+      }
 
       return modelVertexBuilder.build();
     } catch (Exception e) {
@@ -237,6 +254,7 @@ public class OxmModelValidator {
           CaseFormat.LOWER_HYPHEN.to(CaseFormat.UPPER_CAMEL, type));
 
       final DynamicType modelObjectType = jaxbContext.getDynamicType(modelObjectClass);
+      final DynamicType reservedType = jaxbContext.getDynamicType("ReservedPropNames");
 
       Set<Map.Entry<String, JsonElement>> payloadEntriesSet = properties.getAsJsonObject()
           .entrySet();
@@ -247,19 +265,26 @@ public class OxmModelValidator {
 
         String keyJavaName = CaseFormat.LOWER_HYPHEN.to(CaseFormat.LOWER_CAMEL, entry.getKey());
 
-        // check for valid field
-        if (modelObjectType.getDescriptor().getMappingForAttributeName(keyJavaName) == null) {
+        DatabaseField field = null;
+        String defaultValue = null;
+        
+        if (modelObjectType.getDescriptor().getMappingForAttributeName(keyJavaName) != null) {
+          field = modelObjectType.getDescriptor().getMappingForAttributeName(keyJavaName).getField();
+          defaultValue = modelObjectType.getDescriptor()
+              .getMappingForAttributeName(keyJavaName)
+              .getProperties().get("defaultValue") == null ? ""
+              : modelObjectType.getDescriptor().getMappingForAttributeName(keyJavaName)
+              .getProperties().get("defaultValue").toString();
+        }
+        else if (reservedType.getDescriptor().getMappingForAttributeName(keyJavaName) != null) {
+          field = reservedType.getDescriptor().getMappingForAttributeName(keyJavaName).getField();
+          defaultValue = "";
+        }
+        
+        if (field == null) {
           throw new CrudException("Invalid field: " + entry.getKey(), Status.BAD_REQUEST);
         }
 
-        DatabaseField field = modelObjectType.getDescriptor()
-            .getMappingForAttributeName(keyJavaName).getField();
-        String defaultValue = modelObjectType.getDescriptor()
-            .getMappingForAttributeName(keyJavaName)
-            .getProperties().get("defaultValue") == null ? ""
-            : modelObjectType.getDescriptor().getMappingForAttributeName(keyJavaName)
-            .getProperties().get("defaultValue").toString();
-
         // check if mandatory field is not set to null
         if (((XMLField) field).isRequired() && entry.getValue() instanceof JsonNull
             && !defaultValue.isEmpty()) {
@@ -288,7 +313,7 @@ public class OxmModelValidator {
     }
 
   }
-
+  
   private static DatabaseField getDatabaseField(String fieldName, DynamicType modelObjectType) {
     for (DatabaseField field : modelObjectType.getDescriptor().getAllFields()) {
       int ix = field.getName().indexOf("/");
diff --git a/src/main/java/org/openecomp/schema/RelationshipSchemaLoader.java b/src/main/java/org/openecomp/schema/RelationshipSchemaLoader.java
index d4ae2b9..89a9e58 100644
--- a/src/main/java/org/openecomp/schema/RelationshipSchemaLoader.java
+++ b/src/main/java/org/openecomp/schema/RelationshipSchemaLoader.java
@@ -23,34 +23,38 @@
  */
 package org.openecomp.schema;
 
-import org.apache.commons.io.IOUtils;
-import org.openecomp.aai.dbmodel.DbEdgeRules;
-import org.openecomp.cl.eelf.LoggerFactory;
-import org.openecomp.crud.exception.CrudException;
-import org.openecomp.crud.logging.CrudServiceMsgs;
-import org.openecomp.crud.util.CrudServiceConstants;
-import org.openecomp.crud.util.FileWatcher;
-import org.springframework.core.io.UrlResource;
-import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
-import org.springframework.core.io.support.ResourcePatternResolver;
-
-import java.io.*;
-import java.util.Arrays;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Comparator;
-import java.util.concurrent.ConcurrentHashMap;
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 import java.util.SortedSet;
-import java.util.stream.Collectors;
 import java.util.Timer;
 import java.util.TimerTask;
 import java.util.TreeSet;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
 import javax.ws.rs.core.Response.Status;
 
+import org.apache.commons.io.IOUtils;
+import org.openecomp.cl.eelf.LoggerFactory;
+import org.openecomp.crud.exception.CrudException;
+import org.openecomp.crud.logging.CrudServiceMsgs;
+import org.openecomp.crud.util.CrudServiceConstants;
+import org.openecomp.crud.util.FileWatcher;
+import org.springframework.core.io.UrlResource;
+import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
+import org.springframework.core.io.support.ResourcePatternResolver;
+
 public class RelationshipSchemaLoader {
 
   private static Map<String, RelationshipSchema> versionContextMap = new ConcurrentHashMap<>();
@@ -153,7 +157,6 @@ public class RelationshipSchemaLoader {
                   String errorMsg = "Expecting a rules and a edge_properties files for " + version + ". Found: " + filenames;
                   logger.warn(CrudServiceMsgs.INVALID_OXM_FILE, errorMsg);
                 }});
-
       logger.info(CrudServiceMsgs.LOADED_OXM_FILE, "Relationship Schema and Properties files: " + rulesFiles.stream().map(f -> filename(f)).collect(Collectors.toList()));
     } catch (IOException e) {
       logger.error(CrudServiceMsgs.INVALID_OXM_DIR, rulesDir);
diff --git a/src/main/resources/logging/CrudServiceMsgs.properties b/src/main/resources/logging/CrudServiceMsgs.properties
index 13554e5..a4c2991 100644
--- a/src/main/resources/logging/CrudServiceMsgs.properties
+++ b/src/main/resources/logging/CrudServiceMsgs.properties
@@ -55,3 +55,6 @@ EXCEPTION_DURING_METHOD_CALL=\
 OXM_LOAD_ERROR=\
             CRD0503E|\
             Unable to load OXM schema: {0}
+TRANSACTION=\
+            CRD0008I|\
+            TRANSACTION: {0}