import org.openecomp.crud.logging.CrudServiceMsgs;
/**
- * 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_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 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 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
- }
+ private enum GraphType {
+ IN_MEMORY, TITAN, DSE
+ }
- /**
- * Instance of the API used for interacting with the Champ library.
- */
- private ChampGraph champApi = null;
+ /**
+ * Instance of the API used for interacting with the Champ library.
+ */
+ private ChampGraph champApi = null;
- private Logger logger = LoggerFactory.getInstance().getLogger(ChampDao.class.getName());
+ 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;
- }
+ /**
+ * 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 {
+ @Override
+ public Vertex getVertex(String id) throws CrudException {
- try {
+ try {
- if (logger.isDebugEnabled()) {
- logger.debug("getVertex with id: " + id);
- }
+ if (logger.isDebugEnabled()) {
+ logger.debug("getVertex with id: " + id);
+ }
- long idAsLong = Long.parseLong(id);
+ long idAsLong = Long.parseLong(id);
- Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
+ 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 {
+ 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);
- }
+ // 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) {
+ } catch (ChampUnmarshallingException | ChampTransactionException e) {
- // Something went wrong - throw an exception.
- throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
- }
- }
+ // 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 {
+ @Override
+ public Vertex getVertex(String id, String type) throws CrudException {
- try {
+ try {
- if (logger.isDebugEnabled()) {
- logger.debug("getVertex with id: " + id);
- }
+ if (logger.isDebugEnabled()) {
+ logger.debug("getVertex with id: " + id);
+ }
- long idAsLong = Long.parseLong(id);
+ long idAsLong = Long.parseLong(id);
- // Request the vertex from the graph db.
- Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
+ // 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)) {
+ // 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);
+ // Yup, convert it to a Vector object and return it.
+ return vertexFromChampObject(retrievedVertex.get(), type);
- } else {
+ } 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);
- }
+ // 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) {
+ } catch (ChampUnmarshallingException | ChampTransactionException e) {
- // Something went wrong - throw an exception.
- throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
- }
- }
+ // 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 {
+ @Override
+ public List<Edge> getVertexEdges(String id) throws CrudException {
- if (logger.isDebugEnabled()) {
- logger.debug("get Edges incident to vertex with id: " + id + " from graph");
- }
+ 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???
+ 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);
+ // Request the vertex from the graph db.
+ Optional<ChampObject> retrievedVertex = champApi.retrieveObject(idAsLong);
- // Did we find it?
- if (retrievedVertex.isPresent()) {
+ // 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());
+ // 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)));
+ // Build an edge list from the result stream.
+ List<Edge> edges = new ArrayList<Edge>();
+ relationships.forEach(r -> edges.add(edgeFromChampRelationship(r)));
- return edges;
+ return edges;
- } else {
+ } 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);
- }
+ // 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) {
+ } catch (ChampUnmarshallingException e) {
- // Something went wrong, so throw an exception.
- throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+ // Something went wrong, so throw an exception.
+ throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
- } catch (ChampObjectNotExistsException e) {
+ } 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);
- }
- }
+ // 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 {
+ @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));
- }
+ 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);
+ // 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);
+ // Create an object to represent our vertex in the format expected by the
+ // Champ library.
+ ChampObject objectToCreate = buildChampObject(type, properties);
- try {
+ 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);
+ // 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) {
+ } 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);
- }
- }
+ // 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 {
+ @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);
+ 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);
+ 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);
- }
+ } 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 {
+ @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));
- }
+ 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);
+ filter.put(org.openecomp.schema.OxmModelValidator.Metadata.NODE_TYPE.propertyName(), type);
- Stream<ChampObject> retrievedVertices;
- try {
- retrievedVertices = champApi.queryObjects(filter);
+ 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);
- }
+ } 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());
+ List<Vertex> vertices = retrievedVertices.map(v -> vertexFromChampObject(v, type)).collect(Collectors.toList());
- if (logger.isDebugEnabled()) {
- logger.debug("Resulting vertex list: " + retrievedVertices);
- }
+ if (logger.isDebugEnabled()) {
+ logger.debug("Resulting vertex list: " + retrievedVertices);
+ }
- // ...and return it to the caller.
- return vertices;
- }
+ // ...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
- }
+ 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;
- }
+ 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 {
- @Override
- public Edge getEdge(String id, String type) throws CrudException {
+ // 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);
+ }
- if (logger.isDebugEnabled()) {
- logger.debug("Get edge with id: " + id);
- }
+ // 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()));
- try {
+ } catch (ChampMarshallingException | ChampObjectNotExistsException | ChampSchemaViolationException
+ | ChampRelationshipNotExistsException | ChampUnmarshallingException | NumberFormatException
+ | ChampTransactionException e) {
- // Request the edge from the graph db.
- Optional<ChampRelationship> relationship = champApi.retrieveRelationship(getRelKey(id));
+ throw new CrudException("Error creating edge: " + e.getMessage(),
+ javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+ }
+ }
- // Did we find it?
- if (relationship.isPresent() && relationship.get().getType().equals(type)) {
+ @Override
+ public List<Edge> getEdges(String type, Map<String, Object> filter) throws CrudException {
- // Yup - return the result.
- return edgeFromChampRelationship(relationship.get());
+ filter.put(ChampRelationship.ReservedPropertyKeys.CHAMP_RELATIONSHIP_TYPE.toString(), type);
- } else {
+ Stream<ChampRelationship> retrievedRelationships;
+ try {
+ retrievedRelationships = champApi.queryRelationships(filter);
- // 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 (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()));
+ }
- } catch (ChampUnmarshallingException | ChampTransactionException e) {
+ 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 (NumberFormatException | ChampUnmarshallingException | ChampObjectNotExistsException
+ | ChampTransactionException e) {
+
+ throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+ }
+
+ }
+
+ @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()));
+ }
+
+ 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))));
+
+ } 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 deleteEdge(String id, String type, String txId) throws CrudException {
+ try {
+
+ // First, retrieve the edge that we want to delete.
+ Optional<ChampRelationship> relationshipToDelete = champApi.retrieveRelationship(getRelKey(id),
+ Optional.of(getTransaction(txId)));
+
+ // 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(), Optional.of(getTransaction(txId)));
+
+ } catch (ChampRelationshipNotExistsException | NumberFormatException | ChampUnmarshallingException
+ | ChampTransactionException e) {
+
+ throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
+ }
+
+ }
+
+ @Override
+ public Edge getEdge(String id, String type, String txId) 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),
+ Optional.of(getTransaction(txId)));
+
+ // 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);
+ }
- // 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 (NumberFormatException | ChampUnmarshallingException | ChampObjectNotExistsException | ChampTransactionException e) {
-
- throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
- }
-
- }
-
- @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()));
- }
-
- 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))));
-
- } 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 deleteEdge(String id, String type, String txId) throws CrudException {
- try {
-
- // First, retrieve the edge that we want to delete.
- Optional<ChampRelationship> relationshipToDelete = champApi.retrieveRelationship(getRelKey(id), Optional.of(getTransaction(txId)));
-
- // 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(), Optional.of(getTransaction(txId)));
-
- } catch (ChampRelationshipNotExistsException | NumberFormatException | ChampUnmarshallingException | ChampTransactionException e) {
-
- throw new CrudException(e.getMessage(), javax.ws.rs.core.Response.Status.INTERNAL_SERVER_ERROR);
- }
-
- }
-
- @Override
- public Edge getEdge(String id, String type, String txId) 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), Optional.of(getTransaction(txId)));
-
- // 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);
- }
- }
+ } 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);
+ }
+ }
}
Code Review / aai / gizmo.git / blobdiff