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/**
* ============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.onap.crud.service;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response.Status;
import org.onap.crud.dao.GraphDao;
import org.onap.crud.entity.Edge;
import org.onap.crud.entity.Vertex;
import org.onap.crud.exception.CrudException;
import org.onap.crud.parser.CrudResponseBuilder;
import org.onap.crud.util.CrudServiceUtil;
import org.onap.schema.OxmModelValidator;
import org.onap.schema.RelationshipSchemaValidator;
import com.google.gson.JsonElement;
public class CrudGraphDataService extends AbstractGraphDataService {
public CrudGraphDataService(GraphDao dao) throws CrudException {
super(dao);
}
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, HttpHeaders headers) 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")) {
vertexPayload.setProperties(CrudServiceUtil.mergeHeaderInFoToPayload(vertexPayload.getProperties(),
headers, true));
validatedVertex = OxmModelValidator.validateIncomingUpsertPayload(null, version, vertexPayload.getType(),
vertexPayload.getProperties());
// Call champDAO to add the vertex
persistedVertex = dao.addVertex(validatedVertex.getType(), validatedVertex.getProperties(), txId);
} else {
vertexPayload.setProperties(CrudServiceUtil.mergeHeaderInFoToPayload(vertexPayload.getProperties(),
headers, false));
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());
return CrudResponseBuilder
.buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, addedVertex), version);
}
public String addEdge(String version, String type, EdgePayload payload) throws CrudException {
Edge edge = RelationshipSchemaValidator.validateIncomingAddPayload(version, type, payload);
return addEdge(version, edge);
}
private String addEdge(String version, Edge edge) throws CrudException {
Edge addedEdge = dao.addEdge(edge.getType(), edge.getSource(), edge.getTarget(), edge.getProperties());
return CrudResponseBuilder
.buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, addedEdge), version);
}
public String updateVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
Vertex vertex = OxmModelValidator.validateIncomingUpsertPayload(id, version, type, payload.getProperties());
return updateVertex(version, vertex);
}
private String updateVertex(String version, Vertex vertex) throws CrudException {
Vertex updatedVertex = dao.updateVertex(vertex.getId().get(), vertex.getType(), vertex.getProperties());
return CrudResponseBuilder
.buildUpsertVertexResponse(OxmModelValidator.validateOutgoingPayload(version, updatedVertex), version);
}
public String patchVertex(String version, String id, String type, VertexPayload payload) throws CrudException {
Vertex existingVertex = dao.getVertex(id, OxmModelValidator.resolveCollectionType(version, type));
Vertex vertex = OxmModelValidator.validateIncomingPatchPayload(id, version, type, payload.getProperties(),
existingVertex);
return updateVertex(version, vertex);
}
public String deleteVertex(String version, String id, String type) throws CrudException {
type = OxmModelValidator.resolveCollectionType(version, type);
dao.deleteVertex(id, type);
return "";
}
public String deleteEdge(String version, String id, String type) throws CrudException {
RelationshipSchemaValidator.validateType(version, type);
dao.deleteEdge(id, type);
return "";
}
public String updateEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
Edge edge = dao.getEdge(id, type);
Edge validatedEdge = RelationshipSchemaValidator.validateIncomingUpdatePayload(edge, version, payload);
return updateEdge(version, validatedEdge);
}
private String updateEdge(String version, Edge edge) throws CrudException {
Edge updatedEdge = dao.updateEdge(edge);
return CrudResponseBuilder
.buildUpsertEdgeResponse(RelationshipSchemaValidator.validateOutgoingPayload(version, updatedEdge), version);
}
public String patchEdge(String version, String id, String type, EdgePayload payload) throws CrudException {
Edge edge = dao.getEdge(id, type);
Edge patchedEdge = RelationshipSchemaValidator.validateIncomingPatchPayload(edge, version, payload);
return updateEdge(version, patchedEdge);
}
public Vertex getVertex(String id) throws CrudException {
return dao.getVertex(id);
}
}
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