2 * ============LICENSE_START==========================================
4 * ===================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017-2018 Amdocs
7 * ===================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END============================================
21 package org.onap.aai.champtitan.graph.impl;
23 import com.google.gson.JsonObject;
24 import com.google.gson.JsonParser;
25 import com.thinkaurelius.titan.graphdb.tinkerpop.TitanIoRegistry;
26 import org.apache.tinkerpop.gremlin.structure.Direction;
27 import org.apache.tinkerpop.gremlin.structure.Vertex;
28 import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper;
29 import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONWriter;
30 import org.onap.aai.champcore.FormatMapper;
32 import java.io.ByteArrayOutputStream;
33 import java.io.IOException;
34 import java.io.OutputStream;
36 public class GraphSON implements FormatMapper {
37 private final GraphSONMapper mapper;
38 private final GraphSONWriter writer;
39 protected JsonParser parser;
42 this.mapper = GraphSONMapper.build().addRegistry(TitanIoRegistry.INSTANCE).create();
43 this.writer = GraphSONWriter.build().mapper(this.mapper).create();
44 this.parser = new JsonParser();
47 public JsonObject formatObject(Object v) {
48 OutputStream os = new ByteArrayOutputStream();
52 this.writer.writeVertex(os, (Vertex)v, Direction.BOTH);
53 result = os.toString();
54 } catch (IOException var5) {
55 var5.printStackTrace();
58 return this.parser.parse(result).getAsJsonObject();
61 public int parallelThreshold() {