/* Copyright (C) 2012 Intel Corporation.
* 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.
*
* For more about this software visit:
* http://www.01.org/GraphBuilder
*/
package com.intel.hadoop.graphbuilder.graph.glgraph;
import java.io.IOException;
import java.io.StringWriter;
import net.minidev.json.JSONObject;
import com.intel.hadoop.graphbuilder.graph.Graph;
import com.intel.hadoop.graphbuilder.graph.EdgeFormatter;
/**
* A JSON encoding of GLGraph.
*
*/
public class GLJsonFormatter implements EdgeFormatter {
/**
* @param g
* @return A JSON string of the vid2lvid map of a GLGraph.
*/
public StringWriter vid2lvidWriter(GLGraph g) {
JSONObject obj = new JSONObject();
obj.put("vid2lvid", g.vid2lvid());
StringWriter out = new StringWriter();
try {
obj.writeJSONString(out);
} catch (IOException e) {
e.printStackTrace();
}
return out;
}
@Override
public StringWriter edataWriter(Graph g) {
JSONObject obj = new JSONObject();
obj.put("edataList", ((GLGraph) g).edatalist());
StringWriter out = new StringWriter();
try {
obj.writeJSONString(out);
} catch (IOException e) {
e.printStackTrace();
}
return out;
}
@Override
public StringWriter structWriter(Graph graph) {
JSONObject obj = new JSONObject();
GLGraph g = (GLGraph) graph;
obj.put("numVertices", g.numVertices());
obj.put("numEdges", g.numEdges());
obj.put("csr", g.csr().toJSONObj());
obj.put("csc", g.csc().toJSONObj());
obj.put("c2rMap", g.c2rMap());
StringWriter out = new StringWriter();
try {
obj.writeJSONString(out);
} catch (IOException e) {
e.printStackTrace();
}
return out;
}
}