/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.flink.graph.examples.data;
import org.apache.flink.api.java.DataSet;
import org.apache.flink.api.java.ExecutionEnvironment;
import org.apache.flink.api.java.tuple.Tuple3;
import org.apache.flink.graph.Edge;
import org.apache.flink.types.NullValue;
import java.util.ArrayList;
import java.util.List;
/**
* Provides the default data sets used for the Triangle Count test program.
* If no parameters are given to the program, the default data sets are used.
*/
public class TriangleCountData {
public static final String EDGES = "1 2\n"+"1 3\n"+"2 3\n"+"2 6\n"+"3 4\n"+"3 5\n"+"3 6\n"+"4 5\n"+"6 7\n";
public static DataSet<Edge<Long, NullValue>> getDefaultEdgeDataSet(ExecutionEnvironment env) {
List<Edge<Long, NullValue>> edges = new ArrayList<Edge<Long, NullValue>>();
edges.add(new Edge<Long, NullValue>(1L, 2L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(1L, 3L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(2L, 3L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(2L, 6L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(3L, 4L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(3L, 5L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(3L, 6L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(4L, 5L, NullValue.getInstance()));
edges.add(new Edge<Long, NullValue>(6L, 7L, NullValue.getInstance()));
return env.fromCollection(edges);
}
public static final String RESULTED_NUMBER_OF_TRIANGLES = "3";
public static List<Tuple3<Long, Long, Long>> getListOfTriangles() {
ArrayList<Tuple3<Long, Long, Long>> ret = new ArrayList<>(3);
ret.add(new Tuple3<>(1L, 2L, 3L));
ret.add(new Tuple3<>(2L, 3L, 6L));
ret.add(new Tuple3<>(4L, 3L, 5L));
return ret;
}
private TriangleCountData () {}
}