giraph-examples/src/test/java/org/apache/giraph/TestPartitionContext.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
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package org.apache.giraph;

import org.apache.giraph.conf.GiraphConfiguration;
import org.apache.giraph.conf.GiraphConstants;
import org.apache.giraph.examples.GeneratedVertexReader;
import org.apache.giraph.examples.PartitionContextTestVertex;
import org.apache.giraph.examples.SimplePageRankVertex;
import org.apache.giraph.job.GiraphJob;
import org.junit.Test;

import java.io.IOException;

import static org.junit.Assert.assertTrue;

public class TestPartitionContext extends BspCase {
  public TestPartitionContext() {
    super(TestPartitionContext.class.getName());
  }

  @Test
  public void testPartitionContext() throws IOException,
      ClassNotFoundException, InterruptedException {
    if (runningInDistributedMode()) {
      System.out.println(
          "testComputeContext: Ignore this test in distributed mode.");
      return;
    }
    GiraphConfiguration conf = new GiraphConfiguration();
    conf.setVertexClass(PartitionContextTestVertex.class);
    conf.setVertexInputFormatClass(
        SimplePageRankVertex.SimplePageRankVertexInputFormat.class);
    conf.setWorkerContextClass(
        PartitionContextTestVertex.TestPartitionContextWorkerContext.class);
    conf.setPartitionContextClass(
        PartitionContextTestVertex.TestPartitionContextPartitionContext.class);
    GiraphJob job = prepareJob(getCallingMethodName(), conf);
    // Use multithreading
    job.getConfiguration().setNumComputeThreads(
        PartitionContextTestVertex.NUM_COMPUTE_THREADS);
    // Increase the number of vertices
    job.getConfiguration().setInt(
        GeneratedVertexReader.READER_VERTICES,
        PartitionContextTestVertex.NUM_VERTICES);
    // Increase the number of partitions
    GiraphConstants.USER_PARTITION_COUNT.set(job.getConfiguration(),
        PartitionContextTestVertex.NUM_PARTITIONS);
    assertTrue(job.run(true));
  }
}