/*
* 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.giraph.partition;
import org.apache.giraph.edge.ArrayListEdges;
import org.apache.giraph.edge.EdgeFactory;
import org.apache.giraph.edge.OutEdges;
import org.apache.giraph.graph.DefaultVertex;
import org.apache.giraph.graph.GiraphTransferRegulator;
import org.apache.giraph.graph.Vertex;
import org.apache.giraph.job.GiraphJob;
import org.apache.giraph.utils.NoOpComputation;
import org.apache.hadoop.io.DoubleWritable;
import org.apache.hadoop.io.FloatWritable;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.junit.Before;
import org.junit.Test;
import java.io.IOException;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
/**
* Test the GiraphTransferRegulator.
*/
public class TestGiraphTransferRegulator {
/** Job filled in by setup() */
private GiraphJob job;
/** Instantiated vertex filled in from setup() */
private Vertex<IntWritable, FloatWritable, DoubleWritable>
vertex = new DefaultVertex<IntWritable, FloatWritable, DoubleWritable>();
/**
* Dummy vertex.
*/
public static class TestComputation extends NoOpComputation<IntWritable,
FloatWritable, DoubleWritable, LongWritable> { }
@Before
public void setUp() {
try {
job = new GiraphJob("TestGiraphTransferRegulator");
} catch (IOException e) {
throw new RuntimeException("setUp: Failed", e);
}
job.getConfiguration().setComputationClass(TestComputation.class);
}
@Test
public void testGiraphTransferRegulator() {
job.getConfiguration()
.setInt(GiraphTransferRegulator.MAX_VERTICES_PER_TRANSFER, 1);
job.getConfiguration()
.setInt(GiraphTransferRegulator.MAX_EDGES_PER_TRANSFER, 3);
OutEdges<IntWritable, DoubleWritable> edges =
new ArrayListEdges<IntWritable, DoubleWritable>();
edges.initialize(3);
edges.add(EdgeFactory.create(new IntWritable(2), new DoubleWritable(22)));
edges.add(EdgeFactory.create(new IntWritable(3), new DoubleWritable(33)));
edges.add(EdgeFactory.create(new IntWritable(4), new DoubleWritable(44)));
vertex.initialize(new IntWritable(1), new FloatWritable(1), edges);
GiraphTransferRegulator gtr =
new GiraphTransferRegulator(job.getConfiguration());
PartitionOwner owner = mock(PartitionOwner.class);
when(owner.getPartitionId()).thenReturn(57);
assertFalse(gtr.transferThisPartition(owner));
gtr.incrementCounters(owner, vertex);
assertTrue(gtr.transferThisPartition(owner));
}
}