org.shaf.core.io.emulator.RecordWriterFactoryTest.java Source code

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Here is the source code for org.shaf.core.io.emulator.RecordWriterFactoryTest.java

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/**
 * Copyright 2014-2015 SHAF-WORK
 * 
 * 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.
 */
package org.shaf.core.io.emulator;

import static org.junit.Assert.assertEquals;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.mapreduce.MRJobConfig;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.SequenceFileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
import org.junit.Test;
import org.shaf.core._helper_.DummyDistributedProcess;
import org.shaf.core.anno.JobOutput;
import org.shaf.core.io.RecordWriterFactory;

/**
 * The class {@code RecordWriterFactoryTest} contains tests for the class
 * {@link RecordWriterFactory}.
 * 
 * @author Mykola Galushka
 */
public class RecordWriterFactoryTest extends GenericIOTest {

    /**
     * Run the record reader factory tests.
     * 
     * @throws Exception
     *             if the test fails for some reason.
     */
    @Test
    public void testFactory() throws Exception {
        Configuration config = job.getConfiguration();
        config.set(FileOutputFormat.OUTDIR, super.dir.toString());
        config.set(MRJobConfig.OUTPUT_KEY_CLASS, "org.apache.hadoop.io.NullWritable");
        config.set(MRJobConfig.OUTPUT_VALUE_CLASS, "org.apache.hadoop.io.NullWritable");

        assertEquals(TextWriter.class,
                RecordWriterFactory.createRecordWriter(SomeProcess1.class, job.getConfiguration()).getClass());

        assertEquals(SequenceWriter.class,
                RecordWriterFactory.createRecordWriter(SomeProcess2.class, job.getConfiguration()).getClass());
    }

    @JobOutput(formatClass = TextOutputFormat.class, keyClass = NullWritable.class, valueClass = NullWritable.class)
    public static class SomeProcess1 extends DummyDistributedProcess {
    }

    @JobOutput(formatClass = SequenceFileOutputFormat.class, keyClass = NullWritable.class, valueClass = NullWritable.class)
    public static class SomeProcess2 extends DummyDistributedProcess {
    }
}