org.apache.hama.bsp.SequenceFileRecordWriter.java Source code

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Here is the source code for org.apache.hama.bsp.SequenceFileRecordWriter.java

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/**
 * Copyright 2007 The Apache Software Foundation
 *
 * 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.hama.bsp;

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.io.SequenceFile.Writer;
import org.apache.hadoop.io.Writable;

public class SequenceFileRecordWriter<K extends Writable, V extends Writable> implements RecordWriter<K, V> {

    private Writer writer;

    public SequenceFileRecordWriter(FileSystem fs, BSPJob job, String name)
            throws IOException, ClassNotFoundException {
        Configuration conf = job.getConfiguration();
        writer = new SequenceFile.Writer(fs, conf, new Path(conf.get("bsp.output.dir"), name),
                conf.getClassByName(conf.get("bsp.output.key.class")),
                conf.getClassByName(conf.get("bsp.output.value.class")));
    }

    @Override
    public void write(K key, V value) throws IOException {
        writer.append(key, value);
    }

    @Override
    public void close() throws IOException {
        writer.close();
    }

}