hyracks/hyracks-hdfs/hyracks-hdfs-core/src/main/java/edu/uci/ics/hyracks/hdfs2/scheduler/WrappedFileSplit.java

/*
 * Copyright 2009-2013 by The Regents of the University of California
 * 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 from
 * 
 *     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 edu.uci.ics.hyracks.hdfs2.scheduler;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

import org.apache.hadoop.mapred.InputSplit;

/**
 * The wrapped implementation of InputSplit, for the new API scheduler
 * to reuse the old API scheduler
 */
@SuppressWarnings("deprecation")
public class WrappedFileSplit implements InputSplit {

    private String[] locations;
    private long length;

    public WrappedFileSplit(String[] locations, long length) {
        this.locations = locations;
        this.length = length;
    }

    @Override
    public void readFields(DataInput input) throws IOException {
        int len = input.readInt();
        locations = new String[len];
        for (int i = 0; i < len; i++)
            locations[i] = input.readUTF();
        length = input.readLong();
    }

    @Override
    public void write(DataOutput output) throws IOException {
        output.write(locations.length);
        for (int i = 0; i < locations.length; i++)
            output.writeUTF(locations[i]);
        output.writeLong(length);
    }

    @Override
    public long getLength() throws IOException {
        return length;
    }

    @Override
    public String[] getLocations() throws IOException {
        return locations;
    }

}