org.apache.flink.hadoopcompatibility.mapred.wrapper.HadoopInputSplit.java Source code

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Here is the source code for org.apache.flink.hadoopcompatibility.mapred.wrapper.HadoopInputSplit.java

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/**
 * 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.flink.hadoopcompatibility.mapred.wrapper;

import java.io.IOException;

import org.apache.flink.core.io.InputSplit;
import org.apache.flink.core.memory.DataInputView;
import org.apache.flink.core.memory.DataOutputView;
import org.apache.hadoop.io.WritableFactories;
import org.apache.hadoop.mapred.JobConf;

public class HadoopInputSplit implements InputSplit {

    private transient org.apache.hadoop.mapred.InputSplit hadoopInputSplit;
    private JobConf jobConf;
    private int splitNumber;
    private String hadoopInputSplitTypeName;

    public org.apache.hadoop.mapred.InputSplit getHadoopInputSplit() {
        return hadoopInputSplit;
    }

    public HadoopInputSplit() {
        super();
    }

    public HadoopInputSplit(org.apache.hadoop.mapred.InputSplit hInputSplit, JobConf jobconf) {
        this.hadoopInputSplit = hInputSplit;
        this.hadoopInputSplitTypeName = hInputSplit.getClass().getName();
        this.jobConf = jobconf;
    }

    @Override
    public void write(DataOutputView out) throws IOException {
        out.writeInt(splitNumber);
        out.writeUTF(hadoopInputSplitTypeName);
        hadoopInputSplit.write(out);
    }

    @Override
    public void read(DataInputView in) throws IOException {
        this.splitNumber = in.readInt();
        this.hadoopInputSplitTypeName = in.readUTF();
        if (hadoopInputSplit == null) {
            try {
                Class<? extends org.apache.hadoop.io.Writable> inputSplit = Class.forName(hadoopInputSplitTypeName)
                        .asSubclass(org.apache.hadoop.io.Writable.class);
                this.hadoopInputSplit = (org.apache.hadoop.mapred.InputSplit) WritableFactories
                        .newInstance(inputSplit);
            } catch (Exception e) {
                throw new RuntimeException("Unable to create InputSplit", e);
            }
        }
        this.hadoopInputSplit.readFields(in);
    }

    @Override
    public int getSplitNumber() {
        return this.splitNumber;
    }

    public void setSplitNumber(int splitNumber) {
        this.splitNumber = splitNumber;
    }

    public void setHadoopInputSplit(org.apache.hadoop.mapred.InputSplit hadoopInputSplit) {
        this.hadoopInputSplit = hadoopInputSplit;
    }
}