hadoop VirtualInputSplit 源码

  • 2022-10-20
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haddop VirtualInputSplit 代码

文件路径:/hadoop-tools/hadoop-dynamometer/hadoop-dynamometer-workload/src/main/java/org/apache/hadoop/tools/dynamometer/workloadgenerator/VirtualInputSplit.java

/**
 * 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.hadoop.tools.dynamometer.workloadgenerator;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.mapreduce.InputSplit;


/**
 * A fake input split.
 */
public class VirtualInputSplit extends InputSplit implements Writable {

  @Override
  public void write(DataOutput out) throws IOException {
    // do Nothing
  }

  @Override
  public void readFields(DataInput in) throws IOException {
    // do Nothing
  }

  @Override
  public long getLength() throws IOException, InterruptedException {
    return 0;
  }

  @Override
  public String[] getLocations() throws IOException, InterruptedException {
    return new String[] {};
  }

}

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