hadoop CountTimeWritable 源码

  • 2022-10-20
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haddop CountTimeWritable 代码

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

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

/**
 * UserCommandKey is a {@link Writable} used as a composite value that
 * accumulates the count and cumulative latency of replayed commands. It is
 * used as the output value for AuditReplayMapper and AuditReplayReducer.
 */
public class CountTimeWritable implements Writable {
  private LongWritable count;
  private LongWritable time;

  public CountTimeWritable() {
    count = new LongWritable();
    time = new LongWritable();
  }

  public CountTimeWritable(LongWritable count, LongWritable time) {
    this.count = count;
    this.time = time;
  }

  public CountTimeWritable(long count, long time) {
    this.count = new LongWritable(count);
    this.time = new LongWritable(time);
  }

  public long getCount() {
    return count.get();
  }

  public long getTime() {
    return time.get();
  }

  public void setCount(long count) {
    this.count.set(count);
  }

  public void setTime(long time) {
    this.time.set(time);
  }

  @Override
  public void write(DataOutput out) throws IOException {
    count.write(out);
    time.write(out);
  }

  @Override
  public void readFields(DataInput in) throws IOException {
    count.readFields(in);
    time.readFields(in);
  }

  @Override
  public String toString() {
    return getCount() + "," + getTime();
  }
}

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