com.twitter.elephanttwin.retrieval.CountTimestampSamplesWritable.java Source code

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/**
 * Copyright 2012 Twitter, Inc.
 *
 * 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 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 com.twitter.elephanttwin.retrieval;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.List;
import com.google.common.collect.Lists;
import org.apache.hadoop.io.Writable;

/**
 * @author Alex Levenson
 */
public class CountTimestampSamplesWritable implements Writable {
    private CountTimestampWritable countTimestampWritable;
    private List<Long> samples;

    public CountTimestampSamplesWritable(long count, long epochMilliseconds, List<Long> samples) {
        this.countTimestampWritable = new CountTimestampWritable(count, epochMilliseconds);
        this.samples = samples;
    }

    @Override
    public void write(DataOutput dataOutput) throws IOException {
        countTimestampWritable.write(dataOutput);
        dataOutput.writeInt(samples.size());
        for (long sample : samples) {
            dataOutput.writeLong(sample);
        }
    }

    @Override
    public void readFields(DataInput dataInput) throws IOException {
        this.countTimestampWritable = new CountTimestampWritable(0, 0);
        this.countTimestampWritable.readFields(dataInput);
        int numSamples = dataInput.readInt();
        samples = Lists.newLinkedList();
        for (int i = 0; i < numSamples; i++) {
            samples.add(dataInput.readLong());
        }
    }

    public List<Long> getSamples() {
        return samples;
    }

    public void setSamples(List<Long> samples) {
        this.samples = samples;
    }

    public void setCount(long count) {
        countTimestampWritable.setCount(count);
    }

    public long getEpochMilliseconds() {
        return countTimestampWritable.getEpochMilliseconds();
    }

    public long getCount() {
        return countTimestampWritable.getCount();
    }

    public void setEpochMilliseconds(long epochMilliseconds) {
        countTimestampWritable.setEpochMilliseconds(epochMilliseconds);
    }
}