com.twitter.elephanttwin.retrieval.CountTimestampWritable.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 org.apache.hadoop.io.Writable;

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

/**
 * A writable that holds a count and a timestamp
 *
 * @author Alex Levenson
 */
public class CountTimestampWritable implements Writable {
    private long count;
    private long epochMilliseconds;

    /**
     * @param count - how many
     * @param epochMilliseconds - at what time, unix epoch millisecond timestamp
     */
    public CountTimestampWritable(long count, long epochMilliseconds) {
        this.count = count;
        this.epochMilliseconds = epochMilliseconds;
    }

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

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

    public long getCount() {
        return count;
    }

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

    public long getEpochMilliseconds() {
        return epochMilliseconds;
    }

    public void setEpochMilliseconds(long epochMilliseconds) {
        this.epochMilliseconds = epochMilliseconds;
    }
}