com.cloudera.traffic.AverageWritable.java Source code

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Here is the source code for com.cloudera.traffic.AverageWritable.java

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package com.cloudera.traffic;
/**
 * 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.
 */

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

import org.apache.hadoop.io.Writable;

public class AverageWritable implements Writable {

    private int numElements;
    private double average;

    public AverageWritable() {
    }

    public void set(int numElements, double average) {
        this.numElements = numElements;
        this.average = average;
    }

    public int getNumElements() {
        return numElements;
    }

    public double getAverage() {
        return average;
    }

    @Override
    public void readFields(DataInput input) throws IOException {
        numElements = input.readInt();
        average = input.readDouble();
    }

    @Override
    public void write(DataOutput output) throws IOException {
        output.writeInt(numElements);
        output.writeDouble(average);
    }

    public String toString() {
        return "(" + numElements + ", " + average + ")";
    }

    @Override
    public boolean equals(Object o) {
        AverageWritable other = (AverageWritable) o;
        return other.numElements == numElements && other.average - average < .0001;
    }

    @Override
    public int hashCode() {
        return numElements * 31 + (int) average;
    }
}