com.zqh.hadoop.mr.Financial.StockWritable.java Source code

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Here is the source code for com.zqh.hadoop.mr.Financial.StockWritable.java

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package com.zqh.hadoop.mr.Financial; /**
                                     * Copyright 2013 Jesse Anderson
                                     * 
                                     * 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.
                                     */

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

import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.io.Writable;

/**
 * Writable representing a stock's price on a given day
 *
 */
public class StockWritable implements Writable {
    /** The stock's price */
    public BigDecimal price;

    /** The date of the stock price */
    public String date;

    /**
     * Empty constructor - required for serialization.
     */
    public StockWritable() {

    }

    /**
     * Constructor
     */
    public StockWritable(String date, BigDecimal price) {
        this.date = date;
        this.price = price;
    }

    /**
     * Serializes the fields of this object to out.
     */
    public void write(DataOutput out) throws IOException {
        out.writeUTF(date);

        byte[] priceArray = Bytes.toBytes(price);

        out.writeInt(priceArray.length);
        out.write(priceArray);
    }

    /**
     * Deserializes the fields of this object from in.
     */
    public void readFields(DataInput in) throws IOException {
        date = in.readUTF();

        int byteSize = in.readInt();
        byte[] priceArray = new byte[byteSize];
        in.readFully(priceArray);

        price = Bytes.toBigDecimal(priceArray);
    }

    @Override
    public String toString() {
        return date + " " + price;
    }

    @Override
    public Object clone() {
        return new StockWritable(date, price);
    }

    /**
     * The hashCode method generates a hash code for a com.zqh.hadoop.mr.Financial.StockWritable object. The equals and hashCode methods have been
     * automatically generated by Eclipse by right-clicking on an empty line, selecting Source, and then selecting the
     * Generate hashCode() and equals() option.
     */
    @Override
    public int hashCode() {
        return date.hashCode();
    }
}