package org.apache.hadoop.mapreduce.io;

import java.io.DataInput;

import java.io.DataOutput;

import java.io.IOException;

import org.apache.hadoop.io.WritableComparable;

/***

 * customize writable eg.order

 *

 * @author nele

 *

 */

public class OrderWritable implements WritableComparable<OrderWritable> {

    private String orderId;

    private float price;

    public OrderWritable() {

    }

    public OrderWritable(String orderId, float price) {

        set(orderId, price);

    }

    public void set(String orderId, float price) {

        this.orderId = orderId;

        this.price = price;

    }

    public String getOrderId() {

        return orderId;

    }

    public void setOrderId(String orderId) {

        this.orderId = orderId;

    }

    public float getPrice() {

        return price;

    }

    public void setPrice(float price) {

        this.price = price;

    }

    public void write(DataOutput out) throws IOException {

        out.writeUTF(orderId);

        out.writeFloat(price);

    }

    public void readFields(DataInput in) throws IOException {

        this.orderId = in.readUTF();

        this.price = in.readFloat();

    }

    public int compareTo(OrderWritable o) {

        int comp = this.orderId.compareTo(o.orderId);

        if (comp == 0) {

                return Float.valueOf(this.price).compareTo(Float.valueOf(o.price));

        }

        return comp;

    }

    @Override

    public String toString() {

        return   orderId + "\t" + price;

    }

    @Override

    public int hashCode() {

        final int prime = 31;

        int result = 1;

        result = prime * result + ((orderId == null) ? 0 : orderId.hashCode());

        result = prime * result + Float.floatToIntBits(price);

        return result;

    }

    @Override

    public boolean equals(Object obj) {

        if (this == obj)

            return true;

        if (obj == null)

            return false;

        if (getClass() != obj.getClass())

            return false;

        OrderWritable other = (OrderWritable) obj;

        if (orderId == null) {

            if (other.orderId != null)

                return false;

        } else if (!orderId.equals(other.orderId))

            return false;

        if (Float.floatToIntBits(price) != Float.floatToIntBits(other.price))

            return false;

        return true;

    }

}