com.almende.eve.entity.Weight.java Source code

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Here is the source code for com.almende.eve.entity.Weight.java

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/*
 * Copyright: Almende B.V. (2014), Rotterdam, The Netherlands
 * License: The Apache Software License, Version 2.0
 */
package com.almende.eve.entity;

import java.io.Serializable;

import org.joda.time.DateTime;
import org.joda.time.Interval;

/**
 * The Class Weight.
 */
@SuppressWarnings("serial")
public class Weight implements Serializable {
    protected Weight() {
    }

    /**
     * Instantiates a new weight.
     * 
     * @param start
     *            the start
     * @param end
     *            the end
     * @param weight
     *            the weight
     */
    public Weight(final DateTime start, final DateTime end, final Double weight) {
        interval = new Interval(start, end);
        this.weight = weight;
    }

    /**
     * Instantiates a new weight.
     * 
     * @param interval
     *            the interval
     * @param weight
     *            the weight
     */
    public Weight(final Interval interval, final Double weight) {
        this.interval = interval;
        this.weight = weight;
    }

    /**
     * Instantiates a new weight.
     * 
     * @param other
     *            the other
     */
    public Weight(final Weight other) {
        interval = new Interval(other.interval);
        weight = new Double(other.weight);
    }

    /**
     * Gets the interval.
     * 
     * @return the interval
     */
    public Interval getInterval() {
        return interval;
    }

    /**
     * Gets the start.
     * 
     * @return the start
     */
    public DateTime getStart() {
        return interval.getStart();
    }

    /**
     * Gets the end.
     * 
     * @return the end
     */
    public DateTime getEnd() {
        return interval.getEnd();
    }

    /**
     * Gets the weight.
     * 
     * @return the weight
     */
    public Double getWeight() {
        return weight;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#hashCode()
     */
    @Override
    public int hashCode() {
        if (interval != null && weight != null) {
            return interval.hashCode() + weight.hashCode();
        } else if (interval != null) {
            return interval.hashCode();
        } else if (weight != null) {
            return weight.hashCode();
        }
        return 1;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(final Object o) {
        Weight other = null;
        if (o == null) {
            return false;
        }
        if (o instanceof Weight) {
            other = (Weight) o;
        }
        if (interval != null && other.interval != null) {
            // Do not use the normal interval.equals here,
            // sometimes the Chronology of two intervals differ, while the
            // start and end are equal. See also DateTime.compareTo
            // TODO: figure out this issue with Interval.equals
            // boolean equal = interval.equals(other.interval);
            final boolean equal = interval.getStartMillis() == other.interval.getStartMillis()
                    && interval.getEndMillis() == other.interval.getEndMillis();

            if (!equal) {
                return false;
            }
        } else if (interval != null || other.interval != null) {
            return false;
        }

        if (weight != null && other.weight != null) {
            return (weight.equals(other.weight));
        } else if (weight != null || other.weight != null) {
            return false;
        }

        return true;
    }

    /* (non-Javadoc)
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return interval.toString() + "/" + weight.toString();
    }

    private Interval interval = null;
    private Double weight = null;
}