me.m1key.audiolicious.domain.entities.Rating.java Source code

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Here is the source code for me.m1key.audiolicious.domain.entities.Rating.java

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/* 
 * Audiolicious - Your Music Library Statistics
 * Copyright (C) 2011, Michal Huniewicz
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see http://www.m1key.me
 */

package me.m1key.audiolicious.domain.entities;

import javax.persistence.Column;
import javax.persistence.Embeddable;

import me.m1key.audiolicious.domain.to.RatingTo;

import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;

@Embeddable
public class Rating {

    private static final int MAX_STARS = 5;
    private static final int ONE_STAR_STEP = 100 / MAX_STARS;

    @Column(name = "PERCENTAGE")
    private int percentage;

    // For proxying.
    protected Rating() {
    }

    public Rating(int percentage) {
        this.percentage = percentage;
    }

    public Rating(RatingTo albumRating) {
        this.percentage = albumRating.getPercentage();
    }

    public int getStars() {
        return percentage / ONE_STAR_STEP;
    }

    @Override
    public int hashCode() {
        return new HashCodeBuilder().append(percentage).toHashCode();
    }

    @Override
    public boolean equals(final Object other) {
        if (!(other instanceof Rating))
            return false;
        Rating castOther = (Rating) other;
        return new EqualsBuilder().append(percentage, castOther.percentage).isEquals();
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this).append("percentage", percentage).toString();
    }

}