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

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Here is the source code for me.m1key.audiolicious.domain.entities.Artist.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 java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import java.util.UUID;

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.Table;

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

@Entity(name = "Artist")
@Table(name = "ARTISTS")
public class Artist {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "ARTIST_ID")
    private Long id;

    @Column(name = "UUID", unique = true, length = 36)
    private String uuid;

    @Column(name = "NAME", unique = true, length = 255)
    private String name;

    @OneToMany(mappedBy = "artist", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
    private Set<Album> albums;

    // For proxying.
    protected Artist() {
    }

    public Artist(String name) {
        this.uuid = UUID.randomUUID().toString();
        this.name = name;

        albums = new HashSet<Album>();
    }

    public Set<Album> getAlbums() {
        return Collections.unmodifiableSet(albums);
    }

    public String getName() {
        return name;
    }

    public String getUuid() {
        return uuid;
    }

    public String addSong(AlbumAndSongInfo albumAndSongInfo) {
        addAlbum(albumAndSongInfo);
        Album album = getAlbum(albumAndSongInfo);
        return album.addSong(albumAndSongInfo);
    }

    private Album getAlbum(AlbumInfo albumInfo) {
        for (Album album : getAlbums()) {
            if (album.equals(new Album(albumInfo, this))) {
                return album;
            }
        }
        return null;
    }

    private void addAlbum(AlbumInfo albumInfo) {
        Album album = new Album(albumInfo, this);
        albums.add(album);
    }

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

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

    public String getIdentityName() {
        if (name == null) {
            return null;
        } else {
            return name.toLowerCase();
        }
    }

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

}