2 * Sone - Album.java - Copyright © 2011 David Roden
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 package net.pterodactylus.sone.data;
20 import java.util.ArrayList;
21 import java.util.List;
22 import java.util.UUID;
24 import net.pterodactylus.util.validation.Validation;
27 * Container for images that can also contain nested {@link Album}s.
29 * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
31 public class Album implements Fingerprintable {
33 /** The ID of this album. */
34 private final String id;
36 /** The Sone this album belongs to. */
40 private final List<Album> albums = new ArrayList<Album>();
42 /** The images in this album. */
43 private final List<Image> images = new ArrayList<Image>();
45 /** The parent album. */
48 /** The name of this album. */
51 /** The description of this album. */
52 private String description;
54 /** The index of the album picture. */
55 private int albumImage = -1;
58 * Creates a new album with a random ID.
61 this(UUID.randomUUID().toString());
65 * Creates a new album with the given ID.
70 public Album(String id) {
71 Validation.begin().isNotNull("Album ID", id).check();
80 * Returns the ID of this album.
82 * @return The ID of this album
84 public String getId() {
89 * Returns the Sone this album belongs to.
91 * @return The Sone this album belongs to
93 public Sone getSone() {
98 * Sets the owner of the album. The owner can only be set as long as the
99 * current owner is {@code null}.
105 public Album setSone(Sone sone) {
106 Validation.begin().isNull("Current Album Owner", this.sone).isNotNull("New Album Owner", sone).check();
112 * Returns the nested albums.
114 * @return The nested albums
116 public List<Album> getAlbums() {
117 return new ArrayList<Album>(albums);
121 * Adds an album to this album.
126 public void addAlbum(Album album) {
127 Validation.begin().isNotNull("Album", album).check().isEqual("Album Owner", album.sone, sone).isNull("Album Parent", album.parent).check();
129 album.setParent(this);
133 * Removes an album from this album.
136 * The album to remove
138 public void removeAlbum(Album album) {
139 Validation.begin().isNotNull("Album", album).check().isEqual("Album Owner", album.sone, sone).isEqual("Album Parent", album.parent, this).check();
140 albums.remove(album);
141 album.removeParent();
145 * Returns the images in this album.
147 * @return The images in this album
149 public List<Image> getImages() {
150 return new ArrayList<Image>(images);
154 * Adds the given image to this album.
159 public void addImage(Image image) {
160 Validation.begin().isNotNull("Image", image).check().isNotNull("Image Owner", image.getSone()).check().isEqual("Image Owner", image.getSone(), sone).check();
165 * Removes the given image from this album.
168 * The image to remove
170 public void removeImage(Image image) {
171 Validation.begin().isNotNull("Image", image).check().isEqual("Image Owner", image.getSone(), sone).check();
172 images.remove(image);
176 * Returns the album image of this album, or {@code null} if no album image
179 * @return The image to show when this album is listed
181 public Image getAlbumImage() {
182 if (albumImage == -1) {
185 return images.get(albumImage);
189 * Returns the parent album of this album.
191 * @return The parent album of this album, or {@code null} if this album
192 * does not have a parent
194 public Album getParent() {
199 * Sets the parent album of this album.
202 * The new parent album of this album
205 protected Album setParent(Album parent) {
206 Validation.begin().isNotNull("Album Parent", parent).check();
207 this.parent = parent;
212 * Removes the parent album of this album.
216 protected Album removeParent() {
217 Validation.begin().isNotNull("Album Parent", parent).check();
223 * Returns the name of this album.
225 * @return The name of this album
227 public String getName() {
232 * Sets the name of this album.
235 * The name of this album
238 public Album setName(String name) {
239 Validation.begin().isNotNull("Album Name", name).check();
245 * Returns the description of this album.
247 * @return The description of this album
249 public String getDescription() {
254 * Sets the description of this album.
257 * The description of this album
260 public Album setDescription(String description) {
261 Validation.begin().isNotNull("Album Description", description).check();
262 this.description = description;
267 // FINGERPRINTABLE METHODS
274 public String getFingerprint() {
275 StringBuilder fingerprint = new StringBuilder();
276 fingerprint.append("Album(");
277 fingerprint.append("ID(").append(id).append(')');
278 fingerprint.append("Name(").append(name).append(')');
279 fingerprint.append("Description(").append(description).append(')');
281 /* add nested albums. */
282 fingerprint.append("Albums(");
283 for (Album album : albums) {
284 fingerprint.append(album.getFingerprint());
286 fingerprint.append(')');
289 fingerprint.append("Images(");
290 for (Image image : images) {
291 fingerprint.append(image.getFingerprint());
293 fingerprint.append(')');
295 fingerprint.append(')');
296 return fingerprint.toString();
307 public int hashCode() {
308 return id.hashCode();
315 public boolean equals(Object object) {
316 if (!(object instanceof Album)) {
319 Album album = (Album) object;
320 return id.equals(album.id);