+/*
+ * Sone - DefaultImage.java - Copyright © 2013 David Roden
+ *
+ * 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.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.data.impl;
+
+import static com.google.common.base.Optional.absent;
+import static com.google.common.base.Optional.fromNullable;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+
+import net.pterodactylus.sone.data.Album;
+import net.pterodactylus.sone.data.Image;
+import net.pterodactylus.sone.data.Sone;
+
+import com.google.common.base.Optional;
+import com.google.common.hash.Hasher;
+import com.google.common.hash.Hashing;
+
+/**
+ * Dumb, store-everything-in-memory implementation of an {@link Image}.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class DefaultImage implements Image {
+
+ private final String id;
+ private final Sone sone;
+ private final Album album;
+ private final long creationTime;
+ private final int width;
+ private final int height;
+ private String key;
+ private String title;
+ private String description;
+
+ public DefaultImage(String id, Sone sone, Album album, String key, long creationTime, int width, int height) {
+ this.id = checkNotNull(id, "id must not be null");
+ this.sone = sone;
+ this.album = album;
+ this.key = key;
+ this.creationTime = creationTime;
+ this.width = width;
+ this.height = height;
+ }
+
+ @Override
+ public String getId() {
+ return id;
+ }
+
+ @Override
+ public Sone getSone() {
+ return sone;
+ }
+
+ @Override
+ public Album getAlbum() {
+ return album;
+ }
+
+ @Override
+ public String getKey() {
+ return key;
+ }
+
+ @Override
+ public boolean isInserted() {
+ return key != null;
+ }
+
+ @Override
+ public long getCreationTime() {
+ return creationTime;
+ }
+
+ @Override
+ public int getWidth() {
+ return width;
+ }
+
+ @Override
+ public int getHeight() {
+ return height;
+ }
+
+ @Override
+ public String getTitle() {
+ return title;
+ }
+
+ @Override
+ public String getDescription() {
+ return description;
+ }
+
+ @Override
+ public Modifier modify() throws IllegalStateException {
+ // TODO: reenable check for local images
+ return new Modifier() {
+ private Optional<String> key = absent();
+ private Optional<String> title = absent();
+ private Optional<String> description = absent();
+
+ @Override
+ public Modifier setKey(String key) {
+ this.key = fromNullable(key);
+ return this;
+ }
+
+ @Override
+ public Modifier setTitle(String title) {
+ this.title = fromNullable(title);
+ return this;
+ }
+
+ @Override
+ public Modifier setDescription(String description) {
+ this.description = fromNullable(description);
+ return this;
+ }
+
+ @Override
+ public Image update() throws IllegalStateException {
+ checkState(!key.isPresent() || (DefaultImage.this.key == null), "key can not be changed");
+
+ if (key.isPresent()) {
+ DefaultImage.this.key = key.get();
+ }
+ if (title.isPresent()) {
+ DefaultImage.this.title = title.get();
+ }
+ if (description.isPresent()) {
+ DefaultImage.this.description = description.get();
+ }
+
+ return DefaultImage.this;
+ }
+ };
+ }
+
+ @Override
+ public String getFingerprint() {
+ Hasher hash = Hashing.sha256().newHasher();
+ hash.putString("Image(");
+ hash.putString("ID(").putString(id).putString(")");
+ hash.putString("Title(").putString(title).putString(")");
+ hash.putString("Description(").putString(description).putString(")");
+ hash.putString(")");
+ return hash.hash().toString();
+ }
+
+ @Override
+ public int hashCode() {
+ return id.hashCode();
+ }
+
+ @Override
+ public boolean equals(Object object) {
+ if (!(object instanceof DefaultImage)) {
+ return false;
+ }
+ return ((DefaultImage) object).id.equals(id);
+ }
+
+}