--- /dev/null
+/*
+ * Sone - ImageImpl.java - Copyright © 2011–2013 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;
+
+import static com.google.common.base.Optional.absent;
+import static com.google.common.base.Optional.fromNullable;
+import static com.google.common.base.Optional.of;
+import static com.google.common.base.Preconditions.checkNotNull;
+import static com.google.common.base.Preconditions.checkState;
+
+import java.util.UUID;
+
+import com.google.common.base.Optional;
+import com.google.common.hash.Hasher;
+import com.google.common.hash.Hashing;
+
+/**
+ * Container for image metadata.
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class ImageImpl implements Image {
+
+ /** The ID of the image. */
+ private final String id;
+
+ /** The Sone the image belongs to. */
+ private Sone sone;
+
+ /** The album this image belongs to. */
+ private Album album;
+
+ /** The request key of the image. */
+ private String key;
+
+ /** The creation time of the image. */
+ private long creationTime;
+
+ /** The width of the image. */
+ private int width;
+
+ /** The height of the image. */
+ private int height;
+
+ /** The title of the image. */
+ private String title;
+
+ /** The description of the image. */
+ private String description;
+
+ /** Creates a new image with a random ID. */
+ public ImageImpl() {
+ this(UUID.randomUUID().toString());
+ this.creationTime = System.currentTimeMillis();
+ }
+
+ /**
+ * Creates a new image.
+ *
+ * @param id
+ * The ID of the image
+ */
+ public ImageImpl(String id) {
+ this.id = checkNotNull(id, "id must not be null");
+ }
+
+ //
+ // ACCESSORS
+ //
+
+ @Override
+ public String getId() {
+ return id;
+ }
+
+ @Override
+ public Sone getSone() {
+ return sone;
+ }
+
+ @Override
+ public Album getAlbum() {
+ return album;
+ }
+
+ @Override
+ public Image setAlbum(Album album) {
+ checkNotNull(album, "album must not be null");
+ checkNotNull(album.getSone().equals(getSone()), "album must belong to the same Sone as this image");
+ this.album = album;
+ return this;
+ }
+
+ @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;
+ }
+
+ public Modifier modify() throws IllegalStateException {
+ // TODO: reenable check for local images
+ return new Modifier() {
+ private Optional<Sone> sone = absent();
+
+ private Optional<Long> creationTime = absent();
+
+ private Optional<String> key = absent();
+
+ private Optional<String> title = absent();
+
+ private Optional<String> description = absent();
+
+ private Optional<Integer> width = absent();
+
+ private Optional<Integer> height = absent();
+
+ @Override
+ public Modifier setSone(Sone sone) {
+ this.sone = fromNullable(sone);
+ return this;
+ }
+
+ @Override
+ public Modifier setCreationTime(long creationTime) {
+ this.creationTime = of(creationTime);
+ return this;
+ }
+
+ @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 Modifier setWidth(int width) {
+ this.width = of(width);
+ return this;
+ }
+
+ @Override
+ public Modifier setHeight(int height) {
+ this.height = of(height);
+ return this;
+ }
+
+ @Override
+ public Image update() throws IllegalStateException {
+ checkState(!sone.isPresent() || (ImageImpl.this.sone == null) || sone.get().equals(ImageImpl.this.sone), "can not change Sone once set");
+ checkState(!creationTime.isPresent() || ((ImageImpl.this.creationTime == 0) || (ImageImpl.this.creationTime == creationTime.get())), "can not change creation time once set");
+ checkState(!key.isPresent() || (ImageImpl.this.key == null) || key.get().equals(ImageImpl.this.key), "can not change key once set");
+ checkState(!width.isPresent() || (ImageImpl.this.width == 0) || width.get().equals(ImageImpl.this.width), "can not change width once set");
+ checkState(!height.isPresent() || (ImageImpl.this.height == 0) || height.get().equals(ImageImpl.this.height), "can not change height once set");
+
+ if (sone.isPresent()) {
+ ImageImpl.this.sone = sone.get();
+ }
+ if (creationTime.isPresent()) {
+ ImageImpl.this.creationTime = creationTime.get();
+ }
+ if (key.isPresent()) {
+ ImageImpl.this.key = key.get();
+ }
+ if (title.isPresent()) {
+ ImageImpl.this.title = title.get();
+ }
+ if (description.isPresent()) {
+ ImageImpl.this.description = description.get();
+ }
+ if (width.isPresent()) {
+ ImageImpl.this.width = width.get();
+ }
+ if (height.isPresent()) {
+ ImageImpl.this.height = height.get();
+ }
+
+ return ImageImpl.this;
+ }
+ };
+ }
+
+ //
+ // FINGERPRINTABLE METHODS
+ //
+
+ @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();
+ }
+
+ //
+ // OBJECT METHODS
+ //
+
+ /** {@inheritDoc} */
+ @Override
+ public int hashCode() {
+ return id.hashCode();
+ }
+
+ /** {@inheritDoc} */
+ @Override
+ public boolean equals(Object object) {
+ if (!(object instanceof ImageImpl)) {
+ return false;
+ }
+ return ((ImageImpl) object).id.equals(id);
+ }
+
+}
projects / Sone.git / blobdiff