Add in-memory Album implementation.

diff --git a/src/main/java/net/pterodactylus/sone/database/memory/MemoryAlbum.java b/src/main/java/net/pterodactylus/sone/database/memory/MemoryAlbum.java
new file mode 100644 (file)
index 0000000..38e781f
--- /dev/null
+++ b/src/main/java/net/pterodactylus/sone/database/memory/MemoryAlbum.java
@@ -0,0 +1,126 @@
+/*
+ * Sone - MemoryAlbum.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.database.memory;
+
+import static com.google.common.base.Preconditions.checkState;
+
+import java.util.List;
+
+import net.pterodactylus.sone.data.Album;
+import net.pterodactylus.sone.data.Image;
+import net.pterodactylus.sone.data.Sone;
+import net.pterodactylus.sone.data.impl.AbstractAlbum;
+import net.pterodactylus.sone.data.impl.AbstractAlbumBuilder;
+import net.pterodactylus.sone.data.impl.AbstractImageBuilder;
+import net.pterodactylus.sone.database.AlbumBuilder;
+import net.pterodactylus.sone.database.ImageBuilder;
+
+import com.google.common.base.Optional;
+
+/**
+ * TODO
+ *
+ * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
+ */
+public class MemoryAlbum extends AbstractAlbum {
+
+       private final MemoryDatabase memoryDatabase;
+       private final Sone sone; /* TODO - only store sone ID. */
+       private final String parentId;
+
+       protected MemoryAlbum(MemoryDatabase memoryDatabase, String id, Sone sone, String parentId) {
+               super(id);
+               this.memoryDatabase = memoryDatabase;
+               this.sone = sone;
+               this.parentId = parentId;
+       }
+
+       @Override
+       public Sone getSone() {
+               return sone;
+       }
+
+       @Override
+       public List<Album> getAlbums() {
+               return memoryDatabase.getAlbums(this);
+       }
+
+       @Override
+       public List<Image> getImages() {
+               return memoryDatabase.getImages(this);
+       }
+
+       @Override
+       public Optional<Image> getAlbumImage() {
+               return memoryDatabase.getImage(albumImage);
+       }
+
+       @Override
+       public Album getParent() {
+               return memoryDatabase.getAlbum(parentId).get();
+       }
+
+       @Override
+       public AlbumBuilder newAlbumBuilder() throws IllegalStateException {
+               return new AbstractAlbumBuilder() {
+                       @Override
+                       public Album build() throws IllegalStateException {
+                               validate();
+                               MemoryAlbum memoryAlbum = new MemoryAlbum(memoryDatabase, getId(), sone, MemoryAlbum.this.id);
+                               memoryDatabase.storeAlbum(memoryAlbum);
+                               return memoryAlbum;
+                       }
+               };
+       }
+
+       @Override
+       public ImageBuilder newImageBuilder() throws IllegalStateException {
+               return new AbstractImageBuilder() {
+                       @Override
+                       public Image build() throws IllegalStateException {
+                               validate();
+                               MemoryImage memoryImage = new MemoryImage(memoryDatabase, getId(), sone, MemoryAlbum.this.id, key, getCreationTime(), width, height);
+                               memoryDatabase.storeImage(memoryImage);
+                               return memoryImage;
+                       }
+               };
+       }
+
+       @Override
+       public void moveUp() {
+               memoryDatabase.moveUp(this);
+       }
+
+       @Override
+       public void moveDown() {
+               memoryDatabase.moveDown(this);
+       }
+
+       @Override
+       public void remove() throws IllegalStateException {
+               checkState(!isRoot(), "can not remove root album");
+               for (Album album : getAlbums()) {
+                       album.remove();
+               }
+               for (Image image : getImages()) {
+                       image.remove();
+               }
+               memoryDatabase.removeAlbum(this);
+       }
+
+}