X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;ds=inline;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FAlbum.java;h=a173e194efc6ae25bb966d50051998b9cfe11bbc;hb=745511cbc455604bb9ecbad3f6a2ea84e789de05;hp=67bfefdc4f0e78c4bb32bd7292260ae6bee1124c;hpb=fef93a83c728ca853ea93872e870130512af3fcb;p=Sone.git
diff --git a/src/main/java/net/pterodactylus/sone/data/Album.java b/src/main/java/net/pterodactylus/sone/data/Album.java
index 67bfefd..a173e19 100644
--- a/src/main/java/net/pterodactylus/sone/data/Album.java
+++ b/src/main/java/net/pterodactylus/sone/data/Album.java
@@ -1,5 +1,5 @@
/*
- * Sone - Album.java - Copyright © 2011 David Roden
+ * Sone - Album.java - Copyright © 2011â2013 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
@@ -17,154 +17,192 @@
package net.pterodactylus.sone.data;
+import static java.util.Arrays.asList;
+import static java.util.Collections.emptyList;
+
import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
import java.util.List;
-import java.util.UUID;
+import javax.annotation.Nonnull;
+
+import net.pterodactylus.sone.database.AlbumBuilder;
+import net.pterodactylus.sone.database.ImageBuilder;
+
+import com.google.common.base.Function;
+import com.google.common.base.Optional;
+import com.google.common.base.Predicate;
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.ImmutableList;
/**
* Container for images that can also contain nested {@link Album}s.
*
* @author David âBombeâ Roden
*/
-public class Album {
-
- /** The ID of this album. */
- private final String id;
-
- /** The Sone this album belongs to. */
- private final Sone sone;
-
- /** Nested albums. */
- private final List albums = new ArrayList();
+public interface Album extends Identified, Fingerprintable {
- /** The images in this album. */
- private final List images = new ArrayList();
+ /** Compares two {@link Album}s by {@link #getTitle()}. */
+ Comparator TITLE_COMPARATOR = new Comparator() {
- /** The name of this album. */
- private String name;
+ @Override
+ public int compare(Album leftAlbum, Album rightAlbum) {
+ return leftAlbum.getTitle().compareToIgnoreCase(rightAlbum.getTitle());
+ }
+ };
+
+ /** Function that flattens the given album and all albums beneath it. */
+ Function> FLATTENER = new Function>() {
+
+ @Override
+ @Nonnull
+ public List apply(Album album) {
+ if (album == null) {
+ return emptyList();
+ }
+ List albums = new ArrayList();
+ albums.add(album);
+ for (Album subAlbum : album.getAlbums()) {
+ albums.addAll(FluentIterable.from(ImmutableList.of(subAlbum)).transformAndConcat(FLATTENER).toList());
+ }
+ return albums;
+ }
+ };
- /** The description of this album. */
- private String description;
+ /** Function that transforms an album into the images it contains. */
+ Function> IMAGES = new Function>() {
- /**
- * Creates a new album with a random ID.
- *
- * @param sone
- * The Sone this album belongs to
- */
- public Album(Sone sone) {
- this(UUID.randomUUID().toString(), sone);
- }
+ @Override
+ @Nonnull
+ public List apply(Album album) {
+ return (album != null) ? album.getImages() : Collections.emptyList();
+ }
+ };
/**
- * Creates a new album with the given ID.
- *
- * @param id
- * The ID of the album
- * @param sone
- * The Sone this album belongs to
+ * Filter that removes all albums that do not have any images in any album
+ * below it.
*/
- public Album(String id, Sone sone) {
- this.id = id;
- this.sone = sone;
- }
-
- //
- // ACCESSORS
- //
+ Predicate NOT_EMPTY = new Predicate() {
+
+ @Override
+ public boolean apply(Album album) {
+ /* so, we flatten all albums below the given one and check whether at least one album⦠*/
+ return FluentIterable.from(asList(album)).transformAndConcat(FLATTENER).anyMatch(new Predicate() {
+
+ @Override
+ public boolean apply(Album album) {
+ /* â¦contains any inserted images. */
+ return !album.getImages().isEmpty() && FluentIterable.from(album.getImages()).allMatch(new Predicate() {
+
+ @Override
+ public boolean apply(Image input) {
+ return input.isInserted();
+ }
+ });
+ }
+ });
+ }
+ };
/**
* Returns the ID of this album.
*
* @return The ID of this album
*/
- public String getId() {
- return id;
- }
+ String getId();
/**
* Returns the Sone this album belongs to.
*
* @return The Sone this album belongs to
*/
- public Sone getSone() {
- return sone;
- }
+ Sone getSone();
+
+ List getAlbums();
/**
- * Returns the nested albums.
+ * Returns the images in this album.
*
- * @return The nested albums
+ * @return The images in this album
*/
- public List getNestedAlbums() {
- return new ArrayList(albums);
- }
+ List getImages();
+
+ Optional getAlbumImage();
/**
- * Returns the images in this album.
+ * Returns whether this album contains any other albums or images.
*
- * @return The images in this album
+ * @return {@code true} if this album is empty, {@code false} otherwise
*/
- public List getImages() {
- return new ArrayList(images);
- }
+ boolean isEmpty();
/**
- * Returns the name of this album.
+ * Returns whether this album is an identitiyâs root album.
*
- * @return The name of this album
+ * @return {@code true} if this album is an identityâs root album, {@code
+ * false} otherwise
*/
- public String getName() {
- return name;
- }
+ boolean isRoot();
/**
- * Sets the name of this album.
+ * Returns the parent album of this album.
*
- * @param name
- * The name of this album
- * @return This album
+ * @return The parent album of this album, or {@code null} if this album does
+ * not have a parent
*/
- public Album setName(String name) {
- this.name = name;
- return this;
- }
+ Album getParent();
+
+ /**
+ * Returns the title of this album.
+ *
+ * @return The title of this album
+ */
+ String getTitle();
/**
* Returns the description of this album.
*
* @return The description of this album
*/
- public String getDescription() {
- return description;
- }
+ String getDescription();
+
+ AlbumBuilder newAlbumBuilder() throws IllegalStateException;
+
+ ImageBuilder newImageBuilder() throws IllegalStateException;
/**
- * Sets the description of this album.
+ * Returns a modifier for this album.
*
- * @param description
- * The description of this album
- * @return This album
+ * @return A modifier for this album
+ * @throws IllegalStateException
+ * if this album can not be modified
*/
- public Album setDescription(String description) {
- this.description = description;
- return this;
- }
+ Modifier modify() throws IllegalStateException;
+
+ void moveUp();
- //
- // OBJECT METHODS
- //
+ void moveDown();
+
+ void remove() throws IllegalStateException;
/**
- * {@inheritDoc}
+ * Allows modifying an album. Modifications are only performed once {@link
+ * #update()} has succesfully returned a new album with the modifications
+ * made.
+ *
+ * @author David âBombeâ Roden
*/
- @Override
- public boolean equals(Object object) {
- if (!(object instanceof Album)) {
- return false;
- }
- Album album = (Album) object;
- return sone.equals(album.sone) && id.equals(album.id);
+ interface Modifier {
+
+ Modifier setTitle(String title);
+
+ Modifier setDescription(String description);
+
+ Modifier setAlbumImage(String imageId);
+
+ Album update() throws IllegalStateException;
+
}
}