X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=src%2Fmain%2Fjava%2Fnet%2Fpterodactylus%2Fsone%2Fdata%2FAlbum.java;h=8238b3fc3391acc55ae1ff62fa8fdc633957d881;hb=afcfd4827f3d7190004ce2dad92508aea5a9934e;hp=c1ae267caff9ac24dc4d5433b477754c48d18c09;hpb=06ae2e6649e61e3e3bff71690caa0e98e4ac01ba;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 c1ae267..8238b3f 100644
--- a/src/main/java/net/pterodactylus/sone/data/Album.java
+++ b/src/main/java/net/pterodactylus/sone/data/Album.java
@@ -20,6 +20,7 @@ package net.pterodactylus.sone.data;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
+import static java.util.Arrays.asList;
import java.util.ArrayList;
import java.util.Comparator;
@@ -30,15 +31,20 @@ import java.util.UUID;
import com.google.common.base.Function;
import com.google.common.base.Optional;
+import com.google.common.base.Predicate;
import com.google.common.base.Predicates;
import com.google.common.collect.Collections2;
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.ImmutableList;
+import com.google.common.hash.Hasher;
+import com.google.common.hash.Hashing;
/**
* Container for images that can also contain nested {@link Album}s.
*
* @author David âBombeâ Roden
*/
-public class Album implements Fingerprintable {
+public class Album implements Identified, Fingerprintable {
/** Compares two {@link Album}s by {@link #getTitle()}. */
public static final Comparator TITLE_COMPARATOR = new Comparator() {
@@ -49,6 +55,55 @@ public class Album implements Fingerprintable {
}
};
+ /** Function that flattens the given album and all albums beneath it. */
+ public static final Function> FLATTENER = new Function>() {
+
+ @Override
+ public List apply(Album album) {
+ List albums = new ArrayList();
+ albums.add(album);
+ for (Album subAlbum : album.getAlbums()) {
+ albums.addAll(FluentIterable.from(ImmutableList.of(subAlbum)).transformAndConcat(FLATTENER).toList());
+ }
+ return albums;
+ }
+ };
+
+ /** Function that transforms an album into the images it contains. */
+ public static final Function> IMAGES = new Function>() {
+
+ @Override
+ public List apply(Album album) {
+ return album.getImages();
+ }
+ };
+
+ /**
+ * Filter that removes all albums that do not have any images in any album
+ * below it.
+ */
+ public static final 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();
+ }
+ });
+ }
+ });
+ }
+ };
+
/** The ID of this album. */
private final String id;
@@ -148,7 +203,6 @@ public class Album implements Fingerprintable {
public void addAlbum(Album album) {
checkNotNull(album, "album must not be null");
checkArgument(album.getSone().equals(sone), "album must belong to the same Sone as this album");
- checkState((this.parent == null) || (this.parent.equals(album.parent)), "album must not already be set to some other Sone");
album.setParent(this);
if (!albums.contains(album)) {
albums.add(album);
@@ -354,6 +408,16 @@ public class Album implements Fingerprintable {
}
/**
+ * Returns whether this album is an identitiyâs root album.
+ *
+ * @return {@code true} if this album is an identityâs root album, {@code
+ * false} otherwise
+ */
+ public boolean isRoot() {
+ return parent == null;
+ }
+
+ /**
* Returns the parent album of this album.
*
* @return The parent album of this album, or {@code null} if this album
@@ -436,33 +500,33 @@ public class Album implements Fingerprintable {
*/
@Override
public String getFingerprint() {
- StringBuilder fingerprint = new StringBuilder();
- fingerprint.append("Album(");
- fingerprint.append("ID(").append(id).append(')');
- fingerprint.append("Title(").append(title).append(')');
- fingerprint.append("Description(").append(description).append(')');
+ Hasher hash = Hashing.sha256().newHasher();
+ hash.putString("Album(");
+ hash.putString("ID(").putString(id).putString(")");
+ hash.putString("Title(").putString(title).putString(")");
+ hash.putString("Description(").putString(description).putString(")");
if (albumImage != null) {
- fingerprint.append("AlbumImage(").append(albumImage).append(')');
+ hash.putString("AlbumImage(").putString(albumImage).putString(")");
}
/* add nested albums. */
- fingerprint.append("Albums(");
+ hash.putString("Albums(");
for (Album album : albums) {
- fingerprint.append(album.getFingerprint());
+ hash.putString(album.getFingerprint());
}
- fingerprint.append(')');
+ hash.putString(")");
/* add images. */
- fingerprint.append("Images(");
+ hash.putString("Images(");
for (Image image : getImages()) {
if (image.isInserted()) {
- fingerprint.append(image.getFingerprint());
+ hash.putString(image.getFingerprint());
}
}
- fingerprint.append(')');
+ hash.putString(")");
- fingerprint.append(')');
- return fingerprint.toString();
+ hash.putString(")");
+ return hash.hash().toString();
}
//