Use SHA-256 hashes for fingerprinting.

[Sone.git] / src / main / java / net / pterodactylus / sone / data / Album.java

diff --git a/src/main/java/net/pterodactylus/sone/data/Album.java b/src/main/java/net/pterodactylus/sone/data/Album.java
index c1ae267..7103871 100644 (file)
--- a/src/main/java/net/pterodactylus/sone/data/Album.java
+++ b/src/main/java/net/pterodactylus/sone/data/Album.java
@@ -32,6 +32,8 @@ import com.google.common.base.Function;
 import com.google.common.base.Optional;
 import com.google.common.base.Predicates;
 import com.google.common.collect.Collections2;
+import com.google.common.hash.Hasher;
+import com.google.common.hash.Hashing;
 
 /**
  * Container for images that can also contain nested {@link Album}s.
@@ -436,33 +438,33 @@ 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();
        }
 
        //