Changed MurmurHash algo, to the one developed in http://github.com/tdunning/MAHOUT-228

src/main/java/redis/clients/util/Hashing.java

@@ -3,55 +3,9 @@ package redis.clients.util;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 
-public abstract class Hashing {
-    public static final Hashing MURMURE_HASH = new Hashing() {
-	public long hash(String key) {
-	    // 'm' and 'r' are mixing constants generated offline.
-	    // They're not really 'magic', they just happen to work well.
-	    byte[] data = key.getBytes();
-	    int seed = 0x1234ABCD;
-	    int m = 0x5bd1e995;
-	    int r = 24;
+public interface Hashing {
+    public static final Hashing MURMUR_HASH = new MurmurHash();
 
-	    // Initialize the hash to a 'random' value
-	    int len = data.length;
-	    int h = seed ^ len;
-
-	    int i = 0;
-	    while (len >= 4) {
-		int k = data[i + 0] & 0xFF;
-		k |= (data[i + 1] & 0xFF) << 8;
-		k |= (data[i + 2] & 0xFF) << 16;
-		k |= (data[i + 3] & 0xFF) << 24;
-
-		k *= m;
-		k ^= k >>> r;
-		k *= m;
-
-		h *= m;
-		h ^= k;
-
-		i += 4;
-		len -= 4;
-	    }
-
-	    switch (len) {
-	    case 3:
-		h ^= (data[i + 2] & 0xFF) << 16;
-	    case 2:
-		h ^= (data[i + 1] & 0xFF) << 8;
-	    case 1:
-		h ^= (data[i + 0] & 0xFF);
-		h *= m;
-	    }
-
-	    h ^= h >>> 13;
-	    h *= m;
-	    h ^= h >>> 15;
-
-	    return h;
-	}
-    };
     public static final Hashing MD5 = new Hashing() {
 	private MessageDigest md5 = null; // avoid recurring construction
 
@@ -75,5 +29,5 @@ public abstract class Hashing {
 	}
     };
 
-    public abstract long hash(String key);
+    public long hash(String key);
 }