Replace equals and compareTo with FastByteComparison

ethereumj-core/src/main/java/org/ethereum/db/ByteArrayWrapper.java

@@ -1,56 +1,48 @@
 package org.ethereum.db;
 
-import com.google.common.primitives.UnsignedBytes;
-
 import java.util.Arrays;
-import java.util.Comparator;
+
+import org.ethereum.util.FastByteComparisons;
 
 /**
  * www.ethereumJ.com
  * 
- * @author: Roman Mandeleil
- * Created on: 11/06/2014 15:02
+ * @author: Roman Mandeleil Created on: 11/06/2014 15:02
  */
+public class ByteArrayWrapper implements Comparable<ByteArrayWrapper> {
 
-public class ByteArrayWrapper implements Comparable{
+	private final byte[] data;
 
-    private final byte[] data;
+	public ByteArrayWrapper(byte[] data) {
+		if (data == null) {
+			throw new NullPointerException();
+		}
+		this.data = data;
+	}
 
-    public ByteArrayWrapper(byte[] data)
-    {
-        if (data == null)
-        {
-            throw new NullPointerException();
-        }
-        this.data = data;
-    }
+	public boolean equals(Object other) {
+		if (!(other instanceof ByteArrayWrapper)) {
+			return false;
+		}
+		byte[] otherData = ((ByteArrayWrapper) other).getData();
+		return FastByteComparisons.compareTo(
+				data, 0, data.length, 
+				otherData, 0, otherData.length) == 0;
+	}
 
-    @Override
-    public boolean equals(Object other)
-    {
-        if (!(other instanceof ByteArrayWrapper))
-        {
-            return false;
-        }
-        return Arrays.equals(data, ((ByteArrayWrapper)other).data);
-    }
+	@Override
+	public int hashCode() {
+		return Arrays.hashCode(data);
+	}
 
-    @Override
-    public int hashCode()
-    {
-        return Arrays.hashCode(data);
-    }
+	@Override
+	public int compareTo(ByteArrayWrapper o) {
+		return FastByteComparisons.compareTo(
+				data, 0, data.length, 
+				o.getData(), 0, o.getData().length);
+	}
 	
-
-    public byte[] getData() {
-        return data;
-    }
-
-    @Override
-    public int compareTo(Object second) {
-
-        Comparator<byte[]> comparator = UnsignedBytes.lexicographicalComparator();
-
-        return comparator.compare(this.data, ((ByteArrayWrapper)second).getData());
-    }
+	public byte[] getData() {
+		return data;
+	}
 }