init

java/org/apache/catalina/tribes/UniqueId.java

@@ -0,0 +1,78 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.catalina.tribes;
+
+import java.io.Serializable;
+
+import org.apache.catalina.tribes.util.Arrays;
+
+/**
+ * <p>Title: Represents a globally unique Id</p>
+ *
+ * <p>Company: </p>
+ *
+ * @version 1.0
+ */
+public final class UniqueId implements Serializable{
+    private static final long serialVersionUID = 1L;
+
+    final byte[] id;
+
+    public UniqueId() {
+        this(null);
+    }
+
+    public UniqueId(byte[] id) {
+        this.id = id;
+    }
+
+    public UniqueId(byte[] id, int offset, int length) {
+        this.id = new byte[length];
+        System.arraycopy(id,offset,this.id,0,length);
+    }
+
+    @Override
+    public int hashCode() {
+        if ( id == null ) return 0;
+        return Arrays.hashCode(id);
+    }
+
+    @Override
+    public boolean equals(Object other) {
+        boolean result = (other instanceof UniqueId);
+        if ( result ) {
+            UniqueId uid = (UniqueId)other;
+            if ( this.id == null && uid.id == null ) result = true;
+            else if ( this.id == null && uid.id != null ) result = false;
+            else if ( this.id != null && uid.id == null ) result = false;
+            else result = Arrays.equals(this.id,uid.id);
+        }//end if
+        return result;
+    }
+
+    public byte[] getBytes() {
+        return id;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder buf = new StringBuilder("UniqueId");
+        buf.append(Arrays.toString(id));
+        return buf.toString();
+    }
+
+}