1 files changed, 61 insertions, 0 deletions
diff --git a/maven-plugins/tags/tuscany-zip-plugin-alpha3/src/main/java/org/apache/tuscany/maven/zip/CompositeMap.java b/maven-plugins/tags/tuscany-zip-plugin-alpha3/src/main/java/org/apache/tuscany/maven/zip/CompositeMap.java
new file mode 100644
index 0000000000..813a1bd668
--- /dev/null
+++ b/maven-plugins/tags/tuscany-zip-plugin-alpha3/src/main/java/org/apache/tuscany/maven/zip/CompositeMap.java
@@ -0,0 +1,61 @@
+package org.apache.tuscany.maven.zip;
+
+/*
+ * 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.
+ */
+
+import java.util.AbstractMap;
+import java.util.Collections;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * @version $Id: CompositeMap.java 480784 2006-11-30 00:07:45Z jvanzyl $
+ * @todo merge with resources/assembly plugin
+ */
+public class CompositeMap
+    extends AbstractMap
+{
+    private Map recessive;
+
+    private Map dominant;
+
+    public CompositeMap( Map dominant, Map recessive )
+    {
+        this.dominant = Collections.unmodifiableMap( dominant );
+
+        this.recessive = Collections.unmodifiableMap( recessive );
+    }
+
+    public synchronized Object get( Object key )
+    {
+        Object value = dominant.get( key );
+
+        if ( value == null )
+        {
+            value = recessive.get( key );
+        }
+
+        return value;
+    }
+
+    public Set entrySet()
+    {
+        throw new UnsupportedOperationException( "Cannot enumerate properties in a composite map" );
+    }
+}