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Diffstat (limited to '')
-rw-r--r-- | maven-plugins/tags/tuscany-zip-plugin-alpha3/src/main/java/org/apache/tuscany/maven/zip/CompositeMap.java | 61 |
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" ); + } +} |