| /* |
| * 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.tools.ant.util; |
| |
| import java.util.Arrays; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| |
| /** |
| * A <CODE>ContainerMapper</CODE> that unites the results of its constituent |
| * <CODE>FileNameMapper</CODE>s into a single set of result filenames. |
| */ |
| public class CompositeMapper extends ContainerMapper { |
| |
| /** {@inheritDoc}. */ |
| public String[] mapFileName(String sourceFileName) { |
| HashSet results = new HashSet(); |
| |
| FileNameMapper mapper = null; |
| for (Iterator mIter = getMappers().iterator(); mIter.hasNext();) { |
| mapper = (FileNameMapper) (mIter.next()); |
| if (mapper != null) { |
| String[] mapped = mapper.mapFileName(sourceFileName); |
| if (mapped != null) { |
| results.addAll(Arrays.asList(mapped)); |
| } |
| } |
| } |
| return (results.size() == 0) ? null |
| : (String[]) results.toArray(new String[results.size()]); |
| } |
| |
| } |
| |