- /*
- * Copyright 2004 The Apache Software Foundation.
- *
- * Licensed 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 {
-
- //inherit doc
- 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()]);
- }
-
- }
-