| /* |
| * 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 |
| * |
| * https://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.types.optional; |
| |
| import java.util.ArrayList; |
| |
| import org.apache.tools.ant.util.FileNameMapper; |
| |
| /** |
| * Script support at map time. |
| * @since Ant1.7 |
| */ |
| public class ScriptMapper extends AbstractScriptComponent implements FileNameMapper { |
| |
| private ArrayList<String> files; |
| |
| |
| /** |
| * Sets the from part of the transformation rule. |
| * |
| * @param from a string. |
| */ |
| @Override |
| public void setFrom(String from) { |
| } |
| |
| /** |
| * Sets the to part of the transformation rule. |
| * |
| * @param to a string. |
| */ |
| @Override |
| public void setTo(String to) { |
| } |
| |
| /** |
| * Reset the list of files |
| */ |
| public void clear() { |
| files = new ArrayList<>(1); |
| } |
| |
| /** |
| * Add a mapped name |
| * @param mapping the value to use. |
| */ |
| public void addMappedName(String mapping) { |
| files.add(mapping); |
| } |
| |
| /** |
| * Returns an array containing the target filename(s) for the given source |
| * file. |
| * |
| * <p>if the given rule doesn't apply to the source file, implementation |
| * must return null. SourceFileScanner will then omit the source file in |
| * question.</p> |
| * |
| * @param sourceFileName the name of the source file relative to some given |
| * basedirectory. |
| * @return an array of strings if the rule applies to the source file, or |
| * null if it does not. |
| */ |
| |
| @Override |
| public String[] mapFileName(String sourceFileName) { |
| initScriptRunner(); |
| getRunner().addBean("source", sourceFileName); |
| clear(); |
| executeScript("ant_mapper"); |
| if (files.isEmpty()) { |
| return null; |
| } |
| return files.toArray(new String[files.size()]); |
| } |
| } |