| /* |
| * 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.hadoop.maven.plugin.util; |
| |
| import org.apache.maven.model.FileSet; |
| import org.codehaus.plexus.util.FileUtils; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** |
| * FileSetUtils contains helper methods for mojo implementations that need to |
| * work with a Maven FileSet. |
| */ |
| public class FileSetUtils { |
| |
| /** |
| * Returns a string containing every element of the given list, with each |
| * element separated by a comma. |
| * |
| * @param list List of all elements |
| * @return String containing every element, comma-separated |
| */ |
| private static String getCommaSeparatedList(List<String> list) { |
| StringBuilder buffer = new StringBuilder(); |
| String separator = ""; |
| for (Object e : list) { |
| buffer.append(separator).append(e); |
| separator = ","; |
| } |
| return buffer.toString(); |
| } |
| |
| /** |
| * Converts a Maven FileSet to a list of File objects. |
| * |
| * @param source FileSet to convert |
| * @return List containing every element of the FileSet as a File |
| * @throws IOException if an I/O error occurs while trying to find the files |
| */ |
| @SuppressWarnings("unchecked") |
| public static List<File> convertFileSetToFiles(FileSet source) throws IOException { |
| String includes = getCommaSeparatedList(source.getIncludes()); |
| String excludes = getCommaSeparatedList(source.getExcludes()); |
| return FileUtils.getFiles(new File(source.getDirectory()), includes, excludes); |
| } |
| } |