| /* |
| * 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.types.resources.comparators; |
| |
| import java.io.File; |
| import org.apache.tools.ant.types.Resource; |
| import org.apache.tools.ant.types.resources.FileResource; |
| import org.apache.tools.ant.util.FileUtils; |
| |
| /** |
| * Compares filesystem Resources. |
| * @since Ant 1.7 |
| */ |
| public class FileSystem extends ResourceComparator { |
| private static final FileUtils FILE_UTILS = FileUtils.getFileUtils(); |
| |
| /** |
| * Compare two Resources. |
| * @param foo the first Resource. |
| * @param bar the second Resource. |
| * @return a negative integer, zero, or a positive integer as the first |
| * argument is less than, equal to, or greater than the second. |
| * @throws ClassCastException if either resource is not an instance of FileResource. |
| */ |
| protected int resourceCompare(Resource foo, Resource bar) { |
| File foofile = ((FileResource) foo).getFile(); |
| File barfile = ((FileResource) bar).getFile(); |
| return foofile.equals(barfile) ? 0 |
| : FILE_UTILS.isLeadingPath(foofile, barfile) ? -1 |
| : FILE_UTILS.normalize(foofile.getAbsolutePath()).compareTo( |
| FILE_UTILS.normalize(barfile.getAbsolutePath())); |
| } |
| |
| } |