| /* |
| * 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.openejb.util; |
| |
| import java.net.URL; |
| import java.util.Comparator; |
| import java.util.List; |
| import java.util.ListIterator; |
| import java.util.ArrayList; |
| import java.io.File; |
| |
| /** |
| * @version $Rev: 1153797 $ $Date: 2011-08-04 09:09:44 +0000 (Thu, 04 Aug 2011) $ |
| */ |
| public class UrlComparator implements Comparator<URL> { |
| private File dir; |
| private List<String> rootPath; |
| |
| public UrlComparator(File directory) { |
| dir = directory; |
| rootPath = path(dir); |
| } |
| |
| public UrlComparator(URL base) { |
| this(URLs.toFile(base)); |
| } |
| |
| public int compare(URL a, URL b) { |
| return score(b) - score(a); |
| } |
| |
| private int score(URL url){ |
| File file = URLs.toFile(url); |
| List<String> filePath = path(file); |
| int matches = 0; |
| |
| ListIterator<String> a = rootPath.listIterator(); |
| ListIterator<String> b = filePath.listIterator(); |
| while(a.hasNext() && b.hasNext()) { |
| String nameA = a.next(); |
| String nameB = b.next(); |
| |
| if (nameA.equals(nameB)) { |
| matches++; |
| } else { |
| break; |
| } |
| } |
| |
| return matches; |
| } |
| |
| private List<String> path(File file){ |
| ArrayList<String> path = new ArrayList<String>(); |
| path(file, path); |
| return path; |
| } |
| |
| private void path(File file, List<String> path){ |
| if (file == null) return; |
| |
| path(file.getParentFile(), path); |
| |
| path.add(file.getName()); |
| } |
| } |