1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one * 3 * or more contributor license agreements. See the NOTICE file * 4 * distributed with this work for additional information * 5 * regarding copyright ownership. The ASF licenses this file * 6 * to you under the Apache License, Version 2.0 (the * 7 * "License"); you may not use this file except in compliance * 8 * with the License. You may obtain a copy of the License at * 9 * * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, * 13 * software distributed under the License is distributed on an * 14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * 15 * KIND, either express or implied. See the License for the * 16 * specific language governing permissions and limitations * 17 * under the License. * 18 */ 19 package org.apache.rat.walker; 20 21 import java.io.File; 22 import java.util.Comparator; 23 24 class FileNameComparator implements Comparator<File> { 25 26 public int compare(File firstFile, File secondFile) { 27 int result = 0; 28 if (firstFile == null) { 29 if (secondFile != null) { 30 result = 1; 31 } 32 } else { 33 if (secondFile == null) { 34 result = -1; 35 } else { 36 final String firstName = firstFile.getName(); 37 final String secondName = secondFile.getName(); 38 result = firstName.compareTo(secondName); 39 } 40 } 41 return result; 42 } 43 44 }