001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2011 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * Sonar is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * Sonar is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public 017 * License along with Sonar; if not, write to the Free Software 018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02 019 */ 020 021 package net.sourceforge.pmd.util.filter; 022 023 import java.io.File; 024 025 public class FileExtensionFilter implements Filter<File> { 026 protected final String[] extensions; 027 protected final boolean ignoreCase; 028 029 /** 030 * Matches any files with the given extensions, ignoring case 031 */ 032 public FileExtensionFilter(String... extensions) { 033 this(true, extensions); 034 } 035 036 /** 037 * Matches any files with the given extensions, optionally ignoring case. 038 */ 039 public FileExtensionFilter(boolean ignoreCase, String... extensions) { 040 this.extensions = extensions; 041 this.ignoreCase = ignoreCase; 042 if (ignoreCase) { 043 for (int i = 0; i < this.extensions.length; i++) { 044 this.extensions[i] = this.extensions[i].toUpperCase(); 045 } 046 } 047 } 048 049 public boolean filter(File file) { 050 boolean accept = extensions == null; 051 if (!accept) { 052 for (String extension : extensions) { 053 String name = file.getName(); 054 if (ignoreCase ? name.toUpperCase().endsWith(extension) : name.endsWith(extension)) { 055 accept = true; 056 break; 057 } 058 } 059 } 060 return accept; 061 } 062 }