001/* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2008-2012 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 */ 020package org.sonar.plugins.findbugs; 021 022import org.apache.commons.lang.StringUtils; 023import org.sonar.api.resources.Java; 024 025public final class FindbugsAntConverter { 026 027 private FindbugsAntConverter() { 028 } 029 030 /** 031 * Convert the exclusion ant pattern to a java regexp accepted by findbugs 032 * exclusion file 033 * 034 * @param exclusion ant pattern to convert 035 * @return Exclusion pattern for findbugs 036 */ 037 public static String antToJavaRegexpConvertor(String exclusion) { 038 StringBuilder builder = new StringBuilder("~"); 039 int offset = 0; 040 // First **/ or */ is optional 041 if (exclusion.startsWith("**/")) { 042 builder.append("(.*\\.)?"); 043 offset += 3; 044 } else if (exclusion.startsWith("*/")) { 045 builder.append("([^\\\\^\\s]*\\.)?"); 046 offset += 2; 047 } 048 for (String suffix : Java.SUFFIXES) { 049 exclusion = StringUtils.removeEndIgnoreCase(exclusion, "." + suffix); 050 } 051 052 char[] array = exclusion.toCharArray(); 053 for (int i = offset; i < array.length; i++) { 054 char c = array[i]; 055 if (c == '?') { 056 builder.append('.'); 057 } else if (c == '*') { 058 if (i + 1 < array.length && array[i + 1] == '*') { 059 builder.append(".*"); 060 i++; 061 } else { 062 builder.append("[^\\\\^\\s]*"); 063 } 064 } else if (c == '/') { 065 builder.append("\\."); 066 } else { 067 builder.append(c); 068 } 069 } 070 return builder.toString(); 071 } 072}