001 /* 002 * Sonar, open source software quality management tool. 003 * Copyright (C) 2009 SonarSource SA 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 package org.sonar.api.utils; 021 022 import org.apache.commons.lang.StringUtils; 023 024 import java.util.HashMap; 025 import java.util.Map; 026 import java.util.regex.Pattern; 027 028 /** 029 * @since 1.10 030 */ 031 public class WildcardPattern { 032 033 private static final Map<String, WildcardPattern> patterns = new HashMap<String, WildcardPattern>(); 034 035 private Pattern pattern; 036 037 protected WildcardPattern(String pattern, String directorySeparator) { 038 this.pattern = Pattern.compile(toRegexp(pattern, directorySeparator)); 039 } 040 041 public boolean match(String value) { 042 return pattern.matcher(removeSlahesToIgnore(value)).matches(); 043 } 044 045 private String toRegexp(String wildcardPattern, String directorySeparator) { 046 String patternStr = removeSlahesToIgnore(wildcardPattern); 047 patternStr = StringUtils.replace(patternStr, "**/**", "**"); 048 patternStr = StringUtils.replace(patternStr, "**/", "|"); 049 patternStr = StringUtils.replace(patternStr, "/**", "|"); 050 patternStr = StringUtils.replace(patternStr, "**", "|"); 051 StringBuilder sb = new StringBuilder(); 052 053 for (char c : patternStr.toCharArray()) { 054 switch (c) { 055 case '|': 056 sb.append(".*"); 057 break; 058 case '*': 059 sb.append("[^\\").append(directorySeparator).append("]*"); 060 break; 061 case '?': 062 sb.append("[^\\").append(directorySeparator).append("]"); 063 break; 064 case '.': 065 sb.append("\\."); 066 break; 067 case '/': 068 sb.append("\\").append(directorySeparator); 069 break; 070 default: 071 sb.append(c); 072 } 073 } 074 075 return sb.toString(); 076 } 077 078 private String removeSlahesToIgnore(String wildcardPattern) { 079 String patternStr = StringUtils.removeStart(wildcardPattern, "/"); 080 return StringUtils.removeEnd(patternStr, "/"); 081 } 082 083 public static WildcardPattern create(String pattern) { 084 return create(pattern, "/"); 085 } 086 087 public static WildcardPattern[] create(String[] patterns) { 088 if (patterns==null) { 089 return new WildcardPattern[0]; 090 } 091 WildcardPattern[] exclusionPAtterns = new WildcardPattern[patterns.length]; 092 for (int i = 0; i < patterns.length; i++) { 093 exclusionPAtterns[i] = create(patterns[i]); 094 } 095 return exclusionPAtterns; 096 } 097 098 public static WildcardPattern create(String pattern, String directorySeparator) { 099 String key = pattern + directorySeparator; 100 WildcardPattern wildcardPattern = patterns.get(key); 101 if (wildcardPattern == null) { 102 wildcardPattern = new WildcardPattern(pattern, directorySeparator); 103 patterns.put(key, wildcardPattern); 104 } 105 return wildcardPattern; 106 } 107 }