| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| IOCase | 
 | 
 | 2.5;2.5 | 
| 1 |  /* | |
| 2 |   * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE | |
| 3 |   * file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file | |
| 4 |   * to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the | |
| 5 |   * License. You may obtain a copy of the License at | |
| 6 |   *  | |
| 7 |   * http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 |   *  | |
| 9 |   * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | |
| 10 |   * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | |
| 11 |   * specific language governing permissions and limitations under the License. | |
| 12 |   */ | |
| 13 |  package liquibase.util.file; | |
| 14 | ||
| 15 |  import java.io.Serializable; | |
| 16 | ||
| 17 |  /** | |
| 18 |   * Enumeration of IO case sensitivity. | |
| 19 |   * <p> | |
| 20 |   * Different filing systems have different rules for case-sensitivity. Windows is case-insensitive, Unix is | |
| 21 |   * case-sensitive. | |
| 22 |   * <p> | |
| 23 |   * This class captures that difference, providing an enumeration to control how filename comparisons should be | |
| 24 |   * performed. It also provides methods that use the enumeration to perform comparisons. | |
| 25 |   * <p> | |
| 26 |   * Wherever possible, you should use the <code>check</code> methods in this class to compare filenames. | |
| 27 |   *  | |
| 28 |   * @author Stephen Colebourne | |
| 29 |   * @version $Id: IOCase.java 606345 2007-12-21 23:43:01Z ggregory $ | |
| 30 |   * @since Commons IO 1.3 | |
| 31 |   */ | |
| 32 | final class IOCase implements Serializable { | |
| 33 | ||
| 34 |      /** | |
| 35 |       * The constant for case sensitive regardless of operating system. | |
| 36 |       */ | |
| 37 | 0 |      public static final IOCase SENSITIVE = new IOCase("Sensitive", true); | 
| 38 | ||
| 39 |      /** | |
| 40 |       * The constant for case insensitive regardless of operating system. | |
| 41 |       */ | |
| 42 | 0 |      public static final IOCase INSENSITIVE = new IOCase("Insensitive", false); | 
| 43 | ||
| 44 |      /** | |
| 45 |       * The constant for case sensitivity determined by the current operating system. Windows is case-insensitive when | |
| 46 |       * comparing filenames, Unix is case-sensitive. | |
| 47 |       * <p> | |
| 48 |       * If you derialize this constant of Windows, and deserialize on Unix, or vice versa, then the value of the | |
| 49 |       * case-sensitivity flag will change. | |
| 50 |       */ | |
| 51 | 0 |      public static final IOCase SYSTEM = new IOCase("System", !FilenameUtils.isSystemWindows()); | 
| 52 | ||
| 53 |      /** Serialization version. */ | |
| 54 | private static final long serialVersionUID = -6343169151696340687L; | |
| 55 | ||
| 56 |      /** The enumeration name. */ | |
| 57 | private final String name; | |
| 58 | ||
| 59 |      /** The sensitivity flag. */ | |
| 60 | private final transient boolean sensitive; | |
| 61 | ||
| 62 |      // ----------------------------------------------------------------------- | |
| 63 |      /** | |
| 64 |       * Factory method to create an IOCase from a name. | |
| 65 |       *  | |
| 66 |       * @param name | |
| 67 |       *            the name to find | |
| 68 |       * @return the IOCase object | |
| 69 |       * @throws IllegalArgumentException | |
| 70 |       *             if the name is invalid | |
| 71 |       */ | |
| 72 | public static IOCase forName(String name) { | |
| 73 | 0 |          if (IOCase.SENSITIVE.name.equals(name)) { | 
| 74 | 0 |              return IOCase.SENSITIVE; | 
| 75 | } | |
| 76 | 0 |          if (IOCase.INSENSITIVE.name.equals(name)) { | 
| 77 | 0 |              return IOCase.INSENSITIVE; | 
| 78 | } | |
| 79 | 0 |          if (IOCase.SYSTEM.name.equals(name)) { | 
| 80 | 0 |              return IOCase.SYSTEM; | 
| 81 | } | |
| 82 | 0 |          throw new IllegalArgumentException("Invalid IOCase name: " + name); | 
| 83 | } | |
| 84 | ||
| 85 |      // ----------------------------------------------------------------------- | |
| 86 |      /** | |
| 87 |       * Private constructor. | |
| 88 |       *  | |
| 89 |       * @param name | |
| 90 |       *            the name | |
| 91 |       * @param sensitive | |
| 92 |       *            the sensitivity | |
| 93 |       */ | |
| 94 | 0 |      private IOCase(String name, boolean sensitive) { | 
| 95 | 0 |          this.name = name; | 
| 96 | 0 |          this.sensitive = sensitive; | 
| 97 | 0 |      } | 
| 98 | ||
| 99 |      /** | |
| 100 |       * Replaces the enumeration from the stream with a real one. This ensures that the correct flag is set for SYSTEM. | |
| 101 |       *  | |
| 102 |       * @return the resolved object | |
| 103 |       */ | |
| 104 |      private Object readResolve() { | |
| 105 | 0 |          return forName(name); | 
| 106 | } | |
| 107 | ||
| 108 |      // ----------------------------------------------------------------------- | |
| 109 |      /** | |
| 110 |       * Gets the name of the constant. | |
| 111 |       *  | |
| 112 |       * @return the name of the constant | |
| 113 |       */ | |
| 114 |      public String getName() { | |
| 115 | 0 |          return name; | 
| 116 | } | |
| 117 | ||
| 118 |      /** | |
| 119 |       * Does the object represent case sensitive comparison. | |
| 120 |       *  | |
| 121 |       * @return true if case sensitive | |
| 122 |       */ | |
| 123 | public boolean isCaseSensitive() { | |
| 124 | 0 |          return sensitive; | 
| 125 | } | |
| 126 | ||
| 127 |      // ----------------------------------------------------------------------- | |
| 128 |      /** | |
| 129 |       * Compares two strings using the case-sensitivity rule. | |
| 130 |       * <p> | |
| 131 |       * This method mimics {@link String#compareTo} but takes case-sensitivity into account. | |
| 132 |       *  | |
| 133 |       * @param str1 | |
| 134 |       *            the first string to compare, not null | |
| 135 |       * @param str2 | |
| 136 |       *            the second string to compare, not null | |
| 137 |       * @return true if equal using the case rules | |
| 138 |       * @throws NullPointerException | |
| 139 |       *             if either string is null | |
| 140 |       */ | |
| 141 | public int checkCompareTo(String str1, String str2) { | |
| 142 | 0 |          if (str1 == null || str2 == null) { | 
| 143 | 0 |              throw new NullPointerException("The strings must not be null"); | 
| 144 | } | |
| 145 | 0 |          return sensitive ? str1.compareTo(str2) : str1.compareToIgnoreCase(str2); | 
| 146 | } | |
| 147 | ||
| 148 |      /** | |
| 149 |       * Compares two strings using the case-sensitivity rule. | |
| 150 |       * <p> | |
| 151 |       * This method mimics {@link String#equals} but takes case-sensitivity into account. | |
| 152 |       *  | |
| 153 |       * @param str1 | |
| 154 |       *            the first string to compare, not null | |
| 155 |       * @param str2 | |
| 156 |       *            the second string to compare, not null | |
| 157 |       * @return true if equal using the case rules | |
| 158 |       * @throws NullPointerException | |
| 159 |       *             if either string is null | |
| 160 |       */ | |
| 161 | public boolean checkEquals(String str1, String str2) { | |
| 162 | 0 |          if (str1 == null || str2 == null) { | 
| 163 | 0 |              throw new NullPointerException("The strings must not be null"); | 
| 164 | } | |
| 165 | 0 |          return sensitive ? str1.equals(str2) : str1.equalsIgnoreCase(str2); | 
| 166 | } | |
| 167 | ||
| 168 |      /** | |
| 169 |       * Checks if one string starts with another using the case-sensitivity rule. | |
| 170 |       * <p> | |
| 171 |       * This method mimics {@link String#startsWith(String)} but takes case-sensitivity into account. | |
| 172 |       *  | |
| 173 |       * @param str | |
| 174 |       *            the string to check, not null | |
| 175 |       * @param start | |
| 176 |       *            the start to compare against, not null | |
| 177 |       * @return true if equal using the case rules | |
| 178 |       * @throws NullPointerException | |
| 179 |       *             if either string is null | |
| 180 |       */ | |
| 181 | public boolean checkStartsWith(String str, String start) { | |
| 182 | 0 |          return str.regionMatches(!sensitive, 0, start, 0, start.length()); | 
| 183 | } | |
| 184 | ||
| 185 |      /** | |
| 186 |       * Checks if one string ends with another using the case-sensitivity rule. | |
| 187 |       * <p> | |
| 188 |       * This method mimics {@link String#endsWith} but takes case-sensitivity into account. | |
| 189 |       *  | |
| 190 |       * @param str | |
| 191 |       *            the string to check, not null | |
| 192 |       * @param end | |
| 193 |       *            the end to compare against, not null | |
| 194 |       * @return true if equal using the case rules | |
| 195 |       * @throws NullPointerException | |
| 196 |       *             if either string is null | |
| 197 |       */ | |
| 198 | public boolean checkEndsWith(String str, String end) { | |
| 199 | 0 |          int endLen = end.length(); | 
| 200 | 0 |          return str.regionMatches(!sensitive, str.length() - endLen, end, 0, endLen); | 
| 201 | } | |
| 202 | ||
| 203 |      /** | |
| 204 |       * Checks if one string contains another at a specific index using the case-sensitivity rule. | |
| 205 |       * <p> | |
| 206 |       * This method mimics parts of {@link String#regionMatches(boolean, int, String, int, int)} but takes | |
| 207 |       * case-sensitivity into account. | |
| 208 |       *  | |
| 209 |       * @param str | |
| 210 |       *            the string to check, not null | |
| 211 |       * @param strStartIndex | |
| 212 |       *            the index to start at in str | |
| 213 |       * @param search | |
| 214 |       *            the start to search for, not null | |
| 215 |       * @return true if equal using the case rules | |
| 216 |       * @throws NullPointerException | |
| 217 |       *             if either string is null | |
| 218 |       */ | |
| 219 | public boolean checkRegionMatches(String str, int strStartIndex, String search) { | |
| 220 | 0 |          return str.regionMatches(!sensitive, strStartIndex, search, 0, search.length()); | 
| 221 | } | |
| 222 | ||
| 223 |      /** | |
| 224 |       * Converts the case of the input String to a standard format. Subsequent operations can then use standard String | |
| 225 |       * methods. | |
| 226 |       *  | |
| 227 |       * @param str | |
| 228 |       *            the string to convert, null returns null | |
| 229 |       * @return the lower-case version if case-insensitive | |
| 230 |       */ | |
| 231 |      String convertCase(String str) { | |
| 232 | 0 |          if (str == null) { | 
| 233 | 0 |              return null; | 
| 234 | } | |
| 235 | 0 |          return sensitive ? str : str.toLowerCase(); | 
| 236 | } | |
| 237 | ||
| 238 |      // ----------------------------------------------------------------------- | |
| 239 |      /** | |
| 240 |       * Gets a string describing the sensitivity. | |
| 241 |       *  | |
| 242 |       * @return a string describing the sensitivity | |
| 243 |       */ | |
| 244 |      public String toString() { | |
| 245 | 0 |          return name; | 
| 246 | } | |
| 247 | ||
| 248 | } |