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| 1 | /* | ||
| 2 | * Copyright (c) 1999, 2004, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package sun.misc; | ||
| 27 | |||
| 28 | import java.util.StringTokenizer; | ||
| 29 | import java.util.jar.Attributes; | ||
| 30 | import java.util.jar.Attributes.Name; | ||
| 31 | import java.util.ResourceBundle; | ||
| 32 | import java.util.MissingResourceException; | ||
| 33 | import java.text.MessageFormat; | ||
| 34 | import java.lang.Character.*; | ||
| 35 | |||
| 36 | |||
| 37 | /** | ||
| 38 | * This class holds all necessary information to install or | ||
| 39 | * upgrade a extension on the user's disk | ||
| 40 | * | ||
| 41 | * @author Jerome Dochez | ||
| 42 | */ | ||
| 43 | public class ExtensionInfo { | ||
| 44 | |||
| 45 | /** | ||
| 46 | * <p> | ||
| 47 | * public static values returned by the isCompatible method | ||
| 48 | * </p> | ||
| 49 | */ | ||
| 50 | public static final int COMPATIBLE = 0; | ||
| 51 | public static final int REQUIRE_SPECIFICATION_UPGRADE = 1; | ||
| 52 | public static final int REQUIRE_IMPLEMENTATION_UPGRADE = 2; | ||
| 53 | public static final int REQUIRE_VENDOR_SWITCH = 3; | ||
| 54 | public static final int INCOMPATIBLE = 4; | ||
| 55 | |||
| 56 | /** | ||
| 57 | * <p> | ||
| 58 | * attributes fully describer an extension. The underlying described | ||
| 59 | * extension may be installed and requested. | ||
| 60 | * <p> | ||
| 61 | */ | ||
| 62 | public String title; | ||
| 63 | public String name; | ||
| 64 | public String specVersion; | ||
| 65 | public String specVendor; | ||
| 66 | public String implementationVersion; | ||
| 67 | public String vendor; | ||
| 68 | public String vendorId; | ||
| 69 | public String url; | ||
| 70 | |||
| 71 | // For I18N support | ||
| 72 | private static final ResourceBundle rb = | ||
| 73 | ResourceBundle.getBundle("sun.misc.resources.Messages"); | ||
| 74 | |||
| 75 | |||
| 76 | /** | ||
| 77 | * <p> | ||
| 78 | * Create a new uninitialized extension information object | ||
| 79 | * </p> | ||
| 80 | */ | ||
| 81 | public ExtensionInfo() { | ||
| 82 | } | ||
| 83 | |||
| 84 | /** | ||
| 85 | * <p> | ||
| 86 | * Create and initialize an extension information object. | ||
| 87 | * The initialization uses the attributes passed as being | ||
| 88 | * the content of a manifest file to load the extension | ||
| 89 | * information from. | ||
| 90 | * Since manifest file may contain information on several | ||
| 91 | * extension they may depend on, the extension key parameter | ||
| 92 | * is prepanded to the attribute name to make the key used | ||
| 93 | * to retrieve the attribute from the manifest file | ||
| 94 | * <p> | ||
| 95 | * @param extensionKey unique extension key in the manifest | ||
| 96 | * @param attr Attributes of a manifest file | ||
| 97 | */ | ||
| 98 | public ExtensionInfo(String extensionKey, Attributes attr) | ||
| 99 | throws NullPointerException | ||
| 100 | { | ||
| 101 | String s; | ||
| 102 | if (extensionKey!=null) { | ||
| 103 | s = extensionKey + "-"; | ||
| 104 | } else { | ||
| 105 | s =""; | ||
| 106 | } | ||
| 107 | |||
| 108 | String attrKey = s + Name.EXTENSION_NAME.toString(); | ||
| 109 | name = attr.getValue(attrKey); | ||
| 110 | if (name != null) | ||
| 111 | name = name.trim(); | ||
| 112 | |||
| 113 | attrKey = s + Name.SPECIFICATION_TITLE.toString(); | ||
| 114 | title = attr.getValue(attrKey); | ||
| 115 | if (title != null) | ||
| 116 | title = title.trim(); | ||
| 117 | |||
| 118 | attrKey = s + Name.SPECIFICATION_VERSION.toString(); | ||
| 119 | specVersion = attr.getValue(attrKey); | ||
| 120 | if (specVersion != null) | ||
| 121 | specVersion = specVersion.trim(); | ||
| 122 | |||
| 123 | attrKey = s + Name.SPECIFICATION_VENDOR.toString(); | ||
| 124 | specVendor = attr.getValue(attrKey); | ||
| 125 | if (specVendor != null) | ||
| 126 | specVendor = specVendor.trim(); | ||
| 127 | |||
| 128 | attrKey = s + Name.IMPLEMENTATION_VERSION.toString(); | ||
| 129 | implementationVersion = attr.getValue(attrKey); | ||
| 130 | if (implementationVersion != null) | ||
| 131 | implementationVersion = implementationVersion.trim(); | ||
| 132 | |||
| 133 | attrKey = s + Name.IMPLEMENTATION_VENDOR.toString(); | ||
| 134 | vendor = attr.getValue(attrKey); | ||
| 135 | if (vendor != null) | ||
| 136 | vendor = vendor.trim(); | ||
| 137 | |||
| 138 | attrKey = s + Name.IMPLEMENTATION_VENDOR_ID.toString(); | ||
| 139 | vendorId = attr.getValue(attrKey); | ||
| 140 | if (vendorId != null) | ||
| 141 | vendorId = vendorId.trim(); | ||
| 142 | |||
| 143 | attrKey =s + Name.IMPLEMENTATION_URL.toString(); | ||
| 144 | url = attr.getValue(attrKey); | ||
| 145 | if (url != null) | ||
| 146 | url = url.trim(); | ||
| 147 | } | ||
| 148 | |||
| 149 | /** | ||
| 150 | * <p> | ||
| 151 | * @return true if the extension described by this extension information | ||
| 152 | * is compatible with the extension described by the extension | ||
| 153 | * information passed as a parameter | ||
| 154 | * </p> | ||
| 155 | * | ||
| 156 | * @param the requested extension information to compare to | ||
| 157 | */ | ||
| 158 | public int isCompatibleWith(ExtensionInfo ei) { | ||
| 159 | |||
| 160 | if (name == null || ei.name == null) | ||
| 161 | return INCOMPATIBLE; | ||
| 162 | if (name.compareTo(ei.name)==0) { | ||
| 163 | // is this true, if not spec version is specified, we consider | ||
| 164 | // the value as being "any". | ||
| 165 | if (specVersion == null || ei.specVersion == null) | ||
| 166 | return COMPATIBLE; | ||
| 167 | |||
| 168 | int version = compareExtensionVersion(specVersion, ei.specVersion); | ||
| 169 | if (version<0) { | ||
| 170 | // this extension specification is "older" | ||
| 171 | if (vendorId != null && ei.vendorId !=null) { | ||
| 172 | if (vendorId.compareTo(ei.vendorId)!=0) { | ||
| 173 | return REQUIRE_VENDOR_SWITCH; | ||
| 174 | } | ||
| 175 | } | ||
| 176 | return REQUIRE_SPECIFICATION_UPGRADE; | ||
| 177 | } else { | ||
| 178 | // the extension spec is compatible, let's look at the | ||
| 179 | // implementation attributes | ||
| 180 | if (vendorId != null && ei.vendorId != null) { | ||
| 181 | // They care who provides the extension | ||
| 182 | if (vendorId.compareTo(ei.vendorId)!=0) { | ||
| 183 | // They want to use another vendor implementation | ||
| 184 | return REQUIRE_VENDOR_SWITCH; | ||
| 185 | } else { | ||
| 186 | // Vendor matches, let's see the implementation version | ||
| 187 | if (implementationVersion != null && ei.implementationVersion != null) { | ||
| 188 | // they care about the implementation version | ||
| 189 | version = compareExtensionVersion(implementationVersion, ei.implementationVersion); | ||
| 190 | if (version<0) { | ||
| 191 | // This extension is an older implementation | ||
| 192 | return REQUIRE_IMPLEMENTATION_UPGRADE; | ||
| 193 | } | ||
| 194 | } | ||
| 195 | } | ||
| 196 | } | ||
| 197 | // All othe cases, we consider the extensions to be compatible | ||
| 198 | return COMPATIBLE; | ||
| 199 | } | ||
| 200 | } | ||
| 201 | return INCOMPATIBLE; | ||
| 202 | } | ||
| 203 | |||
| 204 | /** | ||
| 205 | * <p> | ||
| 206 | * helper method to print sensible information on the undelying described | ||
| 207 | * extension | ||
| 208 | * </p> | ||
| 209 | */ | ||
| 210 | public String toString() { | ||
| 211 | return "Extension : title(" + title + "), name(" + name + "), spec vendor(" + | ||
| 212 | specVendor + "), spec version(" + specVersion + "), impl vendor(" + | ||
| 213 | vendor + "), impl vendor id(" + vendorId + "), impl version(" + | ||
| 214 | implementationVersion + "), impl url(" + url + ")"; | ||
| 215 | } | ||
| 216 | |||
| 217 | /* | ||
| 218 | * <p> | ||
| 219 | * helper method to compare two versions. | ||
| 220 | * version are in the x.y.z.t pattern. | ||
| 221 | * </p> | ||
| 222 | * @param source version to compare to | ||
| 223 | * @param target version used to compare against | ||
| 224 | * @return < 0 if source < version | ||
| 225 | * > 0 if source > version | ||
| 226 | * = 0 if source = version | ||
| 227 | */ | ||
| 228 | private int compareExtensionVersion(String source, String target) | ||
| 229 | throws NumberFormatException | ||
| 230 | { | ||
| 231 | source = source.toLowerCase(); | ||
| 232 | target = target.toLowerCase(); | ||
| 233 | |||
| 234 | return strictCompareExtensionVersion(source, target); | ||
| 235 | } | ||
| 236 | |||
| 237 | |||
| 238 | /* | ||
| 239 | * <p> | ||
| 240 | * helper method to compare two versions. | ||
| 241 | * version are in the x.y.z.t pattern. | ||
| 242 | * </p> | ||
| 243 | * @param source version to compare to | ||
| 244 | * @param target version used to compare against | ||
| 245 | * @return < 0 if source < version | ||
| 246 | * > 0 if source > version | ||
| 247 | * = 0 if source = version | ||
| 248 | */ | ||
| 249 | private int strictCompareExtensionVersion(String source, String target) | ||
| 250 | throws NumberFormatException | ||
| 251 | { | ||
| 252 | if (source.equals(target)) | ||
| 253 | return 0; | ||
| 254 | |||
| 255 | StringTokenizer stk = new StringTokenizer(source, ".,"); | ||
| 256 | StringTokenizer ttk = new StringTokenizer(target, ".,"); | ||
| 257 | |||
| 258 | // Compare number | ||
| 259 | int n = 0, m = 0, result = 0; | ||
| 260 | |||
| 261 | // Convert token into meaning number for comparision | ||
| 262 | if (stk.hasMoreTokens()) | ||
| 263 | n = convertToken(stk.nextToken().toString()); | ||
| 264 | |||
| 265 | // Convert token into meaning number for comparision | ||
| 266 | if (ttk.hasMoreTokens()) | ||
| 267 | m = convertToken(ttk.nextToken().toString()); | ||
| 268 | |||
| 269 | if (n > m) | ||
| 270 | return 1; | ||
| 271 | else if (m > n) | ||
| 272 | return -1; | ||
| 273 | else | ||
| 274 | { | ||
| 275 | // Look for index of "." in the string | ||
| 276 | int sIdx = source.indexOf("."); | ||
| 277 | int tIdx = target.indexOf("."); | ||
| 278 | |||
| 279 | if (sIdx == -1) | ||
| 280 | sIdx = source.length() - 1; | ||
| 281 | |||
| 282 | if (tIdx == -1) | ||
| 283 | tIdx = target.length() - 1; | ||
| 284 | |||
| 285 | return strictCompareExtensionVersion(source.substring(sIdx + 1), | ||
| 286 | target.substring(tIdx + 1)); | ||
| 287 | } | ||
| 288 | } | ||
| 289 | |||
| 290 | private int convertToken(String token) | ||
| 291 | { | ||
| 292 | if (token == null || token.equals("")) | ||
| 293 | return 0; | ||
| 294 | |||
| 295 | int charValue = 0; | ||
| 296 | int charVersion = 0; | ||
| 297 | int patchVersion = 0; | ||
| 298 | int strLength = token.length(); | ||
| 299 | int endIndex = strLength; | ||
| 300 | char lastChar; | ||
| 301 | |||
| 302 | Object[] args = {name}; | ||
| 303 | MessageFormat mf = new MessageFormat(rb.getString("optpkg.versionerror")); | ||
| 304 | String versionError = mf.format(args); | ||
| 305 | |||
| 306 | // Look for "-" for pre-release | ||
| 307 | int prIndex = token.indexOf("-"); | ||
| 308 | |||
| 309 | // Look for "_" for patch release | ||
| 310 | int patchIndex = token.indexOf("_"); | ||
| 311 | |||
| 312 | if (prIndex == -1 && patchIndex == -1) | ||
| 313 | { | ||
| 314 | // This is a FCS release | ||
| 315 | try { | ||
| 316 | return Integer.parseInt(token) * 100; | ||
| 317 | } catch (NumberFormatException e) { | ||
| 318 | System.out.println(versionError); | ||
| 319 | return 0; | ||
| 320 | } | ||
| 321 | } | ||
| 322 | else if (patchIndex != -1) | ||
| 323 | { | ||
| 324 | // This is a patch (update) release | ||
| 325 | int prversion; | ||
| 326 | try { | ||
| 327 | // Obtain the version | ||
| 328 | prversion = Integer.parseInt(token.substring(0, patchIndex)); | ||
| 329 | |||
| 330 | // Check to see if the patch version is in the n.n.n_nnl format (special release) | ||
| 331 | lastChar = token.charAt(strLength-1); | ||
| 332 | if (Character.isLetter(lastChar)) { | ||
| 333 | // letters a-z have values from 10-35 | ||
| 334 | charValue = Character.getNumericValue(lastChar); | ||
| 335 | endIndex = strLength-1; | ||
| 336 | |||
| 337 | // Obtain the patch version id | ||
| 338 | patchVersion = Integer.parseInt(token.substring(patchIndex+1, endIndex)); | ||
| 339 | |||
| 340 | if (charValue >= Character.getNumericValue('a') && charValue <= Character.getNumericValue('z')) { | ||
| 341 | // This is a special release | ||
| 342 | charVersion = (patchVersion * 100) + charValue; | ||
| 343 | } else { | ||
| 344 | // character is not a a-z letter, ignore | ||
| 345 | charVersion = 0; | ||
| 346 | System.out.println(versionError); | ||
| 347 | } | ||
| 348 | } else { | ||
| 349 | // This is a regular update release. Obtain the patch version id | ||
| 350 | patchVersion = Integer.parseInt(token.substring(patchIndex+1, endIndex)); | ||
| 351 | } | ||
| 352 | } catch (NumberFormatException e) { | ||
| 353 | System.out.println(versionError); | ||
| 354 | return 0; | ||
| 355 | } | ||
| 356 | return prversion * 100 + (patchVersion + charVersion); | ||
| 357 | } | ||
| 358 | else | ||
| 359 | { | ||
| 360 | //This is a milestone release, either a early access, alpha, beta, or RC | ||
| 361 | |||
| 362 | // Obtain the version | ||
| 363 | int mrversion; | ||
| 364 | try { | ||
| 365 | mrversion = Integer.parseInt(token.substring(0, prIndex)); | ||
| 366 | } catch (NumberFormatException e) { | ||
| 367 | System.out.println(versionError); | ||
| 368 | return 0; | ||
| 369 | } | ||
| 370 | |||
| 371 | // Obtain the patch version string, including the milestone + version | ||
| 372 | String prString = token.substring(prIndex + 1); | ||
| 373 | |||
| 374 | // Milestone version | ||
| 375 | String msVersion = ""; | ||
| 376 | int delta = 0; | ||
| 377 | |||
| 378 | if (prString.indexOf("ea") != -1) | ||
| 379 | { | ||
| 380 | msVersion = prString.substring(2); | ||
| 381 | delta = 50; | ||
| 382 | } | ||
| 383 | else if (prString.indexOf("alpha") != -1) | ||
| 384 | { | ||
| 385 | msVersion = prString.substring(5); | ||
| 386 | delta = 40; | ||
| 387 | } | ||
| 388 | else if (prString.indexOf("beta") != -1) | ||
| 389 | { | ||
| 390 | msVersion = prString.substring(4); | ||
| 391 | delta = 30; | ||
| 392 | } | ||
| 393 | else if (prString.indexOf("rc") != -1) | ||
| 394 | { | ||
| 395 | msVersion = prString.substring(2); | ||
| 396 | delta = 20; | ||
| 397 | } | ||
| 398 | |||
| 399 | if (msVersion == null || msVersion.equals("")) | ||
| 400 | { | ||
| 401 | // No version after the milestone, assume 0 | ||
| 402 | return mrversion * 100 - delta ; | ||
| 403 | } | ||
| 404 | else | ||
| 405 | { | ||
| 406 | // Convert the milestone version | ||
| 407 | try { | ||
| 408 | return mrversion * 100 - delta + Integer.parseInt(msVersion); | ||
| 409 | } catch (NumberFormatException e) { | ||
| 410 | System.out.println(versionError); | ||
| 411 | return 0; | ||
| 412 | } | ||
| 413 | } | ||
| 414 | } | ||
| 415 | } | ||
| 416 | } | ||