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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 | +} | |