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| 1 | +/* | |
| 2 | + * Copyright (c) 1996, 2005, 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.tools.serialver; | |
| 27 | + | |
| 28 | +import java.io.*; | |
| 29 | +import java.awt.*; | |
| 30 | +import java.applet.*; | |
| 31 | +import java.io.ObjectStreamClass; | |
| 32 | +import java.util.Properties; | |
| 33 | +import java.text.MessageFormat; | |
| 34 | +import java.util.ResourceBundle; | |
| 35 | +import java.util.MissingResourceException; | |
| 36 | +import java.net.URLClassLoader; | |
| 37 | +import java.net.URL; | |
| 38 | +import java.net.MalformedURLException; | |
| 39 | +import java.util.StringTokenizer; | |
| 40 | +import sun.net.www.ParseUtil; | |
| 41 | + | |
| 42 | +public class SerialVer extends Applet { | |
| 43 | + GridBagLayout gb; | |
| 44 | + TextField classname_t; | |
| 45 | + Button show_b; | |
| 46 | + TextField serialversion_t; | |
| 47 | + Label footer_l; | |
| 48 | + | |
| 49 | + private static final long serialVersionUID = 7666909783837760853L; | |
| 50 | + | |
| 51 | + public synchronized void init() { | |
| 52 | + gb = new GridBagLayout(); | |
| 53 | + setLayout(gb); | |
| 54 | + | |
| 55 | + GridBagConstraints c = new GridBagConstraints(); | |
| 56 | + c.fill = GridBagConstraints.BOTH; | |
| 57 | + | |
| 58 | + Label l1 = new Label(Res.getText("FullClassName")); | |
| 59 | + l1.setAlignment(Label.RIGHT); | |
| 60 | + gb.setConstraints(l1, c); | |
| 61 | + add(l1); | |
| 62 | + | |
| 63 | + classname_t = new TextField(20); | |
| 64 | + c.gridwidth = GridBagConstraints.RELATIVE; | |
| 65 | + c.weightx = 1.0; | |
| 66 | + gb.setConstraints(classname_t, c); | |
| 67 | + add(classname_t); | |
| 68 | + | |
| 69 | + show_b = new Button(Res.getText("Show")); | |
| 70 | + c.gridwidth = GridBagConstraints.REMAINDER; | |
| 71 | + c.weightx = 0.0; /* Don't grow the button */ | |
| 72 | + gb.setConstraints(show_b, c); | |
| 73 | + add(show_b); | |
| 74 | + | |
| 75 | + Label l2 = new Label(Res.getText("SerialVersion")); | |
| 76 | + l2.setAlignment(Label.RIGHT); | |
| 77 | + c.gridwidth = 1; | |
| 78 | + gb.setConstraints(l2, c); | |
| 79 | + add(l2); | |
| 80 | + | |
| 81 | + serialversion_t = new TextField(50); | |
| 82 | + serialversion_t.setEditable(false); | |
| 83 | + c.gridwidth = GridBagConstraints.REMAINDER; | |
| 84 | + gb.setConstraints(serialversion_t, c); | |
| 85 | + add(serialversion_t); | |
| 86 | + | |
| 87 | + footer_l = new Label(); | |
| 88 | + c.gridwidth = GridBagConstraints.REMAINDER; | |
| 89 | + gb.setConstraints(footer_l, c); | |
| 90 | + add(footer_l); | |
| 91 | + | |
| 92 | + /* Give the focus to the type-in area */ | |
| 93 | + classname_t.requestFocus(); | |
| 94 | + } | |
| 95 | + | |
| 96 | + public void start() { | |
| 97 | + /* Give the focus to the type-in area */ | |
| 98 | + classname_t.requestFocus(); | |
| 99 | + } | |
| 100 | + | |
| 101 | + public boolean action(Event ev, Object obj) { | |
| 102 | + if (ev.target == classname_t) { | |
| 103 | + show((String)ev.arg); | |
| 104 | + return true; | |
| 105 | + } else if (ev.target == show_b) { | |
| 106 | + show(classname_t.getText()); | |
| 107 | + return true; | |
| 108 | + } | |
| 109 | + return false; | |
| 110 | + } | |
| 111 | + | |
| 112 | + | |
| 113 | + public boolean handleEvent(Event ev) { | |
| 114 | + boolean rc = super.handleEvent(ev); | |
| 115 | + return rc; | |
| 116 | + } | |
| 117 | + | |
| 118 | + /** | |
| 119 | + * Lookup the specified classname and display it. | |
| 120 | + */ | |
| 121 | + void show(String classname) { | |
| 122 | + try { | |
| 123 | + footer_l.setText(""); // Clear the message | |
| 124 | + serialversion_t.setText(""); // clear the last value | |
| 125 | + | |
| 126 | + if (classname.equals("")) { | |
| 127 | + return; | |
| 128 | + } | |
| 129 | + | |
| 130 | + String s = serialSyntax(classname); | |
| 131 | + if (s != null) { | |
| 132 | + serialversion_t.setText(s); | |
| 133 | + } else { | |
| 134 | + footer_l.setText(Res.getText("NotSerializable", classname)); | |
| 135 | + } | |
| 136 | + } catch (ClassNotFoundException cnf) { | |
| 137 | + footer_l.setText(Res.getText("ClassNotFound", classname)); | |
| 138 | + } | |
| 139 | + } | |
| 140 | + | |
| 141 | + /* | |
| 142 | + * A class loader that will load from the CLASSPATH environment | |
| 143 | + * variable set by the user. | |
| 144 | + */ | |
| 145 | + static URLClassLoader loader = null; | |
| 146 | + | |
| 147 | + /* | |
| 148 | + * Create a URL class loader that will load classes from the | |
| 149 | + * specified classpath. | |
| 150 | + */ | |
| 151 | + static void initializeLoader(String cp) | |
| 152 | + throws MalformedURLException, IOException { | |
| 153 | + URL[] urls; | |
| 154 | + StringTokenizer st = new StringTokenizer(cp, File.pathSeparator); | |
| 155 | + int count = st.countTokens(); | |
| 156 | + urls = new URL[count]; | |
| 157 | + for (int i = 0; i < count; i++) { | |
| 158 | + urls[i] = ParseUtil.fileToEncodedURL( | |
| 159 | + new File(new File(st.nextToken()).getCanonicalPath())); | |
| 160 | + } | |
| 161 | + loader = new URLClassLoader(urls); | |
| 162 | + } | |
| 163 | + | |
| 164 | + /* | |
| 165 | + * From the classname find the serialVersionUID string formatted | |
| 166 | + * for to be copied to a java class. | |
| 167 | + */ | |
| 168 | + static String serialSyntax(String classname) throws ClassNotFoundException { | |
| 169 | + String ret = null; | |
| 170 | + boolean classFound = false; | |
| 171 | + | |
| 172 | + // If using old style of qualifyling inner classes with '$'s. | |
| 173 | + if (classname.indexOf('$') != -1) { | |
| 174 | + ret = resolveClass(classname); | |
| 175 | + } else { | |
| 176 | + /* Try to resolve the fully qualified name and if that fails, start | |
| 177 | + * replacing the '.'s with '$'s starting from the last '.', until | |
| 178 | + * the class is resolved. | |
| 179 | + */ | |
| 180 | + try { | |
| 181 | + ret = resolveClass(classname); | |
| 182 | + classFound = true; | |
| 183 | + } catch (ClassNotFoundException e) { | |
| 184 | + /* Class not found so far */ | |
| 185 | + } | |
| 186 | + if (!classFound) { | |
| 187 | + StringBuffer workBuffer = new StringBuffer(classname); | |
| 188 | + String workName = workBuffer.toString(); | |
| 189 | + int i; | |
| 190 | + while ((i = workName.lastIndexOf('.')) != -1 && !classFound) { | |
| 191 | + workBuffer.setCharAt(i, '$'); | |
| 192 | + try { | |
| 193 | + workName = workBuffer.toString(); | |
| 194 | + ret = resolveClass(workName); | |
| 195 | + classFound = true; | |
| 196 | + } catch (ClassNotFoundException e) { | |
| 197 | + /* Continue searching */ | |
| 198 | + } | |
| 199 | + } | |
| 200 | + } | |
| 201 | + if (!classFound) { | |
| 202 | + throw new ClassNotFoundException(); | |
| 203 | + } | |
| 204 | + } | |
| 205 | + return ret; | |
| 206 | + } | |
| 207 | + | |
| 208 | + static String resolveClass(String classname) throws ClassNotFoundException { | |
| 209 | + Class cl = Class.forName(classname, false, loader); | |
| 210 | + ObjectStreamClass desc = ObjectStreamClass.lookup(cl); | |
| 211 | + if (desc != null) { | |
| 212 | + return " static final long serialVersionUID = " + | |
| 213 | + desc.getSerialVersionUID() + "L;"; | |
| 214 | + } else { | |
| 215 | + return null; | |
| 216 | + } | |
| 217 | + } | |
| 218 | + | |
| 219 | + | |
| 220 | + public static void main(String[] args) { | |
| 221 | + boolean show = false; | |
| 222 | + String envcp = null; | |
| 223 | + int i = 0; | |
| 224 | + | |
| 225 | + if (args.length == 0) { | |
| 226 | + usage(); | |
| 227 | + System.exit(1); | |
| 228 | + } | |
| 229 | + | |
| 230 | + for (i = 0; i < args.length; i++) { | |
| 231 | + if (args[i].equals("-show")) { | |
| 232 | + show = true; | |
| 233 | + } else if (args[i].equals("-classpath")) { | |
| 234 | + if ((i+1 == args.length) || args[i+1].startsWith("-")) { | |
| 235 | + System.err.println(Res.getText("error.missing.classpath")); | |
| 236 | + usage(); | |
| 237 | + System.exit(1); | |
| 238 | + } | |
| 239 | + envcp = new String(args[i+1]); | |
| 240 | + i++; | |
| 241 | + } else if (args[i].startsWith("-")) { | |
| 242 | + System.err.println(Res.getText("invalid.flag", args[i])); | |
| 243 | + usage(); | |
| 244 | + System.exit(1); | |
| 245 | + } else { | |
| 246 | + break; // drop into processing class names | |
| 247 | + } | |
| 248 | + } | |
| 249 | + | |
| 250 | + | |
| 251 | + /* | |
| 252 | + * Get user's CLASSPATH environment variable, if the -classpath option | |
| 253 | + * is not defined, and make a loader that can read from that path. | |
| 254 | + */ | |
| 255 | + if (envcp == null) { | |
| 256 | + envcp = System.getProperty("env.class.path"); | |
| 257 | + /* | |
| 258 | + * If environment variable not set, add current directory to path. | |
| 259 | + */ | |
| 260 | + if (envcp == null) { | |
| 261 | + envcp = "."; | |
| 262 | + } | |
| 263 | + } | |
| 264 | + | |
| 265 | + try { | |
| 266 | + initializeLoader(envcp); | |
| 267 | + } catch (MalformedURLException mue) { | |
| 268 | + System.err.println(Res.getText("error.parsing.classpath", envcp)); | |
| 269 | + System.exit(2); | |
| 270 | + } catch (IOException ioe) { | |
| 271 | + System.err.println(Res.getText("error.parsing.classpath", envcp)); | |
| 272 | + System.exit(3); | |
| 273 | + } | |
| 274 | + | |
| 275 | + if (!show) { | |
| 276 | + /* | |
| 277 | + * Check if there are any class names specified, if it is not a | |
| 278 | + * invocation with the -show option. | |
| 279 | + */ | |
| 280 | + if (i == args.length) { | |
| 281 | + usage(); | |
| 282 | + System.exit(1); | |
| 283 | + } | |
| 284 | + | |
| 285 | + /* | |
| 286 | + * The rest of the parameters are classnames. | |
| 287 | + */ | |
| 288 | + boolean exitFlag = false; | |
| 289 | + for (i = i; i < args.length; i++ ) { | |
| 290 | + try { | |
| 291 | + String syntax = serialSyntax(args[i]); | |
| 292 | + if (syntax != null) | |
| 293 | + System.out.println(args[i] + ":" + syntax); | |
| 294 | + else { | |
| 295 | + System.err.println(Res.getText("NotSerializable", | |
| 296 | + args[i])); | |
| 297 | + exitFlag = true; | |
| 298 | + } | |
| 299 | + } catch (ClassNotFoundException cnf) { | |
| 300 | + System.err.println(Res.getText("ClassNotFound", args[i])); | |
| 301 | + exitFlag = true; | |
| 302 | + } | |
| 303 | + } | |
| 304 | + if (exitFlag) { | |
| 305 | + System.exit(1); | |
| 306 | + } | |
| 307 | + } else { | |
| 308 | + if (i < args.length) { | |
| 309 | + System.err.println(Res.getText("ignoring.classes")); | |
| 310 | + System.exit(1); | |
| 311 | + } | |
| 312 | + Frame f = new SerialVerFrame(); | |
| 313 | + // f.setLayout(new FlowLayout()); | |
| 314 | + SerialVer sv = new SerialVer(); | |
| 315 | + sv.init(); | |
| 316 | + | |
| 317 | + f.add("Center", sv); | |
| 318 | + f.pack(); | |
| 319 | + f.show(); | |
| 320 | + } | |
| 321 | + } | |
| 322 | + | |
| 323 | + | |
| 324 | + /** | |
| 325 | + * Usage | |
| 326 | + */ | |
| 327 | + public static void usage() { | |
| 328 | + System.err.println(Res.getText("usage")); | |
| 329 | + } | |
| 330 | + | |
| 331 | +} | |
| 332 | + | |
| 333 | +/** | |
| 334 | + * Top level frame so serialVer can be run as an main program | |
| 335 | + * and have an exit menu item. | |
| 336 | + */ | |
| 337 | +class SerialVerFrame extends Frame { | |
| 338 | + MenuBar menu_mb; | |
| 339 | + Menu file_m; | |
| 340 | + MenuItem exit_i; | |
| 341 | + | |
| 342 | + private static final long serialVersionUID = -7248105987187532533L; | |
| 343 | + | |
| 344 | + /* | |
| 345 | + * Construct a new Frame with title and menu. | |
| 346 | + */ | |
| 347 | + SerialVerFrame() { | |
| 348 | + super(Res.getText("SerialVersionInspector")); | |
| 349 | + | |
| 350 | + /* Create the file menu */ | |
| 351 | + file_m = new Menu(Res.getText("File")); | |
| 352 | + file_m.add(exit_i = new MenuItem(Res.getText("Exit"))); | |
| 353 | + | |
| 354 | + /* Now add the file menu to the menu bar */ | |
| 355 | + menu_mb = new MenuBar(); | |
| 356 | + menu_mb.add(file_m); | |
| 357 | + | |
| 358 | + /* Add the menubar to the frame */ | |
| 359 | + // Bug in JDK1.1 setMenuBar(menu_mb); | |
| 360 | + } | |
| 361 | + | |
| 362 | + /* | |
| 363 | + * Handle a window destroy event by exiting. | |
| 364 | + */ | |
| 365 | + public boolean handleEvent(Event e) { | |
| 366 | + if (e.id == Event.WINDOW_DESTROY) { | |
| 367 | + exit(0); | |
| 368 | + } | |
| 369 | + return super.handleEvent(e); | |
| 370 | + } | |
| 371 | + /* | |
| 372 | + * Handle an Exit event by exiting. | |
| 373 | + */ | |
| 374 | + public boolean action(Event ev, Object obj) { | |
| 375 | + if (ev.target == exit_i) { | |
| 376 | + exit(0); | |
| 377 | + } | |
| 378 | + return false; | |
| 379 | + } | |
| 380 | + | |
| 381 | + /* | |
| 382 | + * Cleanup and exit. | |
| 383 | + */ | |
| 384 | + void exit(int ret) { | |
| 385 | + System.exit(ret); | |
| 386 | + } | |
| 387 | + | |
| 388 | +} | |
| 389 | + | |
| 390 | +/** | |
| 391 | + * Utility for integrating with serialver and for localization. | |
| 392 | + * Handle Resources. Access to error and warning counts. | |
| 393 | + * Message formatting. | |
| 394 | + * | |
| 395 | + * @see java.util.ResourceBundle | |
| 396 | + * @see java.text.MessageFormat | |
| 397 | + */ | |
| 398 | +class Res { | |
| 399 | + | |
| 400 | + private static ResourceBundle messageRB; | |
| 401 | + | |
| 402 | + /** | |
| 403 | + * Initialize ResourceBundle | |
| 404 | + */ | |
| 405 | + static void initResource() { | |
| 406 | + try { | |
| 407 | + messageRB = | |
| 408 | + ResourceBundle.getBundle("sun.tools.serialver.resources.serialver"); | |
| 409 | + } catch (MissingResourceException e) { | |
| 410 | + throw new Error("Fatal: Resource for serialver is missing"); | |
| 411 | + } | |
| 412 | + } | |
| 413 | + | |
| 414 | + /** | |
| 415 | + * get and format message string from resource | |
| 416 | + * | |
| 417 | + * @param key selects message from resource | |
| 418 | + */ | |
| 419 | + static String getText(String key) { | |
| 420 | + return getText(key, (String)null); | |
| 421 | + } | |
| 422 | + | |
| 423 | + /** | |
| 424 | + * get and format message string from resource | |
| 425 | + * | |
| 426 | + * @param key selects message from resource | |
| 427 | + * @param a1 first argument | |
| 428 | + */ | |
| 429 | + static String getText(String key, String a1) { | |
| 430 | + return getText(key, a1, null); | |
| 431 | + } | |
| 432 | + | |
| 433 | + /** | |
| 434 | + * get and format message string from resource | |
| 435 | + * | |
| 436 | + * @param key selects message from resource | |
| 437 | + * @param a1 first argument | |
| 438 | + * @param a2 second argument | |
| 439 | + */ | |
| 440 | + static String getText(String key, String a1, String a2) { | |
| 441 | + return getText(key, a1, a2, null); | |
| 442 | + } | |
| 443 | + | |
| 444 | + /** | |
| 445 | + * get and format message string from resource | |
| 446 | + * | |
| 447 | + * @param key selects message from resource | |
| 448 | + * @param a1 first argument | |
| 449 | + * @param a2 second argument | |
| 450 | + * @param a3 third argument | |
| 451 | + */ | |
| 452 | + static String getText(String key, String a1, String a2, String a3) { | |
| 453 | + if (messageRB == null) { | |
| 454 | + initResource(); | |
| 455 | + } | |
| 456 | + try { | |
| 457 | + String message = messageRB.getString(key); | |
| 458 | + String[] args = new String[3]; | |
| 459 | + args[0] = a1; | |
| 460 | + args[1] = a2; | |
| 461 | + args[2] = a3; | |
| 462 | + return MessageFormat.format(message, args); | |
| 463 | + } catch (MissingResourceException e) { | |
| 464 | + throw new Error("Fatal: Resource for serialver is broken. There is no " + key + " key in resource."); | |
| 465 | + } | |
| 466 | + } | |
| 467 | +} | |