J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1996-2005 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 | } |