J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2002-2007 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 javax.management; |
| 27 | |
| 28 | import java.io.IOException; |
| 29 | import java.io.ObjectInputStream; |
| 30 | import java.security.Permission; |
| 31 | |
| 32 | /** |
| 33 | * <p>Permission controlling access to MBeanServer operations. If a |
| 34 | * security manager has been set using {@link |
| 35 | * System#setSecurityManager}, most operations on the MBean Server |
| 36 | * require that the caller's permissions imply an MBeanPermission |
| 37 | * appropriate for the operation. This is described in detail in the |
| 38 | * documentation for the {@link MBeanServer} interface.</p> |
| 39 | * |
| 40 | * <p>As with other {@link Permission} objects, an MBeanPermission can |
| 41 | * represent either a permission that you <em>have</em> or a |
| 42 | * permission that you <em>need</em>. When a sensitive operation is |
| 43 | * being checked for permission, an MBeanPermission is constructed |
| 44 | * representing the permission you need. The operation is only |
| 45 | * allowed if the permissions you have {@link #implies imply} the |
| 46 | * permission you need.</p> |
| 47 | * |
| 48 | * <p>An MBeanPermission contains four items of information:</p> |
| 49 | * |
| 50 | * <ul> |
| 51 | * |
| 52 | * <li><p>The <em>action</em>. For a permission you need, |
| 53 | * this is one of the actions in the list <a |
| 54 | * href="#action-list">below</a>. For a permission you have, this is |
| 55 | * a comma-separated list of those actions, or <code>*</code>, |
| 56 | * representing all actions.</p> |
| 57 | * |
| 58 | * <p>The action is returned by {@link #getActions()}.</p> |
| 59 | * |
| 60 | * <li><p>The <em>class name</em>.</p> |
| 61 | * |
| 62 | * <p>For a permission you need, this is the class name of an MBean |
| 63 | * you are accessing, as returned by {@link |
| 64 | * MBeanServer#getMBeanInfo(ObjectName) |
| 65 | * MBeanServer.getMBeanInfo(name)}.{@link MBeanInfo#getClassName() |
| 66 | * getClassName()}. Certain operations do not reference a class name, |
| 67 | * in which case the class name is null.</p> |
| 68 | * |
| 69 | * <p>For a permission you have, this is either empty or a <em>class |
| 70 | * name pattern</em>. A class name pattern is a string following the |
| 71 | * Java conventions for dot-separated class names. It may end with |
| 72 | * "<code>.*</code>" meaning that the permission grants access to any |
| 73 | * class that begins with the string preceding "<code>.*</code>". For |
| 74 | * instance, "<code>javax.management.*</code>" grants access to |
| 75 | * <code>javax.management.MBeanServerDelegate</code> and |
| 76 | * <code>javax.management.timer.Timer</code>, among other classes.</p> |
| 77 | * |
| 78 | * <p>A class name pattern can also be empty or the single character |
| 79 | * "<code>*</code>", both of which grant access to any class.</p> |
| 80 | * |
| 81 | * <li><p>The <em>member</em>.</p> |
| 82 | * |
| 83 | * <p>For a permission you need, this is the name of the attribute or |
| 84 | * operation you are accessing. For operations that do not reference |
| 85 | * an attribute or operation, the member is null.</p> |
| 86 | * |
| 87 | * <p>For a permission you have, this is either the name of an attribute |
| 88 | * or operation you can access, or it is empty or the single character |
| 89 | * "<code>*</code>", both of which grant access to any member.</p> |
| 90 | * |
| 91 | * <li><p>The <em>object name</em>.</p> |
| 92 | * |
| 93 | * <p>For a permission you need, this is the {@link ObjectName} of the |
| 94 | * MBean you are accessing. For operations that do not reference a |
| 95 | * single MBean, it is null. It is never an object name pattern.</p> |
| 96 | * |
| 97 | * <p>For a permission you have, this is the {@link ObjectName} of the |
| 98 | * MBean or MBeans you can access. It may be an object name pattern |
| 99 | * to grant access to all MBeans whose names match the pattern. It |
| 100 | * may also be empty, which grants access to all MBeans whatever their |
| 101 | * name.</p> |
| 102 | * |
| 103 | * </ul> |
| 104 | * |
| 105 | * <p>If you have an MBeanPermission, it allows operations only if all |
| 106 | * four of the items match.</p> |
| 107 | * |
| 108 | * <p>The class name, member, and object name can be written together |
| 109 | * as a single string, which is the <em>name</em> of this permission. |
| 110 | * The name of the permission is the string returned by {@link |
| 111 | * Permission#getName() getName()}. The format of the string is:</p> |
| 112 | * |
| 113 | * <blockquote> |
| 114 | * <code>className#member[objectName]</code> |
| 115 | * </blockquote> |
| 116 | * |
| 117 | * <p>The object name is written using the usual syntax for {@link |
| 118 | * ObjectName}. It may contain any legal characters, including |
| 119 | * <code>]</code>. It is terminated by a <code>]</code> character |
| 120 | * that is the last character in the string.</p> |
| 121 | * |
| 122 | * <p>One or more of the <code>className</code>, <code>member</code>, |
| 123 | * or <code>objectName</code> may be omitted. If the |
| 124 | * <code>member</code> is omitted, the <code>#</code> may be too (but |
| 125 | * does not have to be). If the <code>objectName</code> is omitted, |
| 126 | * the <code>[]</code> may be too (but does not have to be). It is |
| 127 | * not legal to omit all three items, that is to have a <em>name</em> |
| 128 | * that is the empty string.</p> |
| 129 | * |
| 130 | * <p>One or more of the <code>className</code>, <code>member</code>, |
| 131 | * or <code>objectName</code> may be the character "<code>-</code>", |
| 132 | * which is equivalent to a null value. A null value is implied by |
| 133 | * any value (including another null value) but does not imply any |
| 134 | * other value.</p> |
| 135 | * |
| 136 | * <p><a name="action-list">The possible actions are these:</a></p> |
| 137 | * |
| 138 | * <ul> |
| 139 | * <li>addNotificationListener</li> |
| 140 | * <li>getAttribute</li> |
| 141 | * <li>getClassLoader</li> |
| 142 | * <li>getClassLoaderFor</li> |
| 143 | * <li>getClassLoaderRepository</li> |
| 144 | * <li>getDomains</li> |
| 145 | * <li>getMBeanInfo</li> |
| 146 | * <li>getObjectInstance</li> |
| 147 | * <li>instantiate</li> |
| 148 | * <li>invoke</li> |
| 149 | * <li>isInstanceOf</li> |
| 150 | * <li>queryMBeans</li> |
| 151 | * <li>queryNames</li> |
| 152 | * <li>registerMBean</li> |
| 153 | * <li>removeNotificationListener</li> |
| 154 | * <li>setAttribute</li> |
| 155 | * <li>unregisterMBean</li> |
| 156 | * </ul> |
| 157 | * |
| 158 | * <p>In a comma-separated list of actions, spaces are allowed before |
| 159 | * and after each action.</p> |
| 160 | * |
| 161 | * @since 1.5 |
| 162 | */ |
| 163 | public class MBeanPermission extends Permission { |
| 164 | |
| 165 | private static final long serialVersionUID = -2416928705275160661L; |
| 166 | |
| 167 | /** |
| 168 | * Actions list. |
| 169 | */ |
| 170 | private static final int AddNotificationListener = 0x00001; |
| 171 | private static final int GetAttribute = 0x00002; |
| 172 | private static final int GetClassLoader = 0x00004; |
| 173 | private static final int GetClassLoaderFor = 0x00008; |
| 174 | private static final int GetClassLoaderRepository = 0x00010; |
| 175 | private static final int GetDomains = 0x00020; |
| 176 | private static final int GetMBeanInfo = 0x00040; |
| 177 | private static final int GetObjectInstance = 0x00080; |
| 178 | private static final int Instantiate = 0x00100; |
| 179 | private static final int Invoke = 0x00200; |
| 180 | private static final int IsInstanceOf = 0x00400; |
| 181 | private static final int QueryMBeans = 0x00800; |
| 182 | private static final int QueryNames = 0x01000; |
| 183 | private static final int RegisterMBean = 0x02000; |
| 184 | private static final int RemoveNotificationListener = 0x04000; |
| 185 | private static final int SetAttribute = 0x08000; |
| 186 | private static final int UnregisterMBean = 0x10000; |
| 187 | |
| 188 | /** |
| 189 | * No actions. |
| 190 | */ |
| 191 | private static final int NONE = 0x00000; |
| 192 | |
| 193 | /** |
| 194 | * All actions. |
| 195 | */ |
| 196 | private static final int ALL = |
| 197 | AddNotificationListener | |
| 198 | GetAttribute | |
| 199 | GetClassLoader | |
| 200 | GetClassLoaderFor | |
| 201 | GetClassLoaderRepository | |
| 202 | GetDomains | |
| 203 | GetMBeanInfo | |
| 204 | GetObjectInstance | |
| 205 | Instantiate | |
| 206 | Invoke | |
| 207 | IsInstanceOf | |
| 208 | QueryMBeans | |
| 209 | QueryNames | |
| 210 | RegisterMBean | |
| 211 | RemoveNotificationListener | |
| 212 | SetAttribute | |
| 213 | UnregisterMBean; |
| 214 | |
| 215 | /** |
| 216 | * The actions string. |
| 217 | */ |
| 218 | private String actions; |
| 219 | |
| 220 | /** |
| 221 | * The actions mask. |
| 222 | */ |
| 223 | private transient int mask; |
| 224 | |
| 225 | /** |
| 226 | * The classname prefix that must match. If null, is implied by any |
| 227 | * classNamePrefix but does not imply any non-null classNamePrefix. |
| 228 | */ |
| 229 | private transient String classNamePrefix; |
| 230 | |
| 231 | /** |
| 232 | * True if classNamePrefix must match exactly. Otherwise, the |
| 233 | * className being matched must start with classNamePrefix. |
| 234 | */ |
| 235 | private transient boolean classNameExactMatch; |
| 236 | |
| 237 | /** |
| 238 | * The member that must match. If null, is implied by any member |
| 239 | * but does not imply any non-null member. |
| 240 | */ |
| 241 | private transient String member; |
| 242 | |
| 243 | /** |
| 244 | * The objectName that must match. If null, is implied by any |
| 245 | * objectName but does not imply any non-null objectName. |
| 246 | */ |
| 247 | private transient ObjectName objectName; |
| 248 | |
| 249 | /** |
| 250 | * Parse <code>actions</code> parameter. |
| 251 | */ |
| 252 | private void parseActions() { |
| 253 | |
| 254 | int mask; |
| 255 | |
| 256 | if (actions == null) |
| 257 | throw new IllegalArgumentException("MBeanPermission: " + |
| 258 | "actions can't be null"); |
| 259 | if (actions.equals("")) |
| 260 | throw new IllegalArgumentException("MBeanPermission: " + |
| 261 | "actions can't be empty"); |
| 262 | |
| 263 | mask = getMask(actions); |
| 264 | |
| 265 | if ((mask & ALL) != mask) |
| 266 | throw new IllegalArgumentException("Invalid actions mask"); |
| 267 | if (mask == NONE) |
| 268 | throw new IllegalArgumentException("Invalid actions mask"); |
| 269 | this.mask = mask; |
| 270 | } |
| 271 | |
| 272 | /** |
| 273 | * Parse <code>name</code> parameter. |
| 274 | */ |
| 275 | private void parseName() { |
| 276 | String name = getName(); |
| 277 | |
| 278 | if (name == null) |
| 279 | throw new IllegalArgumentException("MBeanPermission name " + |
| 280 | "cannot be null"); |
| 281 | |
| 282 | if (name.equals("")) |
| 283 | throw new IllegalArgumentException("MBeanPermission name " + |
| 284 | "cannot be empty"); |
| 285 | |
| 286 | /* The name looks like "class#member[objectname]". We subtract |
| 287 | elements from the right as we parse, so after parsing the |
| 288 | objectname we have "class#member" and after parsing the |
| 289 | member we have "class". Each element is optional. */ |
| 290 | |
| 291 | // Parse ObjectName |
| 292 | |
| 293 | int openingBracket = name.indexOf("["); |
| 294 | if (openingBracket == -1) { |
| 295 | // If "[on]" missing then ObjectName("*:*") |
| 296 | // |
| 297 | objectName = ObjectName.WILDCARD; |
| 298 | } else { |
| 299 | if (!name.endsWith("]")) { |
| 300 | throw new IllegalArgumentException("MBeanPermission: " + |
| 301 | "The ObjectName in the " + |
| 302 | "target name must be " + |
| 303 | "included in square " + |
| 304 | "brackets"); |
| 305 | } else { |
| 306 | // Create ObjectName |
| 307 | // |
| 308 | try { |
| 309 | // If "[]" then ObjectName("*:*") |
| 310 | // |
| 311 | String on = name.substring(openingBracket + 1, |
| 312 | name.length() - 1); |
| 313 | if (on.equals("")) |
| 314 | objectName = ObjectName.WILDCARD; |
| 315 | else if (on.equals("-")) |
| 316 | objectName = null; |
| 317 | else |
| 318 | objectName = new ObjectName(on); |
| 319 | } catch (MalformedObjectNameException e) { |
| 320 | throw new IllegalArgumentException("MBeanPermission: " + |
| 321 | "The target name does " + |
| 322 | "not specify a valid " + |
| 323 | "ObjectName"); |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | name = name.substring(0, openingBracket); |
| 328 | } |
| 329 | |
| 330 | // Parse member |
| 331 | |
| 332 | int poundSign = name.indexOf("#"); |
| 333 | |
| 334 | if (poundSign == -1) |
| 335 | setMember("*"); |
| 336 | else { |
| 337 | String memberName = name.substring(poundSign + 1); |
| 338 | setMember(memberName); |
| 339 | name = name.substring(0, poundSign); |
| 340 | } |
| 341 | |
| 342 | // Parse className |
| 343 | |
| 344 | setClassName(name); |
| 345 | } |
| 346 | |
| 347 | /** |
| 348 | * Assign fields based on className, member, and objectName |
| 349 | * parameters. |
| 350 | */ |
| 351 | private void initName(String className, String member, |
| 352 | ObjectName objectName) { |
| 353 | setClassName(className); |
| 354 | setMember(member); |
| 355 | this.objectName = objectName; |
| 356 | } |
| 357 | |
| 358 | private void setClassName(String className) { |
| 359 | if (className == null || className.equals("-")) { |
| 360 | classNamePrefix = null; |
| 361 | classNameExactMatch = false; |
| 362 | } else if (className.equals("") || className.equals("*")) { |
| 363 | classNamePrefix = ""; |
| 364 | classNameExactMatch = false; |
| 365 | } else if (className.endsWith(".*")) { |
| 366 | // Note that we include the "." in the required prefix |
| 367 | classNamePrefix = className.substring(0, className.length() - 1); |
| 368 | classNameExactMatch = false; |
| 369 | } else { |
| 370 | classNamePrefix = className; |
| 371 | classNameExactMatch = true; |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | private void setMember(String member) { |
| 376 | if (member == null || member.equals("-")) |
| 377 | this.member = null; |
| 378 | else if (member.equals("")) |
| 379 | this.member = "*"; |
| 380 | else |
| 381 | this.member = member; |
| 382 | } |
| 383 | |
| 384 | /** |
| 385 | * <p>Create a new MBeanPermission object with the specified target name |
| 386 | * and actions.</p> |
| 387 | * |
| 388 | * <p>The target name is of the form |
| 389 | * "<code>className#member[objectName]</code>" where each part is |
| 390 | * optional. It must not be empty or null.</p> |
| 391 | * |
| 392 | * <p>The actions parameter contains a comma-separated list of the |
| 393 | * desired actions granted on the target name. It must not be |
| 394 | * empty or null.</p> |
| 395 | * |
| 396 | * @param name the triplet "className#member[objectName]". |
| 397 | * @param actions the action string. |
| 398 | * |
| 399 | * @exception IllegalArgumentException if the <code>name</code> or |
| 400 | * <code>actions</code> is invalid. |
| 401 | */ |
| 402 | public MBeanPermission(String name, String actions) { |
| 403 | super(name); |
| 404 | |
| 405 | parseName(); |
| 406 | |
| 407 | this.actions = actions; |
| 408 | parseActions(); |
| 409 | } |
| 410 | |
| 411 | /** |
| 412 | * <p>Create a new MBeanPermission object with the specified target name |
| 413 | * (class name, member, object name) and actions.</p> |
| 414 | * |
| 415 | * <p>The class name, member and object name parameters define a |
| 416 | * target name of the form |
| 417 | * "<code>className#member[objectName]</code>" where each part is |
| 418 | * optional. This will be the result of {@link #getName()} on the |
| 419 | * resultant MBeanPermission.</p> |
| 420 | * |
| 421 | * <p>The actions parameter contains a comma-separated list of the |
| 422 | * desired actions granted on the target name. It must not be |
| 423 | * empty or null.</p> |
| 424 | * |
| 425 | * @param className the class name to which this permission applies. |
| 426 | * May be null or <code>"-"</code>, which represents a class name |
| 427 | * that is implied by any class name but does not imply any other |
| 428 | * class name. |
| 429 | * @param member the member to which this permission applies. May |
| 430 | * be null or <code>"-"</code>, which represents a member that is |
| 431 | * implied by any member but does not imply any other member. |
| 432 | * @param objectName the object name to which this permission |
| 433 | * applies. May be null, which represents an object name that is |
| 434 | * implied by any object name but does not imply any other object |
| 435 | * name. |
| 436 | * @param actions the action string. |
| 437 | */ |
| 438 | public MBeanPermission(String className, |
| 439 | String member, |
| 440 | ObjectName objectName, |
| 441 | String actions) { |
| 442 | |
| 443 | super(makeName(className, member, objectName)); |
| 444 | initName(className, member, objectName); |
| 445 | |
| 446 | this.actions = actions; |
| 447 | parseActions(); |
| 448 | } |
| 449 | |
| 450 | private static String makeName(String className, String member, |
| 451 | ObjectName objectName) { |
| 452 | final StringBuilder name = new StringBuilder(); |
| 453 | if (className == null) |
| 454 | className = "-"; |
| 455 | name.append(className); |
| 456 | if (member == null) |
| 457 | member = "-"; |
| 458 | name.append("#" + member); |
| 459 | if (objectName == null) |
| 460 | name.append("[-]"); |
| 461 | else |
| 462 | name.append("[").append(objectName.getCanonicalName()).append("]"); |
| 463 | |
| 464 | /* In the interests of legibility for Permission.toString(), we |
| 465 | transform the empty string into "*". */ |
| 466 | if (name.length() == 0) |
| 467 | return "*"; |
| 468 | else |
| 469 | return name.toString(); |
| 470 | } |
| 471 | |
| 472 | /** |
| 473 | * Returns the "canonical string representation" of the actions. That is, |
| 474 | * this method always returns present actions in alphabetical order. |
| 475 | * |
| 476 | * @return the canonical string representation of the actions. |
| 477 | */ |
| 478 | public String getActions() { |
| 479 | |
| 480 | if (actions == null) |
| 481 | actions = getActions(this.mask); |
| 482 | |
| 483 | return actions; |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * Returns the "canonical string representation" |
| 488 | * of the actions from the mask. |
| 489 | */ |
| 490 | private static String getActions(int mask) { |
| 491 | final StringBuilder sb = new StringBuilder(); |
| 492 | boolean comma = false; |
| 493 | |
| 494 | if ((mask & AddNotificationListener) == AddNotificationListener) { |
| 495 | comma = true; |
| 496 | sb.append("addNotificationListener"); |
| 497 | } |
| 498 | |
| 499 | if ((mask & GetAttribute) == GetAttribute) { |
| 500 | if (comma) sb.append(','); |
| 501 | else comma = true; |
| 502 | sb.append("getAttribute"); |
| 503 | } |
| 504 | |
| 505 | if ((mask & GetClassLoader) == GetClassLoader) { |
| 506 | if (comma) sb.append(','); |
| 507 | else comma = true; |
| 508 | sb.append("getClassLoader"); |
| 509 | } |
| 510 | |
| 511 | if ((mask & GetClassLoaderFor) == GetClassLoaderFor) { |
| 512 | if (comma) sb.append(','); |
| 513 | else comma = true; |
| 514 | sb.append("getClassLoaderFor"); |
| 515 | } |
| 516 | |
| 517 | if ((mask & GetClassLoaderRepository) == GetClassLoaderRepository) { |
| 518 | if (comma) sb.append(','); |
| 519 | else comma = true; |
| 520 | sb.append("getClassLoaderRepository"); |
| 521 | } |
| 522 | |
| 523 | if ((mask & GetDomains) == GetDomains) { |
| 524 | if (comma) sb.append(','); |
| 525 | else comma = true; |
| 526 | sb.append("getDomains"); |
| 527 | } |
| 528 | |
| 529 | if ((mask & GetMBeanInfo) == GetMBeanInfo) { |
| 530 | if (comma) sb.append(','); |
| 531 | else comma = true; |
| 532 | sb.append("getMBeanInfo"); |
| 533 | } |
| 534 | |
| 535 | if ((mask & GetObjectInstance) == GetObjectInstance) { |
| 536 | if (comma) sb.append(','); |
| 537 | else comma = true; |
| 538 | sb.append("getObjectInstance"); |
| 539 | } |
| 540 | |
| 541 | if ((mask & Instantiate) == Instantiate) { |
| 542 | if (comma) sb.append(','); |
| 543 | else comma = true; |
| 544 | sb.append("instantiate"); |
| 545 | } |
| 546 | |
| 547 | if ((mask & Invoke) == Invoke) { |
| 548 | if (comma) sb.append(','); |
| 549 | else comma = true; |
| 550 | sb.append("invoke"); |
| 551 | } |
| 552 | |
| 553 | if ((mask & IsInstanceOf) == IsInstanceOf) { |
| 554 | if (comma) sb.append(','); |
| 555 | else comma = true; |
| 556 | sb.append("isInstanceOf"); |
| 557 | } |
| 558 | |
| 559 | if ((mask & QueryMBeans) == QueryMBeans) { |
| 560 | if (comma) sb.append(','); |
| 561 | else comma = true; |
| 562 | sb.append("queryMBeans"); |
| 563 | } |
| 564 | |
| 565 | if ((mask & QueryNames) == QueryNames) { |
| 566 | if (comma) sb.append(','); |
| 567 | else comma = true; |
| 568 | sb.append("queryNames"); |
| 569 | } |
| 570 | |
| 571 | if ((mask & RegisterMBean) == RegisterMBean) { |
| 572 | if (comma) sb.append(','); |
| 573 | else comma = true; |
| 574 | sb.append("registerMBean"); |
| 575 | } |
| 576 | |
| 577 | if ((mask & RemoveNotificationListener) == RemoveNotificationListener) { |
| 578 | if (comma) sb.append(','); |
| 579 | else comma = true; |
| 580 | sb.append("removeNotificationListener"); |
| 581 | } |
| 582 | |
| 583 | if ((mask & SetAttribute) == SetAttribute) { |
| 584 | if (comma) sb.append(','); |
| 585 | else comma = true; |
| 586 | sb.append("setAttribute"); |
| 587 | } |
| 588 | |
| 589 | if ((mask & UnregisterMBean) == UnregisterMBean) { |
| 590 | if (comma) sb.append(','); |
| 591 | else comma = true; |
| 592 | sb.append("unregisterMBean"); |
| 593 | } |
| 594 | |
| 595 | return sb.toString(); |
| 596 | } |
| 597 | |
| 598 | /** |
| 599 | * Returns the hash code value for this object. |
| 600 | * |
| 601 | * @return a hash code value for this object. |
| 602 | */ |
| 603 | public int hashCode() { |
| 604 | return this.getName().hashCode() + this.getActions().hashCode(); |
| 605 | } |
| 606 | |
| 607 | /** |
| 608 | * Converts an action String to an integer action mask. |
| 609 | * |
| 610 | * @param action the action string. |
| 611 | * @return the action mask. |
| 612 | */ |
| 613 | private static int getMask(String action) { |
| 614 | |
| 615 | /* |
| 616 | * BE CAREFUL HERE! PARSING ORDER IS IMPORTANT IN THIS ALGORITHM. |
| 617 | * |
| 618 | * The 'string length' test must be performed for the lengthiest |
| 619 | * strings first. |
| 620 | * |
| 621 | * In this permission if the "unregisterMBean" string length test is |
| 622 | * performed after the "registerMBean" string length test the algorithm |
| 623 | * considers the 'unregisterMBean' action as being the 'registerMBean' |
| 624 | * action and a parsing error is returned. |
| 625 | */ |
| 626 | |
| 627 | int mask = NONE; |
| 628 | |
| 629 | if (action == null) { |
| 630 | return mask; |
| 631 | } |
| 632 | |
| 633 | if (action.equals("*")) { |
| 634 | return ALL; |
| 635 | } |
| 636 | |
| 637 | char[] a = action.toCharArray(); |
| 638 | |
| 639 | int i = a.length - 1; |
| 640 | if (i < 0) |
| 641 | return mask; |
| 642 | |
| 643 | while (i != -1) { |
| 644 | char c; |
| 645 | |
| 646 | // skip whitespace |
| 647 | while ((i!=-1) && ((c = a[i]) == ' ' || |
| 648 | c == '\r' || |
| 649 | c == '\n' || |
| 650 | c == '\f' || |
| 651 | c == '\t')) |
| 652 | i--; |
| 653 | |
| 654 | // check for the known strings |
| 655 | int matchlen; |
| 656 | |
| 657 | if (i >= 25 && /* removeNotificationListener */ |
| 658 | (a[i-25] == 'r') && |
| 659 | (a[i-24] == 'e') && |
| 660 | (a[i-23] == 'm') && |
| 661 | (a[i-22] == 'o') && |
| 662 | (a[i-21] == 'v') && |
| 663 | (a[i-20] == 'e') && |
| 664 | (a[i-19] == 'N') && |
| 665 | (a[i-18] == 'o') && |
| 666 | (a[i-17] == 't') && |
| 667 | (a[i-16] == 'i') && |
| 668 | (a[i-15] == 'f') && |
| 669 | (a[i-14] == 'i') && |
| 670 | (a[i-13] == 'c') && |
| 671 | (a[i-12] == 'a') && |
| 672 | (a[i-11] == 't') && |
| 673 | (a[i-10] == 'i') && |
| 674 | (a[i-9] == 'o') && |
| 675 | (a[i-8] == 'n') && |
| 676 | (a[i-7] == 'L') && |
| 677 | (a[i-6] == 'i') && |
| 678 | (a[i-5] == 's') && |
| 679 | (a[i-4] == 't') && |
| 680 | (a[i-3] == 'e') && |
| 681 | (a[i-2] == 'n') && |
| 682 | (a[i-1] == 'e') && |
| 683 | (a[i] == 'r')) { |
| 684 | matchlen = 26; |
| 685 | mask |= RemoveNotificationListener; |
| 686 | } else if (i >= 23 && /* getClassLoaderRepository */ |
| 687 | (a[i-23] == 'g') && |
| 688 | (a[i-22] == 'e') && |
| 689 | (a[i-21] == 't') && |
| 690 | (a[i-20] == 'C') && |
| 691 | (a[i-19] == 'l') && |
| 692 | (a[i-18] == 'a') && |
| 693 | (a[i-17] == 's') && |
| 694 | (a[i-16] == 's') && |
| 695 | (a[i-15] == 'L') && |
| 696 | (a[i-14] == 'o') && |
| 697 | (a[i-13] == 'a') && |
| 698 | (a[i-12] == 'd') && |
| 699 | (a[i-11] == 'e') && |
| 700 | (a[i-10] == 'r') && |
| 701 | (a[i-9] == 'R') && |
| 702 | (a[i-8] == 'e') && |
| 703 | (a[i-7] == 'p') && |
| 704 | (a[i-6] == 'o') && |
| 705 | (a[i-5] == 's') && |
| 706 | (a[i-4] == 'i') && |
| 707 | (a[i-3] == 't') && |
| 708 | (a[i-2] == 'o') && |
| 709 | (a[i-1] == 'r') && |
| 710 | (a[i] == 'y')) { |
| 711 | matchlen = 24; |
| 712 | mask |= GetClassLoaderRepository; |
| 713 | } else if (i >= 22 && /* addNotificationListener */ |
| 714 | (a[i-22] == 'a') && |
| 715 | (a[i-21] == 'd') && |
| 716 | (a[i-20] == 'd') && |
| 717 | (a[i-19] == 'N') && |
| 718 | (a[i-18] == 'o') && |
| 719 | (a[i-17] == 't') && |
| 720 | (a[i-16] == 'i') && |
| 721 | (a[i-15] == 'f') && |
| 722 | (a[i-14] == 'i') && |
| 723 | (a[i-13] == 'c') && |
| 724 | (a[i-12] == 'a') && |
| 725 | (a[i-11] == 't') && |
| 726 | (a[i-10] == 'i') && |
| 727 | (a[i-9] == 'o') && |
| 728 | (a[i-8] == 'n') && |
| 729 | (a[i-7] == 'L') && |
| 730 | (a[i-6] == 'i') && |
| 731 | (a[i-5] == 's') && |
| 732 | (a[i-4] == 't') && |
| 733 | (a[i-3] == 'e') && |
| 734 | (a[i-2] == 'n') && |
| 735 | (a[i-1] == 'e') && |
| 736 | (a[i] == 'r')) { |
| 737 | matchlen = 23; |
| 738 | mask |= AddNotificationListener; |
| 739 | } else if (i >= 16 && /* getClassLoaderFor */ |
| 740 | (a[i-16] == 'g') && |
| 741 | (a[i-15] == 'e') && |
| 742 | (a[i-14] == 't') && |
| 743 | (a[i-13] == 'C') && |
| 744 | (a[i-12] == 'l') && |
| 745 | (a[i-11] == 'a') && |
| 746 | (a[i-10] == 's') && |
| 747 | (a[i-9] == 's') && |
| 748 | (a[i-8] == 'L') && |
| 749 | (a[i-7] == 'o') && |
| 750 | (a[i-6] == 'a') && |
| 751 | (a[i-5] == 'd') && |
| 752 | (a[i-4] == 'e') && |
| 753 | (a[i-3] == 'r') && |
| 754 | (a[i-2] == 'F') && |
| 755 | (a[i-1] == 'o') && |
| 756 | (a[i] == 'r')) { |
| 757 | matchlen = 17; |
| 758 | mask |= GetClassLoaderFor; |
| 759 | } else if (i >= 16 && /* getObjectInstance */ |
| 760 | (a[i-16] == 'g') && |
| 761 | (a[i-15] == 'e') && |
| 762 | (a[i-14] == 't') && |
| 763 | (a[i-13] == 'O') && |
| 764 | (a[i-12] == 'b') && |
| 765 | (a[i-11] == 'j') && |
| 766 | (a[i-10] == 'e') && |
| 767 | (a[i-9] == 'c') && |
| 768 | (a[i-8] == 't') && |
| 769 | (a[i-7] == 'I') && |
| 770 | (a[i-6] == 'n') && |
| 771 | (a[i-5] == 's') && |
| 772 | (a[i-4] == 't') && |
| 773 | (a[i-3] == 'a') && |
| 774 | (a[i-2] == 'n') && |
| 775 | (a[i-1] == 'c') && |
| 776 | (a[i] == 'e')) { |
| 777 | matchlen = 17; |
| 778 | mask |= GetObjectInstance; |
| 779 | } else if (i >= 14 && /* unregisterMBean */ |
| 780 | (a[i-14] == 'u') && |
| 781 | (a[i-13] == 'n') && |
| 782 | (a[i-12] == 'r') && |
| 783 | (a[i-11] == 'e') && |
| 784 | (a[i-10] == 'g') && |
| 785 | (a[i-9] == 'i') && |
| 786 | (a[i-8] == 's') && |
| 787 | (a[i-7] == 't') && |
| 788 | (a[i-6] == 'e') && |
| 789 | (a[i-5] == 'r') && |
| 790 | (a[i-4] == 'M') && |
| 791 | (a[i-3] == 'B') && |
| 792 | (a[i-2] == 'e') && |
| 793 | (a[i-1] == 'a') && |
| 794 | (a[i] == 'n')) { |
| 795 | matchlen = 15; |
| 796 | mask |= UnregisterMBean; |
| 797 | } else if (i >= 13 && /* getClassLoader */ |
| 798 | (a[i-13] == 'g') && |
| 799 | (a[i-12] == 'e') && |
| 800 | (a[i-11] == 't') && |
| 801 | (a[i-10] == 'C') && |
| 802 | (a[i-9] == 'l') && |
| 803 | (a[i-8] == 'a') && |
| 804 | (a[i-7] == 's') && |
| 805 | (a[i-6] == 's') && |
| 806 | (a[i-5] == 'L') && |
| 807 | (a[i-4] == 'o') && |
| 808 | (a[i-3] == 'a') && |
| 809 | (a[i-2] == 'd') && |
| 810 | (a[i-1] == 'e') && |
| 811 | (a[i] == 'r')) { |
| 812 | matchlen = 14; |
| 813 | mask |= GetClassLoader; |
| 814 | } else if (i >= 12 && /* registerMBean */ |
| 815 | (a[i-12] == 'r') && |
| 816 | (a[i-11] == 'e') && |
| 817 | (a[i-10] == 'g') && |
| 818 | (a[i-9] == 'i') && |
| 819 | (a[i-8] == 's') && |
| 820 | (a[i-7] == 't') && |
| 821 | (a[i-6] == 'e') && |
| 822 | (a[i-5] == 'r') && |
| 823 | (a[i-4] == 'M') && |
| 824 | (a[i-3] == 'B') && |
| 825 | (a[i-2] == 'e') && |
| 826 | (a[i-1] == 'a') && |
| 827 | (a[i] == 'n')) { |
| 828 | matchlen = 13; |
| 829 | mask |= RegisterMBean; |
| 830 | } else if (i >= 11 && /* getAttribute */ |
| 831 | (a[i-11] == 'g') && |
| 832 | (a[i-10] == 'e') && |
| 833 | (a[i-9] == 't') && |
| 834 | (a[i-8] == 'A') && |
| 835 | (a[i-7] == 't') && |
| 836 | (a[i-6] == 't') && |
| 837 | (a[i-5] == 'r') && |
| 838 | (a[i-4] == 'i') && |
| 839 | (a[i-3] == 'b') && |
| 840 | (a[i-2] == 'u') && |
| 841 | (a[i-1] == 't') && |
| 842 | (a[i] == 'e')) { |
| 843 | matchlen = 12; |
| 844 | mask |= GetAttribute; |
| 845 | } else if (i >= 11 && /* getMBeanInfo */ |
| 846 | (a[i-11] == 'g') && |
| 847 | (a[i-10] == 'e') && |
| 848 | (a[i-9] == 't') && |
| 849 | (a[i-8] == 'M') && |
| 850 | (a[i-7] == 'B') && |
| 851 | (a[i-6] == 'e') && |
| 852 | (a[i-5] == 'a') && |
| 853 | (a[i-4] == 'n') && |
| 854 | (a[i-3] == 'I') && |
| 855 | (a[i-2] == 'n') && |
| 856 | (a[i-1] == 'f') && |
| 857 | (a[i] == 'o')) { |
| 858 | matchlen = 12; |
| 859 | mask |= GetMBeanInfo; |
| 860 | } else if (i >= 11 && /* isInstanceOf */ |
| 861 | (a[i-11] == 'i') && |
| 862 | (a[i-10] == 's') && |
| 863 | (a[i-9] == 'I') && |
| 864 | (a[i-8] == 'n') && |
| 865 | (a[i-7] == 's') && |
| 866 | (a[i-6] == 't') && |
| 867 | (a[i-5] == 'a') && |
| 868 | (a[i-4] == 'n') && |
| 869 | (a[i-3] == 'c') && |
| 870 | (a[i-2] == 'e') && |
| 871 | (a[i-1] == 'O') && |
| 872 | (a[i] == 'f')) { |
| 873 | matchlen = 12; |
| 874 | mask |= IsInstanceOf; |
| 875 | } else if (i >= 11 && /* setAttribute */ |
| 876 | (a[i-11] == 's') && |
| 877 | (a[i-10] == 'e') && |
| 878 | (a[i-9] == 't') && |
| 879 | (a[i-8] == 'A') && |
| 880 | (a[i-7] == 't') && |
| 881 | (a[i-6] == 't') && |
| 882 | (a[i-5] == 'r') && |
| 883 | (a[i-4] == 'i') && |
| 884 | (a[i-3] == 'b') && |
| 885 | (a[i-2] == 'u') && |
| 886 | (a[i-1] == 't') && |
| 887 | (a[i] == 'e')) { |
| 888 | matchlen = 12; |
| 889 | mask |= SetAttribute; |
| 890 | } else if (i >= 10 && /* instantiate */ |
| 891 | (a[i-10] == 'i') && |
| 892 | (a[i-9] == 'n') && |
| 893 | (a[i-8] == 's') && |
| 894 | (a[i-7] == 't') && |
| 895 | (a[i-6] == 'a') && |
| 896 | (a[i-5] == 'n') && |
| 897 | (a[i-4] == 't') && |
| 898 | (a[i-3] == 'i') && |
| 899 | (a[i-2] == 'a') && |
| 900 | (a[i-1] == 't') && |
| 901 | (a[i] == 'e')) { |
| 902 | matchlen = 11; |
| 903 | mask |= Instantiate; |
| 904 | } else if (i >= 10 && /* queryMBeans */ |
| 905 | (a[i-10] == 'q') && |
| 906 | (a[i-9] == 'u') && |
| 907 | (a[i-8] == 'e') && |
| 908 | (a[i-7] == 'r') && |
| 909 | (a[i-6] == 'y') && |
| 910 | (a[i-5] == 'M') && |
| 911 | (a[i-4] == 'B') && |
| 912 | (a[i-3] == 'e') && |
| 913 | (a[i-2] == 'a') && |
| 914 | (a[i-1] == 'n') && |
| 915 | (a[i] == 's')) { |
| 916 | matchlen = 11; |
| 917 | mask |= QueryMBeans; |
| 918 | } else if (i >= 9 && /* getDomains */ |
| 919 | (a[i-9] == 'g') && |
| 920 | (a[i-8] == 'e') && |
| 921 | (a[i-7] == 't') && |
| 922 | (a[i-6] == 'D') && |
| 923 | (a[i-5] == 'o') && |
| 924 | (a[i-4] == 'm') && |
| 925 | (a[i-3] == 'a') && |
| 926 | (a[i-2] == 'i') && |
| 927 | (a[i-1] == 'n') && |
| 928 | (a[i] == 's')) { |
| 929 | matchlen = 10; |
| 930 | mask |= GetDomains; |
| 931 | } else if (i >= 9 && /* queryNames */ |
| 932 | (a[i-9] == 'q') && |
| 933 | (a[i-8] == 'u') && |
| 934 | (a[i-7] == 'e') && |
| 935 | (a[i-6] == 'r') && |
| 936 | (a[i-5] == 'y') && |
| 937 | (a[i-4] == 'N') && |
| 938 | (a[i-3] == 'a') && |
| 939 | (a[i-2] == 'm') && |
| 940 | (a[i-1] == 'e') && |
| 941 | (a[i] == 's')) { |
| 942 | matchlen = 10; |
| 943 | mask |= QueryNames; |
| 944 | } else if (i >= 5 && /* invoke */ |
| 945 | (a[i-5] == 'i') && |
| 946 | (a[i-4] == 'n') && |
| 947 | (a[i-3] == 'v') && |
| 948 | (a[i-2] == 'o') && |
| 949 | (a[i-1] == 'k') && |
| 950 | (a[i] == 'e')) { |
| 951 | matchlen = 6; |
| 952 | mask |= Invoke; |
| 953 | } else { |
| 954 | // parse error |
| 955 | throw new IllegalArgumentException("Invalid permission: " + |
| 956 | action); |
| 957 | } |
| 958 | |
| 959 | // make sure we didn't just match the tail of a word |
| 960 | // like "ackbarfaccept". Also, skip to the comma. |
| 961 | boolean seencomma = false; |
| 962 | while (i >= matchlen && !seencomma) { |
| 963 | switch(a[i-matchlen]) { |
| 964 | case ',': |
| 965 | seencomma = true; |
| 966 | break; |
| 967 | case ' ': case '\r': case '\n': |
| 968 | case '\f': case '\t': |
| 969 | break; |
| 970 | default: |
| 971 | throw new IllegalArgumentException("Invalid permission: " + |
| 972 | action); |
| 973 | } |
| 974 | i--; |
| 975 | } |
| 976 | |
| 977 | // point i at the location of the comma minus one (or -1). |
| 978 | i -= matchlen; |
| 979 | } |
| 980 | |
| 981 | return mask; |
| 982 | } |
| 983 | |
| 984 | /** |
| 985 | * <p>Checks if this MBeanPermission object "implies" the |
| 986 | * specified permission.</p> |
| 987 | * |
| 988 | * <p>More specifically, this method returns true if:</p> |
| 989 | * |
| 990 | * <ul> |
| 991 | * |
| 992 | * <li> <i>p</i> is an instance of MBeanPermission; and</li> |
| 993 | * |
| 994 | * <li> <i>p</i> has a null className or <i>p</i>'s className |
| 995 | * matches this object's className; and</li> |
| 996 | * |
| 997 | * <li> <i>p</i> has a null member or <i>p</i>'s member matches this |
| 998 | * object's member; and</li> |
| 999 | * |
| 1000 | * <li> <i>p</i> has a null object name or <i>p</i>'s |
| 1001 | * object name matches this object's object name; and</li> |
| 1002 | * |
| 1003 | * <li> <i>p</i>'s actions are a subset of this object's actions</li> |
| 1004 | * |
| 1005 | * </ul> |
| 1006 | * |
| 1007 | * <p>If this object's className is "<code>*</code>", <i>p</i>'s |
| 1008 | * className always matches it. If it is "<code>a.*</code>", <i>p</i>'s |
| 1009 | * className matches it if it begins with "<code>a.</code>".</p> |
| 1010 | * |
| 1011 | * <p>If this object's member is "<code>*</code>", <i>p</i>'s |
| 1012 | * member always matches it.</p> |
| 1013 | * |
| 1014 | * <p>If this object's objectName <i>n1</i> is an object name pattern, |
| 1015 | * <i>p</i>'s objectName <i>n2</i> matches it if |
| 1016 | * {@link ObjectName#equals <i>n1</i>.equals(<i>n2</i>)} or if |
| 1017 | * {@link ObjectName#apply <i>n1</i>.apply(<i>n2</i>)}.</p> |
| 1018 | * |
| 1019 | * <p>A permission that includes the <code>queryMBeans</code> action |
| 1020 | * is considered to include <code>queryNames</code> as well.</p> |
| 1021 | * |
| 1022 | * @param p the permission to check against. |
| 1023 | * @return true if the specified permission is implied by this object, |
| 1024 | * false if not. |
| 1025 | */ |
| 1026 | public boolean implies(Permission p) { |
| 1027 | if (!(p instanceof MBeanPermission)) |
| 1028 | return false; |
| 1029 | |
| 1030 | MBeanPermission that = (MBeanPermission) p; |
| 1031 | |
| 1032 | // Actions |
| 1033 | // |
| 1034 | // The actions in 'this' permission must be a |
| 1035 | // superset of the actions in 'that' permission |
| 1036 | // |
| 1037 | |
| 1038 | /* "queryMBeans" implies "queryNames" */ |
| 1039 | if ((this.mask & QueryMBeans) == QueryMBeans) { |
| 1040 | if (((this.mask | QueryNames) & that.mask) != that.mask) { |
| 1041 | //System.out.println("action [with QueryNames] does not imply"); |
| 1042 | return false; |
| 1043 | } |
| 1044 | } else { |
| 1045 | if ((this.mask & that.mask) != that.mask) { |
| 1046 | //System.out.println("action does not imply"); |
| 1047 | return false; |
| 1048 | } |
| 1049 | } |
| 1050 | |
| 1051 | // Target name |
| 1052 | // |
| 1053 | // The 'className' check is true iff: |
| 1054 | // 1) the className in 'this' permission is omitted or "*", or |
| 1055 | // 2) the className in 'that' permission is omitted or "*", or |
| 1056 | // 3) the className in 'this' permission does pattern |
| 1057 | // matching with the className in 'that' permission. |
| 1058 | // |
| 1059 | // The 'member' check is true iff: |
| 1060 | // 1) the member in 'this' permission is omitted or "*", or |
| 1061 | // 2) the member in 'that' permission is omitted or "*", or |
| 1062 | // 3) the member in 'this' permission equals the member in |
| 1063 | // 'that' permission. |
| 1064 | // |
| 1065 | // The 'object name' check is true iff: |
| 1066 | // 1) the object name in 'this' permission is omitted or "*:*", or |
| 1067 | // 2) the object name in 'that' permission is omitted or "*:*", or |
| 1068 | // 3) the object name in 'this' permission does pattern |
| 1069 | // matching with the object name in 'that' permission. |
| 1070 | // |
| 1071 | |
| 1072 | /* Check if this.className implies that.className. |
| 1073 | |
| 1074 | If that.classNamePrefix is empty that means the className is |
| 1075 | irrelevant for this permission check. Otherwise, we do not |
| 1076 | expect that "that" contains a wildcard, since it is a |
| 1077 | needed permission. So we assume that.classNameExactMatch. */ |
| 1078 | |
| 1079 | if (that.classNamePrefix == null) { |
| 1080 | // bottom is implied |
| 1081 | } else if (this.classNamePrefix == null) { |
| 1082 | // bottom implies nothing but itself |
| 1083 | return false; |
| 1084 | } else if (this.classNameExactMatch) { |
| 1085 | if (!that.classNameExactMatch) |
| 1086 | return false; // exact never implies wildcard |
| 1087 | if (!that.classNamePrefix.equals(this.classNamePrefix)) |
| 1088 | return false; // exact match fails |
| 1089 | } else { |
| 1090 | // prefix match, works even if "that" is also a wildcard |
| 1091 | // e.g. a.* implies a.* and a.b.* |
| 1092 | if (!that.classNamePrefix.startsWith(this.classNamePrefix)) |
| 1093 | return false; |
| 1094 | } |
| 1095 | |
| 1096 | /* Check if this.member implies that.member */ |
| 1097 | |
| 1098 | if (that.member == null) { |
| 1099 | // bottom is implied |
| 1100 | } else if (this.member == null) { |
| 1101 | // bottom implies nothing but itself |
| 1102 | return false; |
| 1103 | } else if (this.member.equals("*")) { |
| 1104 | // wildcard implies everything (including itself) |
| 1105 | } else if (!this.member.equals(that.member)) { |
| 1106 | return false; |
| 1107 | } |
| 1108 | |
| 1109 | /* Check if this.objectName implies that.objectName */ |
| 1110 | |
| 1111 | if (that.objectName == null) { |
| 1112 | // bottom is implied |
| 1113 | } else if (this.objectName == null) { |
| 1114 | // bottom implies nothing but itself |
| 1115 | return false; |
| 1116 | } else if (!this.objectName.apply(that.objectName)) { |
| 1117 | /* ObjectName.apply returns false if that.objectName is a |
| 1118 | wildcard so we also allow equals for that case. This |
| 1119 | never happens during real permission checks, but means |
| 1120 | the implies relation is reflexive. */ |
| 1121 | if (!this.objectName.equals(that.objectName)) |
| 1122 | return false; |
| 1123 | } |
| 1124 | |
| 1125 | return true; |
| 1126 | } |
| 1127 | |
| 1128 | /** |
| 1129 | * Checks two MBeanPermission objects for equality. Checks |
| 1130 | * that <i>obj</i> is an MBeanPermission, and has the same |
| 1131 | * name and actions as this object. |
| 1132 | * <P> |
| 1133 | * @param obj the object we are testing for equality with this object. |
| 1134 | * @return true if obj is an MBeanPermission, and has the |
| 1135 | * same name and actions as this MBeanPermission object. |
| 1136 | */ |
| 1137 | public boolean equals(Object obj) { |
| 1138 | if (obj == this) |
| 1139 | return true; |
| 1140 | |
| 1141 | if (! (obj instanceof MBeanPermission)) |
| 1142 | return false; |
| 1143 | |
| 1144 | MBeanPermission that = (MBeanPermission) obj; |
| 1145 | |
| 1146 | return (this.mask == that.mask) && |
| 1147 | (this.getName().equals(that.getName())); |
| 1148 | } |
| 1149 | |
| 1150 | /** |
| 1151 | * Deserialize this object based on its name and actions. |
| 1152 | */ |
| 1153 | private void readObject(ObjectInputStream in) |
| 1154 | throws IOException, ClassNotFoundException { |
| 1155 | in.defaultReadObject(); |
| 1156 | parseName(); |
| 1157 | parseActions(); |
| 1158 | } |
| 1159 | } |