1 /* 2 * Copyright (c) 2005, 2015, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.util.Collection; 25 import java.util.Date; 26 import java.util.HashMap; 27 import java.util.HashSet; 28 import java.util.List; 29 import java.util.Map; 30 import java.util.concurrent.Callable; 31 import java.util.concurrent.ExecutorService; 32 import java.util.concurrent.Executors; 33 import java.util.concurrent.Future; 34 import javax.management.Descriptor; 35 import javax.management.ImmutableDescriptor; 36 import javax.management.ListenerNotFoundException; 37 import javax.management.MBeanNotificationInfo; 38 import javax.management.MBeanRegistration; 39 import javax.management.MBeanServer; 40 import javax.management.Notification; 41 import javax.management.NotificationBroadcasterSupport; 42 import javax.management.NotificationEmitter; 43 import javax.management.NotificationFilter; 44 import javax.management.NotificationListener; 45 import javax.management.ObjectName; 46 47 /** 48 * Class Basic 49 * Basic Description 50 */ 51 public class Basic implements BasicMXBean, NotificationEmitter, 52 MBeanRegistration { 53 54 public static final String EXCEPTION_MESSAGE = "from Basic"; 55 public static final String NOTIFICATION_MESSAGE = "from Basic"; 56 /** Attribute : IntAtt */ 57 private int intAtt = 0; 58 /** Attribute : IntegerAtt */ 59 private Integer integerAtt = 0; 60 /** Attribute : BoolAtt */ 61 private boolean boolAtt = false; 62 /** Attribute : BooleanAtt */ 63 private Boolean booleanAtt = false; 64 /** Attribute : StringAtt */ 65 private String stringAtt = null; 66 /** Attribute : DateAtt */ 67 private Date dateAtt = null; 68 /** Attribute : ObjectNameAtt */ 69 private ObjectName objectNameAtt = null; 70 /** Attribute : NotifDescriptorAsMapAtt */ 71 private Map<String, String> notifDescriptorAsMapAtt = null; 72 /** Attribute : NotifDescriptorAtt */ 73 private Descriptor notifDescriptorAtt = null; 74 /** Attribute : SqeParameter */ 75 private SqeParameter sqeParameterAtt = null; 76 77 /* Creates a new instance of Basic */ 78 @SqeDescriptorKey("CONSTRUCTOR Basic") Basic()79 public Basic() { 80 } 81 82 /* Creates a new instance of Basic */ 83 @SqeDescriptorKey("CONSTRUCTOR Basic") Basic( @qeDescriptorKeyR) SqeParameter param)84 public Basic( 85 @SqeDescriptorKey("CONSTRUCTOR PARAMETER SqeParameter") SqeParameter param) { 86 } 87 88 /** 89 * Get int attribute 90 */ getIntAtt()91 public int getIntAtt() { 92 return intAtt; 93 } 94 95 /** 96 * Set int attribute 97 */ setIntAtt(int value)98 public void setIntAtt(int value) { 99 intAtt = value; 100 } 101 102 /** 103 * Get Integer attribute 104 */ getIntegerAtt()105 public Integer getIntegerAtt() { 106 return integerAtt; 107 } 108 109 /** 110 * Set Integer attribute 111 */ setIntegerAtt(Integer value)112 public void setIntegerAtt(Integer value) { 113 integerAtt = value; 114 } 115 116 /** 117 * Get boolean attribute 118 */ getBoolAtt()119 public boolean getBoolAtt() { 120 return boolAtt; 121 } 122 123 /** 124 * Set boolean attribute 125 */ setBoolAtt(boolean value)126 public void setBoolAtt(boolean value) { 127 boolAtt = value; 128 } 129 130 /** 131 * Get Boolean attribute 132 */ getBooleanAtt()133 public Boolean getBooleanAtt() { 134 return booleanAtt; 135 } 136 137 /** 138 * Set Boolean attribute 139 */ setBooleanAtt(Boolean value)140 public void setBooleanAtt(Boolean value) { 141 booleanAtt = value; 142 } 143 144 /** 145 * Get String attribute 146 */ getStringAtt()147 public String getStringAtt() { 148 return stringAtt; 149 } 150 151 /** 152 * Set String attribute 153 */ setStringAtt(String value)154 public void setStringAtt(String value) { 155 stringAtt = value; 156 } 157 158 /** 159 * Get Date attribute 160 */ getDateAtt()161 public Date getDateAtt() { 162 return dateAtt; 163 } 164 165 /** 166 * Set Date attribute 167 */ setDateAtt(Date value)168 public void setDateAtt(Date value) { 169 dateAtt = value; 170 } 171 172 /** 173 * Get ObjectName attribute 174 */ getObjectNameAtt()175 public ObjectName getObjectNameAtt() { 176 return objectNameAtt; 177 } 178 179 /** 180 * Set ObjectName attribute 181 */ setObjectNameAtt(ObjectName value)182 public void setObjectNameAtt(ObjectName value) { 183 objectNameAtt = value; 184 } 185 186 /** 187 * Get SqeParameter attribute 188 */ getSqeParameterAtt()189 public SqeParameter getSqeParameterAtt() throws Exception { 190 if (sqeParameterAtt == null) { 191 sqeParameterAtt = new SqeParameter(); 192 sqeParameterAtt.setGlop("INITIALIZED"); 193 } 194 195 return sqeParameterAtt; 196 } 197 198 /** 199 * Set SqeParameter attribute 200 */ setSqeParameterAtt(SqeParameter value)201 public void setSqeParameterAtt(SqeParameter value) { 202 sqeParameterAtt = value; 203 } 204 205 /** 206 * Get the Descriptor used to build the NotificationInfo 207 * of emitted notifications. 208 */ getNotifDescriptorAsMapAtt()209 public Map<String, String> getNotifDescriptorAsMapAtt() { 210 if (notifDescriptorAsMapAtt == null) { 211 initNotifDescriptorAtt(); 212 } 213 214 return notifDescriptorAsMapAtt; 215 } 216 217 /** 218 * Set the Descriptor used to build the NotificationInfo 219 * of emitted notifications. 220 * <br>A Map<String, Object> would better fit Descriptor needs but then 221 * it is not convertible according the MXBean specification so the MBean 222 * registration fails. 223 * As we plan to test our custom Descriptor finds its way into 224 * the metadata of emitted notifications, String is good enough. 225 */ setNotifDescriptorAsMapAtt(Map<String, String> value)226 public void setNotifDescriptorAsMapAtt(Map<String, String> value) { 227 notifDescriptorAsMapAtt = new HashMap<String, String>(value); 228 notifDescriptorAtt = new ImmutableDescriptor(value); 229 } 230 231 /** 232 * Do nothing 233 */ doNothing()234 public void doNothing() { 235 // I said NOTHING ! 236 } 237 238 /** 239 * Do take SqeParameter as a parameter 240 */ doWeird(SqeParameter param)241 public void doWeird(SqeParameter param) { 242 } 243 244 /** 245 * Throw an Exception 246 */ throwException()247 public void throwException() throws Exception { 248 throw new Exception(EXCEPTION_MESSAGE); 249 } 250 251 /** 252 * Throw an Error 253 */ throwError()254 public void throwError() { 255 throw new InternalError(EXCEPTION_MESSAGE); 256 } 257 258 /** 259 * Reset all attributes 260 */ reset()261 public void reset() { 262 intAtt = 0; 263 integerAtt = 0; 264 boolAtt = false; 265 booleanAtt = Boolean.FALSE; 266 stringAtt = null; 267 dateAtt = null; 268 objectNameAtt = null; 269 } 270 271 /** 272 * Returns the weather for the coming days 273 * @param verbose <code>boolean</code> verbosity 274 * @throws java.lang.Exception <code>storm</code> 275 * @return <code>ObjectName</code> 276 */ getWeather(boolean verbose)277 public Weather getWeather(boolean verbose) 278 throws java.lang.Exception { 279 return Weather.SUNNY; 280 } 281 282 // Starting here are the 4 methods of MBeanRegistration interface. 283 // We use that to grab the ObjectName the MBean is registered with. 284 // preRegister(MBeanServer server, ObjectName name)285 public ObjectName preRegister(MBeanServer server, ObjectName name) 286 throws Exception { 287 // Grab a reference on the MBeanServer we're registered in. 288 mbs = server; 289 // Compute the name we're registered with. 290 if (name != null) { 291 mbeanName = name; 292 return name; 293 } else { 294 mbeanName = 295 new ObjectName("sqe:type=" + Basic.class.getName()); 296 return mbeanName; 297 } 298 } 299 postRegister(Boolean registrationDone)300 public void postRegister(Boolean registrationDone) { 301 // Do nothing 302 } 303 preDeregister()304 public void preDeregister() throws Exception { 305 // Do nothing 306 } 307 postDeregister()308 public void postDeregister() { 309 // Do nothing 310 } 311 312 /** 313 * Send one Notification of the provided notifType type. 314 */ sendNotification(String notifType)315 public void sendNotification(String notifType) { 316 Notification notification = null; 317 318 if (notifType.equals(NOTIF_TYPE_0)) { 319 notification = new Notification(NOTIF_TYPE_0, 320 mbeanName, 321 seqNumber, 322 NOTIFICATION_MESSAGE); 323 } else if (notifType.equals(NOTIF_TYPE_1)) { 324 notification = new SqeNotification(NOTIF_TYPE_1, 325 mbeanName, 326 seqNumber, 327 NOTIFICATION_MESSAGE); 328 } 329 330 seqNumber++; 331 broadcaster.sendNotification(notification); 332 } 333 334 /** 335 * That method starts a set of threads, each thread sends a given number of 336 * notifications. 337 * The number of threads can be set via the attribute numOfNotificationSenders. 338 * The number of notification sent by each thread can be set via 339 * the attribute numOfNotificationSenderLoops. 340 * Depending on the parameter customNotification we send either custom 341 * notification(s) or MBeanServer registration and unregistration notification(s). 342 * When customNotification=true the total number of notification(s) sent is 343 * (numOfNotificationSenders * numOfNotificationSenderLoops). They are 344 * sequentially of type NOTIF_TYPE_0 then NOTIF_TYPE_1 and so on. 345 * 346 * When customNotification=false the total number of notification(s) sent is 347 * (numOfNotificationSenders * numOfNotificationSenderLoops) registration 348 * notification(s) 349 * + 350 * (numOfNotificationSenders * numOfNotificationSenderLoops) unregistration 351 * notification(s) 352 * 353 * @throws java.lang.Exception 354 */ sendNotificationWave(boolean customNotification)355 public void sendNotificationWave(boolean customNotification) throws 356 Exception { 357 // Build the set of notification sender. 358 Collection<Callable<Integer>> tasks = 359 new HashSet<Callable<Integer>>(numOfNotificationSenders); 360 361 for (int i = 1; i <= numOfNotificationSenders; i++) { 362 tasks.add(new NotifSender(numOfNotificationSenderLoops, 363 customNotification, i)); 364 } 365 366 // Start all notification sender in parallel. 367 ExecutorService execServ = null; 368 try { 369 execServ = Executors.newFixedThreadPool(numOfNotificationSenders); 370 List<Future<Integer>> taskHandlers = execServ.invokeAll(tasks); 371 checkNotifSenderThreadStatus(taskHandlers); 372 } finally { 373 if (!execServ.isShutdown()) { 374 execServ.shutdown(); 375 } 376 } 377 } 378 setNumOfNotificationSenders(int value)379 public void setNumOfNotificationSenders(int value) { 380 numOfNotificationSenders = value; 381 } 382 setNumOfNotificationSenderLoops(int value)383 public void setNumOfNotificationSenderLoops(int value) { 384 numOfNotificationSenderLoops = value; 385 } 386 387 /** 388 * MBean Notification support 389 * You shouldn't update these methods 390 */ 391 // <editor-fold defaultstate="collapsed" desc=" Generated Code "> addNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback)392 public void addNotificationListener(NotificationListener listener, 393 NotificationFilter filter, 394 Object handback) 395 throws IllegalArgumentException { 396 broadcaster.addNotificationListener(listener, filter, handback); 397 } 398 getNotificationInfo()399 public MBeanNotificationInfo[] getNotificationInfo() { 400 if (notifDescriptorAtt == null) { 401 initNotifDescriptorAtt(); 402 } 403 404 return new MBeanNotificationInfo[]{ 405 new MBeanNotificationInfo(new String[]{ 406 NOTIF_TYPE_0 407 }, 408 javax.management.Notification.class.getName(), 409 "Standard JMX Notification", 410 notifDescriptorAtt), 411 new MBeanNotificationInfo(new String[]{ 412 NOTIF_TYPE_1 413 }, 414 SqeNotification.class.getName(), 415 "SQE Notification", 416 notifDescriptorAtt) 417 }; 418 } 419 removeNotificationListener(NotificationListener listener)420 public void removeNotificationListener(NotificationListener listener) 421 throws ListenerNotFoundException { 422 broadcaster.removeNotificationListener(listener); 423 } 424 removeNotificationListener(NotificationListener listener, NotificationFilter filter, Object handback)425 public void removeNotificationListener(NotificationListener listener, 426 NotificationFilter filter, 427 Object handback) 428 throws ListenerNotFoundException { 429 broadcaster.removeNotificationListener(listener, filter, handback); 430 } 431 // </editor-fold> getNextSeqNumber()432 private synchronized long getNextSeqNumber() { 433 return seqNumber++; 434 } 435 initNotifDescriptorAtt()436 private void initNotifDescriptorAtt() { 437 String key = "CRABE"; 438 String value = "TAMBOUR"; 439 notifDescriptorAtt = 440 new ImmutableDescriptor(new String[]{key + "=" + value}); 441 notifDescriptorAsMapAtt = 442 new HashMap<String, String>(); 443 notifDescriptorAsMapAtt.put(key, value); 444 } 445 checkNotifSenderThreadStatus( List<Future<Integer>> taskHandlers)446 private void checkNotifSenderThreadStatus( 447 List<Future<Integer>> taskHandlers) 448 throws Exception { 449 String msgTag = "Basic::checkNotifSenderThreadStatus: "; 450 // Grab back status of each notification sender. 451 for (Future<Integer> f : taskHandlers) { 452 if (f.isCancelled()) { 453 String message = msgTag + 454 "---- ERROR : One thread has been cancelled"; 455 System.out.println(message); 456 throw new RuntimeException(message); 457 } else { 458 Integer effectiveNumOfLoops = f.get(); 459 460 if (effectiveNumOfLoops != numOfNotificationSenderLoops) { 461 String message = msgTag + "---- ERROR : One thread did " + 462 effectiveNumOfLoops + " loops in place of " + 463 numOfNotificationSenderLoops; 464 System.out.println(message); 465 throw new RuntimeException(message); 466 } 467 } 468 } 469 } 470 // 471 private int numOfNotificationSenderLoops = 2; 472 private int numOfNotificationSenders = 13; 473 474 private class NotifSender implements Callable<Integer> { 475 476 private int cycles; 477 private boolean customNotification; 478 private int senderID; 479 NotifSender(int cycles, boolean customNotification, int id)480 public NotifSender(int cycles, boolean customNotification, int id) { 481 this.cycles = cycles; 482 this.customNotification = customNotification; 483 this.senderID = id; 484 } 485 call()486 public Integer call() throws Exception { 487 int callsDone = 0; 488 489 try { 490 for (int i = 1; i <= cycles; i++) { 491 if (customNotification) { 492 if (i % 2 == 0) { 493 sendNotification(NOTIF_TYPE_0); 494 } else { 495 sendNotification(NOTIF_TYPE_1); 496 } 497 } else { 498 ObjectName mbeanName = new ObjectName("SQE:type=" + 499 mbeanClassName + ",senderID=" + senderID); 500 mbs.createMBean(mbeanClassName, mbeanName); 501 mbs.unregisterMBean(mbeanName); 502 } 503 callsDone++; 504 } 505 } catch (Exception e) { 506 System.out.println("NotifSender::call: (ERROR) Thread [" + senderID + 507 "] failed after " + callsDone + " cycles"); 508 throw e; 509 } 510 511 return Integer.valueOf(callsDone); 512 } 513 } 514 515 // 516 private long seqNumber; 517 private final NotificationBroadcasterSupport broadcaster = 518 new NotificationBroadcasterSupport(); 519 private ObjectName mbeanName; 520 private MBeanServer mbs; 521 private String mbeanClassName = "Simple"; 522 523 /** 524 * Notification types definitions. To use when creating JMX Notifications. 525 */ 526 public static final String NOTIF_TYPE_0 = 527 "sqe.notification.a.type"; 528 public static final String NOTIF_TYPE_1 = 529 "sqe.notification.b.type"; 530 } 531