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annotate src/org/eclipse/jetty/server/AsyncContinuation.java @ 919:dd6b1f079634
remove AsyncContinuation._lastAsyncListeners
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Sun, 09 Oct 2016 03:45:31 -0600 |
| parents | 7b62446899c6 |
| children | 3268ddf919d4 |
| rev | line source |
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1 // |
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2 // ======================================================================== |
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3 // Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd. |
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4 // ------------------------------------------------------------------------ |
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5 // All rights reserved. This program and the accompanying materials |
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6 // are made available under the terms of the Eclipse Public License v1.0 |
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7 // and Apache License v2.0 which accompanies this distribution. |
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8 // |
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9 // The Eclipse Public License is available at |
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10 // http://www.eclipse.org/legal/epl-v10.html |
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11 // |
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12 // The Apache License v2.0 is available at |
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13 // http://www.opensource.org/licenses/apache2.0.php |
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14 // |
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15 // You may elect to redistribute this code under either of these licenses. |
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16 // ======================================================================== |
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17 // |
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18 |
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19 package org.eclipse.jetty.server; |
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20 |
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21 import javax.servlet.AsyncContext; |
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22 import javax.servlet.AsyncEvent; |
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23 import javax.servlet.AsyncListener; |
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24 import javax.servlet.RequestDispatcher; |
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25 import javax.servlet.ServletException; |
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26 |
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27 import java.util.ArrayList; |
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28 import java.util.List; |
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29 |
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30 import javax.servlet.ServletContext; |
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31 import javax.servlet.ServletRequest; |
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32 import javax.servlet.ServletResponse; |
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33 import javax.servlet.http.HttpServletRequest; |
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34 |
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35 import org.eclipse.jetty.continuation.Continuation; |
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36 import org.eclipse.jetty.continuation.ContinuationThrowable; |
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37 import org.eclipse.jetty.continuation.ContinuationListener; |
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38 import org.eclipse.jetty.io.AsyncEndPoint; |
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39 import org.eclipse.jetty.io.EndPoint; |
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40 import org.eclipse.jetty.server.handler.ContextHandler; |
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41 import org.eclipse.jetty.server.handler.ContextHandler.Context; |
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42 import org.eclipse.jetty.util.URIUtil; |
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43 import org.slf4j.Logger; |
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44 import org.slf4j.LoggerFactory; |
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45 import org.eclipse.jetty.util.thread.Timeout; |
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46 |
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47 /* ------------------------------------------------------------ */ |
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48 /** Implementation of Continuation and AsyncContext interfaces |
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49 * |
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50 */ |
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51 public class AsyncContinuation implements AsyncContext, Continuation |
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52 { |
| 865 | 53 private static final Logger LOG = LoggerFactory.getLogger(AsyncContinuation.class); |
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54 |
| 865 | 55 private final static long DEFAULT_TIMEOUT=30000L; |
| 56 | |
| 57 private final static ContinuationThrowable __exception = new ContinuationThrowable(); | |
| 58 | |
| 59 // STATES: | |
| 60 // handling() suspend() unhandle() resume() complete() doComplete() | |
| 61 // startAsync() dispatch() | |
| 62 // IDLE DISPATCHED | |
| 63 // DISPATCHED ASYNCSTARTED UNCOMPLETED | |
| 64 // ASYNCSTARTED ASYNCWAIT REDISPATCHING COMPLETING | |
| 65 // REDISPATCHING REDISPATCHED | |
| 66 // ASYNCWAIT REDISPATCH COMPLETING | |
| 67 // REDISPATCH REDISPATCHED | |
| 68 // REDISPATCHED ASYNCSTARTED UNCOMPLETED | |
| 69 // COMPLETING UNCOMPLETED UNCOMPLETED | |
| 70 // UNCOMPLETED COMPLETED | |
| 71 // COMPLETED | |
| 72 private static final int __IDLE=0; // Idle request | |
| 73 private static final int __DISPATCHED=1; // Request dispatched to filter/servlet | |
| 74 private static final int __UNCOMPLETED=8; // Request is completable | |
| 75 private static final int __COMPLETED=9; // Request is complete | |
| 76 | |
| 77 /* ------------------------------------------------------------ */ | |
| 78 protected AbstractHttpConnection _connection; | |
| 79 private List<AsyncListener> _asyncListeners; | |
| 80 private List<ContinuationListener> _continuationListeners; | |
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81 |
| 865 | 82 /* ------------------------------------------------------------ */ |
| 83 private int _state; | |
| 84 private boolean _initial; | |
| 85 private boolean _resumed; | |
| 86 private boolean _expired; | |
| 87 private volatile boolean _responseWrapped; | |
| 88 private long _timeoutMs=DEFAULT_TIMEOUT; | |
| 89 private AsyncEventState _event; | |
| 90 private volatile long _expireAt; | |
| 91 private volatile boolean _continuation; | |
| 92 | |
| 93 /* ------------------------------------------------------------ */ | |
| 94 protected AsyncContinuation() | |
| 95 { | |
| 96 _state=__IDLE; | |
| 97 _initial=true; | |
| 98 } | |
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99 |
| 865 | 100 /* ------------------------------------------------------------ */ |
| 101 protected void setConnection(final AbstractHttpConnection connection) | |
| 102 { | |
| 103 synchronized(this) | |
| 104 { | |
| 105 _connection=connection; | |
| 106 } | |
| 107 } | |
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108 |
| 865 | 109 /* ------------------------------------------------------------ */ |
| 110 public void addListener(AsyncListener listener) | |
| 111 { | |
| 112 synchronized(this) | |
| 113 { | |
| 114 if (_asyncListeners==null) | |
| 115 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 116 _asyncListeners.add(listener); | |
| 117 } | |
| 118 } | |
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119 |
| 865 | 120 /* ------------------------------------------------------------ */ |
| 121 public void addListener(AsyncListener listener,ServletRequest request, ServletResponse response) | |
| 122 { | |
| 123 synchronized(this) | |
| 124 { | |
| 125 // TODO handle the request/response ??? | |
| 126 if (_asyncListeners==null) | |
| 127 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 128 _asyncListeners.add(listener); | |
| 129 } | |
| 130 } | |
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131 |
| 865 | 132 /* ------------------------------------------------------------ */ |
| 133 public void addContinuationListener(ContinuationListener listener) | |
| 134 { | |
| 135 synchronized(this) | |
| 136 { | |
| 137 if (_continuationListeners==null) | |
| 138 _continuationListeners=new ArrayList<ContinuationListener>(); | |
| 139 _continuationListeners.add(listener); | |
| 140 } | |
| 141 } | |
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142 |
| 865 | 143 /* ------------------------------------------------------------ */ |
| 144 public void setTimeout(long ms) | |
| 145 { | |
| 146 synchronized(this) | |
| 147 { | |
| 148 _timeoutMs=ms; | |
| 149 } | |
| 150 } | |
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151 |
| 865 | 152 /* ------------------------------------------------------------ */ |
| 153 public long getTimeout() | |
| 154 { | |
| 155 synchronized(this) | |
| 156 { | |
| 157 return _timeoutMs; | |
| 158 } | |
| 159 } | |
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160 |
| 865 | 161 /* ------------------------------------------------------------ */ |
| 162 public AsyncEventState getAsyncEventState() | |
| 163 { | |
| 164 synchronized(this) | |
| 165 { | |
| 166 return _event; | |
| 167 } | |
| 168 } | |
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169 |
| 865 | 170 /* ------------------------------------------------------------ */ |
| 171 /** | |
| 172 * @see org.eclipse.jetty.continuation.Continuation#keepWrappers() | |
| 173 */ | |
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174 |
| 865 | 175 /* ------------------------------------------------------------ */ |
| 176 /** | |
| 177 * @see org.eclipse.jetty.continuation.Continuation#isResponseWrapped() | |
| 178 */ | |
| 179 public boolean isResponseWrapped() | |
| 180 { | |
| 181 return _responseWrapped; | |
| 182 } | |
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183 |
| 865 | 184 /* ------------------------------------------------------------ */ |
| 185 /* (non-Javadoc) | |
| 186 * @see javax.servlet.ServletRequest#isInitial() | |
| 187 */ | |
| 188 public boolean isInitial() | |
| 189 { | |
| 190 synchronized(this) | |
| 191 { | |
| 192 return _initial; | |
| 193 } | |
| 194 } | |
| 195 | |
| 196 public boolean isContinuation() | |
| 197 { | |
| 198 return _continuation; | |
| 199 } | |
| 200 | |
| 201 /* ------------------------------------------------------------ */ | |
| 202 /* (non-Javadoc) | |
| 203 * @see javax.servlet.ServletRequest#isSuspended() | |
| 204 */ | |
| 205 public boolean isSuspended() | |
| 206 { | |
| 207 synchronized(this) | |
| 208 { | |
| 209 switch(_state) | |
| 210 { | |
| 211 default: | |
| 212 return false; | |
| 213 } | |
| 214 } | |
| 215 } | |
| 216 | |
| 217 /* ------------------------------------------------------------ */ | |
| 218 public boolean isSuspending() | |
| 219 { | |
| 220 synchronized(this) | |
| 221 { | |
| 222 switch(_state) | |
| 223 { | |
| 224 default: | |
| 225 return false; | |
| 226 } | |
| 227 } | |
| 228 } | |
| 229 | |
| 230 /* ------------------------------------------------------------ */ | |
| 231 public boolean isDispatchable() | |
| 232 { | |
| 233 synchronized(this) | |
| 234 { | |
| 235 switch(_state) | |
| 236 { | |
| 237 default: | |
| 238 return false; | |
| 239 } | |
| 240 } | |
| 241 } | |
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242 |
| 865 | 243 /* ------------------------------------------------------------ */ |
| 244 @Override | |
| 245 public String toString() | |
| 246 { | |
| 247 synchronized (this) | |
| 248 { | |
| 249 return super.toString()+"@"+getStatusString(); | |
| 250 } | |
| 251 } | |
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252 |
| 865 | 253 /* ------------------------------------------------------------ */ |
| 254 public String getStatusString() | |
| 255 { | |
| 256 synchronized (this) | |
| 257 { | |
| 258 return | |
| 259 ((_state==__IDLE)?"IDLE": | |
| 260 (_state==__DISPATCHED)?"DISPATCHED": | |
| 261 (_state==__UNCOMPLETED)?"UNCOMPLETED": | |
| 262 (_state==__COMPLETED)?"COMPLETE": | |
| 263 ("UNKNOWN?"+_state))+ | |
| 264 (_initial?",initial":"")+ | |
| 265 (_resumed?",resumed":"")+ | |
| 266 (_expired?",expired":""); | |
| 267 } | |
| 268 } | |
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269 |
| 865 | 270 /* ------------------------------------------------------------ */ |
| 271 /** | |
| 272 * @return false if the handling of the request should not proceed | |
| 273 */ | |
| 274 protected boolean handling() | |
| 275 { | |
| 276 synchronized (this) | |
| 277 { | |
| 278 _continuation=false; | |
| 279 | |
| 280 switch(_state) | |
| 281 { | |
| 282 case __IDLE: | |
| 283 _initial=true; | |
| 284 _state=__DISPATCHED; | |
| 285 if (_asyncListeners!=null) | |
| 286 _asyncListeners.clear(); | |
| 287 return true; | |
| 288 | |
| 289 default: | |
| 290 throw new IllegalStateException(this.getStatusString()); | |
| 291 } | |
| 292 } | |
| 293 } | |
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294 |
| 865 | 295 /* ------------------------------------------------------------ */ |
| 296 /** | |
| 297 * Signal that the HttpConnection has finished handling the request. | |
| 298 * For blocking connectors, this call may block if the request has | |
| 299 * been suspended (startAsync called). | |
| 300 * @return true if handling is complete, false if the request should | |
| 301 * be handled again (eg because of a resume that happened before unhandle was called) | |
| 302 */ | |
| 303 protected boolean unhandle() | |
| 304 { | |
| 305 synchronized (this) | |
| 306 { | |
| 307 switch(_state) | |
| 308 { | |
| 309 case __DISPATCHED: | |
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310 _state = __UNCOMPLETED; |
| 865 | 311 return true; |
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312 |
| 865 | 313 case __IDLE: |
| 314 throw new IllegalStateException(this.getStatusString()); | |
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315 |
| 865 | 316 default: |
| 317 throw new IllegalStateException(this.getStatusString()); | |
| 318 } | |
| 319 } | |
| 320 } | |
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321 |
| 865 | 322 /* ------------------------------------------------------------ */ |
| 323 public void dispatch() | |
| 324 { | |
| 325 boolean dispatch=false; | |
| 326 synchronized (this) | |
| 327 { | |
| 328 switch(_state) | |
| 329 { | |
| 330 default: | |
| 331 throw new IllegalStateException(this.getStatusString()); | |
| 332 } | |
| 333 } | |
| 334 } | |
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335 |
| 865 | 336 /* ------------------------------------------------------------ */ |
| 337 protected void expired() | |
| 338 { | |
| 339 } | |
| 340 | |
| 341 /* ------------------------------------------------------------ */ | |
| 342 /* (non-Javadoc) | |
| 343 * @see javax.servlet.ServletRequest#complete() | |
| 344 */ | |
| 345 public void complete() | |
| 346 { | |
| 347 // just like resume, except don't set _resumed=true; | |
| 348 boolean dispatch=false; | |
| 349 synchronized (this) | |
| 350 { | |
| 351 switch(_state) | |
| 352 { | |
| 353 case __DISPATCHED: | |
| 354 throw new IllegalStateException(this.getStatusString()); | |
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355 |
| 865 | 356 default: |
| 357 throw new IllegalStateException(this.getStatusString()); | |
| 358 } | |
| 359 } | |
| 360 } | |
| 361 | |
| 362 /* ------------------------------------------------------------ */ | |
| 363 /* (non-Javadoc) | |
| 364 * @see javax.servlet.ServletRequest#complete() | |
| 365 */ | |
| 366 public void errorComplete() | |
| 367 { | |
| 368 // just like complete except can overrule a prior dispatch call; | |
| 369 synchronized (this) | |
| 370 { | |
| 371 switch(_state) | |
| 372 { | |
| 373 default: | |
| 374 throw new IllegalStateException(this.getStatusString()); | |
| 375 } | |
| 376 } | |
| 377 } | |
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378 |
| 865 | 379 /* ------------------------------------------------------------ */ |
| 380 @Override | |
| 381 public <T extends AsyncListener> T createListener(Class<T> clazz) throws ServletException | |
| 382 { | |
| 383 try | |
| 384 { | |
| 385 // TODO inject | |
| 386 return clazz.newInstance(); | |
| 387 } | |
| 388 catch(Exception e) | |
| 389 { | |
| 390 throw new ServletException(e); | |
| 391 } | |
| 392 } | |
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393 |
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394 |
| 865 | 395 /* ------------------------------------------------------------ */ |
| 396 /* (non-Javadoc) | |
| 397 * @see javax.servlet.ServletRequest#complete() | |
| 398 */ | |
| 399 protected void doComplete(Throwable ex) | |
| 400 { | |
| 401 final List<ContinuationListener> cListeners; | |
| 402 final List<AsyncListener> aListeners; | |
| 403 synchronized (this) | |
| 404 { | |
| 405 switch(_state) | |
| 406 { | |
| 407 case __UNCOMPLETED: | |
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408 _state = __COMPLETED; |
| 865 | 409 cListeners=_continuationListeners; |
| 410 aListeners=_asyncListeners; | |
| 411 break; | |
| 412 | |
| 413 default: | |
| 414 cListeners=null; | |
| 415 aListeners=null; | |
| 416 throw new IllegalStateException(this.getStatusString()); | |
| 417 } | |
| 418 } | |
| 419 | |
| 420 if (aListeners!=null) | |
| 421 { | |
| 422 for (AsyncListener listener : aListeners) | |
| 423 { | |
| 424 try | |
| 425 { | |
| 426 if (ex!=null) | |
| 427 { | |
| 428 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_EXCEPTION,ex); | |
| 429 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_MESSAGE,ex.getMessage()); | |
| 430 listener.onError(_event); | |
| 431 } | |
| 432 else | |
| 433 listener.onComplete(_event); | |
| 434 } | |
| 435 catch(Exception e) | |
| 436 { | |
| 437 LOG.warn("",e); | |
| 438 } | |
| 439 } | |
| 440 } | |
| 441 if (cListeners!=null) | |
| 442 { | |
| 443 for (ContinuationListener listener : cListeners) | |
| 444 { | |
| 445 try | |
| 446 { | |
| 447 listener.onComplete(this); | |
| 448 } | |
| 449 catch(Exception e) | |
| 450 { | |
| 451 LOG.warn("",e); | |
| 452 } | |
| 453 } | |
| 454 } | |
| 455 } | |
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456 |
| 865 | 457 /* ------------------------------------------------------------ */ |
| 458 protected void recycle() | |
| 459 { | |
| 460 synchronized (this) | |
| 461 { | |
| 462 switch(_state) | |
| 463 { | |
| 464 case __DISPATCHED: | |
| 465 throw new IllegalStateException(getStatusString()); | |
| 466 default: | |
| 467 _state=__IDLE; | |
| 468 } | |
| 469 _initial = true; | |
| 470 _resumed=false; | |
| 471 _expired=false; | |
| 472 _responseWrapped=false; | |
| 473 cancelTimeout(); | |
| 474 _timeoutMs=DEFAULT_TIMEOUT; | |
| 475 _continuationListeners=null; | |
| 476 } | |
| 477 } | |
| 478 | |
| 479 /* ------------------------------------------------------------ */ | |
| 480 public void cancel() | |
| 481 { | |
| 482 synchronized (this) | |
| 483 { | |
| 484 cancelTimeout(); | |
| 485 _continuationListeners=null; | |
| 486 } | |
| 487 } | |
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488 |
| 865 | 489 /* ------------------------------------------------------------ */ |
| 490 protected void scheduleDispatch() | |
| 491 { | |
| 492 EndPoint endp=_connection.getEndPoint(); | |
| 493 if (!endp.isBlocking()) | |
| 494 { | |
| 495 ((AsyncEndPoint)endp).asyncDispatch(); | |
| 496 } | |
| 497 } | |
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498 |
| 865 | 499 /* ------------------------------------------------------------ */ |
| 500 protected void scheduleTimeout() | |
| 501 { | |
| 502 EndPoint endp=_connection.getEndPoint(); | |
| 503 if (_timeoutMs>0) | |
| 504 { | |
| 505 if (endp.isBlocking()) | |
| 506 { | |
| 507 synchronized(this) | |
| 508 { | |
| 509 _expireAt = System.currentTimeMillis()+_timeoutMs; | |
| 510 long wait=_timeoutMs; | |
| 511 while (_expireAt>0 && wait>0 && _connection.getServer().isRunning()) | |
| 512 { | |
| 513 try | |
| 514 { | |
| 515 this.wait(wait); | |
| 516 } | |
| 517 catch (InterruptedException e) | |
| 518 { | |
| 519 LOG.trace("",e); | |
| 520 } | |
| 521 wait=_expireAt-System.currentTimeMillis(); | |
| 522 } | |
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523 |
| 865 | 524 if (_expireAt>0 && wait<=0 && _connection.getServer().isRunning()) |
| 525 { | |
| 526 expired(); | |
| 527 } | |
| 528 } | |
| 529 } | |
| 530 else | |
| 531 { | |
| 532 ((AsyncEndPoint)endp).scheduleTimeout(_event._timeout,_timeoutMs); | |
| 533 } | |
| 534 } | |
| 535 } | |
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536 |
| 865 | 537 /* ------------------------------------------------------------ */ |
| 538 protected void cancelTimeout() | |
| 539 { | |
| 540 EndPoint endp=_connection.getEndPoint(); | |
| 541 if (endp.isBlocking()) | |
| 542 { | |
| 543 synchronized(this) | |
| 544 { | |
| 545 _expireAt=0; | |
| 546 this.notifyAll(); | |
| 547 } | |
| 548 } | |
| 549 else | |
| 550 { | |
| 551 final AsyncEventState event=_event; | |
| 552 if (event!=null) | |
| 553 { | |
| 554 ((AsyncEndPoint)endp).cancelTimeout(event._timeout); | |
| 555 } | |
| 556 } | |
| 557 } | |
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558 |
| 865 | 559 /* ------------------------------------------------------------ */ |
| 560 public boolean isCompleting() | |
| 561 { | |
| 562 synchronized (this) | |
| 563 { | |
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564 return false; |
| 865 | 565 } |
| 566 } | |
| 567 | |
| 568 /* ------------------------------------------------------------ */ | |
| 569 boolean isUncompleted() | |
| 570 { | |
| 571 synchronized (this) | |
| 572 { | |
| 573 return _state==__UNCOMPLETED; | |
| 574 } | |
| 575 } | |
| 576 | |
| 577 /* ------------------------------------------------------------ */ | |
| 578 public boolean isComplete() | |
| 579 { | |
| 580 synchronized (this) | |
| 581 { | |
| 582 return _state==__COMPLETED; | |
| 583 } | |
| 584 } | |
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585 |
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586 |
| 865 | 587 /* ------------------------------------------------------------ */ |
| 588 public boolean isAsyncStarted() | |
| 589 { | |
| 590 synchronized (this) | |
| 591 { | |
| 592 switch(_state) | |
| 593 { | |
| 594 default: | |
| 595 return false; | |
| 596 } | |
| 597 } | |
| 598 } | |
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599 |
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600 |
| 865 | 601 /* ------------------------------------------------------------ */ |
| 602 public boolean isAsync() | |
| 603 { | |
| 604 synchronized (this) | |
| 605 { | |
| 606 switch(_state) | |
| 607 { | |
| 608 case __IDLE: | |
| 609 case __DISPATCHED: | |
| 610 case __UNCOMPLETED: | |
| 611 case __COMPLETED: | |
| 612 return false; | |
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613 |
| 865 | 614 default: |
| 615 return true; | |
| 616 } | |
| 617 } | |
| 618 } | |
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619 |
| 865 | 620 /* ------------------------------------------------------------ */ |
| 621 public void dispatch(ServletContext context, String path) | |
| 622 { | |
| 623 _event._dispatchContext=context; | |
| 624 _event.setPath(path); | |
| 625 dispatch(); | |
| 626 } | |
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627 |
| 865 | 628 /* ------------------------------------------------------------ */ |
| 629 public void dispatch(String path) | |
| 630 { | |
| 631 _event.setPath(path); | |
| 632 dispatch(); | |
| 633 } | |
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634 |
| 865 | 635 /* ------------------------------------------------------------ */ |
| 636 public Request getBaseRequest() | |
| 637 { | |
| 638 return _connection.getRequest(); | |
| 639 } | |
| 640 | |
| 641 /* ------------------------------------------------------------ */ | |
| 642 public ServletRequest getRequest() | |
| 643 { | |
| 644 if (_event!=null) | |
| 645 return _event.getSuppliedRequest(); | |
| 646 return _connection.getRequest(); | |
| 647 } | |
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648 |
| 865 | 649 /* ------------------------------------------------------------ */ |
| 650 public ServletResponse getResponse() | |
| 651 { | |
| 652 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 653 return _event.getSuppliedResponse(); | |
| 654 return _connection.getResponse(); | |
| 655 } | |
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656 |
| 865 | 657 /* ------------------------------------------------------------ */ |
| 658 public void start(final Runnable run) | |
| 659 { | |
| 660 final AsyncEventState event=_event; | |
| 661 if (event!=null) | |
| 662 { | |
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663 _connection.getServer().threadPool.execute(new Runnable() |
| 865 | 664 { |
| 665 public void run() | |
| 666 { | |
| 667 ((Context)event.getServletContext()).getContextHandler().handle(run); | |
| 668 } | |
| 669 }); | |
| 670 } | |
| 671 } | |
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672 |
| 865 | 673 /* ------------------------------------------------------------ */ |
| 674 public boolean hasOriginalRequestAndResponse() | |
| 675 { | |
| 676 synchronized (this) | |
| 677 { | |
| 678 return (_event!=null && _event.getSuppliedRequest()==_connection._request && _event.getSuppliedResponse()==_connection._response); | |
| 679 } | |
| 680 } | |
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681 |
| 865 | 682 /* ------------------------------------------------------------ */ |
| 683 public ContextHandler getContextHandler() | |
| 684 { | |
| 685 final AsyncEventState event=_event; | |
| 686 if (event!=null) | |
| 687 return ((Context)event.getServletContext()).getContextHandler(); | |
| 688 return null; | |
| 689 } | |
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690 |
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691 |
| 865 | 692 /* ------------------------------------------------------------ */ |
| 693 /** | |
| 694 * @see Continuation#isResumed() | |
| 695 */ | |
| 696 public boolean isResumed() | |
| 697 { | |
| 698 synchronized (this) | |
| 699 { | |
| 700 return _resumed; | |
| 701 } | |
| 702 } | |
| 703 /* ------------------------------------------------------------ */ | |
| 704 /** | |
| 705 * @see Continuation#isExpired() | |
| 706 */ | |
| 707 public boolean isExpired() | |
| 708 { | |
| 709 synchronized (this) | |
| 710 { | |
| 711 return _expired; | |
| 712 } | |
| 713 } | |
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714 |
| 865 | 715 /* ------------------------------------------------------------ */ |
| 716 /** | |
| 717 * @see Continuation#resume() | |
| 718 */ | |
| 719 public void resume() | |
| 720 { | |
| 721 dispatch(); | |
| 722 } | |
| 723 | |
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724 |
| 865 | 725 /* ------------------------------------------------------------ */ |
| 726 /** | |
| 727 * @see org.eclipse.jetty.continuation.Continuation#getServletResponse() | |
| 728 */ | |
| 729 public ServletResponse getServletResponse() | |
| 730 { | |
| 731 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 732 return _event.getSuppliedResponse(); | |
| 733 return _connection.getResponse(); | |
| 734 } | |
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735 |
| 865 | 736 /* ------------------------------------------------------------ */ |
| 737 /** | |
| 738 * @see org.eclipse.jetty.continuation.Continuation#getAttribute(java.lang.String) | |
| 739 */ | |
| 740 public Object getAttribute(String name) | |
| 741 { | |
| 742 return _connection.getRequest().getAttribute(name); | |
| 743 } | |
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744 |
| 865 | 745 /* ------------------------------------------------------------ */ |
| 746 /** | |
| 747 * @see org.eclipse.jetty.continuation.Continuation#removeAttribute(java.lang.String) | |
| 748 */ | |
| 749 public void removeAttribute(String name) | |
| 750 { | |
| 751 _connection.getRequest().removeAttribute(name); | |
| 752 } | |
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753 |
| 865 | 754 /* ------------------------------------------------------------ */ |
| 755 /** | |
| 756 * @see org.eclipse.jetty.continuation.Continuation#setAttribute(java.lang.String, java.lang.Object) | |
| 757 */ | |
| 758 public void setAttribute(String name, Object attribute) | |
| 759 { | |
| 760 _connection.getRequest().setAttribute(name,attribute); | |
| 761 } | |
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762 |
| 865 | 763 /* ------------------------------------------------------------ */ |
| 764 /** | |
| 765 * @see org.eclipse.jetty.continuation.Continuation#undispatch() | |
| 766 */ | |
| 767 public void undispatch() | |
| 768 { | |
| 769 if (isSuspended()) | |
| 770 { | |
| 771 if (LOG.isDebugEnabled()) | |
| 772 throw new ContinuationThrowable(); | |
| 773 else | |
| 774 throw __exception; | |
| 775 } | |
| 776 throw new IllegalStateException("!suspended"); | |
| 777 } | |
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778 |
| 865 | 779 /* ------------------------------------------------------------ */ |
| 780 /* ------------------------------------------------------------ */ | |
| 781 public class AsyncTimeout extends Timeout.Task implements Runnable | |
| 782 { | |
| 783 @Override | |
| 784 public void expired() | |
| 785 { | |
| 786 AsyncContinuation.this.expired(); | |
| 787 } | |
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788 |
| 865 | 789 @Override |
| 790 public void run() | |
| 791 { | |
| 792 AsyncContinuation.this.expired(); | |
| 793 } | |
| 794 } | |
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795 |
| 865 | 796 /* ------------------------------------------------------------ */ |
| 797 /* ------------------------------------------------------------ */ | |
| 798 public class AsyncEventState extends AsyncEvent | |
| 799 { | |
| 800 private final ServletContext _suspendedContext; | |
| 801 private ServletContext _dispatchContext; | |
| 802 private String _pathInContext; | |
| 803 private Timeout.Task _timeout= new AsyncTimeout(); | |
| 804 | |
| 805 public AsyncEventState(ServletContext context, ServletRequest request, ServletResponse response) | |
| 806 { | |
| 807 super(AsyncContinuation.this, request,response); | |
| 808 _suspendedContext=context; | |
| 809 // Get the base request So we can remember the initial paths | |
| 810 Request r=_connection.getRequest(); | |
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811 |
| 865 | 812 // If we haven't been async dispatched before |
| 813 if (r.getAttribute(AsyncContext.ASYNC_REQUEST_URI)==null) | |
| 814 { | |
| 815 // We are setting these attributes during startAsync, when the spec implies that | |
| 816 // they are only available after a call to AsyncContext.dispatch(...); | |
| 817 | |
| 818 // have we been forwarded before? | |
| 819 String uri=(String)r.getAttribute(RequestDispatcher.FORWARD_REQUEST_URI); | |
| 820 if (uri!=null) | |
| 821 { | |
| 822 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,uri); | |
| 823 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getAttribute(RequestDispatcher.FORWARD_CONTEXT_PATH)); | |
| 824 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getAttribute(RequestDispatcher.FORWARD_SERVLET_PATH)); | |
| 825 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getAttribute(RequestDispatcher.FORWARD_PATH_INFO)); | |
| 826 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getAttribute(RequestDispatcher.FORWARD_QUERY_STRING)); | |
| 827 } | |
| 828 else | |
| 829 { | |
| 830 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,r.getRequestURI()); | |
| 831 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getContextPath()); | |
| 832 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getServletPath()); | |
| 833 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getPathInfo()); | |
| 834 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getQueryString()); | |
| 835 } | |
| 836 } | |
| 837 } | |
| 838 | |
| 839 public ServletContext getSuspendedContext() | |
| 840 { | |
| 841 return _suspendedContext; | |
| 842 } | |
| 843 | |
| 844 public ServletContext getDispatchContext() | |
| 845 { | |
| 846 return _dispatchContext; | |
| 847 } | |
| 848 | |
| 849 public ServletContext getServletContext() | |
| 850 { | |
| 851 return _dispatchContext==null?_suspendedContext:_dispatchContext; | |
| 852 } | |
| 853 | |
| 854 public void setPath(String path) | |
| 855 { | |
| 856 _pathInContext=path; | |
| 857 } | |
| 858 | |
| 859 /* ------------------------------------------------------------ */ | |
| 860 /** | |
| 861 * @return The path in the context | |
| 862 */ | |
| 863 public String getPath() | |
| 864 { | |
| 865 return _pathInContext; | |
| 866 } | |
| 867 } | |
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868 } |