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annotate src/org/eclipse/jetty/server/AsyncContinuation.java @ 918:7b62446899c6
remove unused states in AsyncContinuation
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Sun, 09 Oct 2016 03:37:53 -0600 |
| parents | 1fc8ee20cb18 |
| children | dd6b1f079634 |
| 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> _lastAsyncListeners; | |
| 80 private List<AsyncListener> _asyncListeners; | |
| 81 private List<ContinuationListener> _continuationListeners; | |
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82 |
| 865 | 83 /* ------------------------------------------------------------ */ |
| 84 private int _state; | |
| 85 private boolean _initial; | |
| 86 private boolean _resumed; | |
| 87 private boolean _expired; | |
| 88 private volatile boolean _responseWrapped; | |
| 89 private long _timeoutMs=DEFAULT_TIMEOUT; | |
| 90 private AsyncEventState _event; | |
| 91 private volatile long _expireAt; | |
| 92 private volatile boolean _continuation; | |
| 93 | |
| 94 /* ------------------------------------------------------------ */ | |
| 95 protected AsyncContinuation() | |
| 96 { | |
| 97 _state=__IDLE; | |
| 98 _initial=true; | |
| 99 } | |
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100 |
| 865 | 101 /* ------------------------------------------------------------ */ |
| 102 protected void setConnection(final AbstractHttpConnection connection) | |
| 103 { | |
| 104 synchronized(this) | |
| 105 { | |
| 106 _connection=connection; | |
| 107 } | |
| 108 } | |
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109 |
| 865 | 110 /* ------------------------------------------------------------ */ |
| 111 public void addListener(AsyncListener listener) | |
| 112 { | |
| 113 synchronized(this) | |
| 114 { | |
| 115 if (_asyncListeners==null) | |
| 116 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 117 _asyncListeners.add(listener); | |
| 118 } | |
| 119 } | |
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120 |
| 865 | 121 /* ------------------------------------------------------------ */ |
| 122 public void addListener(AsyncListener listener,ServletRequest request, ServletResponse response) | |
| 123 { | |
| 124 synchronized(this) | |
| 125 { | |
| 126 // TODO handle the request/response ??? | |
| 127 if (_asyncListeners==null) | |
| 128 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 129 _asyncListeners.add(listener); | |
| 130 } | |
| 131 } | |
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132 |
| 865 | 133 /* ------------------------------------------------------------ */ |
| 134 public void addContinuationListener(ContinuationListener listener) | |
| 135 { | |
| 136 synchronized(this) | |
| 137 { | |
| 138 if (_continuationListeners==null) | |
| 139 _continuationListeners=new ArrayList<ContinuationListener>(); | |
| 140 _continuationListeners.add(listener); | |
| 141 } | |
| 142 } | |
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143 |
| 865 | 144 /* ------------------------------------------------------------ */ |
| 145 public void setTimeout(long ms) | |
| 146 { | |
| 147 synchronized(this) | |
| 148 { | |
| 149 _timeoutMs=ms; | |
| 150 } | |
| 151 } | |
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152 |
| 865 | 153 /* ------------------------------------------------------------ */ |
| 154 public long getTimeout() | |
| 155 { | |
| 156 synchronized(this) | |
| 157 { | |
| 158 return _timeoutMs; | |
| 159 } | |
| 160 } | |
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161 |
| 865 | 162 /* ------------------------------------------------------------ */ |
| 163 public AsyncEventState getAsyncEventState() | |
| 164 { | |
| 165 synchronized(this) | |
| 166 { | |
| 167 return _event; | |
| 168 } | |
| 169 } | |
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170 |
| 865 | 171 /* ------------------------------------------------------------ */ |
| 172 /** | |
| 173 * @see org.eclipse.jetty.continuation.Continuation#keepWrappers() | |
| 174 */ | |
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175 |
| 865 | 176 /* ------------------------------------------------------------ */ |
| 177 /** | |
| 178 * @see org.eclipse.jetty.continuation.Continuation#isResponseWrapped() | |
| 179 */ | |
| 180 public boolean isResponseWrapped() | |
| 181 { | |
| 182 return _responseWrapped; | |
| 183 } | |
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184 |
| 865 | 185 /* ------------------------------------------------------------ */ |
| 186 /* (non-Javadoc) | |
| 187 * @see javax.servlet.ServletRequest#isInitial() | |
| 188 */ | |
| 189 public boolean isInitial() | |
| 190 { | |
| 191 synchronized(this) | |
| 192 { | |
| 193 return _initial; | |
| 194 } | |
| 195 } | |
| 196 | |
| 197 public boolean isContinuation() | |
| 198 { | |
| 199 return _continuation; | |
| 200 } | |
| 201 | |
| 202 /* ------------------------------------------------------------ */ | |
| 203 /* (non-Javadoc) | |
| 204 * @see javax.servlet.ServletRequest#isSuspended() | |
| 205 */ | |
| 206 public boolean isSuspended() | |
| 207 { | |
| 208 synchronized(this) | |
| 209 { | |
| 210 switch(_state) | |
| 211 { | |
| 212 default: | |
| 213 return false; | |
| 214 } | |
| 215 } | |
| 216 } | |
| 217 | |
| 218 /* ------------------------------------------------------------ */ | |
| 219 public boolean isSuspending() | |
| 220 { | |
| 221 synchronized(this) | |
| 222 { | |
| 223 switch(_state) | |
| 224 { | |
| 225 default: | |
| 226 return false; | |
| 227 } | |
| 228 } | |
| 229 } | |
| 230 | |
| 231 /* ------------------------------------------------------------ */ | |
| 232 public boolean isDispatchable() | |
| 233 { | |
| 234 synchronized(this) | |
| 235 { | |
| 236 switch(_state) | |
| 237 { | |
| 238 default: | |
| 239 return false; | |
| 240 } | |
| 241 } | |
| 242 } | |
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243 |
| 865 | 244 /* ------------------------------------------------------------ */ |
| 245 @Override | |
| 246 public String toString() | |
| 247 { | |
| 248 synchronized (this) | |
| 249 { | |
| 250 return super.toString()+"@"+getStatusString(); | |
| 251 } | |
| 252 } | |
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253 |
| 865 | 254 /* ------------------------------------------------------------ */ |
| 255 public String getStatusString() | |
| 256 { | |
| 257 synchronized (this) | |
| 258 { | |
| 259 return | |
| 260 ((_state==__IDLE)?"IDLE": | |
| 261 (_state==__DISPATCHED)?"DISPATCHED": | |
| 262 (_state==__UNCOMPLETED)?"UNCOMPLETED": | |
| 263 (_state==__COMPLETED)?"COMPLETE": | |
| 264 ("UNKNOWN?"+_state))+ | |
| 265 (_initial?",initial":"")+ | |
| 266 (_resumed?",resumed":"")+ | |
| 267 (_expired?",expired":""); | |
| 268 } | |
| 269 } | |
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270 |
| 865 | 271 /* ------------------------------------------------------------ */ |
| 272 /** | |
| 273 * @return false if the handling of the request should not proceed | |
| 274 */ | |
| 275 protected boolean handling() | |
| 276 { | |
| 277 synchronized (this) | |
| 278 { | |
| 279 _continuation=false; | |
| 280 | |
| 281 switch(_state) | |
| 282 { | |
| 283 case __IDLE: | |
| 284 _initial=true; | |
| 285 _state=__DISPATCHED; | |
| 286 if (_lastAsyncListeners!=null) | |
| 287 _lastAsyncListeners.clear(); | |
| 288 if (_asyncListeners!=null) | |
| 289 _asyncListeners.clear(); | |
| 290 else | |
| 291 { | |
| 292 _asyncListeners=_lastAsyncListeners; | |
| 293 _lastAsyncListeners=null; | |
| 294 } | |
| 295 return true; | |
| 296 | |
| 297 default: | |
| 298 throw new IllegalStateException(this.getStatusString()); | |
| 299 } | |
| 300 } | |
| 301 } | |
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302 |
| 865 | 303 /* ------------------------------------------------------------ */ |
| 304 /** | |
| 305 * Signal that the HttpConnection has finished handling the request. | |
| 306 * For blocking connectors, this call may block if the request has | |
| 307 * been suspended (startAsync called). | |
| 308 * @return true if handling is complete, false if the request should | |
| 309 * be handled again (eg because of a resume that happened before unhandle was called) | |
| 310 */ | |
| 311 protected boolean unhandle() | |
| 312 { | |
| 313 synchronized (this) | |
| 314 { | |
| 315 switch(_state) | |
| 316 { | |
| 317 case __DISPATCHED: | |
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318 _state = __UNCOMPLETED; |
| 865 | 319 return true; |
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320 |
| 865 | 321 case __IDLE: |
| 322 throw new IllegalStateException(this.getStatusString()); | |
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323 |
| 865 | 324 default: |
| 325 throw new IllegalStateException(this.getStatusString()); | |
| 326 } | |
| 327 } | |
| 328 } | |
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329 |
| 865 | 330 /* ------------------------------------------------------------ */ |
| 331 public void dispatch() | |
| 332 { | |
| 333 boolean dispatch=false; | |
| 334 synchronized (this) | |
| 335 { | |
| 336 switch(_state) | |
| 337 { | |
| 338 default: | |
| 339 throw new IllegalStateException(this.getStatusString()); | |
| 340 } | |
| 341 } | |
| 342 } | |
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343 |
| 865 | 344 /* ------------------------------------------------------------ */ |
| 345 protected void expired() | |
| 346 { | |
| 347 } | |
| 348 | |
| 349 /* ------------------------------------------------------------ */ | |
| 350 /* (non-Javadoc) | |
| 351 * @see javax.servlet.ServletRequest#complete() | |
| 352 */ | |
| 353 public void complete() | |
| 354 { | |
| 355 // just like resume, except don't set _resumed=true; | |
| 356 boolean dispatch=false; | |
| 357 synchronized (this) | |
| 358 { | |
| 359 switch(_state) | |
| 360 { | |
| 361 case __DISPATCHED: | |
| 362 throw new IllegalStateException(this.getStatusString()); | |
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363 |
| 865 | 364 default: |
| 365 throw new IllegalStateException(this.getStatusString()); | |
| 366 } | |
| 367 } | |
| 368 } | |
| 369 | |
| 370 /* ------------------------------------------------------------ */ | |
| 371 /* (non-Javadoc) | |
| 372 * @see javax.servlet.ServletRequest#complete() | |
| 373 */ | |
| 374 public void errorComplete() | |
| 375 { | |
| 376 // just like complete except can overrule a prior dispatch call; | |
| 377 synchronized (this) | |
| 378 { | |
| 379 switch(_state) | |
| 380 { | |
| 381 default: | |
| 382 throw new IllegalStateException(this.getStatusString()); | |
| 383 } | |
| 384 } | |
| 385 } | |
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386 |
| 865 | 387 /* ------------------------------------------------------------ */ |
| 388 @Override | |
| 389 public <T extends AsyncListener> T createListener(Class<T> clazz) throws ServletException | |
| 390 { | |
| 391 try | |
| 392 { | |
| 393 // TODO inject | |
| 394 return clazz.newInstance(); | |
| 395 } | |
| 396 catch(Exception e) | |
| 397 { | |
| 398 throw new ServletException(e); | |
| 399 } | |
| 400 } | |
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401 |
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402 |
| 865 | 403 /* ------------------------------------------------------------ */ |
| 404 /* (non-Javadoc) | |
| 405 * @see javax.servlet.ServletRequest#complete() | |
| 406 */ | |
| 407 protected void doComplete(Throwable ex) | |
| 408 { | |
| 409 final List<ContinuationListener> cListeners; | |
| 410 final List<AsyncListener> aListeners; | |
| 411 synchronized (this) | |
| 412 { | |
| 413 switch(_state) | |
| 414 { | |
| 415 case __UNCOMPLETED: | |
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416 _state = __COMPLETED; |
| 865 | 417 cListeners=_continuationListeners; |
| 418 aListeners=_asyncListeners; | |
| 419 break; | |
| 420 | |
| 421 default: | |
| 422 cListeners=null; | |
| 423 aListeners=null; | |
| 424 throw new IllegalStateException(this.getStatusString()); | |
| 425 } | |
| 426 } | |
| 427 | |
| 428 if (aListeners!=null) | |
| 429 { | |
| 430 for (AsyncListener listener : aListeners) | |
| 431 { | |
| 432 try | |
| 433 { | |
| 434 if (ex!=null) | |
| 435 { | |
| 436 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_EXCEPTION,ex); | |
| 437 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_MESSAGE,ex.getMessage()); | |
| 438 listener.onError(_event); | |
| 439 } | |
| 440 else | |
| 441 listener.onComplete(_event); | |
| 442 } | |
| 443 catch(Exception e) | |
| 444 { | |
| 445 LOG.warn("",e); | |
| 446 } | |
| 447 } | |
| 448 } | |
| 449 if (cListeners!=null) | |
| 450 { | |
| 451 for (ContinuationListener listener : cListeners) | |
| 452 { | |
| 453 try | |
| 454 { | |
| 455 listener.onComplete(this); | |
| 456 } | |
| 457 catch(Exception e) | |
| 458 { | |
| 459 LOG.warn("",e); | |
| 460 } | |
| 461 } | |
| 462 } | |
| 463 } | |
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464 |
| 865 | 465 /* ------------------------------------------------------------ */ |
| 466 protected void recycle() | |
| 467 { | |
| 468 synchronized (this) | |
| 469 { | |
| 470 switch(_state) | |
| 471 { | |
| 472 case __DISPATCHED: | |
| 473 throw new IllegalStateException(getStatusString()); | |
| 474 default: | |
| 475 _state=__IDLE; | |
| 476 } | |
| 477 _initial = true; | |
| 478 _resumed=false; | |
| 479 _expired=false; | |
| 480 _responseWrapped=false; | |
| 481 cancelTimeout(); | |
| 482 _timeoutMs=DEFAULT_TIMEOUT; | |
| 483 _continuationListeners=null; | |
| 484 } | |
| 485 } | |
| 486 | |
| 487 /* ------------------------------------------------------------ */ | |
| 488 public void cancel() | |
| 489 { | |
| 490 synchronized (this) | |
| 491 { | |
| 492 cancelTimeout(); | |
| 493 _continuationListeners=null; | |
| 494 } | |
| 495 } | |
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496 |
| 865 | 497 /* ------------------------------------------------------------ */ |
| 498 protected void scheduleDispatch() | |
| 499 { | |
| 500 EndPoint endp=_connection.getEndPoint(); | |
| 501 if (!endp.isBlocking()) | |
| 502 { | |
| 503 ((AsyncEndPoint)endp).asyncDispatch(); | |
| 504 } | |
| 505 } | |
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506 |
| 865 | 507 /* ------------------------------------------------------------ */ |
| 508 protected void scheduleTimeout() | |
| 509 { | |
| 510 EndPoint endp=_connection.getEndPoint(); | |
| 511 if (_timeoutMs>0) | |
| 512 { | |
| 513 if (endp.isBlocking()) | |
| 514 { | |
| 515 synchronized(this) | |
| 516 { | |
| 517 _expireAt = System.currentTimeMillis()+_timeoutMs; | |
| 518 long wait=_timeoutMs; | |
| 519 while (_expireAt>0 && wait>0 && _connection.getServer().isRunning()) | |
| 520 { | |
| 521 try | |
| 522 { | |
| 523 this.wait(wait); | |
| 524 } | |
| 525 catch (InterruptedException e) | |
| 526 { | |
| 527 LOG.trace("",e); | |
| 528 } | |
| 529 wait=_expireAt-System.currentTimeMillis(); | |
| 530 } | |
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531 |
| 865 | 532 if (_expireAt>0 && wait<=0 && _connection.getServer().isRunning()) |
| 533 { | |
| 534 expired(); | |
| 535 } | |
| 536 } | |
| 537 } | |
| 538 else | |
| 539 { | |
| 540 ((AsyncEndPoint)endp).scheduleTimeout(_event._timeout,_timeoutMs); | |
| 541 } | |
| 542 } | |
| 543 } | |
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544 |
| 865 | 545 /* ------------------------------------------------------------ */ |
| 546 protected void cancelTimeout() | |
| 547 { | |
| 548 EndPoint endp=_connection.getEndPoint(); | |
| 549 if (endp.isBlocking()) | |
| 550 { | |
| 551 synchronized(this) | |
| 552 { | |
| 553 _expireAt=0; | |
| 554 this.notifyAll(); | |
| 555 } | |
| 556 } | |
| 557 else | |
| 558 { | |
| 559 final AsyncEventState event=_event; | |
| 560 if (event!=null) | |
| 561 { | |
| 562 ((AsyncEndPoint)endp).cancelTimeout(event._timeout); | |
| 563 } | |
| 564 } | |
| 565 } | |
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566 |
| 865 | 567 /* ------------------------------------------------------------ */ |
| 568 public boolean isCompleting() | |
| 569 { | |
| 570 synchronized (this) | |
| 571 { | |
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572 return false; |
| 865 | 573 } |
| 574 } | |
| 575 | |
| 576 /* ------------------------------------------------------------ */ | |
| 577 boolean isUncompleted() | |
| 578 { | |
| 579 synchronized (this) | |
| 580 { | |
| 581 return _state==__UNCOMPLETED; | |
| 582 } | |
| 583 } | |
| 584 | |
| 585 /* ------------------------------------------------------------ */ | |
| 586 public boolean isComplete() | |
| 587 { | |
| 588 synchronized (this) | |
| 589 { | |
| 590 return _state==__COMPLETED; | |
| 591 } | |
| 592 } | |
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593 |
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594 |
| 865 | 595 /* ------------------------------------------------------------ */ |
| 596 public boolean isAsyncStarted() | |
| 597 { | |
| 598 synchronized (this) | |
| 599 { | |
| 600 switch(_state) | |
| 601 { | |
| 602 default: | |
| 603 return false; | |
| 604 } | |
| 605 } | |
| 606 } | |
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607 |
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608 |
| 865 | 609 /* ------------------------------------------------------------ */ |
| 610 public boolean isAsync() | |
| 611 { | |
| 612 synchronized (this) | |
| 613 { | |
| 614 switch(_state) | |
| 615 { | |
| 616 case __IDLE: | |
| 617 case __DISPATCHED: | |
| 618 case __UNCOMPLETED: | |
| 619 case __COMPLETED: | |
| 620 return false; | |
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621 |
| 865 | 622 default: |
| 623 return true; | |
| 624 } | |
| 625 } | |
| 626 } | |
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627 |
| 865 | 628 /* ------------------------------------------------------------ */ |
| 629 public void dispatch(ServletContext context, String path) | |
| 630 { | |
| 631 _event._dispatchContext=context; | |
| 632 _event.setPath(path); | |
| 633 dispatch(); | |
| 634 } | |
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635 |
| 865 | 636 /* ------------------------------------------------------------ */ |
| 637 public void dispatch(String path) | |
| 638 { | |
| 639 _event.setPath(path); | |
| 640 dispatch(); | |
| 641 } | |
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642 |
| 865 | 643 /* ------------------------------------------------------------ */ |
| 644 public Request getBaseRequest() | |
| 645 { | |
| 646 return _connection.getRequest(); | |
| 647 } | |
| 648 | |
| 649 /* ------------------------------------------------------------ */ | |
| 650 public ServletRequest getRequest() | |
| 651 { | |
| 652 if (_event!=null) | |
| 653 return _event.getSuppliedRequest(); | |
| 654 return _connection.getRequest(); | |
| 655 } | |
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656 |
| 865 | 657 /* ------------------------------------------------------------ */ |
| 658 public ServletResponse getResponse() | |
| 659 { | |
| 660 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 661 return _event.getSuppliedResponse(); | |
| 662 return _connection.getResponse(); | |
| 663 } | |
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664 |
| 865 | 665 /* ------------------------------------------------------------ */ |
| 666 public void start(final Runnable run) | |
| 667 { | |
| 668 final AsyncEventState event=_event; | |
| 669 if (event!=null) | |
| 670 { | |
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671 _connection.getServer().threadPool.execute(new Runnable() |
| 865 | 672 { |
| 673 public void run() | |
| 674 { | |
| 675 ((Context)event.getServletContext()).getContextHandler().handle(run); | |
| 676 } | |
| 677 }); | |
| 678 } | |
| 679 } | |
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680 |
| 865 | 681 /* ------------------------------------------------------------ */ |
| 682 public boolean hasOriginalRequestAndResponse() | |
| 683 { | |
| 684 synchronized (this) | |
| 685 { | |
| 686 return (_event!=null && _event.getSuppliedRequest()==_connection._request && _event.getSuppliedResponse()==_connection._response); | |
| 687 } | |
| 688 } | |
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689 |
| 865 | 690 /* ------------------------------------------------------------ */ |
| 691 public ContextHandler getContextHandler() | |
| 692 { | |
| 693 final AsyncEventState event=_event; | |
| 694 if (event!=null) | |
| 695 return ((Context)event.getServletContext()).getContextHandler(); | |
| 696 return null; | |
| 697 } | |
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698 |
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699 |
| 865 | 700 /* ------------------------------------------------------------ */ |
| 701 /** | |
| 702 * @see Continuation#isResumed() | |
| 703 */ | |
| 704 public boolean isResumed() | |
| 705 { | |
| 706 synchronized (this) | |
| 707 { | |
| 708 return _resumed; | |
| 709 } | |
| 710 } | |
| 711 /* ------------------------------------------------------------ */ | |
| 712 /** | |
| 713 * @see Continuation#isExpired() | |
| 714 */ | |
| 715 public boolean isExpired() | |
| 716 { | |
| 717 synchronized (this) | |
| 718 { | |
| 719 return _expired; | |
| 720 } | |
| 721 } | |
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722 |
| 865 | 723 /* ------------------------------------------------------------ */ |
| 724 /** | |
| 725 * @see Continuation#resume() | |
| 726 */ | |
| 727 public void resume() | |
| 728 { | |
| 729 dispatch(); | |
| 730 } | |
| 731 | |
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732 |
| 865 | 733 /* ------------------------------------------------------------ */ |
| 734 /** | |
| 735 * @see org.eclipse.jetty.continuation.Continuation#getServletResponse() | |
| 736 */ | |
| 737 public ServletResponse getServletResponse() | |
| 738 { | |
| 739 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 740 return _event.getSuppliedResponse(); | |
| 741 return _connection.getResponse(); | |
| 742 } | |
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743 |
| 865 | 744 /* ------------------------------------------------------------ */ |
| 745 /** | |
| 746 * @see org.eclipse.jetty.continuation.Continuation#getAttribute(java.lang.String) | |
| 747 */ | |
| 748 public Object getAttribute(String name) | |
| 749 { | |
| 750 return _connection.getRequest().getAttribute(name); | |
| 751 } | |
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752 |
| 865 | 753 /* ------------------------------------------------------------ */ |
| 754 /** | |
| 755 * @see org.eclipse.jetty.continuation.Continuation#removeAttribute(java.lang.String) | |
| 756 */ | |
| 757 public void removeAttribute(String name) | |
| 758 { | |
| 759 _connection.getRequest().removeAttribute(name); | |
| 760 } | |
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761 |
| 865 | 762 /* ------------------------------------------------------------ */ |
| 763 /** | |
| 764 * @see org.eclipse.jetty.continuation.Continuation#setAttribute(java.lang.String, java.lang.Object) | |
| 765 */ | |
| 766 public void setAttribute(String name, Object attribute) | |
| 767 { | |
| 768 _connection.getRequest().setAttribute(name,attribute); | |
| 769 } | |
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770 |
| 865 | 771 /* ------------------------------------------------------------ */ |
| 772 /** | |
| 773 * @see org.eclipse.jetty.continuation.Continuation#undispatch() | |
| 774 */ | |
| 775 public void undispatch() | |
| 776 { | |
| 777 if (isSuspended()) | |
| 778 { | |
| 779 if (LOG.isDebugEnabled()) | |
| 780 throw new ContinuationThrowable(); | |
| 781 else | |
| 782 throw __exception; | |
| 783 } | |
| 784 throw new IllegalStateException("!suspended"); | |
| 785 } | |
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786 |
| 865 | 787 /* ------------------------------------------------------------ */ |
| 788 /* ------------------------------------------------------------ */ | |
| 789 public class AsyncTimeout extends Timeout.Task implements Runnable | |
| 790 { | |
| 791 @Override | |
| 792 public void expired() | |
| 793 { | |
| 794 AsyncContinuation.this.expired(); | |
| 795 } | |
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796 |
| 865 | 797 @Override |
| 798 public void run() | |
| 799 { | |
| 800 AsyncContinuation.this.expired(); | |
| 801 } | |
| 802 } | |
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803 |
| 865 | 804 /* ------------------------------------------------------------ */ |
| 805 /* ------------------------------------------------------------ */ | |
| 806 public class AsyncEventState extends AsyncEvent | |
| 807 { | |
| 808 private final ServletContext _suspendedContext; | |
| 809 private ServletContext _dispatchContext; | |
| 810 private String _pathInContext; | |
| 811 private Timeout.Task _timeout= new AsyncTimeout(); | |
| 812 | |
| 813 public AsyncEventState(ServletContext context, ServletRequest request, ServletResponse response) | |
| 814 { | |
| 815 super(AsyncContinuation.this, request,response); | |
| 816 _suspendedContext=context; | |
| 817 // Get the base request So we can remember the initial paths | |
| 818 Request r=_connection.getRequest(); | |
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819 |
| 865 | 820 // If we haven't been async dispatched before |
| 821 if (r.getAttribute(AsyncContext.ASYNC_REQUEST_URI)==null) | |
| 822 { | |
| 823 // We are setting these attributes during startAsync, when the spec implies that | |
| 824 // they are only available after a call to AsyncContext.dispatch(...); | |
| 825 | |
| 826 // have we been forwarded before? | |
| 827 String uri=(String)r.getAttribute(RequestDispatcher.FORWARD_REQUEST_URI); | |
| 828 if (uri!=null) | |
| 829 { | |
| 830 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,uri); | |
| 831 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getAttribute(RequestDispatcher.FORWARD_CONTEXT_PATH)); | |
| 832 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getAttribute(RequestDispatcher.FORWARD_SERVLET_PATH)); | |
| 833 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getAttribute(RequestDispatcher.FORWARD_PATH_INFO)); | |
| 834 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getAttribute(RequestDispatcher.FORWARD_QUERY_STRING)); | |
| 835 } | |
| 836 else | |
| 837 { | |
| 838 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,r.getRequestURI()); | |
| 839 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getContextPath()); | |
| 840 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getServletPath()); | |
| 841 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getPathInfo()); | |
| 842 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getQueryString()); | |
| 843 } | |
| 844 } | |
| 845 } | |
| 846 | |
| 847 public ServletContext getSuspendedContext() | |
| 848 { | |
| 849 return _suspendedContext; | |
| 850 } | |
| 851 | |
| 852 public ServletContext getDispatchContext() | |
| 853 { | |
| 854 return _dispatchContext; | |
| 855 } | |
| 856 | |
| 857 public ServletContext getServletContext() | |
| 858 { | |
| 859 return _dispatchContext==null?_suspendedContext:_dispatchContext; | |
| 860 } | |
| 861 | |
| 862 public void setPath(String path) | |
| 863 { | |
| 864 _pathInContext=path; | |
| 865 } | |
| 866 | |
| 867 /* ------------------------------------------------------------ */ | |
| 868 /** | |
| 869 * @return The path in the context | |
| 870 */ | |
| 871 public String getPath() | |
| 872 { | |
| 873 return _pathInContext; | |
| 874 } | |
| 875 } | |
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876 } |