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annotate src/org/eclipse/jetty/server/AsyncContinuation.java @ 923:52d8b5c29d8e
remove resume()
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Sun, 09 Oct 2016 18:17:01 -0600 |
| parents | 03f39c8abd6b |
| children | 5c9cb5d00512 |
| 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 volatile boolean _responseWrapped; | |
| 86 private long _timeoutMs=DEFAULT_TIMEOUT; | |
| 87 private AsyncEventState _event; | |
| 88 private volatile long _expireAt; | |
| 89 private volatile boolean _continuation; | |
| 90 | |
| 91 /* ------------------------------------------------------------ */ | |
| 92 protected AsyncContinuation() | |
| 93 { | |
| 94 _state=__IDLE; | |
| 95 _initial=true; | |
| 96 } | |
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97 |
| 865 | 98 /* ------------------------------------------------------------ */ |
| 99 protected void setConnection(final AbstractHttpConnection connection) | |
| 100 { | |
| 101 synchronized(this) | |
| 102 { | |
| 103 _connection=connection; | |
| 104 } | |
| 105 } | |
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106 |
| 865 | 107 /* ------------------------------------------------------------ */ |
| 108 public void addListener(AsyncListener listener) | |
| 109 { | |
| 110 synchronized(this) | |
| 111 { | |
| 112 if (_asyncListeners==null) | |
| 113 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 114 _asyncListeners.add(listener); | |
| 115 } | |
| 116 } | |
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117 |
| 865 | 118 /* ------------------------------------------------------------ */ |
| 119 public void addListener(AsyncListener listener,ServletRequest request, ServletResponse response) | |
| 120 { | |
| 121 synchronized(this) | |
| 122 { | |
| 123 // TODO handle the request/response ??? | |
| 124 if (_asyncListeners==null) | |
| 125 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 126 _asyncListeners.add(listener); | |
| 127 } | |
| 128 } | |
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129 |
| 865 | 130 /* ------------------------------------------------------------ */ |
| 131 public void addContinuationListener(ContinuationListener listener) | |
| 132 { | |
| 133 synchronized(this) | |
| 134 { | |
| 135 if (_continuationListeners==null) | |
| 136 _continuationListeners=new ArrayList<ContinuationListener>(); | |
| 137 _continuationListeners.add(listener); | |
| 138 } | |
| 139 } | |
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140 |
| 865 | 141 /* ------------------------------------------------------------ */ |
| 142 public void setTimeout(long ms) | |
| 143 { | |
| 144 synchronized(this) | |
| 145 { | |
| 146 _timeoutMs=ms; | |
| 147 } | |
| 148 } | |
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149 |
| 865 | 150 /* ------------------------------------------------------------ */ |
| 151 public long getTimeout() | |
| 152 { | |
| 153 synchronized(this) | |
| 154 { | |
| 155 return _timeoutMs; | |
| 156 } | |
| 157 } | |
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158 |
| 865 | 159 /* ------------------------------------------------------------ */ |
| 160 public AsyncEventState getAsyncEventState() | |
| 161 { | |
| 162 synchronized(this) | |
| 163 { | |
| 164 return _event; | |
| 165 } | |
| 166 } | |
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167 |
| 865 | 168 /* ------------------------------------------------------------ */ |
| 169 /** | |
| 170 * @see org.eclipse.jetty.continuation.Continuation#keepWrappers() | |
| 171 */ | |
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172 |
| 865 | 173 /* ------------------------------------------------------------ */ |
| 174 /** | |
| 175 * @see org.eclipse.jetty.continuation.Continuation#isResponseWrapped() | |
| 176 */ | |
| 177 public boolean isResponseWrapped() | |
| 178 { | |
| 179 return _responseWrapped; | |
| 180 } | |
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181 |
| 865 | 182 /* ------------------------------------------------------------ */ |
| 183 /* (non-Javadoc) | |
| 184 * @see javax.servlet.ServletRequest#isInitial() | |
| 185 */ | |
| 186 public boolean isInitial() | |
| 187 { | |
| 188 synchronized(this) | |
| 189 { | |
| 190 return _initial; | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 public boolean isContinuation() | |
| 195 { | |
| 196 return _continuation; | |
| 197 } | |
| 198 | |
| 199 /* ------------------------------------------------------------ */ | |
| 200 /* (non-Javadoc) | |
| 201 * @see javax.servlet.ServletRequest#isSuspended() | |
| 202 */ | |
| 203 public boolean isSuspended() | |
| 204 { | |
| 205 synchronized(this) | |
| 206 { | |
| 207 switch(_state) | |
| 208 { | |
| 209 default: | |
| 210 return false; | |
| 211 } | |
| 212 } | |
| 213 } | |
| 214 | |
| 215 /* ------------------------------------------------------------ */ | |
| 216 public boolean isSuspending() | |
| 217 { | |
| 218 synchronized(this) | |
| 219 { | |
| 220 switch(_state) | |
| 221 { | |
| 222 default: | |
| 223 return false; | |
| 224 } | |
| 225 } | |
| 226 } | |
| 227 | |
| 228 /* ------------------------------------------------------------ */ | |
| 229 public boolean isDispatchable() | |
| 230 { | |
| 231 synchronized(this) | |
| 232 { | |
| 233 switch(_state) | |
| 234 { | |
| 235 default: | |
| 236 return false; | |
| 237 } | |
| 238 } | |
| 239 } | |
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240 |
| 865 | 241 /* ------------------------------------------------------------ */ |
| 242 @Override | |
| 243 public String toString() | |
| 244 { | |
| 245 synchronized (this) | |
| 246 { | |
| 247 return super.toString()+"@"+getStatusString(); | |
| 248 } | |
| 249 } | |
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250 |
| 865 | 251 /* ------------------------------------------------------------ */ |
| 252 public String getStatusString() | |
| 253 { | |
| 254 synchronized (this) | |
| 255 { | |
| 256 return | |
| 257 ((_state==__IDLE)?"IDLE": | |
| 258 (_state==__DISPATCHED)?"DISPATCHED": | |
| 259 (_state==__UNCOMPLETED)?"UNCOMPLETED": | |
| 260 (_state==__COMPLETED)?"COMPLETE": | |
| 261 ("UNKNOWN?"+_state))+ | |
| 922 | 262 (_initial?",initial":""); |
| 865 | 263 } |
| 264 } | |
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265 |
| 865 | 266 /* ------------------------------------------------------------ */ |
| 267 /** | |
| 268 * @return false if the handling of the request should not proceed | |
| 269 */ | |
| 270 protected boolean handling() | |
| 271 { | |
| 272 synchronized (this) | |
| 273 { | |
| 274 _continuation=false; | |
| 275 | |
| 276 switch(_state) | |
| 277 { | |
| 278 case __IDLE: | |
| 279 _initial=true; | |
| 280 _state=__DISPATCHED; | |
| 281 if (_asyncListeners!=null) | |
| 282 _asyncListeners.clear(); | |
| 283 return true; | |
| 284 | |
| 285 default: | |
| 286 throw new IllegalStateException(this.getStatusString()); | |
| 287 } | |
| 288 } | |
| 289 } | |
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290 |
| 865 | 291 /* ------------------------------------------------------------ */ |
| 292 /** | |
| 293 * Signal that the HttpConnection has finished handling the request. | |
| 294 * For blocking connectors, this call may block if the request has | |
| 295 * been suspended (startAsync called). | |
| 296 * @return true if handling is complete, false if the request should | |
| 297 * be handled again (eg because of a resume that happened before unhandle was called) | |
| 298 */ | |
| 299 protected boolean unhandle() | |
| 300 { | |
| 301 synchronized (this) | |
| 302 { | |
| 303 switch(_state) | |
| 304 { | |
| 305 case __DISPATCHED: | |
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306 _state = __UNCOMPLETED; |
| 865 | 307 return true; |
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308 |
| 865 | 309 case __IDLE: |
| 310 throw new IllegalStateException(this.getStatusString()); | |
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311 |
| 865 | 312 default: |
| 313 throw new IllegalStateException(this.getStatusString()); | |
| 314 } | |
| 315 } | |
| 316 } | |
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317 |
| 865 | 318 /* ------------------------------------------------------------ */ |
| 319 public void dispatch() | |
| 320 { | |
| 321 boolean dispatch=false; | |
| 322 synchronized (this) | |
| 323 { | |
| 324 switch(_state) | |
| 325 { | |
| 326 default: | |
| 327 throw new IllegalStateException(this.getStatusString()); | |
| 328 } | |
| 329 } | |
| 330 } | |
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331 |
| 865 | 332 /* ------------------------------------------------------------ */ |
| 333 protected void expired() | |
| 334 { | |
| 335 } | |
| 336 | |
| 337 /* ------------------------------------------------------------ */ | |
| 338 /* (non-Javadoc) | |
| 339 * @see javax.servlet.ServletRequest#complete() | |
| 340 */ | |
| 341 public void complete() | |
| 342 { | |
| 343 // just like resume, except don't set _resumed=true; | |
| 344 boolean dispatch=false; | |
| 345 synchronized (this) | |
| 346 { | |
| 347 switch(_state) | |
| 348 { | |
| 349 case __DISPATCHED: | |
| 350 throw new IllegalStateException(this.getStatusString()); | |
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351 |
| 865 | 352 default: |
| 353 throw new IllegalStateException(this.getStatusString()); | |
| 354 } | |
| 355 } | |
| 356 } | |
| 357 | |
| 358 /* ------------------------------------------------------------ */ | |
| 359 /* (non-Javadoc) | |
| 360 * @see javax.servlet.ServletRequest#complete() | |
| 361 */ | |
| 362 public void errorComplete() | |
| 363 { | |
| 364 // just like complete except can overrule a prior dispatch call; | |
| 365 synchronized (this) | |
| 366 { | |
| 367 switch(_state) | |
| 368 { | |
| 369 default: | |
| 370 throw new IllegalStateException(this.getStatusString()); | |
| 371 } | |
| 372 } | |
| 373 } | |
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374 |
| 865 | 375 /* ------------------------------------------------------------ */ |
| 376 @Override | |
| 377 public <T extends AsyncListener> T createListener(Class<T> clazz) throws ServletException | |
| 378 { | |
| 379 try | |
| 380 { | |
| 381 // TODO inject | |
| 382 return clazz.newInstance(); | |
| 383 } | |
| 384 catch(Exception e) | |
| 385 { | |
| 386 throw new ServletException(e); | |
| 387 } | |
| 388 } | |
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389 |
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390 |
| 865 | 391 /* ------------------------------------------------------------ */ |
| 392 /* (non-Javadoc) | |
| 393 * @see javax.servlet.ServletRequest#complete() | |
| 394 */ | |
| 395 protected void doComplete(Throwable ex) | |
| 396 { | |
| 397 final List<ContinuationListener> cListeners; | |
| 398 final List<AsyncListener> aListeners; | |
| 399 synchronized (this) | |
| 400 { | |
| 401 switch(_state) | |
| 402 { | |
| 403 case __UNCOMPLETED: | |
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404 _state = __COMPLETED; |
| 865 | 405 cListeners=_continuationListeners; |
| 406 aListeners=_asyncListeners; | |
| 407 break; | |
| 408 | |
| 409 default: | |
| 410 cListeners=null; | |
| 411 aListeners=null; | |
| 412 throw new IllegalStateException(this.getStatusString()); | |
| 413 } | |
| 414 } | |
| 415 | |
| 416 if (aListeners!=null) | |
| 417 { | |
| 418 for (AsyncListener listener : aListeners) | |
| 419 { | |
| 420 try | |
| 421 { | |
| 422 if (ex!=null) | |
| 423 { | |
| 424 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_EXCEPTION,ex); | |
| 425 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_MESSAGE,ex.getMessage()); | |
| 426 listener.onError(_event); | |
| 427 } | |
| 428 else | |
| 429 listener.onComplete(_event); | |
| 430 } | |
| 431 catch(Exception e) | |
| 432 { | |
| 433 LOG.warn("",e); | |
| 434 } | |
| 435 } | |
| 436 } | |
| 437 if (cListeners!=null) | |
| 438 { | |
| 439 for (ContinuationListener listener : cListeners) | |
| 440 { | |
| 441 try | |
| 442 { | |
| 443 listener.onComplete(this); | |
| 444 } | |
| 445 catch(Exception e) | |
| 446 { | |
| 447 LOG.warn("",e); | |
| 448 } | |
| 449 } | |
| 450 } | |
| 451 } | |
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452 |
| 865 | 453 /* ------------------------------------------------------------ */ |
| 454 protected void recycle() | |
| 455 { | |
| 456 synchronized (this) | |
| 457 { | |
| 458 switch(_state) | |
| 459 { | |
| 460 case __DISPATCHED: | |
| 461 throw new IllegalStateException(getStatusString()); | |
| 462 default: | |
| 463 _state=__IDLE; | |
| 464 } | |
| 465 _initial = true; | |
| 466 _responseWrapped=false; | |
| 467 cancelTimeout(); | |
| 468 _timeoutMs=DEFAULT_TIMEOUT; | |
| 469 _continuationListeners=null; | |
| 470 } | |
| 471 } | |
| 472 | |
| 473 /* ------------------------------------------------------------ */ | |
| 474 public void cancel() | |
| 475 { | |
| 476 synchronized (this) | |
| 477 { | |
| 478 cancelTimeout(); | |
| 479 _continuationListeners=null; | |
| 480 } | |
| 481 } | |
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482 |
| 865 | 483 /* ------------------------------------------------------------ */ |
| 484 protected void scheduleDispatch() | |
| 485 { | |
| 486 EndPoint endp=_connection.getEndPoint(); | |
| 487 if (!endp.isBlocking()) | |
| 488 { | |
| 489 ((AsyncEndPoint)endp).asyncDispatch(); | |
| 490 } | |
| 491 } | |
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492 |
| 865 | 493 /* ------------------------------------------------------------ */ |
| 494 protected void scheduleTimeout() | |
| 495 { | |
| 496 EndPoint endp=_connection.getEndPoint(); | |
| 497 if (_timeoutMs>0) | |
| 498 { | |
| 499 if (endp.isBlocking()) | |
| 500 { | |
| 501 synchronized(this) | |
| 502 { | |
| 503 _expireAt = System.currentTimeMillis()+_timeoutMs; | |
| 504 long wait=_timeoutMs; | |
| 505 while (_expireAt>0 && wait>0 && _connection.getServer().isRunning()) | |
| 506 { | |
| 507 try | |
| 508 { | |
| 509 this.wait(wait); | |
| 510 } | |
| 511 catch (InterruptedException e) | |
| 512 { | |
| 513 LOG.trace("",e); | |
| 514 } | |
| 515 wait=_expireAt-System.currentTimeMillis(); | |
| 516 } | |
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517 |
| 865 | 518 if (_expireAt>0 && wait<=0 && _connection.getServer().isRunning()) |
| 519 { | |
| 520 expired(); | |
| 521 } | |
| 522 } | |
| 523 } | |
| 524 else | |
| 525 { | |
| 526 ((AsyncEndPoint)endp).scheduleTimeout(_event._timeout,_timeoutMs); | |
| 527 } | |
| 528 } | |
| 529 } | |
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530 |
| 865 | 531 /* ------------------------------------------------------------ */ |
| 532 protected void cancelTimeout() | |
| 533 { | |
| 534 EndPoint endp=_connection.getEndPoint(); | |
| 535 if (endp.isBlocking()) | |
| 536 { | |
| 537 synchronized(this) | |
| 538 { | |
| 539 _expireAt=0; | |
| 540 this.notifyAll(); | |
| 541 } | |
| 542 } | |
| 543 else | |
| 544 { | |
| 545 final AsyncEventState event=_event; | |
| 546 if (event!=null) | |
| 547 { | |
| 548 ((AsyncEndPoint)endp).cancelTimeout(event._timeout); | |
| 549 } | |
| 550 } | |
| 551 } | |
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552 |
| 865 | 553 /* ------------------------------------------------------------ */ |
| 554 boolean isUncompleted() | |
| 555 { | |
| 556 synchronized (this) | |
| 557 { | |
| 558 return _state==__UNCOMPLETED; | |
| 559 } | |
| 560 } | |
| 561 | |
| 562 /* ------------------------------------------------------------ */ | |
| 563 public boolean isComplete() | |
| 564 { | |
| 565 synchronized (this) | |
| 566 { | |
| 567 return _state==__COMPLETED; | |
| 568 } | |
| 569 } | |
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570 |
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571 |
| 865 | 572 /* ------------------------------------------------------------ */ |
| 573 public boolean isAsync() | |
| 574 { | |
| 575 synchronized (this) | |
| 576 { | |
| 577 switch(_state) | |
| 578 { | |
| 579 case __IDLE: | |
| 580 case __DISPATCHED: | |
| 581 case __UNCOMPLETED: | |
| 582 case __COMPLETED: | |
| 583 return false; | |
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584 |
| 865 | 585 default: |
| 586 return true; | |
| 587 } | |
| 588 } | |
| 589 } | |
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590 |
| 865 | 591 /* ------------------------------------------------------------ */ |
| 592 public void dispatch(ServletContext context, String path) | |
| 593 { | |
| 594 _event._dispatchContext=context; | |
| 595 _event.setPath(path); | |
| 596 dispatch(); | |
| 597 } | |
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598 |
| 865 | 599 /* ------------------------------------------------------------ */ |
| 600 public void dispatch(String path) | |
| 601 { | |
| 602 _event.setPath(path); | |
| 603 dispatch(); | |
| 604 } | |
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605 |
| 865 | 606 /* ------------------------------------------------------------ */ |
| 607 public Request getBaseRequest() | |
| 608 { | |
| 609 return _connection.getRequest(); | |
| 610 } | |
| 611 | |
| 612 /* ------------------------------------------------------------ */ | |
| 613 public ServletRequest getRequest() | |
| 614 { | |
| 615 if (_event!=null) | |
| 616 return _event.getSuppliedRequest(); | |
| 617 return _connection.getRequest(); | |
| 618 } | |
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619 |
| 865 | 620 /* ------------------------------------------------------------ */ |
| 621 public ServletResponse getResponse() | |
| 622 { | |
| 623 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 624 return _event.getSuppliedResponse(); | |
| 625 return _connection.getResponse(); | |
| 626 } | |
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627 |
| 865 | 628 /* ------------------------------------------------------------ */ |
| 629 public void start(final Runnable run) | |
| 630 { | |
| 631 final AsyncEventState event=_event; | |
| 632 if (event!=null) | |
| 633 { | |
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634 _connection.getServer().threadPool.execute(new Runnable() |
| 865 | 635 { |
| 636 public void run() | |
| 637 { | |
| 638 ((Context)event.getServletContext()).getContextHandler().handle(run); | |
| 639 } | |
| 640 }); | |
| 641 } | |
| 642 } | |
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643 |
| 865 | 644 /* ------------------------------------------------------------ */ |
| 645 public boolean hasOriginalRequestAndResponse() | |
| 646 { | |
| 647 synchronized (this) | |
| 648 { | |
| 649 return (_event!=null && _event.getSuppliedRequest()==_connection._request && _event.getSuppliedResponse()==_connection._response); | |
| 650 } | |
| 651 } | |
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652 |
| 865 | 653 /* ------------------------------------------------------------ */ |
| 654 public ContextHandler getContextHandler() | |
| 655 { | |
| 656 final AsyncEventState event=_event; | |
| 657 if (event!=null) | |
| 658 return ((Context)event.getServletContext()).getContextHandler(); | |
| 659 return null; | |
| 660 } | |
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661 |
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662 |
| 865 | 663 /* ------------------------------------------------------------ */ |
| 664 /** | |
| 665 * @see org.eclipse.jetty.continuation.Continuation#getServletResponse() | |
| 666 */ | |
| 667 public ServletResponse getServletResponse() | |
| 668 { | |
| 669 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 670 return _event.getSuppliedResponse(); | |
| 671 return _connection.getResponse(); | |
| 672 } | |
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673 |
| 865 | 674 /* ------------------------------------------------------------ */ |
| 675 /** | |
| 676 * @see org.eclipse.jetty.continuation.Continuation#getAttribute(java.lang.String) | |
| 677 */ | |
| 678 public Object getAttribute(String name) | |
| 679 { | |
| 680 return _connection.getRequest().getAttribute(name); | |
| 681 } | |
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682 |
| 865 | 683 /* ------------------------------------------------------------ */ |
| 684 /** | |
| 685 * @see org.eclipse.jetty.continuation.Continuation#removeAttribute(java.lang.String) | |
| 686 */ | |
| 687 public void removeAttribute(String name) | |
| 688 { | |
| 689 _connection.getRequest().removeAttribute(name); | |
| 690 } | |
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691 |
| 865 | 692 /* ------------------------------------------------------------ */ |
| 693 /** | |
| 694 * @see org.eclipse.jetty.continuation.Continuation#setAttribute(java.lang.String, java.lang.Object) | |
| 695 */ | |
| 696 public void setAttribute(String name, Object attribute) | |
| 697 { | |
| 698 _connection.getRequest().setAttribute(name,attribute); | |
| 699 } | |
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700 |
| 865 | 701 /* ------------------------------------------------------------ */ |
| 702 /** | |
| 703 * @see org.eclipse.jetty.continuation.Continuation#undispatch() | |
| 704 */ | |
| 705 public void undispatch() | |
| 706 { | |
| 707 if (isSuspended()) | |
| 708 { | |
| 709 if (LOG.isDebugEnabled()) | |
| 710 throw new ContinuationThrowable(); | |
| 711 else | |
| 712 throw __exception; | |
| 713 } | |
| 714 throw new IllegalStateException("!suspended"); | |
| 715 } | |
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716 |
| 865 | 717 /* ------------------------------------------------------------ */ |
| 718 /* ------------------------------------------------------------ */ | |
| 719 public class AsyncTimeout extends Timeout.Task implements Runnable | |
| 720 { | |
| 721 @Override | |
| 722 public void expired() | |
| 723 { | |
| 724 AsyncContinuation.this.expired(); | |
| 725 } | |
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726 |
| 865 | 727 @Override |
| 728 public void run() | |
| 729 { | |
| 730 AsyncContinuation.this.expired(); | |
| 731 } | |
| 732 } | |
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733 |
| 865 | 734 /* ------------------------------------------------------------ */ |
| 735 /* ------------------------------------------------------------ */ | |
| 736 public class AsyncEventState extends AsyncEvent | |
| 737 { | |
| 738 private final ServletContext _suspendedContext; | |
| 739 private ServletContext _dispatchContext; | |
| 740 private String _pathInContext; | |
| 741 private Timeout.Task _timeout= new AsyncTimeout(); | |
| 742 | |
| 743 public AsyncEventState(ServletContext context, ServletRequest request, ServletResponse response) | |
| 744 { | |
| 745 super(AsyncContinuation.this, request,response); | |
| 746 _suspendedContext=context; | |
| 747 // Get the base request So we can remember the initial paths | |
| 748 Request r=_connection.getRequest(); | |
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749 |
| 865 | 750 // If we haven't been async dispatched before |
| 751 if (r.getAttribute(AsyncContext.ASYNC_REQUEST_URI)==null) | |
| 752 { | |
| 753 // We are setting these attributes during startAsync, when the spec implies that | |
| 754 // they are only available after a call to AsyncContext.dispatch(...); | |
| 755 | |
| 756 // have we been forwarded before? | |
| 757 String uri=(String)r.getAttribute(RequestDispatcher.FORWARD_REQUEST_URI); | |
| 758 if (uri!=null) | |
| 759 { | |
| 760 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,uri); | |
| 761 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getAttribute(RequestDispatcher.FORWARD_CONTEXT_PATH)); | |
| 762 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getAttribute(RequestDispatcher.FORWARD_SERVLET_PATH)); | |
| 763 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getAttribute(RequestDispatcher.FORWARD_PATH_INFO)); | |
| 764 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getAttribute(RequestDispatcher.FORWARD_QUERY_STRING)); | |
| 765 } | |
| 766 else | |
| 767 { | |
| 768 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,r.getRequestURI()); | |
| 769 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getContextPath()); | |
| 770 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getServletPath()); | |
| 771 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getPathInfo()); | |
| 772 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getQueryString()); | |
| 773 } | |
| 774 } | |
| 775 } | |
| 776 | |
| 777 public ServletContext getSuspendedContext() | |
| 778 { | |
| 779 return _suspendedContext; | |
| 780 } | |
| 781 | |
| 782 public ServletContext getDispatchContext() | |
| 783 { | |
| 784 return _dispatchContext; | |
| 785 } | |
| 786 | |
| 787 public ServletContext getServletContext() | |
| 788 { | |
| 789 return _dispatchContext==null?_suspendedContext:_dispatchContext; | |
| 790 } | |
| 791 | |
| 792 public void setPath(String path) | |
| 793 { | |
| 794 _pathInContext=path; | |
| 795 } | |
| 796 | |
| 797 /* ------------------------------------------------------------ */ | |
| 798 /** | |
| 799 * @return The path in the context | |
| 800 */ | |
| 801 public String getPath() | |
| 802 { | |
| 803 return _pathInContext; | |
| 804 } | |
| 805 } | |
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806 } |