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annotate src/org/eclipse/jetty/server/AsyncContinuation.java @ 921:a5af9ee7cf91
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| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Sun, 09 Oct 2016 18:09:50 -0600 |
| parents | 3268ddf919d4 |
| children | 03f39c8abd6b |
| 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 volatile boolean _responseWrapped; | |
| 87 private long _timeoutMs=DEFAULT_TIMEOUT; | |
| 88 private AsyncEventState _event; | |
| 89 private volatile long _expireAt; | |
| 90 private volatile boolean _continuation; | |
| 91 | |
| 92 /* ------------------------------------------------------------ */ | |
| 93 protected AsyncContinuation() | |
| 94 { | |
| 95 _state=__IDLE; | |
| 96 _initial=true; | |
| 97 } | |
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98 |
| 865 | 99 /* ------------------------------------------------------------ */ |
| 100 protected void setConnection(final AbstractHttpConnection connection) | |
| 101 { | |
| 102 synchronized(this) | |
| 103 { | |
| 104 _connection=connection; | |
| 105 } | |
| 106 } | |
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107 |
| 865 | 108 /* ------------------------------------------------------------ */ |
| 109 public void addListener(AsyncListener listener) | |
| 110 { | |
| 111 synchronized(this) | |
| 112 { | |
| 113 if (_asyncListeners==null) | |
| 114 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 115 _asyncListeners.add(listener); | |
| 116 } | |
| 117 } | |
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118 |
| 865 | 119 /* ------------------------------------------------------------ */ |
| 120 public void addListener(AsyncListener listener,ServletRequest request, ServletResponse response) | |
| 121 { | |
| 122 synchronized(this) | |
| 123 { | |
| 124 // TODO handle the request/response ??? | |
| 125 if (_asyncListeners==null) | |
| 126 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 127 _asyncListeners.add(listener); | |
| 128 } | |
| 129 } | |
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130 |
| 865 | 131 /* ------------------------------------------------------------ */ |
| 132 public void addContinuationListener(ContinuationListener listener) | |
| 133 { | |
| 134 synchronized(this) | |
| 135 { | |
| 136 if (_continuationListeners==null) | |
| 137 _continuationListeners=new ArrayList<ContinuationListener>(); | |
| 138 _continuationListeners.add(listener); | |
| 139 } | |
| 140 } | |
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141 |
| 865 | 142 /* ------------------------------------------------------------ */ |
| 143 public void setTimeout(long ms) | |
| 144 { | |
| 145 synchronized(this) | |
| 146 { | |
| 147 _timeoutMs=ms; | |
| 148 } | |
| 149 } | |
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150 |
| 865 | 151 /* ------------------------------------------------------------ */ |
| 152 public long getTimeout() | |
| 153 { | |
| 154 synchronized(this) | |
| 155 { | |
| 156 return _timeoutMs; | |
| 157 } | |
| 158 } | |
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159 |
| 865 | 160 /* ------------------------------------------------------------ */ |
| 161 public AsyncEventState getAsyncEventState() | |
| 162 { | |
| 163 synchronized(this) | |
| 164 { | |
| 165 return _event; | |
| 166 } | |
| 167 } | |
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168 |
| 865 | 169 /* ------------------------------------------------------------ */ |
| 170 /** | |
| 171 * @see org.eclipse.jetty.continuation.Continuation#keepWrappers() | |
| 172 */ | |
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173 |
| 865 | 174 /* ------------------------------------------------------------ */ |
| 175 /** | |
| 176 * @see org.eclipse.jetty.continuation.Continuation#isResponseWrapped() | |
| 177 */ | |
| 178 public boolean isResponseWrapped() | |
| 179 { | |
| 180 return _responseWrapped; | |
| 181 } | |
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182 |
| 865 | 183 /* ------------------------------------------------------------ */ |
| 184 /* (non-Javadoc) | |
| 185 * @see javax.servlet.ServletRequest#isInitial() | |
| 186 */ | |
| 187 public boolean isInitial() | |
| 188 { | |
| 189 synchronized(this) | |
| 190 { | |
| 191 return _initial; | |
| 192 } | |
| 193 } | |
| 194 | |
| 195 public boolean isContinuation() | |
| 196 { | |
| 197 return _continuation; | |
| 198 } | |
| 199 | |
| 200 /* ------------------------------------------------------------ */ | |
| 201 /* (non-Javadoc) | |
| 202 * @see javax.servlet.ServletRequest#isSuspended() | |
| 203 */ | |
| 204 public boolean isSuspended() | |
| 205 { | |
| 206 synchronized(this) | |
| 207 { | |
| 208 switch(_state) | |
| 209 { | |
| 210 default: | |
| 211 return false; | |
| 212 } | |
| 213 } | |
| 214 } | |
| 215 | |
| 216 /* ------------------------------------------------------------ */ | |
| 217 public boolean isSuspending() | |
| 218 { | |
| 219 synchronized(this) | |
| 220 { | |
| 221 switch(_state) | |
| 222 { | |
| 223 default: | |
| 224 return false; | |
| 225 } | |
| 226 } | |
| 227 } | |
| 228 | |
| 229 /* ------------------------------------------------------------ */ | |
| 230 public boolean isDispatchable() | |
| 231 { | |
| 232 synchronized(this) | |
| 233 { | |
| 234 switch(_state) | |
| 235 { | |
| 236 default: | |
| 237 return false; | |
| 238 } | |
| 239 } | |
| 240 } | |
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241 |
| 865 | 242 /* ------------------------------------------------------------ */ |
| 243 @Override | |
| 244 public String toString() | |
| 245 { | |
| 246 synchronized (this) | |
| 247 { | |
| 248 return super.toString()+"@"+getStatusString(); | |
| 249 } | |
| 250 } | |
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251 |
| 865 | 252 /* ------------------------------------------------------------ */ |
| 253 public String getStatusString() | |
| 254 { | |
| 255 synchronized (this) | |
| 256 { | |
| 257 return | |
| 258 ((_state==__IDLE)?"IDLE": | |
| 259 (_state==__DISPATCHED)?"DISPATCHED": | |
| 260 (_state==__UNCOMPLETED)?"UNCOMPLETED": | |
| 261 (_state==__COMPLETED)?"COMPLETE": | |
| 262 ("UNKNOWN?"+_state))+ | |
| 263 (_initial?",initial":"")+ | |
| 921 | 264 (_resumed?",resumed":""); |
| 865 | 265 } |
| 266 } | |
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267 |
| 865 | 268 /* ------------------------------------------------------------ */ |
| 269 /** | |
| 270 * @return false if the handling of the request should not proceed | |
| 271 */ | |
| 272 protected boolean handling() | |
| 273 { | |
| 274 synchronized (this) | |
| 275 { | |
| 276 _continuation=false; | |
| 277 | |
| 278 switch(_state) | |
| 279 { | |
| 280 case __IDLE: | |
| 281 _initial=true; | |
| 282 _state=__DISPATCHED; | |
| 283 if (_asyncListeners!=null) | |
| 284 _asyncListeners.clear(); | |
| 285 return true; | |
| 286 | |
| 287 default: | |
| 288 throw new IllegalStateException(this.getStatusString()); | |
| 289 } | |
| 290 } | |
| 291 } | |
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292 |
| 865 | 293 /* ------------------------------------------------------------ */ |
| 294 /** | |
| 295 * Signal that the HttpConnection has finished handling the request. | |
| 296 * For blocking connectors, this call may block if the request has | |
| 297 * been suspended (startAsync called). | |
| 298 * @return true if handling is complete, false if the request should | |
| 299 * be handled again (eg because of a resume that happened before unhandle was called) | |
| 300 */ | |
| 301 protected boolean unhandle() | |
| 302 { | |
| 303 synchronized (this) | |
| 304 { | |
| 305 switch(_state) | |
| 306 { | |
| 307 case __DISPATCHED: | |
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308 _state = __UNCOMPLETED; |
| 865 | 309 return true; |
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310 |
| 865 | 311 case __IDLE: |
| 312 throw new IllegalStateException(this.getStatusString()); | |
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313 |
| 865 | 314 default: |
| 315 throw new IllegalStateException(this.getStatusString()); | |
| 316 } | |
| 317 } | |
| 318 } | |
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319 |
| 865 | 320 /* ------------------------------------------------------------ */ |
| 321 public void dispatch() | |
| 322 { | |
| 323 boolean dispatch=false; | |
| 324 synchronized (this) | |
| 325 { | |
| 326 switch(_state) | |
| 327 { | |
| 328 default: | |
| 329 throw new IllegalStateException(this.getStatusString()); | |
| 330 } | |
| 331 } | |
| 332 } | |
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333 |
| 865 | 334 /* ------------------------------------------------------------ */ |
| 335 protected void expired() | |
| 336 { | |
| 337 } | |
| 338 | |
| 339 /* ------------------------------------------------------------ */ | |
| 340 /* (non-Javadoc) | |
| 341 * @see javax.servlet.ServletRequest#complete() | |
| 342 */ | |
| 343 public void complete() | |
| 344 { | |
| 345 // just like resume, except don't set _resumed=true; | |
| 346 boolean dispatch=false; | |
| 347 synchronized (this) | |
| 348 { | |
| 349 switch(_state) | |
| 350 { | |
| 351 case __DISPATCHED: | |
| 352 throw new IllegalStateException(this.getStatusString()); | |
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353 |
| 865 | 354 default: |
| 355 throw new IllegalStateException(this.getStatusString()); | |
| 356 } | |
| 357 } | |
| 358 } | |
| 359 | |
| 360 /* ------------------------------------------------------------ */ | |
| 361 /* (non-Javadoc) | |
| 362 * @see javax.servlet.ServletRequest#complete() | |
| 363 */ | |
| 364 public void errorComplete() | |
| 365 { | |
| 366 // just like complete except can overrule a prior dispatch call; | |
| 367 synchronized (this) | |
| 368 { | |
| 369 switch(_state) | |
| 370 { | |
| 371 default: | |
| 372 throw new IllegalStateException(this.getStatusString()); | |
| 373 } | |
| 374 } | |
| 375 } | |
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376 |
| 865 | 377 /* ------------------------------------------------------------ */ |
| 378 @Override | |
| 379 public <T extends AsyncListener> T createListener(Class<T> clazz) throws ServletException | |
| 380 { | |
| 381 try | |
| 382 { | |
| 383 // TODO inject | |
| 384 return clazz.newInstance(); | |
| 385 } | |
| 386 catch(Exception e) | |
| 387 { | |
| 388 throw new ServletException(e); | |
| 389 } | |
| 390 } | |
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391 |
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392 |
| 865 | 393 /* ------------------------------------------------------------ */ |
| 394 /* (non-Javadoc) | |
| 395 * @see javax.servlet.ServletRequest#complete() | |
| 396 */ | |
| 397 protected void doComplete(Throwable ex) | |
| 398 { | |
| 399 final List<ContinuationListener> cListeners; | |
| 400 final List<AsyncListener> aListeners; | |
| 401 synchronized (this) | |
| 402 { | |
| 403 switch(_state) | |
| 404 { | |
| 405 case __UNCOMPLETED: | |
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406 _state = __COMPLETED; |
| 865 | 407 cListeners=_continuationListeners; |
| 408 aListeners=_asyncListeners; | |
| 409 break; | |
| 410 | |
| 411 default: | |
| 412 cListeners=null; | |
| 413 aListeners=null; | |
| 414 throw new IllegalStateException(this.getStatusString()); | |
| 415 } | |
| 416 } | |
| 417 | |
| 418 if (aListeners!=null) | |
| 419 { | |
| 420 for (AsyncListener listener : aListeners) | |
| 421 { | |
| 422 try | |
| 423 { | |
| 424 if (ex!=null) | |
| 425 { | |
| 426 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_EXCEPTION,ex); | |
| 427 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_MESSAGE,ex.getMessage()); | |
| 428 listener.onError(_event); | |
| 429 } | |
| 430 else | |
| 431 listener.onComplete(_event); | |
| 432 } | |
| 433 catch(Exception e) | |
| 434 { | |
| 435 LOG.warn("",e); | |
| 436 } | |
| 437 } | |
| 438 } | |
| 439 if (cListeners!=null) | |
| 440 { | |
| 441 for (ContinuationListener listener : cListeners) | |
| 442 { | |
| 443 try | |
| 444 { | |
| 445 listener.onComplete(this); | |
| 446 } | |
| 447 catch(Exception e) | |
| 448 { | |
| 449 LOG.warn("",e); | |
| 450 } | |
| 451 } | |
| 452 } | |
| 453 } | |
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454 |
| 865 | 455 /* ------------------------------------------------------------ */ |
| 456 protected void recycle() | |
| 457 { | |
| 458 synchronized (this) | |
| 459 { | |
| 460 switch(_state) | |
| 461 { | |
| 462 case __DISPATCHED: | |
| 463 throw new IllegalStateException(getStatusString()); | |
| 464 default: | |
| 465 _state=__IDLE; | |
| 466 } | |
| 467 _initial = true; | |
| 468 _resumed=false; | |
| 469 _responseWrapped=false; | |
| 470 cancelTimeout(); | |
| 471 _timeoutMs=DEFAULT_TIMEOUT; | |
| 472 _continuationListeners=null; | |
| 473 } | |
| 474 } | |
| 475 | |
| 476 /* ------------------------------------------------------------ */ | |
| 477 public void cancel() | |
| 478 { | |
| 479 synchronized (this) | |
| 480 { | |
| 481 cancelTimeout(); | |
| 482 _continuationListeners=null; | |
| 483 } | |
| 484 } | |
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485 |
| 865 | 486 /* ------------------------------------------------------------ */ |
| 487 protected void scheduleDispatch() | |
| 488 { | |
| 489 EndPoint endp=_connection.getEndPoint(); | |
| 490 if (!endp.isBlocking()) | |
| 491 { | |
| 492 ((AsyncEndPoint)endp).asyncDispatch(); | |
| 493 } | |
| 494 } | |
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495 |
| 865 | 496 /* ------------------------------------------------------------ */ |
| 497 protected void scheduleTimeout() | |
| 498 { | |
| 499 EndPoint endp=_connection.getEndPoint(); | |
| 500 if (_timeoutMs>0) | |
| 501 { | |
| 502 if (endp.isBlocking()) | |
| 503 { | |
| 504 synchronized(this) | |
| 505 { | |
| 506 _expireAt = System.currentTimeMillis()+_timeoutMs; | |
| 507 long wait=_timeoutMs; | |
| 508 while (_expireAt>0 && wait>0 && _connection.getServer().isRunning()) | |
| 509 { | |
| 510 try | |
| 511 { | |
| 512 this.wait(wait); | |
| 513 } | |
| 514 catch (InterruptedException e) | |
| 515 { | |
| 516 LOG.trace("",e); | |
| 517 } | |
| 518 wait=_expireAt-System.currentTimeMillis(); | |
| 519 } | |
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520 |
| 865 | 521 if (_expireAt>0 && wait<=0 && _connection.getServer().isRunning()) |
| 522 { | |
| 523 expired(); | |
| 524 } | |
| 525 } | |
| 526 } | |
| 527 else | |
| 528 { | |
| 529 ((AsyncEndPoint)endp).scheduleTimeout(_event._timeout,_timeoutMs); | |
| 530 } | |
| 531 } | |
| 532 } | |
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533 |
| 865 | 534 /* ------------------------------------------------------------ */ |
| 535 protected void cancelTimeout() | |
| 536 { | |
| 537 EndPoint endp=_connection.getEndPoint(); | |
| 538 if (endp.isBlocking()) | |
| 539 { | |
| 540 synchronized(this) | |
| 541 { | |
| 542 _expireAt=0; | |
| 543 this.notifyAll(); | |
| 544 } | |
| 545 } | |
| 546 else | |
| 547 { | |
| 548 final AsyncEventState event=_event; | |
| 549 if (event!=null) | |
| 550 { | |
| 551 ((AsyncEndPoint)endp).cancelTimeout(event._timeout); | |
| 552 } | |
| 553 } | |
| 554 } | |
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555 |
| 865 | 556 /* ------------------------------------------------------------ */ |
| 557 boolean isUncompleted() | |
| 558 { | |
| 559 synchronized (this) | |
| 560 { | |
| 561 return _state==__UNCOMPLETED; | |
| 562 } | |
| 563 } | |
| 564 | |
| 565 /* ------------------------------------------------------------ */ | |
| 566 public boolean isComplete() | |
| 567 { | |
| 568 synchronized (this) | |
| 569 { | |
| 570 return _state==__COMPLETED; | |
| 571 } | |
| 572 } | |
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573 |
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574 |
| 865 | 575 /* ------------------------------------------------------------ */ |
| 576 public boolean isAsync() | |
| 577 { | |
| 578 synchronized (this) | |
| 579 { | |
| 580 switch(_state) | |
| 581 { | |
| 582 case __IDLE: | |
| 583 case __DISPATCHED: | |
| 584 case __UNCOMPLETED: | |
| 585 case __COMPLETED: | |
| 586 return false; | |
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587 |
| 865 | 588 default: |
| 589 return true; | |
| 590 } | |
| 591 } | |
| 592 } | |
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593 |
| 865 | 594 /* ------------------------------------------------------------ */ |
| 595 public void dispatch(ServletContext context, String path) | |
| 596 { | |
| 597 _event._dispatchContext=context; | |
| 598 _event.setPath(path); | |
| 599 dispatch(); | |
| 600 } | |
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601 |
| 865 | 602 /* ------------------------------------------------------------ */ |
| 603 public void dispatch(String path) | |
| 604 { | |
| 605 _event.setPath(path); | |
| 606 dispatch(); | |
| 607 } | |
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608 |
| 865 | 609 /* ------------------------------------------------------------ */ |
| 610 public Request getBaseRequest() | |
| 611 { | |
| 612 return _connection.getRequest(); | |
| 613 } | |
| 614 | |
| 615 /* ------------------------------------------------------------ */ | |
| 616 public ServletRequest getRequest() | |
| 617 { | |
| 618 if (_event!=null) | |
| 619 return _event.getSuppliedRequest(); | |
| 620 return _connection.getRequest(); | |
| 621 } | |
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622 |
| 865 | 623 /* ------------------------------------------------------------ */ |
| 624 public ServletResponse getResponse() | |
| 625 { | |
| 626 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 627 return _event.getSuppliedResponse(); | |
| 628 return _connection.getResponse(); | |
| 629 } | |
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630 |
| 865 | 631 /* ------------------------------------------------------------ */ |
| 632 public void start(final Runnable run) | |
| 633 { | |
| 634 final AsyncEventState event=_event; | |
| 635 if (event!=null) | |
| 636 { | |
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637 _connection.getServer().threadPool.execute(new Runnable() |
| 865 | 638 { |
| 639 public void run() | |
| 640 { | |
| 641 ((Context)event.getServletContext()).getContextHandler().handle(run); | |
| 642 } | |
| 643 }); | |
| 644 } | |
| 645 } | |
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646 |
| 865 | 647 /* ------------------------------------------------------------ */ |
| 648 public boolean hasOriginalRequestAndResponse() | |
| 649 { | |
| 650 synchronized (this) | |
| 651 { | |
| 652 return (_event!=null && _event.getSuppliedRequest()==_connection._request && _event.getSuppliedResponse()==_connection._response); | |
| 653 } | |
| 654 } | |
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655 |
| 865 | 656 /* ------------------------------------------------------------ */ |
| 657 public ContextHandler getContextHandler() | |
| 658 { | |
| 659 final AsyncEventState event=_event; | |
| 660 if (event!=null) | |
| 661 return ((Context)event.getServletContext()).getContextHandler(); | |
| 662 return null; | |
| 663 } | |
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664 |
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665 |
| 865 | 666 /* ------------------------------------------------------------ */ |
| 667 /** | |
| 668 * @see Continuation#isResumed() | |
| 669 */ | |
| 670 public boolean isResumed() | |
| 671 { | |
| 672 synchronized (this) | |
| 673 { | |
| 674 return _resumed; | |
| 675 } | |
| 676 } | |
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677 |
| 865 | 678 /* ------------------------------------------------------------ */ |
| 679 /** | |
| 680 * @see Continuation#resume() | |
| 681 */ | |
| 682 public void resume() | |
| 683 { | |
| 684 dispatch(); | |
| 685 } | |
| 686 | |
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687 |
| 865 | 688 /* ------------------------------------------------------------ */ |
| 689 /** | |
| 690 * @see org.eclipse.jetty.continuation.Continuation#getServletResponse() | |
| 691 */ | |
| 692 public ServletResponse getServletResponse() | |
| 693 { | |
| 694 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 695 return _event.getSuppliedResponse(); | |
| 696 return _connection.getResponse(); | |
| 697 } | |
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698 |
| 865 | 699 /* ------------------------------------------------------------ */ |
| 700 /** | |
| 701 * @see org.eclipse.jetty.continuation.Continuation#getAttribute(java.lang.String) | |
| 702 */ | |
| 703 public Object getAttribute(String name) | |
| 704 { | |
| 705 return _connection.getRequest().getAttribute(name); | |
| 706 } | |
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707 |
| 865 | 708 /* ------------------------------------------------------------ */ |
| 709 /** | |
| 710 * @see org.eclipse.jetty.continuation.Continuation#removeAttribute(java.lang.String) | |
| 711 */ | |
| 712 public void removeAttribute(String name) | |
| 713 { | |
| 714 _connection.getRequest().removeAttribute(name); | |
| 715 } | |
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716 |
| 865 | 717 /* ------------------------------------------------------------ */ |
| 718 /** | |
| 719 * @see org.eclipse.jetty.continuation.Continuation#setAttribute(java.lang.String, java.lang.Object) | |
| 720 */ | |
| 721 public void setAttribute(String name, Object attribute) | |
| 722 { | |
| 723 _connection.getRequest().setAttribute(name,attribute); | |
| 724 } | |
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725 |
| 865 | 726 /* ------------------------------------------------------------ */ |
| 727 /** | |
| 728 * @see org.eclipse.jetty.continuation.Continuation#undispatch() | |
| 729 */ | |
| 730 public void undispatch() | |
| 731 { | |
| 732 if (isSuspended()) | |
| 733 { | |
| 734 if (LOG.isDebugEnabled()) | |
| 735 throw new ContinuationThrowable(); | |
| 736 else | |
| 737 throw __exception; | |
| 738 } | |
| 739 throw new IllegalStateException("!suspended"); | |
| 740 } | |
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741 |
| 865 | 742 /* ------------------------------------------------------------ */ |
| 743 /* ------------------------------------------------------------ */ | |
| 744 public class AsyncTimeout extends Timeout.Task implements Runnable | |
| 745 { | |
| 746 @Override | |
| 747 public void expired() | |
| 748 { | |
| 749 AsyncContinuation.this.expired(); | |
| 750 } | |
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751 |
| 865 | 752 @Override |
| 753 public void run() | |
| 754 { | |
| 755 AsyncContinuation.this.expired(); | |
| 756 } | |
| 757 } | |
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758 |
| 865 | 759 /* ------------------------------------------------------------ */ |
| 760 /* ------------------------------------------------------------ */ | |
| 761 public class AsyncEventState extends AsyncEvent | |
| 762 { | |
| 763 private final ServletContext _suspendedContext; | |
| 764 private ServletContext _dispatchContext; | |
| 765 private String _pathInContext; | |
| 766 private Timeout.Task _timeout= new AsyncTimeout(); | |
| 767 | |
| 768 public AsyncEventState(ServletContext context, ServletRequest request, ServletResponse response) | |
| 769 { | |
| 770 super(AsyncContinuation.this, request,response); | |
| 771 _suspendedContext=context; | |
| 772 // Get the base request So we can remember the initial paths | |
| 773 Request r=_connection.getRequest(); | |
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774 |
| 865 | 775 // If we haven't been async dispatched before |
| 776 if (r.getAttribute(AsyncContext.ASYNC_REQUEST_URI)==null) | |
| 777 { | |
| 778 // We are setting these attributes during startAsync, when the spec implies that | |
| 779 // they are only available after a call to AsyncContext.dispatch(...); | |
| 780 | |
| 781 // have we been forwarded before? | |
| 782 String uri=(String)r.getAttribute(RequestDispatcher.FORWARD_REQUEST_URI); | |
| 783 if (uri!=null) | |
| 784 { | |
| 785 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,uri); | |
| 786 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getAttribute(RequestDispatcher.FORWARD_CONTEXT_PATH)); | |
| 787 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getAttribute(RequestDispatcher.FORWARD_SERVLET_PATH)); | |
| 788 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getAttribute(RequestDispatcher.FORWARD_PATH_INFO)); | |
| 789 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getAttribute(RequestDispatcher.FORWARD_QUERY_STRING)); | |
| 790 } | |
| 791 else | |
| 792 { | |
| 793 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,r.getRequestURI()); | |
| 794 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getContextPath()); | |
| 795 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getServletPath()); | |
| 796 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getPathInfo()); | |
| 797 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getQueryString()); | |
| 798 } | |
| 799 } | |
| 800 } | |
| 801 | |
| 802 public ServletContext getSuspendedContext() | |
| 803 { | |
| 804 return _suspendedContext; | |
| 805 } | |
| 806 | |
| 807 public ServletContext getDispatchContext() | |
| 808 { | |
| 809 return _dispatchContext; | |
| 810 } | |
| 811 | |
| 812 public ServletContext getServletContext() | |
| 813 { | |
| 814 return _dispatchContext==null?_suspendedContext:_dispatchContext; | |
| 815 } | |
| 816 | |
| 817 public void setPath(String path) | |
| 818 { | |
| 819 _pathInContext=path; | |
| 820 } | |
| 821 | |
| 822 /* ------------------------------------------------------------ */ | |
| 823 /** | |
| 824 * @return The path in the context | |
| 825 */ | |
| 826 public String getPath() | |
| 827 { | |
| 828 return _pathInContext; | |
| 829 } | |
| 830 } | |
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831 } |