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annotate src/org/eclipse/jetty/server/AsyncContinuation.java @ 917:1fc8ee20cb18
remove doSuspend
| author | Franklin Schmidt <fschmidt@gmail.com> |
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| date | Sun, 09 Oct 2016 03:23:55 -0600 |
| parents | b9aa175d9a29 |
| children | 7b62446899c6 |
| 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 __ASYNCSTARTED=2; // Suspend called, but not yet returned to container | |
| 75 private static final int __REDISPATCHING=3;// resumed while dispatched | |
| 76 private static final int __ASYNCWAIT=4; // Suspended and parked | |
| 77 private static final int __REDISPATCH=5; // Has been scheduled | |
| 78 private static final int __REDISPATCHED=6; // Request redispatched to filter/servlet | |
| 79 private static final int __COMPLETING=7; // complete while dispatched | |
| 80 private static final int __UNCOMPLETED=8; // Request is completable | |
| 81 private static final int __COMPLETED=9; // Request is complete | |
| 82 | |
| 83 /* ------------------------------------------------------------ */ | |
| 84 protected AbstractHttpConnection _connection; | |
| 85 private List<AsyncListener> _lastAsyncListeners; | |
| 86 private List<AsyncListener> _asyncListeners; | |
| 87 private List<ContinuationListener> _continuationListeners; | |
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88 |
| 865 | 89 /* ------------------------------------------------------------ */ |
| 90 private int _state; | |
| 91 private boolean _initial; | |
| 92 private boolean _resumed; | |
| 93 private boolean _expired; | |
| 94 private volatile boolean _responseWrapped; | |
| 95 private long _timeoutMs=DEFAULT_TIMEOUT; | |
| 96 private AsyncEventState _event; | |
| 97 private volatile long _expireAt; | |
| 98 private volatile boolean _continuation; | |
| 99 | |
| 100 /* ------------------------------------------------------------ */ | |
| 101 protected AsyncContinuation() | |
| 102 { | |
| 103 _state=__IDLE; | |
| 104 _initial=true; | |
| 105 } | |
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106 |
| 865 | 107 /* ------------------------------------------------------------ */ |
| 108 protected void setConnection(final AbstractHttpConnection connection) | |
| 109 { | |
| 110 synchronized(this) | |
| 111 { | |
| 112 _connection=connection; | |
| 113 } | |
| 114 } | |
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115 |
| 865 | 116 /* ------------------------------------------------------------ */ |
| 117 public void addListener(AsyncListener listener) | |
| 118 { | |
| 119 synchronized(this) | |
| 120 { | |
| 121 if (_asyncListeners==null) | |
| 122 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 123 _asyncListeners.add(listener); | |
| 124 } | |
| 125 } | |
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126 |
| 865 | 127 /* ------------------------------------------------------------ */ |
| 128 public void addListener(AsyncListener listener,ServletRequest request, ServletResponse response) | |
| 129 { | |
| 130 synchronized(this) | |
| 131 { | |
| 132 // TODO handle the request/response ??? | |
| 133 if (_asyncListeners==null) | |
| 134 _asyncListeners=new ArrayList<AsyncListener>(); | |
| 135 _asyncListeners.add(listener); | |
| 136 } | |
| 137 } | |
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138 |
| 865 | 139 /* ------------------------------------------------------------ */ |
| 140 public void addContinuationListener(ContinuationListener listener) | |
| 141 { | |
| 142 synchronized(this) | |
| 143 { | |
| 144 if (_continuationListeners==null) | |
| 145 _continuationListeners=new ArrayList<ContinuationListener>(); | |
| 146 _continuationListeners.add(listener); | |
| 147 } | |
| 148 } | |
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149 |
| 865 | 150 /* ------------------------------------------------------------ */ |
| 151 public void setTimeout(long ms) | |
| 152 { | |
| 153 synchronized(this) | |
| 154 { | |
| 155 _timeoutMs=ms; | |
| 156 } | |
| 157 } | |
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158 |
| 865 | 159 /* ------------------------------------------------------------ */ |
| 160 public long getTimeout() | |
| 161 { | |
| 162 synchronized(this) | |
| 163 { | |
| 164 return _timeoutMs; | |
| 165 } | |
| 166 } | |
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167 |
| 865 | 168 /* ------------------------------------------------------------ */ |
| 169 public AsyncEventState getAsyncEventState() | |
| 170 { | |
| 171 synchronized(this) | |
| 172 { | |
| 173 return _event; | |
| 174 } | |
| 175 } | |
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176 |
| 865 | 177 /* ------------------------------------------------------------ */ |
| 178 /** | |
| 179 * @see org.eclipse.jetty.continuation.Continuation#keepWrappers() | |
| 180 */ | |
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181 |
| 865 | 182 /* ------------------------------------------------------------ */ |
| 183 /** | |
| 184 * @see org.eclipse.jetty.continuation.Continuation#isResponseWrapped() | |
| 185 */ | |
| 186 public boolean isResponseWrapped() | |
| 187 { | |
| 188 return _responseWrapped; | |
| 189 } | |
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190 |
| 865 | 191 /* ------------------------------------------------------------ */ |
| 192 /* (non-Javadoc) | |
| 193 * @see javax.servlet.ServletRequest#isInitial() | |
| 194 */ | |
| 195 public boolean isInitial() | |
| 196 { | |
| 197 synchronized(this) | |
| 198 { | |
| 199 return _initial; | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 public boolean isContinuation() | |
| 204 { | |
| 205 return _continuation; | |
| 206 } | |
| 207 | |
| 208 /* ------------------------------------------------------------ */ | |
| 209 /* (non-Javadoc) | |
| 210 * @see javax.servlet.ServletRequest#isSuspended() | |
| 211 */ | |
| 212 public boolean isSuspended() | |
| 213 { | |
| 214 synchronized(this) | |
| 215 { | |
| 216 switch(_state) | |
| 217 { | |
| 218 case __ASYNCSTARTED: | |
| 219 case __REDISPATCHING: | |
| 220 case __COMPLETING: | |
| 221 case __ASYNCWAIT: | |
| 222 return true; | |
| 223 | |
| 224 default: | |
| 225 return false; | |
| 226 } | |
| 227 } | |
| 228 } | |
| 229 | |
| 230 /* ------------------------------------------------------------ */ | |
| 231 public boolean isSuspending() | |
| 232 { | |
| 233 synchronized(this) | |
| 234 { | |
| 235 switch(_state) | |
| 236 { | |
| 237 case __ASYNCSTARTED: | |
| 238 case __ASYNCWAIT: | |
| 239 return true; | |
| 240 | |
| 241 default: | |
| 242 return false; | |
| 243 } | |
| 244 } | |
| 245 } | |
| 246 | |
| 247 /* ------------------------------------------------------------ */ | |
| 248 public boolean isDispatchable() | |
| 249 { | |
| 250 synchronized(this) | |
| 251 { | |
| 252 switch(_state) | |
| 253 { | |
| 254 case __REDISPATCH: | |
| 255 case __REDISPATCHED: | |
| 256 case __REDISPATCHING: | |
| 257 case __COMPLETING: | |
| 258 return true; | |
| 259 | |
| 260 default: | |
| 261 return false; | |
| 262 } | |
| 263 } | |
| 264 } | |
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265 |
| 865 | 266 /* ------------------------------------------------------------ */ |
| 267 @Override | |
| 268 public String toString() | |
| 269 { | |
| 270 synchronized (this) | |
| 271 { | |
| 272 return super.toString()+"@"+getStatusString(); | |
| 273 } | |
| 274 } | |
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275 |
| 865 | 276 /* ------------------------------------------------------------ */ |
| 277 public String getStatusString() | |
| 278 { | |
| 279 synchronized (this) | |
| 280 { | |
| 281 return | |
| 282 ((_state==__IDLE)?"IDLE": | |
| 283 (_state==__DISPATCHED)?"DISPATCHED": | |
| 284 (_state==__ASYNCSTARTED)?"ASYNCSTARTED": | |
| 285 (_state==__ASYNCWAIT)?"ASYNCWAIT": | |
| 286 (_state==__REDISPATCHING)?"REDISPATCHING": | |
| 287 (_state==__REDISPATCH)?"REDISPATCH": | |
| 288 (_state==__REDISPATCHED)?"REDISPATCHED": | |
| 289 (_state==__COMPLETING)?"COMPLETING": | |
| 290 (_state==__UNCOMPLETED)?"UNCOMPLETED": | |
| 291 (_state==__COMPLETED)?"COMPLETE": | |
| 292 ("UNKNOWN?"+_state))+ | |
| 293 (_initial?",initial":"")+ | |
| 294 (_resumed?",resumed":"")+ | |
| 295 (_expired?",expired":""); | |
| 296 } | |
| 297 } | |
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298 |
| 865 | 299 /* ------------------------------------------------------------ */ |
| 300 /** | |
| 301 * @return false if the handling of the request should not proceed | |
| 302 */ | |
| 303 protected boolean handling() | |
| 304 { | |
| 305 synchronized (this) | |
| 306 { | |
| 307 _continuation=false; | |
| 308 | |
| 309 switch(_state) | |
| 310 { | |
| 311 case __IDLE: | |
| 312 _initial=true; | |
| 313 _state=__DISPATCHED; | |
| 314 if (_lastAsyncListeners!=null) | |
| 315 _lastAsyncListeners.clear(); | |
| 316 if (_asyncListeners!=null) | |
| 317 _asyncListeners.clear(); | |
| 318 else | |
| 319 { | |
| 320 _asyncListeners=_lastAsyncListeners; | |
| 321 _lastAsyncListeners=null; | |
| 322 } | |
| 323 return true; | |
| 324 | |
| 325 case __COMPLETING: | |
| 326 _state=__UNCOMPLETED; | |
| 327 return false; | |
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328 |
| 865 | 329 case __ASYNCWAIT: |
| 330 return false; | |
| 331 | |
| 332 case __REDISPATCH: | |
| 333 _state=__REDISPATCHED; | |
| 334 return true; | |
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335 |
| 865 | 336 default: |
| 337 throw new IllegalStateException(this.getStatusString()); | |
| 338 } | |
| 339 } | |
| 340 } | |
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341 |
| 865 | 342 /* ------------------------------------------------------------ */ |
| 343 /** | |
| 344 * Signal that the HttpConnection has finished handling the request. | |
| 345 * For blocking connectors, this call may block if the request has | |
| 346 * been suspended (startAsync called). | |
| 347 * @return true if handling is complete, false if the request should | |
| 348 * be handled again (eg because of a resume that happened before unhandle was called) | |
| 349 */ | |
| 350 protected boolean unhandle() | |
| 351 { | |
| 352 synchronized (this) | |
| 353 { | |
| 354 switch(_state) | |
| 355 { | |
| 356 case __REDISPATCHED: | |
| 357 case __DISPATCHED: | |
| 358 _state=__UNCOMPLETED; | |
| 359 return true; | |
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360 |
| 865 | 361 case __IDLE: |
| 362 throw new IllegalStateException(this.getStatusString()); | |
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363 |
| 865 | 364 case __ASYNCSTARTED: |
| 365 _initial=false; | |
| 366 _state=__ASYNCWAIT; | |
| 367 scheduleTimeout(); // could block and change state. | |
| 368 if (_state==__ASYNCWAIT) | |
| 369 return true; | |
| 370 else if (_state==__COMPLETING) | |
| 371 { | |
| 372 _state=__UNCOMPLETED; | |
| 373 return true; | |
| 374 } | |
| 375 _initial=false; | |
| 376 _state=__REDISPATCHED; | |
| 377 return false; | |
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378 |
| 865 | 379 case __REDISPATCHING: |
| 380 _initial=false; | |
| 381 _state=__REDISPATCHED; | |
| 382 return false; | |
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383 |
| 865 | 384 case __COMPLETING: |
| 385 _initial=false; | |
| 386 _state=__UNCOMPLETED; | |
| 387 return true; | |
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388 |
| 865 | 389 default: |
| 390 throw new IllegalStateException(this.getStatusString()); | |
| 391 } | |
| 392 } | |
| 393 } | |
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394 |
| 865 | 395 /* ------------------------------------------------------------ */ |
| 396 public void dispatch() | |
| 397 { | |
| 398 boolean dispatch=false; | |
| 399 synchronized (this) | |
| 400 { | |
| 401 switch(_state) | |
| 402 { | |
| 403 case __ASYNCSTARTED: | |
| 404 _state=__REDISPATCHING; | |
| 405 _resumed=true; | |
| 406 return; | |
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407 |
| 865 | 408 case __ASYNCWAIT: |
| 409 dispatch=!_expired; | |
| 410 _state=__REDISPATCH; | |
| 411 _resumed=true; | |
| 412 break; | |
| 413 | |
| 414 case __REDISPATCH: | |
| 415 return; | |
| 416 | |
| 417 default: | |
| 418 throw new IllegalStateException(this.getStatusString()); | |
| 419 } | |
| 420 } | |
| 421 | |
| 422 if (dispatch) | |
| 423 { | |
| 424 cancelTimeout(); | |
| 425 scheduleDispatch(); | |
| 426 } | |
| 427 } | |
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428 |
| 865 | 429 /* ------------------------------------------------------------ */ |
| 430 protected void expired() | |
| 431 { | |
| 432 final List<ContinuationListener> cListeners; | |
| 433 final List<AsyncListener> aListeners; | |
| 434 synchronized (this) | |
| 435 { | |
| 436 switch(_state) | |
| 437 { | |
| 438 case __ASYNCSTARTED: | |
| 439 case __ASYNCWAIT: | |
| 440 cListeners=_continuationListeners; | |
| 441 aListeners=_asyncListeners; | |
| 442 break; | |
| 443 default: | |
| 444 cListeners=null; | |
| 445 aListeners=null; | |
| 446 return; | |
| 447 } | |
| 448 _expired=true; | |
| 449 } | |
| 450 | |
| 451 if (aListeners!=null) | |
| 452 { | |
| 453 for (AsyncListener listener : aListeners) | |
| 454 { | |
| 455 try | |
| 456 { | |
| 457 listener.onTimeout(_event); | |
| 458 } | |
| 459 catch(Exception e) | |
| 460 { | |
| 461 LOG.debug("",e); | |
| 462 _connection.getRequest().setAttribute(RequestDispatcher.ERROR_EXCEPTION,e); | |
| 463 break; | |
| 464 } | |
| 465 } | |
| 466 } | |
| 467 if (cListeners!=null) | |
| 468 { | |
| 469 for (ContinuationListener listener : cListeners) | |
| 470 { | |
| 471 try | |
| 472 { | |
| 473 listener.onTimeout(this); | |
| 474 } | |
| 475 catch(Exception e) | |
| 476 { | |
| 477 LOG.warn("",e); | |
| 478 } | |
| 479 } | |
| 480 } | |
| 481 | |
| 482 synchronized (this) | |
| 483 { | |
| 484 switch(_state) | |
| 485 { | |
| 486 case __ASYNCSTARTED: | |
| 487 case __ASYNCWAIT: | |
| 488 dispatch(); | |
| 489 break; | |
| 490 | |
| 491 default: | |
| 492 if (!_continuation) | |
| 493 _expired=false; | |
| 494 } | |
| 495 } | |
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496 |
| 865 | 497 scheduleDispatch(); |
| 498 } | |
| 499 | |
| 500 /* ------------------------------------------------------------ */ | |
| 501 /* (non-Javadoc) | |
| 502 * @see javax.servlet.ServletRequest#complete() | |
| 503 */ | |
| 504 public void complete() | |
| 505 { | |
| 506 // just like resume, except don't set _resumed=true; | |
| 507 boolean dispatch=false; | |
| 508 synchronized (this) | |
| 509 { | |
| 510 switch(_state) | |
| 511 { | |
| 512 case __DISPATCHED: | |
| 513 case __REDISPATCHED: | |
| 514 throw new IllegalStateException(this.getStatusString()); | |
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515 |
| 865 | 516 case __ASYNCSTARTED: |
| 517 _state=__COMPLETING; | |
| 518 return; | |
| 519 | |
| 520 case __ASYNCWAIT: | |
| 521 _state=__COMPLETING; | |
| 522 dispatch=!_expired; | |
| 523 break; | |
| 524 | |
| 525 default: | |
| 526 throw new IllegalStateException(this.getStatusString()); | |
| 527 } | |
| 528 } | |
| 529 | |
| 530 if (dispatch) | |
| 531 { | |
| 532 cancelTimeout(); | |
| 533 scheduleDispatch(); | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 /* ------------------------------------------------------------ */ | |
| 538 /* (non-Javadoc) | |
| 539 * @see javax.servlet.ServletRequest#complete() | |
| 540 */ | |
| 541 public void errorComplete() | |
| 542 { | |
| 543 // just like complete except can overrule a prior dispatch call; | |
| 544 synchronized (this) | |
| 545 { | |
| 546 switch(_state) | |
| 547 { | |
| 548 case __REDISPATCHING: | |
| 549 case __ASYNCSTARTED: | |
| 550 _state=__COMPLETING; | |
| 551 _resumed=false; | |
| 552 return; | |
| 553 | |
| 554 case __COMPLETING: | |
| 555 return; | |
| 556 | |
| 557 default: | |
| 558 throw new IllegalStateException(this.getStatusString()); | |
| 559 } | |
| 560 } | |
| 561 } | |
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562 |
| 865 | 563 /* ------------------------------------------------------------ */ |
| 564 @Override | |
| 565 public <T extends AsyncListener> T createListener(Class<T> clazz) throws ServletException | |
| 566 { | |
| 567 try | |
| 568 { | |
| 569 // TODO inject | |
| 570 return clazz.newInstance(); | |
| 571 } | |
| 572 catch(Exception e) | |
| 573 { | |
| 574 throw new ServletException(e); | |
| 575 } | |
| 576 } | |
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|
577 |
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578 |
| 865 | 579 /* ------------------------------------------------------------ */ |
| 580 /* (non-Javadoc) | |
| 581 * @see javax.servlet.ServletRequest#complete() | |
| 582 */ | |
| 583 protected void doComplete(Throwable ex) | |
| 584 { | |
| 585 final List<ContinuationListener> cListeners; | |
| 586 final List<AsyncListener> aListeners; | |
| 587 synchronized (this) | |
| 588 { | |
| 589 switch(_state) | |
| 590 { | |
| 591 case __UNCOMPLETED: | |
| 592 _state=__COMPLETED; | |
| 593 cListeners=_continuationListeners; | |
| 594 aListeners=_asyncListeners; | |
| 595 break; | |
| 596 | |
| 597 default: | |
| 598 cListeners=null; | |
| 599 aListeners=null; | |
| 600 throw new IllegalStateException(this.getStatusString()); | |
| 601 } | |
| 602 } | |
| 603 | |
| 604 if (aListeners!=null) | |
| 605 { | |
| 606 for (AsyncListener listener : aListeners) | |
| 607 { | |
| 608 try | |
| 609 { | |
| 610 if (ex!=null) | |
| 611 { | |
| 612 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_EXCEPTION,ex); | |
| 613 _event.getSuppliedRequest().setAttribute(RequestDispatcher.ERROR_MESSAGE,ex.getMessage()); | |
| 614 listener.onError(_event); | |
| 615 } | |
| 616 else | |
| 617 listener.onComplete(_event); | |
| 618 } | |
| 619 catch(Exception e) | |
| 620 { | |
| 621 LOG.warn("",e); | |
| 622 } | |
| 623 } | |
| 624 } | |
| 625 if (cListeners!=null) | |
| 626 { | |
| 627 for (ContinuationListener listener : cListeners) | |
| 628 { | |
| 629 try | |
| 630 { | |
| 631 listener.onComplete(this); | |
| 632 } | |
| 633 catch(Exception e) | |
| 634 { | |
| 635 LOG.warn("",e); | |
| 636 } | |
| 637 } | |
| 638 } | |
| 639 } | |
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|
640 |
| 865 | 641 /* ------------------------------------------------------------ */ |
| 642 protected void recycle() | |
| 643 { | |
| 644 synchronized (this) | |
| 645 { | |
| 646 switch(_state) | |
| 647 { | |
| 648 case __DISPATCHED: | |
| 649 case __REDISPATCHED: | |
| 650 throw new IllegalStateException(getStatusString()); | |
| 651 default: | |
| 652 _state=__IDLE; | |
| 653 } | |
| 654 _initial = true; | |
| 655 _resumed=false; | |
| 656 _expired=false; | |
| 657 _responseWrapped=false; | |
| 658 cancelTimeout(); | |
| 659 _timeoutMs=DEFAULT_TIMEOUT; | |
| 660 _continuationListeners=null; | |
| 661 } | |
| 662 } | |
| 663 | |
| 664 /* ------------------------------------------------------------ */ | |
| 665 public void cancel() | |
| 666 { | |
| 667 synchronized (this) | |
| 668 { | |
| 669 cancelTimeout(); | |
| 670 _continuationListeners=null; | |
| 671 } | |
| 672 } | |
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|
673 |
| 865 | 674 /* ------------------------------------------------------------ */ |
| 675 protected void scheduleDispatch() | |
| 676 { | |
| 677 EndPoint endp=_connection.getEndPoint(); | |
| 678 if (!endp.isBlocking()) | |
| 679 { | |
| 680 ((AsyncEndPoint)endp).asyncDispatch(); | |
| 681 } | |
| 682 } | |
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|
683 |
| 865 | 684 /* ------------------------------------------------------------ */ |
| 685 protected void scheduleTimeout() | |
| 686 { | |
| 687 EndPoint endp=_connection.getEndPoint(); | |
| 688 if (_timeoutMs>0) | |
| 689 { | |
| 690 if (endp.isBlocking()) | |
| 691 { | |
| 692 synchronized(this) | |
| 693 { | |
| 694 _expireAt = System.currentTimeMillis()+_timeoutMs; | |
| 695 long wait=_timeoutMs; | |
| 696 while (_expireAt>0 && wait>0 && _connection.getServer().isRunning()) | |
| 697 { | |
| 698 try | |
| 699 { | |
| 700 this.wait(wait); | |
| 701 } | |
| 702 catch (InterruptedException e) | |
| 703 { | |
| 704 LOG.trace("",e); | |
| 705 } | |
| 706 wait=_expireAt-System.currentTimeMillis(); | |
| 707 } | |
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|
708 |
| 865 | 709 if (_expireAt>0 && wait<=0 && _connection.getServer().isRunning()) |
| 710 { | |
| 711 expired(); | |
| 712 } | |
| 713 } | |
| 714 } | |
| 715 else | |
| 716 { | |
| 717 ((AsyncEndPoint)endp).scheduleTimeout(_event._timeout,_timeoutMs); | |
| 718 } | |
| 719 } | |
| 720 } | |
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|
721 |
| 865 | 722 /* ------------------------------------------------------------ */ |
| 723 protected void cancelTimeout() | |
| 724 { | |
| 725 EndPoint endp=_connection.getEndPoint(); | |
| 726 if (endp.isBlocking()) | |
| 727 { | |
| 728 synchronized(this) | |
| 729 { | |
| 730 _expireAt=0; | |
| 731 this.notifyAll(); | |
| 732 } | |
| 733 } | |
| 734 else | |
| 735 { | |
| 736 final AsyncEventState event=_event; | |
| 737 if (event!=null) | |
| 738 { | |
| 739 ((AsyncEndPoint)endp).cancelTimeout(event._timeout); | |
| 740 } | |
| 741 } | |
| 742 } | |
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|
743 |
| 865 | 744 /* ------------------------------------------------------------ */ |
| 745 public boolean isCompleting() | |
| 746 { | |
| 747 synchronized (this) | |
| 748 { | |
| 749 return _state==__COMPLETING; | |
| 750 } | |
| 751 } | |
| 752 | |
| 753 /* ------------------------------------------------------------ */ | |
| 754 boolean isUncompleted() | |
| 755 { | |
| 756 synchronized (this) | |
| 757 { | |
| 758 return _state==__UNCOMPLETED; | |
| 759 } | |
| 760 } | |
| 761 | |
| 762 /* ------------------------------------------------------------ */ | |
| 763 public boolean isComplete() | |
| 764 { | |
| 765 synchronized (this) | |
| 766 { | |
| 767 return _state==__COMPLETED; | |
| 768 } | |
| 769 } | |
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changeset
|
770 |
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|
771 |
| 865 | 772 /* ------------------------------------------------------------ */ |
| 773 public boolean isAsyncStarted() | |
| 774 { | |
| 775 synchronized (this) | |
| 776 { | |
| 777 switch(_state) | |
| 778 { | |
| 779 case __ASYNCSTARTED: | |
| 780 case __REDISPATCHING: | |
| 781 case __REDISPATCH: | |
| 782 case __ASYNCWAIT: | |
| 783 return true; | |
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|
784 |
| 865 | 785 default: |
| 786 return false; | |
| 787 } | |
| 788 } | |
| 789 } | |
|
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changeset
|
790 |
|
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|
791 |
| 865 | 792 /* ------------------------------------------------------------ */ |
| 793 public boolean isAsync() | |
| 794 { | |
| 795 synchronized (this) | |
| 796 { | |
| 797 switch(_state) | |
| 798 { | |
| 799 case __IDLE: | |
| 800 case __DISPATCHED: | |
| 801 case __UNCOMPLETED: | |
| 802 case __COMPLETED: | |
| 803 return false; | |
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|
804 |
| 865 | 805 default: |
| 806 return true; | |
| 807 } | |
| 808 } | |
| 809 } | |
|
802
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|
810 |
| 865 | 811 /* ------------------------------------------------------------ */ |
| 812 public void dispatch(ServletContext context, String path) | |
| 813 { | |
| 814 _event._dispatchContext=context; | |
| 815 _event.setPath(path); | |
| 816 dispatch(); | |
| 817 } | |
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|
818 |
| 865 | 819 /* ------------------------------------------------------------ */ |
| 820 public void dispatch(String path) | |
| 821 { | |
| 822 _event.setPath(path); | |
| 823 dispatch(); | |
| 824 } | |
|
802
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changeset
|
825 |
| 865 | 826 /* ------------------------------------------------------------ */ |
| 827 public Request getBaseRequest() | |
| 828 { | |
| 829 return _connection.getRequest(); | |
| 830 } | |
| 831 | |
| 832 /* ------------------------------------------------------------ */ | |
| 833 public ServletRequest getRequest() | |
| 834 { | |
| 835 if (_event!=null) | |
| 836 return _event.getSuppliedRequest(); | |
| 837 return _connection.getRequest(); | |
| 838 } | |
|
802
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parents:
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changeset
|
839 |
| 865 | 840 /* ------------------------------------------------------------ */ |
| 841 public ServletResponse getResponse() | |
| 842 { | |
| 843 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 844 return _event.getSuppliedResponse(); | |
| 845 return _connection.getResponse(); | |
| 846 } | |
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802
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changeset
|
847 |
| 865 | 848 /* ------------------------------------------------------------ */ |
| 849 public void start(final Runnable run) | |
| 850 { | |
| 851 final AsyncEventState event=_event; | |
| 852 if (event!=null) | |
| 853 { | |
|
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|
854 _connection.getServer().threadPool.execute(new Runnable() |
| 865 | 855 { |
| 856 public void run() | |
| 857 { | |
| 858 ((Context)event.getServletContext()).getContextHandler().handle(run); | |
| 859 } | |
| 860 }); | |
| 861 } | |
| 862 } | |
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|
863 |
| 865 | 864 /* ------------------------------------------------------------ */ |
| 865 public boolean hasOriginalRequestAndResponse() | |
| 866 { | |
| 867 synchronized (this) | |
| 868 { | |
| 869 return (_event!=null && _event.getSuppliedRequest()==_connection._request && _event.getSuppliedResponse()==_connection._response); | |
| 870 } | |
| 871 } | |
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|
872 |
| 865 | 873 /* ------------------------------------------------------------ */ |
| 874 public ContextHandler getContextHandler() | |
| 875 { | |
| 876 final AsyncEventState event=_event; | |
| 877 if (event!=null) | |
| 878 return ((Context)event.getServletContext()).getContextHandler(); | |
| 879 return null; | |
| 880 } | |
|
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changeset
|
881 |
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|
882 |
| 865 | 883 /* ------------------------------------------------------------ */ |
| 884 /** | |
| 885 * @see Continuation#isResumed() | |
| 886 */ | |
| 887 public boolean isResumed() | |
| 888 { | |
| 889 synchronized (this) | |
| 890 { | |
| 891 return _resumed; | |
| 892 } | |
| 893 } | |
| 894 /* ------------------------------------------------------------ */ | |
| 895 /** | |
| 896 * @see Continuation#isExpired() | |
| 897 */ | |
| 898 public boolean isExpired() | |
| 899 { | |
| 900 synchronized (this) | |
| 901 { | |
| 902 return _expired; | |
| 903 } | |
| 904 } | |
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802
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|
905 |
| 865 | 906 /* ------------------------------------------------------------ */ |
| 907 /** | |
| 908 * @see Continuation#resume() | |
| 909 */ | |
| 910 public void resume() | |
| 911 { | |
| 912 dispatch(); | |
| 913 } | |
| 914 | |
|
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|
915 |
| 865 | 916 /* ------------------------------------------------------------ */ |
| 917 /** | |
| 918 * @see org.eclipse.jetty.continuation.Continuation#getServletResponse() | |
| 919 */ | |
| 920 public ServletResponse getServletResponse() | |
| 921 { | |
| 922 if (_responseWrapped && _event!=null && _event.getSuppliedResponse()!=null) | |
| 923 return _event.getSuppliedResponse(); | |
| 924 return _connection.getResponse(); | |
| 925 } | |
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|
926 |
| 865 | 927 /* ------------------------------------------------------------ */ |
| 928 /** | |
| 929 * @see org.eclipse.jetty.continuation.Continuation#getAttribute(java.lang.String) | |
| 930 */ | |
| 931 public Object getAttribute(String name) | |
| 932 { | |
| 933 return _connection.getRequest().getAttribute(name); | |
| 934 } | |
|
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|
935 |
| 865 | 936 /* ------------------------------------------------------------ */ |
| 937 /** | |
| 938 * @see org.eclipse.jetty.continuation.Continuation#removeAttribute(java.lang.String) | |
| 939 */ | |
| 940 public void removeAttribute(String name) | |
| 941 { | |
| 942 _connection.getRequest().removeAttribute(name); | |
| 943 } | |
|
802
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|
944 |
| 865 | 945 /* ------------------------------------------------------------ */ |
| 946 /** | |
| 947 * @see org.eclipse.jetty.continuation.Continuation#setAttribute(java.lang.String, java.lang.Object) | |
| 948 */ | |
| 949 public void setAttribute(String name, Object attribute) | |
| 950 { | |
| 951 _connection.getRequest().setAttribute(name,attribute); | |
| 952 } | |
|
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|
953 |
| 865 | 954 /* ------------------------------------------------------------ */ |
| 955 /** | |
| 956 * @see org.eclipse.jetty.continuation.Continuation#undispatch() | |
| 957 */ | |
| 958 public void undispatch() | |
| 959 { | |
| 960 if (isSuspended()) | |
| 961 { | |
| 962 if (LOG.isDebugEnabled()) | |
| 963 throw new ContinuationThrowable(); | |
| 964 else | |
| 965 throw __exception; | |
| 966 } | |
| 967 throw new IllegalStateException("!suspended"); | |
| 968 } | |
|
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969 |
| 865 | 970 /* ------------------------------------------------------------ */ |
| 971 /* ------------------------------------------------------------ */ | |
| 972 public class AsyncTimeout extends Timeout.Task implements Runnable | |
| 973 { | |
| 974 @Override | |
| 975 public void expired() | |
| 976 { | |
| 977 AsyncContinuation.this.expired(); | |
| 978 } | |
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parents:
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979 |
| 865 | 980 @Override |
| 981 public void run() | |
| 982 { | |
| 983 AsyncContinuation.this.expired(); | |
| 984 } | |
| 985 } | |
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parents:
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changeset
|
986 |
| 865 | 987 /* ------------------------------------------------------------ */ |
| 988 /* ------------------------------------------------------------ */ | |
| 989 public class AsyncEventState extends AsyncEvent | |
| 990 { | |
| 991 private final ServletContext _suspendedContext; | |
| 992 private ServletContext _dispatchContext; | |
| 993 private String _pathInContext; | |
| 994 private Timeout.Task _timeout= new AsyncTimeout(); | |
| 995 | |
| 996 public AsyncEventState(ServletContext context, ServletRequest request, ServletResponse response) | |
| 997 { | |
| 998 super(AsyncContinuation.this, request,response); | |
| 999 _suspendedContext=context; | |
| 1000 // Get the base request So we can remember the initial paths | |
| 1001 Request r=_connection.getRequest(); | |
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parents:
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1002 |
| 865 | 1003 // If we haven't been async dispatched before |
| 1004 if (r.getAttribute(AsyncContext.ASYNC_REQUEST_URI)==null) | |
| 1005 { | |
| 1006 // We are setting these attributes during startAsync, when the spec implies that | |
| 1007 // they are only available after a call to AsyncContext.dispatch(...); | |
| 1008 | |
| 1009 // have we been forwarded before? | |
| 1010 String uri=(String)r.getAttribute(RequestDispatcher.FORWARD_REQUEST_URI); | |
| 1011 if (uri!=null) | |
| 1012 { | |
| 1013 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,uri); | |
| 1014 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getAttribute(RequestDispatcher.FORWARD_CONTEXT_PATH)); | |
| 1015 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getAttribute(RequestDispatcher.FORWARD_SERVLET_PATH)); | |
| 1016 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getAttribute(RequestDispatcher.FORWARD_PATH_INFO)); | |
| 1017 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getAttribute(RequestDispatcher.FORWARD_QUERY_STRING)); | |
| 1018 } | |
| 1019 else | |
| 1020 { | |
| 1021 r.setAttribute(AsyncContext.ASYNC_REQUEST_URI,r.getRequestURI()); | |
| 1022 r.setAttribute(AsyncContext.ASYNC_CONTEXT_PATH,r.getContextPath()); | |
| 1023 r.setAttribute(AsyncContext.ASYNC_SERVLET_PATH,r.getServletPath()); | |
| 1024 r.setAttribute(AsyncContext.ASYNC_PATH_INFO,r.getPathInfo()); | |
| 1025 r.setAttribute(AsyncContext.ASYNC_QUERY_STRING,r.getQueryString()); | |
| 1026 } | |
| 1027 } | |
| 1028 } | |
| 1029 | |
| 1030 public ServletContext getSuspendedContext() | |
| 1031 { | |
| 1032 return _suspendedContext; | |
| 1033 } | |
| 1034 | |
| 1035 public ServletContext getDispatchContext() | |
| 1036 { | |
| 1037 return _dispatchContext; | |
| 1038 } | |
| 1039 | |
| 1040 public ServletContext getServletContext() | |
| 1041 { | |
| 1042 return _dispatchContext==null?_suspendedContext:_dispatchContext; | |
| 1043 } | |
| 1044 | |
| 1045 public void setPath(String path) | |
| 1046 { | |
| 1047 _pathInContext=path; | |
| 1048 } | |
| 1049 | |
| 1050 /* ------------------------------------------------------------ */ | |
| 1051 /** | |
| 1052 * @return The path in the context | |
| 1053 */ | |
| 1054 public String getPath() | |
| 1055 { | |
| 1056 return _pathInContext; | |
| 1057 } | |
| 1058 } | |
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parents:
diff
changeset
|
1059 } |