org.jboss.resteasy.core
Class SynchronousExecutionContext.SynchronousAsynchronousResponse

java.lang.Object
  org.jboss.resteasy.core.AbstractAsynchronousResponse
      org.jboss.resteasy.core.SynchronousExecutionContext.SynchronousAsynchronousResponse

All Implemented Interfaces:

AsyncResponse, ResteasyAsynchronousResponse

Enclosing class:

SynchronousExecutionContext

protected class SynchronousExecutionContext.SynchronousAsynchronousResponse
extends AbstractAsynchronousResponse

Field Summary

protected boolean

cancelled

Fields inherited from class org.jboss.resteasy.core.AbstractAsynchronousResponse

annotations, completionCallbacks, dispatcher, method, request, response, responseFilters, timeoutHandler, writerInterceptors

Fields inherited from interface javax.ws.rs.container.AsyncResponse

NO_TIMEOUT

Constructor Summary

SynchronousExecutionContext.SynchronousAsynchronousResponse(SynchronousDispatcher dispatcher, HttpRequest request, HttpResponse response)

Method Summary

boolean	cancel() Cancel the suspended request processing.
boolean	cancel(Date retryAfter) Cancel the suspended request processing.
boolean	cancel(int retryAfter) Cancel the suspended request processing.
void	initialRequestThreadFinished() Callback by the initial http request thread.
boolean	isCancelled() Check if the asynchronous response instance has been cancelled.
boolean	isDone() Check if the processing of a request this asynchronous response instance belongs to has finished.
boolean	isSuspended() Check if the asynchronous response instance is in a suspended state.
boolean	resume(Object entity) Resume the suspended request processing using the provided response data.
boolean	resume(Throwable exc) Resume the suspended request processing using the provided throwable.
boolean	setTimeout(long time, TimeUnit unit) Set/update the suspend timeout.

Methods inherited from class org.jboss.resteasy.core.AbstractAsynchronousResponse

completionCallbacks, getAnnotations, getMethod, getResponseFilters, getWriterInterceptors, internalResume, internalResume, register, register, register, register, setAnnotations, setMethod, setResponseFilters, setTimeoutHandler, setWriterInterceptors

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

cancelled

protected boolean cancelled

Constructor Detail

SynchronousExecutionContext.SynchronousAsynchronousResponse

public SynchronousExecutionContext.SynchronousAsynchronousResponse(SynchronousDispatcher dispatcher,
                                                                   HttpRequest request,
                                                                   HttpResponse response)

Method Detail

resume

public boolean resume(Object entity)

Description copied from interface: AsyncResponse

Resume the suspended request processing using the provided response data. The provided response data can be of any Java type that can be returned from a JAX-RS resource method.

The asynchronous response must be still in a suspended state for this method to succeed.

By executing this method, the request is guaranteed to complete either successfully or with an error. The data processing by the JAX-RS runtime follows the same path as it would for the response data returned synchronously by a JAX-RS resource, except that unmapped exceptions are not re-thrown by JAX-RS runtime to be handled by a hosting I/O container. Instead, any unmapped exceptions are propagated to the hosting I/O container via a container-specific callback mechanism. Depending on the container implementation, propagated unmapped exceptions typically result in an error status being sent to the client and/or the connection being closed.

Parameters:

entity - data to be sent back in response to the suspended request.

Returns:

true if the request processing has been resumed, returns false in case the request processing is not suspended and could not be resumed.

See Also:

AsyncResponse.resume(Throwable)

resume

public boolean resume(Throwable exc)
               throws IllegalStateException

Description copied from interface: AsyncResponse

Resume the suspended request processing using the provided throwable. For the provided throwable same rules apply as for an exception thrown by a JAX-RS resource method.

By executing this method, the request is guaranteed to complete either successfully or with an error. The throwable processing by the JAX-RS runtime follows the same path as it would for the response data returned synchronously by a JAX-RS resource, except that unmapped exceptions are not re-thrown by JAX-RS runtime to be handled by a hosting I/O container. Instead, any unmapped exceptions are propagated to the hosting I/O container via a container-specific callback mechanism. Depending on the container implementation, propagated unmapped exceptions typically result in an error status being sent to the client and/or the connection being closed.

Parameters:

exc - an exception to be raised in response to the suspended request.

Returns:

true if the response has been resumed, returns false in case the response is not suspended and could not be resumed.

Throws:

IllegalStateException

See Also:

AsyncResponse.resume(Object)

initialRequestThreadFinished

public void initialRequestThreadFinished()

Description copied from interface: ResteasyAsynchronousResponse

Callback by the initial http request thread. It is used to help simulate suspend/resume asynchronous semantics in containers that do not support asychronous HTTP. This method is a no-op in environments that support async HTTP.

setTimeout

public boolean setTimeout(long time,
                          TimeUnit unit)
                   throws IllegalStateException

Description copied from interface: AsyncResponse

Set/update the suspend timeout.

The new suspend timeout values override any timeout value previously specified. The asynchronous response must be still in a suspended state for this method to succeed.

Parameters:

time - suspend timeout value in the give time unit. Value lower or equal to 0 causes the context to suspend indefinitely.

unit - suspend timeout value time unit.

Returns:

true if the suspend time out has been set, returns false in case the request processing is not in the suspended state.

Throws:

IllegalStateException

cancel

public boolean cancel()

Description copied from interface: AsyncResponse

Cancel the suspended request processing.

When a request processing is cancelled using this method, the JAX-RS implementation MUST indicate to the client that the request processing has been cancelled by sending back a HTTP 503 (Service unavailable) error response.

Invoking a cancel(...) method multiple times to cancel request processing has the same effect as canceling the request processing only once. Invoking a cancel(...) method on an asynchronous response instance that has already been cancelled or resumed has no effect and the method call is ignored while returning true, in case the request has been cancelled previously. Otherwise, in case the request has been resumed regularly (using a resume(...) method) or resumed due to a time-out, method returns false.

Returns:

true if the request processing has been cancelled, returns false in case the request processing is not suspended and could not be cancelled and is not cancelled already.

See Also:

AsyncResponse.cancel(int), AsyncResponse.cancel(java.util.Date)

cancel

public boolean cancel(int retryAfter)

Description copied from interface: AsyncResponse

Cancel the suspended request processing.

When a request processing is cancelled using this method, the JAX-RS implementation MUST indicate to the client that the request processing has been cancelled by sending back a HTTP 503 (Service unavailable) error response with a Retry-After header set to the value provided by the method parameter.

Invoking a cancel(...) method multiple times to cancel request processing has the same effect as canceling the request processing only once. Invoking a cancel(...) method on an asynchronous response instance that has already been cancelled or resumed has no effect and the method call is ignored while returning true, in case the request has been cancelled previously. Otherwise, in case the request has been resumed regularly (using a resume(...) method) or resumed due to a time-out, method returns false.

Parameters:

retryAfter - a decimal integer number of seconds after the response is sent to the client that indicates how long the service is expected to be unavailable to the requesting client.

Returns:

true if the request processing has been cancelled, returns false in case the request processing is not suspended and could not be cancelled and is not cancelled already.

See Also:

AsyncResponse.cancel(), AsyncResponse.cancel(java.util.Date)

cancel

public boolean cancel(Date retryAfter)

Description copied from interface: AsyncResponse

Cancel the suspended request processing.

When a request processing is cancelled using this method, the JAX-RS implementation MUST indicate to the client that the request processing has been cancelled by sending back a HTTP 503 (Service unavailable) error response with a Retry-After header set to the value provided by the method parameter.

Invoking a cancel(...) method multiple times to cancel request processing has the same effect as canceling the request processing only once. Invoking a cancel(...) method on an asynchronous response instance that has already been cancelled or resumed has no effect and the method call is ignored while returning true, in case the request has been cancelled previously. Otherwise, in case the request has been resumed regularly (using a resume(...) method) or resumed due to a time-out, method returns false.

Parameters:

retryAfter - a date that indicates how long the service is expected to be unavailable to the requesting client.

Returns:

true if the request processing has been cancelled, returns false in case the request processing is not suspended and could not be cancelled and is not cancelled already.

See Also:

AsyncResponse.cancel(), AsyncResponse.cancel(int)

isSuspended

public boolean isSuspended()

Description copied from interface: AsyncResponse

Check if the asynchronous response instance is in a suspended state. Method returns true if this asynchronous response is still suspended and has not finished processing yet (either by resuming or canceling the response).

Returns:

true if this asynchronous response is in a suspend state, false otherwise.

See Also:

AsyncResponse.isCancelled(), AsyncResponse.isDone()

isCancelled

public boolean isCancelled()

Description copied from interface: AsyncResponse

Check if the asynchronous response instance has been cancelled. Method returns true if this asynchronous response has been canceled before completion.

Returns:

true if this task was canceled before completion.

See Also:

AsyncResponse.isSuspended(), AsyncResponse.isDone()

isDone

public boolean isDone()

Description copied from interface: AsyncResponse

Check if the processing of a request this asynchronous response instance belongs to has finished. Method returns true if the processing of a request this asynchronous response is bound to is finished.

The request processing may be finished due to a normal termination, a suspend timeout, or cancellation -- in all of these cases, this method will return true.

Returns:

true if this execution context has finished processing.

See Also:

AsyncResponse.isSuspended(), AsyncResponse.isCancelled()