程序包 cn.taketoday.web.context.async

类 TimeoutAsyncProcessingInterceptor

java.lang.Object

cn.taketoday.web.context.async.TimeoutAsyncProcessingInterceptor

所有已实现的接口:

CallableProcessingInterceptor, DeferredResultProcessingInterceptor

public class TimeoutAsyncProcessingInterceptor
extends Object
implements CallableProcessingInterceptor, DeferredResultProcessingInterceptor

Sends a 503 (SERVICE_UNAVAILABLE) in case of a timeout if the response is not already committed. this is done indirectly by setting the result to an AsyncRequestTimeoutException which is then handled by MVC's default exception handling as a 503 error.

Registered at the end, after all other interceptors and therefore invoked only if no other interceptor handles the timeout.

Note that according to RFC 7231, a 503 without a 'Retry-After' header is interpreted as a 500 error and the client should not retry. Applications can install their own interceptor to handle a timeout and add a 'Retry-After' header if necessary.

从以下版本开始:

4.0

作者:

Rossen Stoyanchev, Harry Yang

字段概要

从接口继承的字段 cn.taketoday.web.context.async.CallableProcessingInterceptor

RESPONSE_HANDLED, RESULT_NONE

构造器概要

构造器

构造器	说明
TimeoutAsyncProcessingInterceptor()

方法概要

修饰符和类型	方法	说明
<T> boolean	handleTimeout(RequestContext request, DeferredResult<T> result)	Invoked from a container thread when an async request times out before the DeferredResult has been set.
<T> Object	handleTimeout(RequestContext request, Callable<T> task)	Invoked from a container thread when the async request times out before the Callable task completes.

从类继承的方法 java.lang.Object

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

从接口继承的方法 cn.taketoday.web.context.async.CallableProcessingInterceptor

afterCompletion, beforeConcurrentHandling, handleError, postProcess, preProcess

从接口继承的方法 cn.taketoday.web.context.async.DeferredResultProcessingInterceptor

afterCompletion, beforeConcurrentHandling, handleError, postProcess, preProcess

构造器详细资料

TimeoutAsyncProcessingInterceptor

public TimeoutAsyncProcessingInterceptor()

方法详细资料

handleTimeout

public <T> Object handleTimeout(RequestContext request,
 Callable<T> task)

从接口复制的说明: CallableProcessingInterceptor

Invoked from a container thread when the async request times out before the Callable task completes. Implementations may return a value, including an Exception, to use instead of the value the Callable did not return in time.

The default implementation always returns CallableProcessingInterceptor.RESULT_NONE.

指定者:

handleTimeout 在接口中 CallableProcessingInterceptor

参数:

request - the current request

task - the task for the current async request

返回:

a concurrent result value; if the value is anything other than CallableProcessingInterceptor.RESULT_NONE or CallableProcessingInterceptor.RESPONSE_HANDLED, concurrent processing is resumed and subsequent interceptors are not invoked

handleTimeout

public <T> boolean handleTimeout(RequestContext request,
 DeferredResult<T> result)

从接口复制的说明: DeferredResultProcessingInterceptor

Invoked from a container thread when an async request times out before the DeferredResult has been set. Implementations may invoke setResult or setErrorResult to resume processing.

指定者:

handleTimeout 在接口中 DeferredResultProcessingInterceptor

参数:

request - the current request

result - the DeferredResult for the current request; if the DeferredResult is set, then concurrent processing is resumed and subsequent interceptors are not invoked

返回:

true if processing should continue, or false if other interceptors should not be invoked