TimeoutDeferredResultProcessingInterceptor (Spring Framework 5.2.12.RELEASE API)

java.lang.Object
- org.springframework.web.context.request.async.TimeoutDeferredResultProcessingInterceptor

All Implemented Interfaces:
DeferredResultProcessingInterceptor
```
public class TimeoutDeferredResultProcessingInterceptor
extends Object
implements DeferredResultProcessingInterceptor
```
Sends a 503 (SERVICE_UNAVAILABLE) in case of a timeout if the response is not already committed. As of 4.2.8 this is done indirectly by returning AsyncRequestTimeoutException as the result of processing which is then handled by Spring 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.
Since:
3.2
Author:
Rossen Stoyanchev

Constructor Summary
Constructors
Constructor Description
TimeoutDeferredResultProcessingInterceptor()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T> boolean`	`handleTimeout(NativeWebRequest request, DeferredResult<T> result)`	Invoked from a container thread when an async request times out before the `DeferredResult` has been set.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.springframework.web.context.request.async.DeferredResultProcessingInterceptor
afterCompletion, beforeConcurrentHandling, handleError, postProcess, preProcess

- Constructor Detail
  - TimeoutDeferredResultProcessingInterceptor
```
public TimeoutDeferredResultProcessingInterceptor()
```
- Method Detail
  - handleTimeout
```
public <T> boolean handleTimeout(NativeWebRequest request,
                                 DeferredResult<T> result)
                          throws Exception
```
    Description copied from interface: 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.
    Specified by:
    handleTimeout in interface DeferredResultProcessingInterceptor
    Parameters:
    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
    Returns:
    true if processing should continue, or false if other interceptors should not be invoked
    Throws:
    Exception - in case of errors