com.amazonaws.handlers

Interface IRequestHandler2

All Known Implementing Classes:

CredentialsRequestHandler, RequestHandler2, StackedRequestHandler, SwitchToPostHandler

public interface IRequestHandler2

Interface for RequestHandler2. Do not use this outside the core SDK. We can and will add methods to this interface in the future. Extends RequestHandler2 to implement a custom request handler.

Method Summary

Modifier and Type	Method and Description
void	afterError(Request<?> request, Response<?> response, Exception e) Runs any additional processing logic on a request after it has failed.
void	afterResponse(Request<?> request, Response<?> response) Runs any additional processing logic on the specified request (after is has been executed by the client runtime).
AmazonWebServiceRequest	beforeMarshalling(AmazonWebServiceRequest request) Runs any additional processing logic on the specified request object before it is marshaled into an HTTP request.
void	beforeRequest(Request<?> request) Runs any additional processing logic on the specified request (before it is executed by the client runtime).
HttpResponse	beforeUnmarshalling(Request<?> request, HttpResponse httpResponse) Runs any additional processing logic on the specified response before it's unmarshalled.

Method Detail

beforeMarshalling

AmazonWebServiceRequest beforeMarshalling(AmazonWebServiceRequest request)

Runs any additional processing logic on the specified request object before it is marshaled into an HTTP request.

If you're going to modify the request, make sure to clone it first, modify the clone, and return it from this method. Otherwise your changes will leak out to the user, who might reuse the request object without realizing that it was modified as part of sending it the first time.

Parameters:

request - the request passed in by the user

Returns:

the (possibly different) request to marshal

beforeRequest

void beforeRequest(Request<?> request)

Runs any additional processing logic on the specified request (before it is executed by the client runtime).

Parameters:

request - The low level request being processed.

beforeUnmarshalling

HttpResponse beforeUnmarshalling(Request<?> request,
                                 HttpResponse httpResponse)

Runs any additional processing logic on the specified response before it's unmarshalled. This callback is only invoked on successful responses that will be unmarsahlled into an appropriate modeled class and not for unsuccessful responses that will be unmarshalled into a subclass of AmazonServiceException

Parameters:

request - The low level request being processed.

httpResponse - The Raw HTTP response before being unmarshalled

Returns:

HttpResponse to replace the actual response. May be a mutated version of the original or a completely new HttpResponse object

afterResponse

void afterResponse(Request<?> request,
                   Response<?> response)

Runs any additional processing logic on the specified request (after is has been executed by the client runtime).

Parameters:

request - The low level request being processed.

response - The response generated from the specified request.

afterError

void afterError(Request<?> request,
                Response<?> response,
                Exception e)

Runs any additional processing logic on a request after it has failed.

Parameters:

request - The request that generated an error.

response - the response or null if the failure occurred before the response is made available

e - The error that resulted from executing the request.