/**
* Executes the request and returns the result.
*
* @param request The AmazonWebServices request to send to the remote server
* @param responseHandler A response handler to accept a successful response from the remote
* server
* @param errorResponseHandler A response handler to accept an unsuccessful response from the
* remote server
* @param executionContext Additional information about the context of this web service call
*/
public <T> T execute(
Request<?> request,
HttpResponseHandler<AmazonWebServiceResponse<T>> responseHandler,
HttpResponseHandler<AmazonServiceException> errorResponseHandler,
ExecutionContext executionContext)
throws AmazonClientException, AmazonServiceException {
long startTime = System.currentTimeMillis();
if (executionContext == null)
throw new AmazonClientException(
"Internal SDK Error: No execution context parameter specified.");
List<RequestHandler> requestHandlers = executionContext.getRequestHandlers();
if (requestHandlers == null) requestHandlers = new ArrayList<RequestHandler>();
// Apply any additional service specific request handlers that need to be run
for (RequestHandler requestHandler : requestHandlers) {
requestHandler.beforeRequest(request);
}
try {
TimingInfo timingInfo = new TimingInfo(startTime);
executionContext.setTimingInfo(timingInfo);
T t = executeHelper(request, responseHandler, errorResponseHandler, executionContext);
timingInfo.setEndTime(System.currentTimeMillis());
for (RequestHandler handler : requestHandlers) {
try {
handler.afterResponse(request, t, timingInfo);
} catch (ClassCastException cce) {
}
}
return t;
} catch (AmazonClientException e) {
for (RequestHandler handler : requestHandlers) {
handler.afterError(request, e);
}
throw e;
}
}
