public void ProcessRequest(PiccoloContext context)
{
string payload = null;
try
{
var stopRequestProcessing = _eventDispatcher.RaiseRequestProcessingEvent(context);
if (stopRequestProcessing)
{
return;
}
var lookupResult = _requestRouter.FindRequestHandler(context.RequestVerb, context.ApplicationPath, context.RequestUri);
if (lookupResult.IsSuccessful)
{
var requestHandler = _configuration.ObjectFactory.CreateInstance <IRequestHandler>(lookupResult.RequestHandlerType);
var requestPayload = _payloadDeserialiser.DeserialisePayload(requestHandler, context.RequestVerb, context.RequestPayload);
if (requestPayload != null)
{
string errorMessage;
if ((errorMessage = _payloadValidatorInvoker.ValidatePayload(lookupResult.RequestHandlerType, context.RequestVerb, requestPayload)) != null)
{
InjectResponse(context, HttpStatusCode.BadRequest, "Bad Request", null, errorMessage);
return;
}
}
var responseMessage = _requestHandlerInvoker.Execute(requestHandler, context.RequestVerb, lookupResult.RouteParameters, context.RequestQueryParameters, context.Data, requestPayload);
payload = SerialisePayload(responseMessage.Content);
InjectResponse(context, responseMessage.StatusCode, responseMessage.ReasonPhrase, responseMessage.Headers.Location, payload);
}
else
{
var responseMessage = new HttpResponseMessage(HttpStatusCode.NotFound);
InjectResponse(context, responseMessage.StatusCode, responseMessage.ReasonPhrase, null, null);
}
}
catch (RouteParameterDatatypeMismatchException rpdmex)
{
_eventDispatcher.RaiseRequestFaultedEvent(context, rpdmex);
var responseMessage = new HttpResponseMessage(HttpStatusCode.NotFound);
if (context.Http.IsDebuggingEnabled)
{
payload = SerialisePayload(new ObjectContent(rpdmex));
}
InjectResponse(context, responseMessage.StatusCode, responseMessage.ReasonPhrase, null, payload);
}
catch (MalformedParameterException mpex)
{
_eventDispatcher.RaiseRequestFaultedEvent(context, mpex);
var responseMessage = new HttpResponseMessage(HttpStatusCode.BadRequest);
if (context.Http.IsDebuggingEnabled)
{
payload = SerialisePayload(new ObjectContent(mpex));
}
InjectResponse(context, responseMessage.StatusCode, responseMessage.ReasonPhrase, null, payload);
}
catch (MissingPayloadException mpex)
{
_eventDispatcher.RaiseRequestFaultedEvent(context, mpex);
var responseMessage = new HttpResponseMessage(HttpStatusCode.BadRequest);
payload = SerialisePayload(new ObjectContent(new { error = "Payload missing" }));
InjectResponse(context, responseMessage.StatusCode, responseMessage.ReasonPhrase, null, payload);
}
catch (MalformedPayloadException mpex)
{
_eventDispatcher.RaiseRequestFaultedEvent(context, mpex);
if (context.Http.IsDebuggingEnabled)
{
payload = SerialisePayload(new ObjectContent(mpex));
}
InjectResponse(context, (HttpStatusCode)422, "Unprocessable Entity", null, payload);
}
catch (Exception ex)
{
_eventDispatcher.RaiseRequestFaultedEvent(context, ex);
var responseMessage = new HttpResponseMessage(HttpStatusCode.InternalServerError);
if (context.Http.IsDebuggingEnabled)
{
payload = SerialisePayload(new ObjectContent(ex));
}
InjectResponse(context, responseMessage.StatusCode, responseMessage.ReasonPhrase, null, payload);
}
finally
{
_eventDispatcher.RaiseRequestProcessedEvent(context, payload);
}
}