private static HttpResponsePacket CreateResponsePacketFromWrapper(ResponseWrapper wrapper, IRestBusSubscriber subscriber)
{
HttpResponsePacket response = new HttpResponsePacket();
string trimmedKey;
foreach (string key in wrapper.Headers.AllKeys)
{
foreach (string value in wrapper.Headers.GetValues(key))
{
trimmedKey = key.Trim();
if (trimmedKey != String.Empty)
{
if (response.Headers.ContainsKey(trimmedKey))
{
((List <string>)response.Headers[trimmedKey]).Add(value);
}
else
{
response.Headers.Add(trimmedKey, new List <string> {
value
});
}
}
}
}
//TODO: Investigate if servicestack V3 produces a Server header, if so add it here and in CreateResponseFromException
response.Content = (wrapper.OutputStream as System.IO.MemoryStream).ToArray();
response.StatusCode = wrapper.StatusCode;
response.StatusDescription = wrapper.StatusDescription;
response.Version = HTTP_RESPONSE_VERSION;
return(response);
}
private void ProcessRequest(MessageContext context)
{
//NOTE: This method is called on a background thread and must be protected by an outer big-try catch
var httpReq = new RequestWrapper(context.Request);
var httpRes = new ResponseWrapper();
IServiceStackHttpHandler handler = null;
string operationName, contentType;
//var handler = ServiceStackHttpHandlerFactory.GetHandler(httpReq);
var restPath = RestHandler.FindMatchingRestPath(httpReq.HttpMethod, httpReq.PathInfo, out contentType);
if (restPath != null)
{
handler = new RestHandler {
RestPath = restPath, RequestName = restPath.RequestType.Name
};
httpReq.OperationName = operationName = ((RestHandler)handler).RestPath.RequestType.Name;
}
else
{
handler = new NotFoundHttpHandler();
var stream = httpRes.OutputStream; //Bug fix: reading the OutputStream property will cause it to be created if it's null
httpReq.OperationName = operationName = null;
}
HttpResponsePacket resPacket = null;
try
{
handler.ProcessRequest(httpReq, httpRes, operationName);
resPacket = CreateResponsePacketFromWrapper(httpRes, subscriber);
}
catch (Exception exception)
{
//Send Exception details back to Queue
resPacket = CreateResponsePacketFromException(exception);
}
finally
{
httpReq.InputStream.Close();
httpRes.Close();
}
if (resPacket == null)
{
//TODO: Not good, Log this
//TODO: derive exception from RestBus.Exceptions class
resPacket = CreateResponsePacketFromException(new ApplicationException("Unable to get response"));
}
try
{
//TODO: Why can't the subscriber append the subscriber id itself from within sendresponse
subscriber.SendResponse(context, resPacket);
}
catch
{
//TODO: Log SendResponse error
}
}
