/// <summary>
/// Generates a http response based on the specified <see cref="response"/> object and send it to the client
/// </summary>
/// <param name="response"></param>
/// <param name="context"></param>
private static void SendWADOResponse(WADOResponse response, HttpListenerContext context)
{
context.Response.StatusCode = (int)HttpStatusCode.OK; // TODO: what does http protocol say about how error that occurs after OK status has been sent should be handled?
context.Response.ContentType = response.ContentType;
if (response.Output == null)
{
context.Response.ContentLength64 = 0;
}
else
{
context.Response.ContentLength64 = response.Output.Length;
Stream output = context.Response.OutputStream;
output.Write(response.Output, 0, response.Output.Length);
}
}
private static void HandleRequest(HttpListenerContext context)
{
WADORequestProcessorStatistics statistics;
if (Platform.IsLogLevelEnabled(LogLevel.Debug))
{
statistics = new WADORequestProcessorStatistics("Image Streaming");
statistics.TotalProcessTime.Start();
//Don't hold up this thread for logging.
Task.Factory.StartNew(() => LogRequest(context));
}
else
{
statistics = null;
}
try
{
using (WADORequestTypeHandlerManager handlerManager = new WADORequestTypeHandlerManager())
{
string requestType = context.Request.QueryString["requestType"];
IWADORequestTypeHandler typeHandler = handlerManager.GetHandler(requestType);
WADORequestTypeHandlerContext ctx = new WADORequestTypeHandlerContext
{
HttpContext = context,
ServerAE = UriHelper.GetServerAE(context)
};
using (WADOResponse response = typeHandler.Process(ctx))
{
if (response != null)
{
if (statistics != null)
{
statistics.TransmissionSpeed.Start();
}
SendWADOResponse(response, context);
if (statistics != null)
{
statistics.TransmissionSpeed.End();
}
if (statistics != null && response.Output != null)
{
statistics.TransmissionSpeed.SetData(response.Output.Length);
}
}
}
}
}
catch (MimeTypeProcessorError error)
{
SendError(error.HttpError, context);
}
if (statistics != null)
{
statistics.TotalProcessTime.End();
}
//Seems like something you'd only want to log if there was a problem.
if (Platform.IsLogLevelEnabled(LogLevel.Debug))
{
//Don't hold up this thread for logging.
Task.Factory.StartNew(() => StatisticsLogger.Log(LogLevel.Debug, statistics));
}
}
