private void ExecuteFlowWithReturnWorkerMethod(object param)
{
FlowParams flowParams = param as FlowParams;
string flowID = flowParams.FlowID;
string[] keys = flowParams.Keys;
string[] values = flowParams.Values;
NameValueCollection inputParameters = GenerateInputParameters(flowID, keys, values);
//
// Force insertion of ResponseInBrowser = true
//
string respInBrowser = inputParameters["ResponseInBrowser"];
if (respInBrowser != null)
{
inputParameters.Remove("ResponseInBrowser");
}
inputParameters["ResponseInBrowser"] = "True";
FlowManifest manifest = new FlowManifest();
manifest.RequestInitiated = DateTime.Now;
manifest.InputParameters = inputParameters;
manifest.FlowID = flowID;
manifest.GUID = Guid.NewGuid();
byte[] returnValue = new byte[0];
string msmqPath = ConfigurationManager.AppSettings["DestinationMsmqPath"];
try
{
manifest.FlowStatus = FlowStatus.CompletedGateway;
//
// Send to Retrival.
//
using (MessageQueue mqPublisher = new MessageQueue(msmqPath))
{
mqPublisher.Formatter = new BinaryMessageFormatter();
System.Messaging.Message msgPublisher = new System.Messaging.Message();
msgPublisher.Formatter = new BinaryMessageFormatter();
msgPublisher.Body = manifest.ToXmlDocument().OuterXml;
msgPublisher.Label = string.Format("{0} - {1}", manifest.FlowID, manifest.FlowStatus.ToString());
mqPublisher.Send(msgPublisher);
}
//
// Send message to log.
//
bool bLogToEvents = bool.Parse(ConfigurationManager.AppSettings["LogToEvents"]);
if (bLogToEvents)
{
msmqPath = ConfigurationManager.AppSettings["EventsMsmqPath"];
using (MessageQueue mqLog = new MessageQueue(msmqPath))
{
mqLog.Formatter = new BinaryMessageFormatter();
System.Messaging.Message msgLog = new System.Messaging.Message();
msgLog.Formatter = new BinaryMessageFormatter();
msgLog.Body = manifest.ToXmlDocument().OuterXml;
msgLog.Label = string.Format("{0} - {1}", manifest.FlowID, manifest.FlowStatus.ToString());
mqLog.Send(msgLog);
}
}
// Handle response and return.
ResponseInBrowserHost host = new ResponseInBrowserHost(this.Context, "net.pipe://localhost/CompuFlow.Gateway." + manifest.GUID.ToString());
host.NoHttpContextWrite = true;
host.Start(manifest.GUID);
returnValue = host.ResponseInBrowserData;
}
catch (StackOverflowException)
{
throw;
}
catch (OutOfMemoryException)
{
throw;
}
catch (ThreadAbortException)
{
throw;
}
catch (Exception x)
{
string msg = string.Format("Failure to send message to MSMQ Path: {0}\r\nFlow: {0}.", msmqPath, manifest.GUID.ToString());
ExceptionManager.PublishException(new Exception(msg, x), "Error");
}
flowParams.ReturnValue = returnValue;
flowParams.ResetEvent.Set();
}
/// <summary>
///
/// </summary>
public void ProcessRequest( )
{
try {
//
// Create and read from named pipe.
//
if (this.RequestState.HttpContext.Request.QueryString["guid"] == null)
{
this.RequestState.HttpContext.Response.Write("Missing required parameter: guid");
return;
}
string guidString = this.RequestState.HttpContext.Request.QueryString["guid"];
if (string.IsNullOrEmpty(guidString) || string.IsNullOrWhiteSpace(guidString))
{
this.RequestState.HttpContext.Response.Write("Invalid parameter: guid");
return;
}
Guid guid;
try
{
guid = Guid.Parse(guidString);
}
catch (FormatException)
{
this.RequestState.HttpContext.Response.Write("Invalid format parameter: guid");
return;
}
ResponseInBrowserHost host = new ResponseInBrowserHost(this.RequestState.HttpContext, "net.pipe://localhost/CompuFlow.Gateway." + guid.ToString());
host.Start(guid);
}
catch (OutOfMemoryException) {
throw;
}
catch (StackOverflowException) {
throw;
}
catch (ThreadAbortException) {
throw;
}
catch (Exception x) {
ExceptionManager.PublishException(new Exception("An error occured in ResponseInBrowser handler.", x), "Error");
this.RequestState.HttpContext.Response.ClearHeaders( );
this.RequestState.HttpContext.Response.AddHeader("Content-Type", "text/html");
this.RequestState.HttpContext.Response.Clear( );
this.RequestState.HttpContext.Response.Write("<html>");
this.RequestState.HttpContext.Response.Write("<head><title>ItSoftware - CompuFlow - Exception Information</title></head>");
this.RequestState.HttpContext.Response.Write("<body style=\"font-family:tahoma, verdana;font-size:9pt\">");
this.RequestState.HttpContext.Response.Write("<h3>An error occured in ResponseInBrowser handler.</h3><br><br>Exception information:<br>");
this.RequestState.HttpContext.Response.Write("<textarea cols=80 rows=30 style=\"font-family:tahoma,verdana;font-size:9pt\">");
this.RequestState.HttpContext.Response.Write(Formatter.FormatException(x));
this.RequestState.HttpContext.Response.Write("</textarea>");
this.RequestState.HttpContext.Response.Write("</body>");
this.RequestState.HttpContext.Response.Write("</html>");
this.RequestState.HttpContext.Response.End( );
}
//
// Complete the request.
//
m_asyncRequestState.CompleteRequest( );
}