public void WorkReceive(object state)
{
WcfReceiveResult result = new WcfReceiveResult();
// Create the surrogate
XmlSerializerSurrogate surrogate = new XmlSerializerSurrogate(Formatter);
try
{
// Parse the object
result.MessageIdentifier = MessageId;
result.MessageVersion = (state as Message).Version;
result.Structure = (state as Message).GetBody<IGraphable>(surrogate);
result.Headers = (state as Message).Headers;
result.Details = surrogate.Details;
result.Code = ResultCode.Accepted;
if (result.Details.FirstOrDefault(o => o.Type == ResultDetailType.Error) != null)
result.Code = ResultCode.AcceptedNonConformant;
else if (result.Structure == null)
result.Code = ResultCode.TypeNotAvailable;
}
catch (MessageValidationException e)
{
result.Code = ResultCode.Rejected;
List<IResultDetail> dtl = new List<IResultDetail>(new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) });
dtl.AddRange(surrogate.Details ?? new IResultDetail[0]);
result.Details = dtl.ToArray();
}
catch (FormatException e)
{
result.Code = ResultCode.Rejected;
result.Details = new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) };
}
catch (Exception e)
{
result.Code = ResultCode.Error;
result.Details = new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) };
}
// Set the result
this.ReceiveResult = result;
// Fire completed event
if (Completed != null) Completed(this);
}
public void WorkSend(object state)
{
// Prepare stream
SendResult = new WcfSendResult();
IGraphable data = null;
ReceiveResult = new WcfReceiveResult();
try { data = (IGraphable)state; }
catch { }
// Prepare the serializer surrogate
XmlSerializerSurrogate surrogate = new XmlSerializerSurrogate(Formatter);
try
{
if (data == null)
throw new MessageValidationException("Invalid message structure passed to the connector", data);
// Graph the object
string soapAction = "";
#if WINDOWS_PHONE
SendResult.Message = Message.CreateMessage(MessageVersion, Actions != null && Actions.TryGetValue(state.GetType(), out soapAction) ? soapAction : "none", data, surrogate);
#else
SendResult.Message = Message.CreateMessage(MessageVersion, WcfConfiguration != null && WcfConfiguration.Actions.TryGetValue(state.GetType().FullName, out soapAction) ? soapAction : "none", data, surrogate);
#endif
if(CustomHeaders != null)
SendResult.Message.Headers.CopyHeadersFrom(CustomHeaders);
// Validate
#if !WINDOWS_PHONE
var graphResult = this.Formatter.Graph(new MemoryStream(), data);
SendResult.Code = graphResult.Code;
SendResult.Details = graphResult.Details;
// Did the operation fail?
if (graphResult.Code != ResultCode.Accepted && graphResult.Code != ResultCode.AcceptedNonConformant)
{
if (InvalidMessage != null)
{
MessageEventArgs me = new MessageEventArgs(SendResult.Code, surrogate.Details);
InvalidMessage(this, me);
if (me.Alternate != null)
{
SendResult.Message = Message.CreateMessage(MessageVersion, soapAction, me.Alternate, surrogate);
graphResult = this.Formatter.Graph(new MemoryStream(), data);
SendResult.Code = graphResult.Code;
SendResult.Details = graphResult.Details;
}
}
else
{
SendResult.Details = graphResult.Details;
SendResult.Message = null;
}
}
#endif
}
catch (MessageValidationException e)
{
SendResult.Code = ResultCode.Rejected;
List<IResultDetail> dtl = new List<IResultDetail>(new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) });
dtl.AddRange(surrogate.Details ?? new IResultDetail[0]);
SendResult.Details = dtl.ToArray();
}
catch (FormatException e)
{
SendResult.Code = ResultCode.Rejected;
SendResult.Details = new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) };
}
catch (Exception e)
{
SendResult.Code = ResultCode.Error;
SendResult.Details = new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) };
}
finally
{
}
// Fire completed event
if (Completed != null) Completed(this);
}
public void WorkSend(object state)
{
// Prepare stream
WcfSendResult result = new WcfSendResult();
IGraphable data = (IGraphable)state;
// Create the surrogate
XmlSerializerSurrogate surrogate = new XmlSerializerSurrogate(Formatter);
try
{
// Graph the object
result.Message = Message.CreateMessage(MessageVersion, "", data, surrogate);
result.MessageId = this.MessageId;
result.Headers = this.ResponseHeaders;
// Validate
surrogate.WriteObject(new MemoryStream(), data);
result.Code = surrogate.ResultCode;
result.Details = surrogate.Details;
if ((result.Code != ResultCode.Accepted && result.Code != ResultCode.AcceptedNonConformant)
&& InvalidResponse != null)
{
MessageEventArgs mea = new MessageEventArgs(result.Code, result.Details);
InvalidResponse(this, mea);
InvalidResponse = null; // Don't call retry again! NOTE: This is a single use class.
if (mea.Alternate != null)
{ // An alternate was suggested
if (Formatter is IValidatingStructureFormatter) // Turn of validation for fallback
(Formatter as IValidatingStructureFormatter).ValidateConformance = false;
WorkSend(mea.Alternate);
}
return;
}
// Did the operation succeed?
if (result.Code != ResultCode.Accepted && result.Code != ResultCode.AcceptedNonConformant)
{
result.Details = surrogate.Details;
result.Message = null;
}
}
catch (MessageValidationException e)
{
result.Code = ResultCode.Rejected;
List<IResultDetail> dtl = new List<IResultDetail>(new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) });
dtl.AddRange(surrogate.Details ?? new IResultDetail[0]);
result.Details = dtl.ToArray();
}
catch (FormatException e)
{
result.Code = ResultCode.Rejected;
result.Details = new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) };
}
catch (Exception e)
{
result.Code = ResultCode.Error;
result.Details = new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) };
}
finally
{
// Set the result
this.SendResult = result;
// Fire completed event
if (Completed != null) Completed(this);
}
}
public System.ServiceModel.Channels.Message ProcessInboundMessage(System.ServiceModel.Channels.Message m)
{
#if DEBUG
Trace.TraceInformation("Received message on transport...");
#endif
if (ListenConnector == null && OperationContext.Current.Host is WcfServiceHost)
ListenConnector = (OperationContext.Current.Host as WcfServiceHost).ConnectorHost;
if (ListenConnector != null) // In process
{
// Is this channel one way or two way?
if (!(OperationContext.Current.Channel is IOutputChannel)) // Input only
return null;
#if DEBUG
Trace.TraceInformation("Message handoff to WcfServerConnector completed");
#endif
WcfSendResult processResult = ListenConnector.ProcessMessage(m);
Message retVal = null;
// There is an error, so the return value must be a fault!
if (processResult == null || processResult.Code != ResultCode.Accepted && processResult.Code != ResultCode.AcceptedNonConformant)
{
// Web based context?
if (WebOperationContext.Current != null)
{
WebOperationContext.Current.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.InternalServerError;
WebOperationContext.Current.OutgoingResponse.StatusDescription = "Internal Server Error";
}
List<String> details = new List<string>();
if (processResult != null)
{
details = new List<String>();
foreach(var dtl in processResult.Details)
details.Add(dtl.Message); // Append details
}
if (processResult == null)
retVal = Message.CreateMessage(m.Version, MessageFault.CreateFault(FaultCode.CreateReceiverFaultCode(processResult.Code.ToString(), "http://marc.mohawkcollege.ca/hi"), new FaultReason("The receiver has constructed an invalid response that cannot be sent to the sender"), details), m.Headers.Action);
else
retVal = Message.CreateMessage(m.Version, MessageFault.CreateFault(FaultCode.CreateSenderFaultCode("EPIC", "http://marc.mohawkcollege.ca/hi"), new FaultReason("Catastrophic failure occurred in the WcfServer send pipeline. This usually occurs when the connector does not receive a message in the allocated amount of time"), details), m.Headers.Action);
}
else
{
retVal = processResult.Message;
if (processResult.Headers != null)
{
retVal.Headers.Clear();
retVal.Headers.CopyHeadersFrom(processResult.Headers);
}
}
#if DEBUG
Trace.TraceInformation("Message sent to client");
#endif
return retVal;
}
else
{
// Get settings
if(settings == null) settings = System.Web.Configuration.WebConfigurationManager.GetSection("marc.everest.connectors.wcf") as MARC.Everest.Connectors.WCF.Configuration.ConfigurationSection;
// Now format the message and pass it on ...
MemoryStream ms = new MemoryStream();
System.Xml.XmlWriter xw = System.Xml.XmlWriter.Create(ms); // Write to message memory stream for classification matching
m.WriteMessage(xw);
xw.Flush(); // Flush the Xml Writer
ms.Seek(0, SeekOrigin.Begin); // Seek to start
XPathDocument xpd = new XPathDocument(ms); // load xpath document
XPathNavigator xpn = xpd.CreateNavigator();
IMessageReceiver receiver = null; // The receiver to use
// Determine the receiver
foreach (KeyValuePair<String, IMessageReceiver> kv in settings.Receiver)
if (xpn.SelectSingleNode(kv.Key) != null)
{
receiver = kv.Value;
break;
}
// Was a receiver found?
if (receiver == null)
{
// Create a not implemented exception
if(WebOperationContext.Current != null)
WebOperationContext.Current.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.NotImplemented;
return Message.CreateMessage(m.Version, MessageFault.CreateFault(FaultCode.CreateSenderFaultCode(
"NotImplemented", "http://marc.mohawkcollege.ca/hi"), new FaultReason("No receiver understands the request message.")),
m.Headers.Action);
}
// Create a streams for deserialization
ms = new MemoryStream();
XmlWriterSettings xws = new XmlWriterSettings();
xws.Indent = true;
xw = XmlWriter.Create(ms, xws);
// Deserialize body
WcfReceiveResult rcv = new WcfReceiveResult();
try
{
// Because of classification, we need to process this in a wierd way,
// Basically the formatter will classify the message based on the root element name
// it receives. Because a SOAP message's root isn't what we really want to process,
// the first child node under the 'body' must be passed to the xml writer
xpn.SelectSingleNode("//*[local-name() = 'Body']/child::node()").WriteSubtree(xw);
xw.Flush();
ms.Seek(0, SeekOrigin.Begin);
var serResult = settings.Formatter.Parse(ms);
rcv.Structure = serResult.Structure;
rcv.Details = serResult.Details;
if (rcv.Details.Count() == 0)
rcv.Code = ResultCode.Accepted;
else
rcv.Code = ResultCode.AcceptedNonConformant;
}
catch (Exception e)
{
rcv.Code = ResultCode.Error;
rcv.Details = new IResultDetail[] { new ResultDetail(ResultDetailType.Error, e.Message, e) };
}
// Process on the receiver
IGraphable obj = receiver.MessageReceived(rcv.Structure, rcv.Code, rcv.Details);
// Graph this back
XmlSerializerSurrogate surrogate = new XmlSerializerSurrogate((IXmlStructureFormatter)settings.Formatter);
// Serialize the response
Message result = Message.CreateMessage(m.Version, m.Headers.Action, obj, surrogate);
// Validate
surrogate.WriteObject(new MemoryStream(), obj);
// Surrogate result code is acceptable?
if (surrogate.ResultCode != ResultCode.Accepted && surrogate.ResultCode != ResultCode.AcceptedNonConformant)
{
if (WebOperationContext.Current != null)
{
WebOperationContext.Current.OutgoingResponse.StatusCode = System.Net.HttpStatusCode.InternalServerError;
WebOperationContext.Current.OutgoingResponse.StatusDescription = "Internal Server Error";
}
List<string> details = new List<String>();
foreach(var itm in surrogate.Details)
details.Add(itm.Message); // Append details
return Message.CreateMessage(m.Version, MessageFault.CreateFault(FaultCode.CreateReceiverFaultCode(surrogate.ResultCode.ToString(), "http://marc.mohawkcollege.ca/hi"), new FaultReason("The receiver has constructed an invalid response that cannot be returned to the sender"), details), m.Headers.Action);
}
else
return result;
}
}
