/// <summary>
///
/// </summary>
public void ProcessMessage(IMessage requestMessage, ITransportHeaders requestHeaders, Stream requestStream,
out ITransportHeaders responseHeaders, out Stream responseStream)
{
object returnValue = null;
responseHeaders = null;
responseStream = new MemoryStream();
IMessage responseMsg = null;
IMethodCallMessage mcm = requestMessage as IMethodCallMessage;
BinaryFormatter bf = new BinaryFormatter();
try
{
if (_endpoint.StartsWith(WorkflowDefaults.WorkflowLocalhost))
{
#region Invoke local Workflow
LogicalWorkflowContext lwc = LCC.LogicalWorkflowContext;
Guid workflowInstanceId = lwc.GetAndClearWorkflowId();
bool bGetWorkflowById = !workflowInstanceId.Equals(Guid.Empty);
// create workflow
Invoker invoker = null;
if (bGetWorkflowById)
{
invoker = WorkflowInvoker.Create(workflowInstanceId);
}
else
{
string endpoint = _endpoint.Replace(WorkflowDefaults.WorkflowLocalhost, "").Trim('/');
Type workflowType = RemotingServices.GetServerTypeForUri(endpoint);
invoker = WorkflowInvoker.Create(workflowType, lwc.WorkflowInitData);
}
// send remoting message
invoker.SendMessage(mcm);
// handle response
if (RemotingServices.IsOneWay(mcm.MethodBase) == false)
{
invoker.WaitForResponse(_Sender.TimeOut);
returnValue = invoker.GetResponse <object>();
}
#endregion
}
else if (_endpoint.StartsWith(WorkflowDefaults.WorkflowByWCF))
{
#region Invoke remote Workflow by WCF
try
{
string endpoint = _endpoint.Replace(WorkflowDefaults.WorkflowByWCF, "").Trim('/');
using (ChannelFactory2 factory = new ChannelFactory2(Type.GetType(mcm.TypeName), endpoint))
{
object tp = factory.CreateChannel();
using (OperationContextScope scope = new OperationContextScope(tp as IContextChannel))
{
// CallContext over the loosely coupled contract (LogicalWorkflowContext and Unknown)
object lwc = LCC.GetLogicalWorkflowContext;
if (lwc != null)
{
MessageHeader header = MessageHeader.CreateHeader("LogicalWorkflowContext", "RKiss.WorkflowRemoting", lwc, false, "WorkflowRemoting");
OperationContext.Current.OutgoingMessageHeaders.Add(header);
}
if (!string.IsNullOrEmpty(Sender.CallContextActor))
{
IDictionaryEnumerator enumerator = LCC.GetDataContract().GetEnumerator();
while (enumerator.MoveNext())
{
// skip it
if (enumerator.Value is LogicalWorkflowContext)
{
continue;
}
DataContractAttribute dca = enumerator.Key as DataContractAttribute;
MessageHeader header = MessageHeader.CreateHeader(dca.Name, dca.Namespace, enumerator.Value, false, Sender.CallContextActor);
OperationContext.Current.OutgoingMessageHeaders.Add(header);
}
}
// action
returnValue = factory.InvokeMethod(mcm.MethodName, mcm.Args);
}
factory.Close();
}
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
catch (Exception ex)
{
throw ex;
}
#endregion
}
else
{
throw new InvalidOperationException("No supported schema");
}
// return value
responseMsg = (IMessage) new ReturnMessage(returnValue, null, 0, null, mcm);
}
catch (System.ServiceModel.FaultException fe)
{
Exception ex = new Exception(fe.Message);
ex.GetType().InvokeMember("_stackTraceString", BindingFlags.SetField | BindingFlags.NonPublic | BindingFlags.Instance, null, ex, new object[] { fe.ToString() });
responseMsg = new ReturnMessage(ex, mcm);
}
catch (Exception ex)
{
responseMsg = new ReturnMessage(ex, mcm);
}
finally
{
#region serialize IMessage response to return back
bf.Serialize(responseStream, responseMsg);
responseStream.Position = 0;
responseHeaders = requestHeaders;
#endregion
}
}
/// <summary>
///
/// </summary>
public void ProcessMessage(IMessage requestMessage, ITransportHeaders requestHeaders, Stream requestStream,
out ITransportHeaders responseHeaders, out Stream responseStream)
{
object returnValue = null;
responseHeaders = null;
responseStream = new MemoryStream();
IMessage responseMsg = null;
IMethodCallMessage mcm = requestMessage as IMethodCallMessage;
BinaryFormatter bf = new BinaryFormatter();
try
{
if (_endpoint.StartsWith(WorkflowDefaults.WorkflowLocalhost))
{
#region Invoke local Workflow
LogicalWorkflowContext lwc = LCC.LogicalWorkflowContext;
Guid workflowInstanceId = lwc.GetAndClearWorkflowId();
bool bGetWorkflowById = !workflowInstanceId.Equals(Guid.Empty);
// create workflow
Invoker invoker = null;
if (bGetWorkflowById)
{
invoker = WorkflowInvoker.Create(workflowInstanceId);
}
else
{
string endpoint = _endpoint.Replace(WorkflowDefaults.WorkflowLocalhost, "").Trim('/');
Type workflowType = RemotingServices.GetServerTypeForUri(endpoint);
invoker = WorkflowInvoker.Create(workflowType, lwc.WorkflowInitData);
}
// send remoting message
invoker.SendMessage(mcm);
// handle response
if (RemotingServices.IsOneWay(mcm.MethodBase) == false)
{
invoker.WaitForResponse(_Sender.TimeOut);
returnValue = invoker.GetResponse<object>();
}
#endregion
}
else if (_endpoint.StartsWith(WorkflowDefaults.WorkflowByWCF))
{
#region Invoke remote Workflow by WCF
try
{
string endpoint = _endpoint.Replace(WorkflowDefaults.WorkflowByWCF, "").Trim('/');
using (ChannelFactory2 factory = new ChannelFactory2(Type.GetType(mcm.TypeName), endpoint))
{
object tp = factory.CreateChannel();
using (OperationContextScope scope = new OperationContextScope(tp as IContextChannel))
{
// CallContext over the loosely coupled contract (LogicalWorkflowContext and Unknown)
object lwc = LCC.GetLogicalWorkflowContext;
if (lwc != null)
{
MessageHeader header = MessageHeader.CreateHeader("LogicalWorkflowContext", "RKiss.WorkflowRemoting", lwc, false, "WorkflowRemoting");
OperationContext.Current.OutgoingMessageHeaders.Add(header);
}
if (!string.IsNullOrEmpty(Sender.CallContextActor))
{
IDictionaryEnumerator enumerator = LCC.GetDataContract().GetEnumerator();
while (enumerator.MoveNext())
{
// skip it
if (enumerator.Value is LogicalWorkflowContext)
continue;
DataContractAttribute dca = enumerator.Key as DataContractAttribute;
MessageHeader header = MessageHeader.CreateHeader(dca.Name, dca.Namespace, enumerator.Value, false, Sender.CallContextActor);
OperationContext.Current.OutgoingMessageHeaders.Add(header);
}
}
// action
returnValue = factory.InvokeMethod(mcm.MethodName, mcm.Args);
}
factory.Close();
}
}
catch (TargetInvocationException ex)
{
throw ex.InnerException;
}
catch (Exception ex)
{
throw ex;
}
#endregion
}
else
{
throw new InvalidOperationException("No supported schema");
}
// return value
responseMsg = (IMessage)new ReturnMessage(returnValue, null, 0, null, mcm);
}
catch (System.ServiceModel.FaultException fe)
{
Exception ex = new Exception(fe.Message);
ex.GetType().InvokeMember("_stackTraceString", BindingFlags.SetField | BindingFlags.NonPublic | BindingFlags.Instance, null, ex, new object[] { fe.ToString() });
responseMsg = new ReturnMessage(ex, mcm);
}
catch (Exception ex)
{
responseMsg = new ReturnMessage(ex, mcm);
}
finally
{
#region serialize IMessage response to return back
bf.Serialize(responseStream, responseMsg);
responseStream.Position = 0;
responseHeaders = requestHeaders;
#endregion
}
}
