protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
        {
            if (executionContext == null)
            {
                throw new ArgumentNullException("executionContext");
            }
            if (this.Fault == null)
            {
                throw new InvalidOperationException(SR.GetString(CultureInfo.CurrentCulture, "Error_PropertyNotSet", new object[] { FaultProperty.Name }));
            }
            WorkflowQueuingService service = executionContext.GetService <WorkflowQueuingService>();

            base.RaiseEvent(SendingFaultEvent, this, EventArgs.Empty);
            WebServiceInputActivity activityByName = base.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
            IComparable             queueName      = new EventQueueName(activityByName.InterfaceType, activityByName.MethodName, activityByName.QualifiedName);
            IMethodResponseMessage  message        = null;
            WorkflowQueue           workflowQueue  = service.GetWorkflowQueue(queueName);

            if (workflowQueue.Count != 0)
            {
                message = workflowQueue.Dequeue() as IMethodResponseMessage;
            }
            message.SendException(this.Fault);
            return(ActivityExecutionStatus.Closed);
        }
Пример #2
0
        protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
        {
            if (executionContext == null)
            {
                throw new ArgumentNullException("executionContext");
            }

            if (this.Fault == null)
            {
                throw new InvalidOperationException(SR.GetString(CultureInfo.CurrentCulture, SR.Error_PropertyNotSet, FaultProperty.Name));
            }

            WorkflowQueuingService queueService = executionContext.GetService <WorkflowQueuingService>();

            // fire event
            this.RaiseEvent(WebServiceFaultActivity.SendingFaultEvent, this, EventArgs.Empty);

            WebServiceInputActivity webservicereceive = this.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;
            IComparable             queueId           = new EventQueueName(webservicereceive.InterfaceType, webservicereceive.MethodName, webservicereceive.QualifiedName);

            Debug.Assert(queueService.Exists(queueId));
            IMethodResponseMessage responseMessage = null;
            WorkflowQueue          queue           = queueService.GetWorkflowQueue(queueId);

            if (queue.Count != 0)
            {
                responseMessage = queue.Dequeue() as IMethodResponseMessage;
            }

            System.Diagnostics.Debug.Assert(responseMessage != null);

            // populate exception & reset the waiting thread
            responseMessage.SendException(this.Fault);

            return(ActivityExecutionStatus.Closed);
        }
Пример #3
0
        protected Object[] Invoke(Type interfaceType, String methodName, bool isActivation, Object[] parameters)
        {
            Guid             workflowInstanceId = GetWorkflowInstanceId(ref isActivation);
            WorkflowInstance wfInstance;

            EventQueueName key = new EventQueueName(interfaceType, methodName);

            MethodInfo mInfo = interfaceType.GetMethod(methodName);

            bool responseRequired = (mInfo.ReturnType != typeof(void));

            if (!responseRequired)
            {
                foreach (ParameterInfo parameter in mInfo.GetParameters())
                {
                    if (parameter.ParameterType.IsByRef || parameter.IsOut)
                    {
                        responseRequired = true;
                        break;
                    }
                }
            }

            MethodMessage methodMessage = PrepareMessage(interfaceType, methodName, parameters, responseRequired);

            EventHandler <WorkflowTerminatedEventArgs> workflowTerminationHandler = null;
            EventHandler <WorkflowCompletedEventArgs>  workflowCompletedHandler   = null;

            try
            {
                if (isActivation)
                {
                    wfInstance = WorkflowRuntime.CreateWorkflow(this.workflowType, null, workflowInstanceId);
                    SafeEnqueueItem(wfInstance, key, methodMessage);
                    wfInstance.Start();
                }
                else
                {
                    wfInstance = WorkflowRuntime.GetWorkflow(workflowInstanceId);
                    SafeEnqueueItem(wfInstance, key, methodMessage);
                }

                bool workflowTerminated = false;

                //Handler for workflow termination in b/w outstanding req-response.
                workflowTerminationHandler = delegate(Object sender, WorkflowTerminatedEventArgs e)
                {
                    if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
                    {
                        methodMessage.SendException(e.Exception);
                        workflowTerminated = true;
                    }
                };

                workflowCompletedHandler = delegate(Object sender, WorkflowCompletedEventArgs e)
                {
                    if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
                    {
                        methodMessage.SendException(new ApplicationException(SR.GetString(System.Globalization.CultureInfo.CurrentCulture, SR.Error_WorkflowCompleted)));
                    }
                };

                WorkflowRuntime.WorkflowTerminated += workflowTerminationHandler;
                WorkflowRuntime.WorkflowCompleted  += workflowCompletedHandler;

                ManualWorkflowSchedulerService scheduler = WorkflowRuntime.GetService <ManualWorkflowSchedulerService>();

                if (scheduler != null)
                {
                    scheduler.RunWorkflow(wfInstance.InstanceId);
                }

                if (!responseRequired)
                {
                    // no ret, out or ref
                    return(new Object[] { });
                }

                IMethodResponseMessage response = methodMessage.WaitForResponseMessage();

                if (response.Exception != null)
                {
                    if (!workflowTerminated)
                    {
                        throw response.Exception;
                    }
                    else
                    {
                        throw new ApplicationException(SR.GetString(System.Globalization.CultureInfo.CurrentCulture, SR.Error_WorkflowTerminated), response.Exception);
                    }
                }

                if (response.OutArgs != null)
                {
                    return(((ArrayList)response.OutArgs).ToArray());
                }
                else
                {
                    return new Object[] { }
                };
            }
            finally
            {
                if (workflowTerminationHandler != null)
                {
                    WorkflowRuntime.WorkflowTerminated -= workflowTerminationHandler;
                }

                if (workflowCompletedHandler != null)
                {
                    WorkflowRuntime.WorkflowCompleted -= workflowCompletedHandler;
                }
            }
        }
Пример #4
0
        protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
        {
            if (executionContext == null)
            {
                throw new ArgumentNullException("executionContext");
            }

            WorkflowQueuingService queueService = executionContext.GetService <WorkflowQueuingService>();

            // fire event
            this.RaiseEvent(WebServiceOutputActivity.SendingOutputEvent, this, EventArgs.Empty);

            WebServiceInputActivity webservicereceive = this.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;

            if (webservicereceive == null)
            {
                Activity parent = this.Parent;
                while (parent != null)
                {
                    //typically if defined inside a custom activity
                    string qualifiedName = parent.QualifiedName + "." + this.InputActivityName;
                    webservicereceive = this.GetActivityByName(qualifiedName) as WebServiceInputActivity;
                    if (webservicereceive != null)
                    {
                        break;
                    }
                    parent = this.Parent;
                }
            }
            if (webservicereceive == null)
            {
                throw new InvalidOperationException(SR.GetString(SR.Error_CannotResolveWebServiceInput, this.QualifiedName, this.InputActivityName));
            }

            IComparable queueId = new EventQueueName(webservicereceive.InterfaceType, webservicereceive.MethodName, webservicereceive.QualifiedName);

            MethodInfo mInfo = webservicereceive.InterfaceType.GetMethod(webservicereceive.MethodName);

            if (!queueService.Exists(queueId))
            {
                // determine if no response is required,
                // compiler did not catch it, do the runtime check and return
                if (mInfo.ReturnType == typeof(void))
                {
                    return(ActivityExecutionStatus.Closed);
                }

                bool isresponseRequired = false;
                foreach (ParameterInfo formalParameter in mInfo.GetParameters())
                {
                    if (formalParameter.ParameterType.IsByRef || (formalParameter.IsIn && formalParameter.IsOut))
                    {
                        isresponseRequired = true;
                    }
                }

                if (isresponseRequired)
                {
                    return(ActivityExecutionStatus.Closed);
                }
            }

            if (!queueService.Exists(queueId))
            {
                throw new InvalidOperationException(SR.GetString(SR.Error_WebServiceInputNotProcessed, webservicereceive.QualifiedName));
            }

            IMethodResponseMessage responseMessage = null;
            WorkflowQueue          queue           = queueService.GetWorkflowQueue(queueId);

            if (queue.Count != 0)
            {
                responseMessage = queue.Dequeue() as IMethodResponseMessage;
            }

            IMethodMessage message = responseMessage as IMethodMessage;

            WorkflowParameterBindingCollection parameterBindings = this.ParameterBindings;
            ArrayList outArgs = new ArrayList();

            // populate result
            if (this.ParameterBindings.Contains("(ReturnValue)"))
            {
                WorkflowParameterBinding retBind = this.ParameterBindings["(ReturnValue)"];
                if (retBind != null)
                {
                    outArgs.Add(retBind.Value);
                }
            }

            foreach (ParameterInfo formalParameter in mInfo.GetParameters())
            {
                // update out and byref values
                if (formalParameter.ParameterType.IsByRef || (formalParameter.IsIn && formalParameter.IsOut))
                {
                    WorkflowParameterBinding binding = parameterBindings[formalParameter.Name];
                    outArgs.Add(binding.Value);
                }
            }

            // reset the waiting thread
            responseMessage.SendResponse(outArgs);

            return(ActivityExecutionStatus.Closed);
        }
        protected override ActivityExecutionStatus Execute(ActivityExecutionContext executionContext)
        {
            if (executionContext == null)
            {
                throw new ArgumentNullException("executionContext");
            }
            WorkflowQueuingService service = executionContext.GetService <WorkflowQueuingService>();

            base.RaiseEvent(SendingOutputEvent, this, EventArgs.Empty);
            WebServiceInputActivity activityByName = base.GetActivityByName(this.InputActivityName) as WebServiceInputActivity;

            if (activityByName == null)
            {
                for (Activity activity2 = base.Parent; activity2 != null; activity2 = base.Parent)
                {
                    string activityQualifiedName = activity2.QualifiedName + "." + this.InputActivityName;
                    activityByName = base.GetActivityByName(activityQualifiedName) as WebServiceInputActivity;
                    if (activityByName != null)
                    {
                        break;
                    }
                }
            }
            if (activityByName == null)
            {
                throw new InvalidOperationException(SR.GetString("Error_CannotResolveWebServiceInput", new object[] { base.QualifiedName, this.InputActivityName }));
            }
            IComparable queueName = new EventQueueName(activityByName.InterfaceType, activityByName.MethodName, activityByName.QualifiedName);
            MethodInfo  method    = activityByName.InterfaceType.GetMethod(activityByName.MethodName);

            if (!service.Exists(queueName))
            {
                if (method.ReturnType == typeof(void))
                {
                    return(ActivityExecutionStatus.Closed);
                }
                bool flag = false;
                foreach (ParameterInfo info2 in method.GetParameters())
                {
                    if (info2.ParameterType.IsByRef || (info2.IsIn && info2.IsOut))
                    {
                        flag = true;
                    }
                }
                if (flag)
                {
                    return(ActivityExecutionStatus.Closed);
                }
            }
            if (!service.Exists(queueName))
            {
                throw new InvalidOperationException(SR.GetString("Error_WebServiceInputNotProcessed", new object[] { activityByName.QualifiedName }));
            }
            IMethodResponseMessage message       = null;
            WorkflowQueue          workflowQueue = service.GetWorkflowQueue(queueName);

            if (workflowQueue.Count != 0)
            {
                message = workflowQueue.Dequeue() as IMethodResponseMessage;
            }
            WorkflowParameterBindingCollection parameterBindings = this.ParameterBindings;
            ArrayList outArgs = new ArrayList();

            if (this.ParameterBindings.Contains("(ReturnValue)"))
            {
                WorkflowParameterBinding binding = this.ParameterBindings["(ReturnValue)"];
                if (binding != null)
                {
                    outArgs.Add(binding.Value);
                }
            }
            foreach (ParameterInfo info3 in method.GetParameters())
            {
                if (info3.ParameterType.IsByRef || (info3.IsIn && info3.IsOut))
                {
                    WorkflowParameterBinding binding2 = parameterBindings[info3.Name];
                    outArgs.Add(binding2.Value);
                }
            }
            message.SendResponse(outArgs);
            return(ActivityExecutionStatus.Closed);
        }
        protected object[] Invoke(Type interfaceType, string methodName, bool isActivation, object[] parameters)
        {
            EventHandler <WorkflowCompletedEventArgs> handler3 = null;

            object[]       objArray;
            Guid           workflowInstanceId = GetWorkflowInstanceId(ref isActivation);
            EventQueueName key              = new EventQueueName(interfaceType, methodName);
            MethodInfo     method           = interfaceType.GetMethod(methodName);
            bool           responseRequired = method.ReturnType != typeof(void);

            if (!responseRequired)
            {
                foreach (ParameterInfo info2 in method.GetParameters())
                {
                    if (info2.ParameterType.IsByRef || info2.IsOut)
                    {
                        responseRequired = true;
                        break;
                    }
                }
            }
            MethodMessage methodMessage = PrepareMessage(interfaceType, methodName, parameters, responseRequired);
            EventHandler <WorkflowTerminatedEventArgs> handler  = null;
            EventHandler <WorkflowCompletedEventArgs>  handler2 = null;

            try
            {
                WorkflowInstance workflow;
                if (isActivation)
                {
                    workflow = this.WorkflowRuntime.CreateWorkflow(this.workflowType, null, workflowInstanceId);
                    SafeEnqueueItem(workflow, key, methodMessage);
                    workflow.Start();
                }
                else
                {
                    workflow = this.WorkflowRuntime.GetWorkflow(workflowInstanceId);
                    SafeEnqueueItem(workflow, key, methodMessage);
                }
                bool workflowTerminated = false;
                handler = delegate(object sender, WorkflowTerminatedEventArgs e) {
                    if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
                    {
                        methodMessage.SendException(e.Exception);
                        workflowTerminated = true;
                    }
                };
                if (handler3 == null)
                {
                    handler3 = delegate(object sender, WorkflowCompletedEventArgs e) {
                        if (e.WorkflowInstance.InstanceId.Equals(workflowInstanceId))
                        {
                            methodMessage.SendException(new ApplicationException(SR.GetString(CultureInfo.CurrentCulture, "Error_WorkflowCompleted")));
                        }
                    };
                }
                handler2 = handler3;
                this.WorkflowRuntime.WorkflowTerminated += handler;
                this.WorkflowRuntime.WorkflowCompleted  += handler2;
                ManualWorkflowSchedulerService service = this.WorkflowRuntime.GetService <ManualWorkflowSchedulerService>();
                if (service != null)
                {
                    service.RunWorkflow(workflow.InstanceId);
                }
                if (!responseRequired)
                {
                    return(new object[0]);
                }
                IMethodResponseMessage message = methodMessage.WaitForResponseMessage();
                if (message.Exception != null)
                {
                    if (!workflowTerminated)
                    {
                        throw message.Exception;
                    }
                    throw new ApplicationException(SR.GetString(CultureInfo.CurrentCulture, "Error_WorkflowTerminated"), message.Exception);
                }
                if (message.OutArgs != null)
                {
                    return(((ArrayList)message.OutArgs).ToArray());
                }
                objArray = new object[0];
            }
            finally
            {
                if (handler != null)
                {
                    this.WorkflowRuntime.WorkflowTerminated -= handler;
                }
                if (handler2 != null)
                {
                    this.WorkflowRuntime.WorkflowCompleted -= handler2;
                }
            }
            return(objArray);
        }