public void WorkflowStart(String assemblyUrl, String workflowClassName, WorkflowStartRequest startRequest)
{
workflowResponse.WorkQueueItemId = startRequest.WorkQueueItemId;
#region Load Workflow Assembly
assemblyReferencePath = assemblyUrl.Substring(0, assemblyUrl.LastIndexOf('\\') + 1);
assemblyReferenceName = assemblyUrl.Replace(assemblyReferencePath, "");
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(CurrentDomain_AssemblyResolve);
System.Reflection.Assembly workflowAssembly = System.Reflection.Assembly.LoadFrom(assemblyUrl);
Type workflowClass = workflowAssembly.GetType(workflowClassName);
if (workflowClass == null)
{
throw new ApplicationException("Unable to find Class [" + workflowClassName + "] in referenced Assembly [" + assemblyUrl + "].");
}
#endregion
#region Build Workflow Arguments (Inputs)
Dictionary <String, Object> workflowArguments = new Dictionary <String, Object> ();
workflowArguments.Add("WorkflowManager", this);
foreach (System.Reflection.PropertyInfo currentProperty in workflowClass.GetProperties())
{
String propertyName = currentProperty.Name;
Type propertyType = currentProperty.PropertyType;
System.Diagnostics.Debug.WriteLine("Workflow Property: " + propertyName + " [" + propertyType + "]");
System.Diagnostics.Debug.WriteLine(currentProperty.ToString());
if (startRequest.Arguments.ContainsKey(propertyName))
{
try {
switch (propertyType.Name)
{
case "Int16": workflowArguments.Add(propertyName, Convert.ToInt16(startRequest.Arguments[propertyName])); break;
case "Int32": workflowArguments.Add(propertyName, Convert.ToInt32(startRequest.Arguments[propertyName])); break;
case "Int64": workflowArguments.Add(propertyName, Convert.ToInt64(startRequest.Arguments[propertyName])); break;
case "DateTime": workflowArguments.Add(propertyName, Convert.ToDateTime(startRequest.Arguments[propertyName])); break;
case "Decimal": workflowArguments.Add(propertyName, Convert.ToDecimal(startRequest.Arguments[propertyName])); break;
case "Single": workflowArguments.Add(propertyName, Convert.ToSingle(startRequest.Arguments[propertyName])); break;
case "Double": workflowArguments.Add(propertyName, Convert.ToDouble(startRequest.Arguments[propertyName])); break;
case "Boolean": workflowArguments.Add(propertyName, Convert.ToBoolean(startRequest.Arguments[propertyName])); break;
case "String": workflowArguments.Add(propertyName, Convert.ToString(startRequest.Arguments[propertyName])); break;
default:
if (propertyName.EndsWith("Id"))
{
workflowArguments.Add(propertyName, Convert.ToInt64(startRequest.Arguments[propertyName]));
}
else
{
workflowArguments.Add(propertyName, startRequest.Arguments[propertyName]);
}
break;
}
}
catch (Exception conversionException) {
System.Diagnostics.Trace.WriteLineIf(Application.TraceSwitchWorkflow.TraceError, conversionException.Message);
}
}
}
#endregion
// START WORKFLOW
workflowInstance = new System.Activities.WorkflowApplication((System.Activities.Activity)Activator.CreateInstance(workflowAssembly.GetType(workflowClassName)), workflowArguments);
// LINK EVENT HANDLERS
workflowInstance.Completed = WorkflowCompleted;
workflowInstance.Aborted = WorkflowAborted;
// workflowInstance.Idle = WorkflowIdle; // DO NOTHING, REMOVED, FALL THROUGH TO PERSISTABLE IDLE TO UNLOAD
workflowInstance.PersistableIdle = WorkflowPersistableIdle;
workflowInstance.Unloaded = WorkflowUnloaded;
workflowInstance.OnUnhandledException = WorkflowOnUnhandledException;
// LINK PERSISTANCE INSTANCE STORE
workflowInstance.InstanceStore = instanceStore;
// EXECUTE WORKFLOW
WorkflowStatus = Workflows.WorkflowStatus.Started;
workflowInstance.Run();
return;
}
