private SchedulerClient GetSchedulerClient(string strProcess, ScheduleHistoryItem objScheduleHistoryItem)
{
try
{
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// This is a method to encapsulate returning
// an object whose class inherits SchedulerClient.
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// Return value
SchedulerClient objRetClient = null;
// The constructor we've found
System.Reflection.ConstructorInfo objConstructor = null;
// The type we need
Type t = Type.GetType(strProcess, true);
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// Get the default constructor for the class
// ''''''''''''''''''''''''''''''''''''''''''''''''''
objConstructor = t.GetConstructor(System.Type.EmptyTypes);
if (null != objConstructor)
{
// Found the default constructor
objRetClient = (SchedulerClient)objConstructor.Invoke(null);
}
else
{
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// Get the parameterised constructor for the class
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// Parameters we pass to the constructor
ScheduleHistoryItem[] param = new ScheduleHistoryItem[1];
param[0] = objScheduleHistoryItem;
// Parameter types we pass to the constructor
Type[] types = new Type[1];
types[0] = typeof(ScheduleHistoryItem);
// Get the parameterised contructor
objConstructor = t.GetConstructor(types);
// Call the constructor
objRetClient = (SchedulerClient)objConstructor.Invoke(param);
}
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// Return an instance of the class as an object
// ''''''''''''''''''''''''''''''''''''''''''''''''''
return(objRetClient);
}
catch (Exception exc)
{
//Exceptions.ProcessSchedulerException(exc);
throw exc;
}
return(null);
}
public void Run(ScheduleHistoryItem objScheduleHistoryItem)
{
try
{
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// This is called from RunPooledThread()
// ''''''''''''''''''''''''''''''''''''''''''''''''''
ticksElapsed = Environment.TickCount - ticksElapsed;
// This is what we're running
SchedulerClient Process = null;
// Create an instance of our SchedulerClient derived class using Reflection
Process = GetSchedulerClient(objScheduleHistoryItem.TypeFullName, objScheduleHistoryItem);
// Store the schedule info/item in the instance
Process.ScheduleHistoryItem = objScheduleHistoryItem;
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// Set up the handlers to the CoreScheduler from our instance
// ''''''''''''''''''''''''''''''''''''''''''''''''''
Process.ProcessStarted += new WorkStarted(Scheduler.CoreScheduler.WorkStarted);
Process.ProcessProgressing += new WorkProgressing(Scheduler.CoreScheduler.WorkProgressing);
Process.ProcessCompleted += new WorkCompleted(Scheduler.CoreScheduler.WorkCompleted);
Process.ProcessErrored += new WorkErrored(Scheduler.CoreScheduler.WorkErrored);
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// This kicks off the DoWork method of the class
// type specified in the configuration.
// ''''''''''''''''''''''''''''''''''''''''''''''''''
Process.Started();
// Do the actual work
try
{
// Do the actual work
Process.DoWork();
}
catch (Exception exc)
{
// In case the scheduler client
// didn't have proper exception handling
// make sure we fire the Errored event
Process.ScheduleHistoryItem.Succeeded = false;
Process.Errored(ref exc);
}
if (Process.ScheduleHistoryItem.Succeeded)
{
Process.Completed();
}
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// If all processes in this ProcessGroup have
// completed, set the ticksElapsed and raise
// the Completed event.
// I don't think this is necessary with the
// other events. I'll leave it for now and
// will probably take it out later.
// ''''''''''''''''''''''''''''''''''''''''''''''''''
if (processesCompleted == numberOfProcesses)
{
ticksElapsed = (Environment.TickCount - ticksElapsed);
if (null != Completed)
{
Completed();
}
}
}
catch (Exception exc)
{
//Exceptions.ProcessSchedulerException(exc);
throw exc;
}
finally
{
// See if we need to undo impersonation
//if (null != impersonationContext)
//{
// Globals.UndoImpersonation(impersonationContext);
//}
// ''''''''''''''''''''''''''''''''''''''''''''''''''
// Track how many processes have completed for
// this instanciation of the ProcessGroup
// ''''''''''''''''''''''''''''''''''''''''''''''''''
numberOfProcessesInQueue -= 1;
processesCompleted++;
}
}
