vRO comes with builtin actions for waiting for a VC:Task (vCenter Task). However this (as all “builtin” actions comes without any form of errorhandling.)

This is an example on how to include error handling (and note: This is now a workflow)

Input parameter:

[Number]MaxWaitTime = Number of seconds for maximum wait before we say the task timed out.
[VC:Task]Task = Task to wait for completion.


Output parameters:

[String]TaskResult = “ERROR”,“TIMEOUT” or “OK” (check for this result)
[String]TaskError = Error Description if TaskResult = “ERROR”


var timeout = MaxWaitTime;		
if (timeout == 0)
{
	timeout = 60;		// 60 Seconds minimum
}
var polling = 5;		// Check Every 5 second..
 
TaskError = "";		// Blank by Default.
 
if (Task != null && (Task instanceof VcTask))
{
 
	System.log("WaitForTask started.  Task: "+Task.name +"("+Task.info.name+") on: "+Task.info.entityName);
 
	while (true)
	{
		if (Task.info.state ==VcTaskInfoState.error)
		{
			TaskResult= "ERROR";
			TaskError = Task.info.error.message;
			break;
		}
		else if (Task.info.state ==VcTaskInfoState.running)
		{
			System.log("Task still running...");
			timeout -= polling;
			System.sleep(polling * 1000);
		}
		else if (Task.info.state ==VcTaskInfoState.queued)
		{
			System.log("Task is queued...");
			timeout -= polling;
			System.sleep(polling * 1000);
		}
		else if (Task.info.state ==VcTaskInfoState.success)
		{
			TaskResult = "OK";
			break;
		}
		if (timeout <= 0) 
		{
			System.log ("TaskWait timed out...");
			TaskResult = "TIMEOUT";
			break;
		}
	}
	System.log("Task Start Time:      "+Task.info.startTime);
	System.log("Task Queue Time:      "+Task.info.queueTime);
	try
	{
		// Note: If task failed, the completion time will not exists.
		System.log("Task Completion Time: "+Task.info.completeTime);
	}
	catch (exception)
	{
		// Do Not care...        
	}
 
}
else
{
	// Task was null
	TaskResult = "ERROR";
	TaskError ="NULL value for Task to wait for."
}