internal DurableController(
DurableFunctionInfo durableDurableFunctionInfo,
IPowerShellServices powerShellServices,
IOrchestrationInvoker orchestrationInvoker)
{
_durableFunctionInfo = durableDurableFunctionInfo;
_powerShellServices = powerShellServices;
_orchestrationInvoker = orchestrationInvoker;
}
public Hashtable Invoke(OrchestrationBindingInfo orchestrationBindingInfo, IPowerShellServices pwsh)
{
try
{
var outputBuffer = new PSDataCollection <object>();
var context = orchestrationBindingInfo.Context;
// context.History should never be null when initializing CurrentUtcDateTime
var orchestrationStart = context.History.First(
e => e.EventType == HistoryEventType.OrchestratorStarted);
context.CurrentUtcDateTime = orchestrationStart.Timestamp.ToUniversalTime();
// Marks the first OrchestratorStarted event as processed
orchestrationStart.IsProcessed = true;
var asyncResult = pwsh.BeginInvoke(outputBuffer);
var(shouldStop, actions) =
orchestrationBindingInfo.Context.OrchestrationActionCollector.WaitForActions(asyncResult.AsyncWaitHandle);
if (shouldStop)
{
// The orchestration function should be stopped and restarted
pwsh.StopInvoke();
return(CreateOrchestrationResult(isDone: false, actions, output: null, context.CustomStatus));
}
else
{
try
{
// The orchestration function completed
pwsh.EndInvoke(asyncResult);
var result = FunctionReturnValueBuilder.CreateReturnValueFromFunctionOutput(outputBuffer);
return(CreateOrchestrationResult(isDone: true, actions, output: result, context.CustomStatus));
}
catch (Exception e)
{
// The orchestrator code has thrown an unhandled exception:
// this should be treated as an entire orchestration failure
throw new OrchestrationFailureException(actions, context.CustomStatus, e);
}
}
}
finally
{
pwsh.ClearStreamsAndCommands();
}
}
