public bool Start()
{
lock (_lockObject)
{
// Do not start if handler is in failed state
if (_handlerState == HandlerState.Failed)
{
return(false);
}
if (_handlerProxy == null)
{
_appDomain = CreateDomain();
RunningHandlerProxy proxy;
var initResult = InitializeAndStartRunningHandler(out proxy);
if (initResult.HasError)
{
_logger.Error("Handler: Init failed: {0}: {1}", initResult.ErrorReason, initResult.ErrorMessage);
SetFailed();
return(false);
}
_handlerProxy = proxy;
_lastStartTime = DateTime.Now;
_handlerMessage = String.Empty;
}
_handlerState = HandlerState.Running;
}
return(true);
}
private void CleanupProxy(bool notifyStop)
{
if (_handlerProxy != null)
{
_handlerProxy.TearDown(notifyStop);
_handlerProxy = null;
}
}
private JobScriptInitializeResult InitializeAndStartRunningHandler(out RunningHandlerProxy handlerProxy)
{
// Create a proxy for the handler
handlerProxy = (RunningHandlerProxy)_appDomain.CreateInstanceAndUnwrap(typeof(RunningHandlerProxy).Assembly.FullName, typeof(RunningHandlerProxy).FullName, false, BindingFlags.Default, null, new object[] { Id, _packageManager.PackageBaseFolder }, null, null);
// Create a interchangeable event sink to register cross-domain events to catch logging events
var sink = new EventSink <LogEventArgs>();
handlerProxy.RegisterLogEventSink(sink);
sink.NotificationFired += (sender, args) => _logger.Log(args.LogEntry.SetHandlerId(Id));
// Register event sink to listen on state changes
var stateSink = new EventSink <RunningHandlerStateChangedEventArgs>();
handlerProxy.RegisterStateChangedEventSink(stateSink);
stateSink.NotificationFired += (sender, args) =>
{
if (args.State == RunningHandlerState.Failed)
{
SetFailed();
}
else if (args.State == RunningHandlerState.Finished)
{
SetFinished();
}
};
// Initialize the handler
var initParams = new RunningHandlerInitializeParams
{
HandlerSettings = HandlerSettings,
JobHash = JobScript.Hash,
PackageName = JobScript.PackageName,
JobAssemblyPath = JobScriptAssembly
};
var initResult = handlerProxy.InitializeAndStart(initParams);
return(initResult);
}
