public void Handle(EvaluatorControlProto message)
{
lock (_heartBeatManager)
{
Logger.Log(Level.Info, "Handle Evaluator control message");
if (!message.identifier.Equals(_evaluatorId, StringComparison.OrdinalIgnoreCase))
{
OnException(new InvalidOperationException(
string.Format(CultureInfo.InvariantCulture, "Identifier mismatch: message for evaluator id[{0}] sent to evaluator id[{1}]", message.identifier, _evaluatorId)));
}
else if (_state == State.DONE)
{
if (message.done_evaluator != null)
{
Logger.Log(Level.Info, "Received ACK from Driver, shutting down Evaluator.");
_clock.Dispose();
return;
}
else
{
OnException(new InvalidOperationException("Received a control message from Driver after Evaluator is done."));
}
}
else if (_state != State.RUNNING)
{
OnException(new InvalidOperationException(
string.Format(CultureInfo.InvariantCulture, "Evaluator received a control message but its state is not {0} but rather {1}", State.RUNNING, _state)));
}
else
{
if (message.context_control != null)
{
Logger.Log(Level.Info, "Send task control message to ContextManager");
try
{
_contextManager.HandleTaskControl(message.context_control);
if (_contextManager.ContextStackIsEmpty() && _state == State.RUNNING)
{
Logger.Log(Level.Info, "Context stack is empty, done");
_state = State.DONE;
_heartBeatManager.OnNext(GetEvaluatorStatus());
}
}
catch (Exception e)
{
Utilities.Diagnostics.Exceptions.Caught(e, Level.Error, Logger);
OnException(e);
Utilities.Diagnostics.Exceptions.Throw(new InvalidOperationException(e.ToString(), e), Logger);
}
}
if (message.kill_evaluator != null)
{
Logger.Log(Level.Info, "Evaluator {0} has been killed by the driver.", _evaluatorId);
_state = State.KILLED;
_clock.Dispose();
}
}
}
}
