private void HandleCallReq(PyPacket packet, Client client)
{
PyTuple callInfo = ((packet.Payload[0] as PyTuple)[1] as PySubStream).Stream as PyTuple;
string call = callInfo[1] as PyString;
PyTuple args = callInfo[2] as PyTuple;
PyDictionary sub = callInfo[3] as PyDictionary;
PyDataType callResult = null;
PyAddressClient source = packet.Source as PyAddressClient;
string destinationService = null;
CallInformation callInformation;
if (packet.Destination is PyAddressAny destAny)
{
destinationService = destAny.Service;
}
else if (packet.Destination is PyAddressNode destNode)
{
destinationService = destNode.Service;
if (destNode.NodeID != Container.NodeID)
{
Log.Fatal(
"Received a call request for a node that is not us, did the ClusterController get confused or something?!"
);
return;
}
}
callInformation = new CallInformation
{
Client = client,
CallID = source.CallID,
NamedPayload = sub,
PacketType = packet.Type,
Service = destinationService,
From = packet.Source,
To = packet.Destination
};
try
{
if (destinationService == null)
{
if (callInfo[0] is PyString == false)
{
Log.Fatal("Expected bound call with bound string, but got something different");
return;
}
string boundString = callInfo[0] as PyString;
// parse the bound string to get back proper node and bound ids
Match regexMatch = Regex.Match(boundString, "N=([0-9]+):([0-9]+)");
if (regexMatch.Groups.Count != 3)
{
Log.Fatal($"Cannot find nodeID and boundID in the boundString {boundString}");
return;
}
int nodeID = int.Parse(regexMatch.Groups[1].Value);
int boundID = int.Parse(regexMatch.Groups[2].Value);
if (nodeID != this.Container.NodeID)
{
Log.Fatal("Got bound service call for a different node");
// TODO: MIGHT BE A GOOD IDEA TO RELAY THIS CALL TO THE CORRECT NODE
// TODO: INSIDE THE NETWORK, AT LEAST THAT'S WHAT CCP IS DOING BASED
// TODO: ON THE CLIENT'S CODE... NEEDS MORE INVESTIGATION
return;
}
#if DEBUG
CallLog.Trace("Payload");
CallLog.Trace(PrettyPrinter.FromDataType(args));
CallLog.Trace("Named payload");
CallLog.Trace(PrettyPrinter.FromDataType(sub));
#endif
callResult = this.BoundServiceManager.ServiceCall(
boundID, call, args, callInformation
);
#if DEBUG
ResultLog.Trace("Result");
ResultLog.Trace(PrettyPrinter.FromDataType(callResult));
#endif
}
else
{
Log.Trace($"Calling {destinationService}::{call}");
#if DEBUG
CallLog.Trace("Payload");
CallLog.Trace(PrettyPrinter.FromDataType(args));
CallLog.Trace("Named payload");
CallLog.Trace(PrettyPrinter.FromDataType(sub));
#endif
callResult = this.ServiceManager.ServiceCall(
destinationService, call, args, callInformation
);
#if DEBUG
ResultLog.Trace("Result");
ResultLog.Trace(PrettyPrinter.FromDataType(callResult));
#endif
}
this.SendCallResult(callInformation, callResult);
}
catch (PyException e)
{
this.SendException(callInformation, e);
}
catch (ProvisionalResponse provisional)
{
this.SendProvisionalResponse(callInformation, provisional);
}
}