Unit DoScheduleNoIO(object message, ProcessId sender, Schedule schedule, Message.Type type, Message.TagSpec tag)
{
var inboxKey = ActorInboxCommon.ClusterScheduleKey(ProcessId);
var id = schedule.Key ?? Guid.NewGuid().ToString();
var current = Cluster.GetHashField <RemoteMessageDTO>(inboxKey, id);
message = current.Match(
Some: last =>
{
var a = MessageSerialiser.DeserialiseMsg(last, ProcessId) as UserMessage;
var m = a == null
? message
: schedule.Fold(a.Content, message);
return(m);
},
None: () => schedule.Fold(schedule.Zero, message));
ValidateMessageType(message, sender);
var dto = RemoteMessageDTO.Create(message, ProcessId, sender, type, tag, SessionId, schedule.Due.Ticks);
tell(ProcessId.Take(1).Child("system").Child("scheduler"), Scheduler.Msg.AddToSchedule(inboxKey, id, dto));
//Cluster.HashFieldAddOrUpdate(inboxKey, id, dto);
return(unit);
}
public Unit TellSystem(SystemMessage message, ProcessId sender) =>
transactionalIO
? ignore(Cluster.PublishToChannel(
ActorInboxCommon.ClusterSystemInboxNotifyKey(ProcessId),
RemoteMessageDTO.Create(message, ProcessId, sender, Message.Type.System, message.Tag, SessionId, 0)))
: ProcessOp.IO(() =>
{
var clientsReached = Cluster.PublishToChannel(
ActorInboxCommon.ClusterSystemInboxNotifyKey(ProcessId),
RemoteMessageDTO.Create(message, ProcessId, sender, Message.Type.System, message.Tag, SessionId, 0));
return(unit);
});
Unit TellNoIO(object message, ProcessId sender, string inbox, Message.Type type, Message.TagSpec tag)
{
ValidateMessageType(message, sender);
var dto = RemoteMessageDTO.Create(message, ProcessId, sender, type, tag, SessionId, 0);
var inboxKey = ActorInboxCommon.ClusterInboxKey(ProcessId, inbox);
var inboxNotifyKey = ActorInboxCommon.ClusterInboxNotifyKey(ProcessId, inbox);
Cluster.Enqueue(inboxKey, dto);
var clientsReached = Cluster.PublishToChannel(inboxNotifyKey, dto.MessageId);
return(unit);
}
static RemoteMessageDTO FixupPathsSystemPrefix(RemoteMessageDTO dto, SystemName system)
{
if (dto == null)
{
return(null);
}
// Fix up the paths so we know what system they belong to.
dto.ReplyTo = String.IsNullOrEmpty(dto.ReplyTo) || dto.ReplyTo.StartsWith("//") ? dto.ReplyTo : $"//{system}{dto.ReplyTo}";
dto.Sender = String.IsNullOrEmpty(dto.Sender) || dto.Sender.StartsWith("//") ? dto.Sender : $"//{system}{dto.Sender}";
dto.To = String.IsNullOrEmpty(dto.To) || dto.To.StartsWith("//") ? dto.To : $"//{system}{dto.To}";
return(dto);
}
public static Option <Tuple <RemoteMessageDTO, Message> > GetNextMessage(ICluster cluster, ProcessId self, string key)
{
if (cluster == null)
{
return(None);
}
Message msg = null;
RemoteMessageDTO dto = null;
dto = null;
do
{
dto = cluster.Peek <RemoteMessageDTO>(key);
if (dto == null)
{
// Queue is empty
return(None);
}
if (dto.Tag == 0 && dto.Type == 0)
{
// Message is bad
cluster.Dequeue <RemoteMessageDTO>(key);
tell(ActorContext.System(self).DeadLetters, DeadLetter.create(dto.Sender, self, null, "Failed to deserialise message: ", dto));
if (cluster.QueueLength(key) == 0)
{
return(None);
}
}
}while (dto == null || dto.Tag == 0 || dto.Type == 0);
try
{
msg = MessageSerialiser.DeserialiseMsg(dto, self);
msg.SessionId = dto.SessionId;
}
catch (Exception e)
{
// Message can't be deserialised
cluster.Dequeue <RemoteMessageDTO>(key);
tell(ActorContext.System(self).DeadLetters, DeadLetter.create(dto.Sender, self, e, "Failed to deserialise message: ", msg));
return(None);
}
return(Some(Tuple(dto, msg)));
}
public static Message DeserialiseMsg(RemoteMessageDTO msg, ProcessId actorId)
{
var sys = actorId.System;
msg = FixupPathsSystemPrefix(msg, sys);
var sender = String.IsNullOrEmpty(msg.Sender) ? ProcessId.NoSender : new ProcessId(msg.Sender);
var replyTo = String.IsNullOrEmpty(msg.ReplyTo) ? ProcessId.NoSender : new ProcessId(msg.ReplyTo);
switch ((Message.TagSpec)msg.Tag)
{
case Message.TagSpec.UserReply:
var content = DeserialiseMsgContent(msg);
return(new ActorResponse(content, actorId, sender, msg.RequestId, content.GetType().AssemblyQualifiedName, msg.Exception == "RESPERR"));
case Message.TagSpec.UserAsk: return(new ActorRequest(DeserialiseMsgContent(msg), actorId, replyTo.SetSystem(sys), msg.RequestId));
case Message.TagSpec.User: return(new UserMessage(DeserialiseMsgContent(msg), sender.SetSystem(sys), replyTo.SetSystem(sys)));
case Message.TagSpec.UserTerminated: return(((TerminatedMessage)DeserialiseMsgContent(msg)).SetSystem(sys));
case Message.TagSpec.GetChildren: return(UserControlMessage.GetChildren);
case Message.TagSpec.StartupProcess: return(SystemMessage.StartupProcess);
case Message.TagSpec.ShutdownProcess: return((ShutdownProcessMessage)DeserialiseMsgContent(msg));
case Message.TagSpec.Restart: return(SystemMessage.Restart);
case Message.TagSpec.Pause: return(SystemMessage.Pause);
case Message.TagSpec.Unpause: return(SystemMessage.Unpause);
case Message.TagSpec.DispatchWatch: return((SystemDispatchWatchMessage)DeserialiseMsgContent(msg));
case Message.TagSpec.DispatchUnWatch: return((SystemDispatchUnWatchMessage)DeserialiseMsgContent(msg));
case Message.TagSpec.Watch: return((SystemAddWatcherMessage)DeserialiseMsgContent(msg));
case Message.TagSpec.UnWatch: return((SystemRemoveWatcherMessage)DeserialiseMsgContent(msg));
}
throw new Exception($"Unknown Message Tag: {msg.Tag}");
}
private static object DeserialiseMsgContent(RemoteMessageDTO msg)
{
object content = null;
if (msg.Content == null)
{
throw new Exception($"Message content is null from {msg.Sender}");
}
else
{
var contentType = Type.GetType(msg.ContentType);
if (contentType == null)
{
throw new Exception($"Can't resolve type: {msg.ContentType}");
}
content = Deserialise.Object(msg.Content, contentType);
}
return(content);
}
/// <summary>
/// TODO: This is a combination of code in ActorCommon.GetNextMessage and
/// CheckRemoteInbox. Some factoring is needed.
/// </summary>
void SysInbox(RemoteMessageDTO dto)
{
try
{
if (dto == null)
{
// Failed to deserialise properly
return;
}
if (dto.Tag == 0 && dto.Type == 0)
{
// Message is bad
tell(ActorContext.System(actor.Id).DeadLetters, DeadLetter.create(dto.Sender, actor.Id, null, "Failed to deserialise message: ", dto));
return;
}
var msg = MessageSerialiser.DeserialiseMsg(dto, actor.Id);
try
{
lock (sync)
{
ActorInboxCommon.SystemMessageInbox(actor, this, (SystemMessage)msg, parent);
}
}
catch (Exception e)
{
var session = msg.SessionId == null
? None
: Some(new SessionId(msg.SessionId));
ActorContext.System(actor.Id).WithContext(new ActorItem(actor, this, actor.Flags), parent, dto.Sender, msg as ActorRequest, msg, session, () => replyErrorIfAsked(e));
tell(ActorContext.System(actor.Id).DeadLetters, DeadLetter.create(dto.Sender, actor.Id, e, "Remote message inbox.", msg));
logSysErr(e);
}
}
catch (Exception e)
{
logSysErr(e);
}
}
public State Add(string key, string innerKey, RemoteMessageDTO msg) => new State(Scheduled.Map(s => s.AddOrUpdate(key, innerKey, msg)));
public AddToScheduleMsg(string inboxKey, string id, RemoteMessageDTO message)
{
InboxKey = inboxKey;
Id = id;
Message = message;
}
public static Msg AddToSchedule(string inboxKey, string id, RemoteMessageDTO message) => new AddToScheduleMsg(inboxKey, id, message);
public OutboundRelayMsg(ClientConnectionId connectionId, RemoteMessageDTO msg, ProcessId to, ProcessId sender, bool isAsk)
:
base(MsgTag.Outbound, connectionId, to, sender, isAsk)
{
Message = msg;
}