Is it possible to give a custom scope to a direct channel? (no subscriber issue)

[davidcyp]

Oleg,

That's correct. The message carries a header containing a unique piece of data which can be used to determine the destination thread.

[oleg.zhurakousky]

Thanks, and the other question is are you storing something in thread local? I mean can the same thread be shared by more then one Messages, as long as its the same thread?

[davidcyp]

The only thing I store is an InheritableThreadLocal which contains the same value for all Messages which are processed by the same thread.

An example. Suppose we have incoming messages on different working threads. On the worker thread, I create a threadlocal containing the value for the 'destination' header ( I do this because we apply a security check on these threads, and the security setup is related to the 'destination'.)

All messages on the worker threads are then routed to their single 'dedicated thread', the threadlocal variable is passed to that dedicated thread, but because the routing mechanism only routes threads with the same 'destination' to the dedicated thread, it actually stays the same. But in short: yes, I am storing something in an (inheritable)threadlocal, but this value is always the same and can't and may not be altered.

Message	Message headers	Incoming thread	Dedicated thread
MSG-1	destination=dedicatedThread1,..	Worker thread 3	dedicatedThread1
MSG-2	destination=dedicatedThread2,..	Worker thread 5	dedicatedThread2
MSG-3	destination=dedicatedThread1,..	Worker thread 9	dedicatedThread1

[DebugMeNot]

I don't use scoped-proxy. We (ab)use the "invalid scope" for some integration tests, but not in production code.