[Scheduler] Make MessageGenerator
yield some scheduling context
#50130
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This PR introduces a new
MessageContext
thatMessageGenerator
should use as key when yielding messages to provide more context about the scheduled message.The consumer of the scheduled messages can decide to use it or not.
The PR also adds the wiring to add this context to the
ScheduledStamp
when using Scheduler within Messenger.This allows to add more context but without introducing a hard dependency on Messenger.
/cc @kbond
Note: this PR is not adding the scheduler name (cf #49864) because I don't know exactly where to wire it yet but I don't see anything preventing it to be added to the context once we know where it should belong.