Commit Graph

18 Commits

Author SHA1 Message Date
Dan Upton ebdda4848f
streaming: split event buffer by key (#12080) 2022-01-28 12:27:00 +00:00
R.B. Boyer 1cef3c99c2
state: adjust streaming event generation to account for partitioned nodes (#10860)
Also re-enabled some tests that had to be disabled in the prior PR.
2021-08-17 16:49:26 -05:00
Daniel Nephin e4a78c977d stream: document that Payload must be immutable
If they are sent to EventPublisher.Publish.

Also document that PayloadEvents is expected to come from a subscription and that it is
not immutable.
2020-11-06 13:00:33 -05:00
Daniel Nephin 4fc073b1f4 stream: rename FilterByKey 2020-11-05 19:21:16 -05:00
Daniel Nephin d4cd2fa6a8 stream: Add HasReadPermission to Payload
Required now that filter is a method on PayloadEvents instead of Event
2020-11-05 19:17:18 -05:00
Daniel Nephin 8a26bca020 stream: move event filtering to PayloadEvents
Removes the weirdness around PayloadEvents.FilterByKey
2020-11-05 17:50:17 -05:00
Daniel Nephin dcacfd3548 stream: Remove unused method 2020-11-05 16:49:59 -05:00
Daniel Nephin 61ce0964a4 stream: remove Event.Key
Makes Payload a type with FilterByKey so that Payloads can implement
filtering by key. With this approach we don't need to expose a Namespace
field on Event, and we don't need to invest micro formats or require a
bunch of code to be aware of exactly how the key field is encoded.
2020-10-28 16:48:04 -04:00
Daniel Nephin ad29cf4f94 stream: Return a single event from a subscription.Next
Handle batch events as a single event
2020-10-06 13:18:20 -04:00
Daniel Nephin 0769f54fe1 stream: refactor to support change in framing events
Removing EndOfEmptySnapshot, add NewSnapshotToFollow
2020-10-02 13:41:31 -04:00
Daniel Nephin 2595436f62 stream: Improve docstrings
Also rename ResumeStrema to EndOfEmptySnapshot to be more consistent with other framing events

Co-authored-by: Paul Banks <banks@banksco.de>
2020-07-14 15:57:47 -04:00
Daniel Nephin 16a2b3fafc stream: change Topic to an interface
Consumers of the package can decide on which type to use for the Topic. In the future we may
use a gRPC type for the topic.
2020-07-14 15:57:47 -04:00
Daniel Nephin aa571bd0ce state: Move change processing out of EventPublisher
EventPublisher was receiving TopicHandlers, which had a couple of
problems:

- ChangeProcessors were being grouped by Topic, but they completely
  ignored the topic and were performed on every change
- ChangeProcessors required EventPublisher to be aware of database
  changes

By moving ChangeProcesors out of EventPublisher, and having Publish
accept events instead of changes, EventPublisher no longer needs to
be aware of these things.

Handlers is now only SnapshotHandlers, which are still mapped by Topic.

Also allows us to remove the small 'db' package that had only two types.
They can now be unexported types in state.
2020-07-14 15:57:47 -04:00
Daniel Nephin e1305fe80c stream: unexport identifiers
Now that EventPublisher is part of stream a lot of the internals can be hidden
2020-07-14 15:57:47 -04:00
Daniel Nephin 9e37894778 stream: Move EventPublisher to stream package
The EventPublisher is the central hub of the PubSub system. It is toughly coupled with much of
stream. Some stream internals were exported exclusively for EventPublisher.

The two Subscribe cases (with or without index) were also awkwardly split between two packages. By
moving EventPublisher into stream they are now both in the same package (although still in different files).
2020-07-14 15:57:47 -04:00
Daniel Nephin 6e87e83d77 state: Make handleACLUpdate async once again
So that we keep as much as possible out of the FSM commit hot path.
2020-07-14 15:57:47 -04:00
Daniel Nephin 2020e9c7c7 ProcessChanges: use stream.Event
Also remove secretHash, which was used to hash tokens. We don't expose
these tokens anywhere, so we can use the string itself instead of a
Hash.

Fix acl_events_test.go for storing a structs type.
2020-07-14 15:57:45 -04:00
Daniel Nephin 2e45bbbb3e stream: Use local types for Event Topic SubscriptionRequest 2020-07-14 15:57:45 -04:00