Routemaster Client v0.3.0 Routemaster.Drain.EventState View Source

Persisted data.

Each EventState is associated to the URL of a resource and stores the timestamp of the latest Drain event received for that URL.

They are stored in Redis, with the URL acting as key.

They are used to keep track of the most recent event for a resource and to filter out stale events receivied out of order.

Link to this section Summary

Functions

Checks if a Routemaster.Drain.Event is more recent than the previous received events for the same URL (for the same resource)

Looks up and EventState struct in Redis by URL. If nothing is found, it returns a null struct with timestamp equal to zero which will be considered older than any real data

Given a Routemaster.Drain.Event, it stores an EventState in Redis with the event URL and timestamp

Link to this section Types

Link to this section Functions

Checks if a Routemaster.Drain.Event is more recent than the previous received events for the same URL (for the same resource).

In practical terms, it compares the timestamp r of the event with the stored timestamp of the most recent previously received event.

Looks up and EventState struct in Redis by URL. If nothing is found, it returns a null struct with timestamp equal to zero which will be considered older than any real data.

Given a Routemaster.Drain.Event, it stores an EventState in Redis with the event URL and timestamp.