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SilvanandGitHub
dd5e4acd24
* start sub * start implement subsciptions * start subscription * implementation for member done * admin done * fix: tests * extend handlers * prepary notification * no errors in adminapi * changed current sequence in all packages * ignore mocks * works * subscriptions as singleton * tests * refactor: rename function scope var
59 lines
1.8 KiB
Go
Executable File
59 lines
1.8 KiB
Go
Executable File
package query
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import (
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"context"
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"time"
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"github.com/caos/logging"
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"github.com/caos/zitadel/internal/eventstore"
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"github.com/caos/zitadel/internal/eventstore/models"
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)
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type Handler interface {
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ViewModel() string
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EventQuery() (*models.SearchQuery, error)
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Reduce(*models.Event) error
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OnError(event *models.Event, err error) error
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OnSuccess() error
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MinimumCycleDuration() time.Duration
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QueryLimit() uint64
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AggregateTypes() []models.AggregateType
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CurrentSequence(*models.Event) (uint64, error)
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Eventstore() eventstore.Eventstore
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}
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func ReduceEvent(handler Handler, event *models.Event) {
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currentSequence, err := handler.CurrentSequence(event)
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if err != nil {
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logging.Log("HANDL-BmpkC").WithError(err).Warn("unable to get current sequence")
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return
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}
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if event.PreviousSequence > currentSequence {
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searchQuery := models.NewSearchQuery().
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AggregateTypeFilter(handler.AggregateTypes()...).
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SequenceBetween(currentSequence, event.PreviousSequence)
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events, err := handler.Eventstore().FilterEvents(context.Background(), searchQuery)
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if err != nil {
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logging.LogWithFields("HANDL-L6YH1", "seq", event.Sequence).Warn("filter failed")
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return
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}
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for _, previousEvent := range events {
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//if other process already updated view
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//TODO: correct?
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if event.PreviousSequence > previousEvent.Sequence {
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continue
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}
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err = handler.Reduce(previousEvent)
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logging.LogWithFields("HANDL-V42TI", "seq", previousEvent.Sequence).OnError(err).Warn("reduce failed")
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return
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}
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} else if event.PreviousSequence > 0 && event.PreviousSequence < currentSequence {
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logging.LogWithFields("HANDL-w9Bdy", "previousSeq", event.PreviousSequence, "currentSeq", currentSequence).Debug("already processed")
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return
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}
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err = handler.Reduce(event)
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logging.LogWithFields("HANDL-wQDL2", "seq", event.Sequence).OnError(err).Warn("reduce failed")
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}
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