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feat: instance remove (#4345)

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* feat(instance): add remove instance event with projections cleanup

* fix(instance): corrected used id to clean up projections

* fix merge

* fix: correct unit test projection names

* fix: current sequence of lists and query for ensuring keypair based projections

Co-authored-by: Livio Spring <livio.a@gmail.com>
Co-authored-by: Fabi <38692350+hifabienne@users.noreply.github.com>
This commit is contained in:
Stefan Benz
2022-10-20 13:36:52 +01:00
committed by GitHub
parent 6e89b7d0a1
commit c2a5b785fb
90 changed files with 1549 additions and 427 deletions
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20
internal/eventstore/handler/handler_projection.go
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@@ -23,20 +23,20 @@ type ProjectionHandlerConfig struct {
ConcurrentInstances uint
}
//Update updates the projection with the given statements
// Update updates the projection with the given statements
type Update func(context.Context, []*Statement, Reduce) (index int, err error)
//Reduce reduces the given event to a statement
//which is used to update the projection
// Reduce reduces the given event to a statement
// which is used to update the projection
type Reduce func(eventstore.Event) (*Statement, error)
//SearchQuery generates the search query to lookup for events
// SearchQuery generates the search query to lookup for events
type SearchQuery func(ctx context.Context, instanceIDs []string) (query *eventstore.SearchQueryBuilder, queryLimit uint64, err error)
//Lock is used for mutex handling if needed on the projection
// Lock is used for mutex handling if needed on the projection
type Lock func(context.Context, time.Duration, ...string) <-chan error
//Unlock releases the mutex of the projection
// Unlock releases the mutex of the projection
type Unlock func(...string) error
type ProjectionHandler struct {
@@ -93,8 +93,8 @@ func NewProjectionHandler(
return h
}
//Trigger handles all events for the provided instances (or current instance from context if non specified)
//by calling FetchEvents and Process until the amount of events is smaller than the BulkLimit
// Trigger handles all events for the provided instances (or current instance from context if non specified)
// by calling FetchEvents and Process until the amount of events is smaller than the BulkLimit
func (h *ProjectionHandler) Trigger(ctx context.Context, instances ...string) error {
ids := []string{authz.GetInstance(ctx).InstanceID()}
if len(instances) > 0 {
@@ -118,7 +118,7 @@ func (h *ProjectionHandler) Trigger(ctx context.Context, instances ...string) er
}
}
//Process handles multiple events by reducing them to statements and updating the projection
// Process handles multiple events by reducing them to statements and updating the projection
func (h *ProjectionHandler) Process(ctx context.Context, events ...eventstore.Event) (index int, err error) {
if len(events) == 0 {
return 0, nil
@@ -144,7 +144,7 @@ func (h *ProjectionHandler) Process(ctx context.Context, events ...eventstore.Ev
return index, err
}
//FetchEvents checks the current sequences and filters for newer events
// FetchEvents checks the current sequences and filters for newer events
func (h *ProjectionHandler) FetchEvents(ctx context.Context, instances ...string) ([]eventstore.Event, bool, error) {
eventQuery, eventsLimit, err := h.searchQuery(ctx, instances)
if err != nil {