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event.go
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event.go
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package processor
import (
"context"
"time"
"github.com/kyma-incubator/compass/components/director/pkg/log"
"github.com/kyma-incubator/compass/components/director/internal/domain/tenant"
"github.com/kyma-incubator/compass/components/director/internal/model"
"github.com/kyma-incubator/compass/components/director/pkg/persistence"
"github.com/kyma-incubator/compass/components/director/pkg/resource"
"github.com/kyma-incubator/compass/components/director/pkg/str"
"github.com/pkg/errors"
)
// EventService is responsible for the service-layer Event operations.
//
//go:generate mockery --name=EventService --output=automock --outpkg=automock --case=underscore --disable-version-string
type EventService interface {
Create(ctx context.Context, resourceType resource.Type, resourceID string, bundleID, packageID *string, in model.EventDefinitionInput, specs []*model.SpecInput, bundleIDs []string, eventHash uint64, defaultBundleID string) (string, error)
UpdateInManyBundles(ctx context.Context, resourceType resource.Type, id string, packageID *string, in model.EventDefinitionInput, specIn *model.SpecInput, bundleIDsFromBundleReference, bundleIDsForCreation, bundleIDsForDeletion []string, eventHash uint64, defaultBundleID string) error
Delete(ctx context.Context, resourceType resource.Type, id string) error
ListByApplicationID(ctx context.Context, appID string) ([]*model.EventDefinition, error)
ListByApplicationTemplateVersionID(ctx context.Context, appTemplateVersionID string) ([]*model.EventDefinition, error)
}
// EventProcessor defines event processor
type EventProcessor struct {
transact persistence.Transactioner
eventSvc EventService
entityTypeSvc EntityTypeService
entityTypeMappingSvc EntityTypeMappingService
bundleReferenceSvc BundleReferenceService
specSvc SpecService
}
// NewEventProcessor creates new instance of EventProcessor
func NewEventProcessor(transact persistence.Transactioner, eventSvc EventService, entityTypeSvc EntityTypeService, entityTypeMappingSvc EntityTypeMappingService, bundleReferenceSvc BundleReferenceService, specSvc SpecService) *EventProcessor {
return &EventProcessor{
transact: transact,
eventSvc: eventSvc,
entityTypeSvc: entityTypeSvc,
entityTypeMappingSvc: entityTypeMappingSvc,
bundleReferenceSvc: bundleReferenceSvc,
specSvc: specSvc,
}
}
// Process re-syncs the events passed as an argument.
func (ep *EventProcessor) Process(ctx context.Context, resourceType resource.Type, resourceID string, bundlesFromDB []*model.Bundle, packagesFromDB []*model.Package, events []*model.EventDefinitionInput, resourceHashes map[string]uint64) ([]*model.EventDefinition, []*OrdFetchRequest, error) {
eventsFromDB, err := ep.listEventsInTx(ctx, resourceType, resourceID)
if err != nil {
return nil, nil, err
}
fetchRequests := make([]*OrdFetchRequest, 0)
for _, event := range events {
eventHash := resourceHashes[str.PtrStrToStr(event.OrdID)]
eventFetchRequests, err := ep.resyncEventInTx(ctx, resourceType, resourceID, eventsFromDB, bundlesFromDB, packagesFromDB, event, eventHash)
if err != nil {
return nil, nil, err
}
for i := range eventFetchRequests {
fetchRequests = append(fetchRequests, &OrdFetchRequest{
FetchRequest: eventFetchRequests[i],
RefObjectOrdID: *event.OrdID,
})
}
}
eventsFromDB, err = ep.listEventsInTx(ctx, resourceType, resourceID)
if err != nil {
return nil, nil, err
}
return eventsFromDB, fetchRequests, nil
}
func (ep *EventProcessor) listEventsInTx(ctx context.Context, resourceType resource.Type, resourceID string) ([]*model.EventDefinition, error) {
tx, err := ep.transact.Begin()
if err != nil {
return nil, err
}
defer ep.transact.RollbackUnlessCommitted(ctx, tx)
ctx = persistence.SaveToContext(ctx, tx)
var eventsFromDB []*model.EventDefinition
switch resourceType {
case resource.Application:
eventsFromDB, err = ep.eventSvc.ListByApplicationID(ctx, resourceID)
case resource.ApplicationTemplateVersion:
eventsFromDB, err = ep.eventSvc.ListByApplicationTemplateVersionID(ctx, resourceID)
}
if err != nil {
return nil, errors.Wrapf(err, "error while listing events for %s with id %q", resourceType, resourceID)
}
return eventsFromDB, tx.Commit()
}
func (ep *EventProcessor) resyncEventInTx(ctx context.Context, resourceType resource.Type, resourceID string, eventsFromDB []*model.EventDefinition, bundlesFromDB []*model.Bundle, packagesFromDB []*model.Package, event *model.EventDefinitionInput, eventHash uint64) ([]*model.FetchRequest, error) {
tx, err := ep.transact.Begin()
if err != nil {
return nil, err
}
defer ep.transact.RollbackUnlessCommitted(ctx, tx)
ctx = persistence.SaveToContext(ctx, tx)
fetchRequests, err := ep.resyncEvent(ctx, resourceType, resourceID, eventsFromDB, bundlesFromDB, packagesFromDB, *event, eventHash)
if err != nil {
return nil, errors.Wrapf(err, "error while resyncing event with ORD ID %q", *event.OrdID)
}
return fetchRequests, tx.Commit()
}
func (ep *EventProcessor) resyncEvent(ctx context.Context, resourceType resource.Type, resourceID string, eventsFromDB []*model.EventDefinition, bundlesFromDB []*model.Bundle, packagesFromDB []*model.Package, event model.EventDefinitionInput, eventHash uint64) ([]*model.FetchRequest, error) {
ctx = addFieldToLogger(ctx, "event_ord_id", *event.OrdID)
i, isEventFound := searchInSlice(len(eventsFromDB), func(i int) bool {
return equalStrings(eventsFromDB[i].OrdID, event.OrdID)
})
defaultConsumptionBundleID := extractDefaultConsumptionBundle(bundlesFromDB, event.DefaultConsumptionBundle)
bundleIDsFromBundleReference := make([]string, 0)
for _, br := range event.PartOfConsumptionBundles {
for _, bndl := range bundlesFromDB {
if equalStrings(bndl.OrdID, &br.BundleOrdID) {
bundleIDsFromBundleReference = append(bundleIDsFromBundleReference, bndl.ID)
}
}
}
var packageID *string
if i, found := searchInSlice(len(packagesFromDB), func(i int) bool {
return equalStrings(&packagesFromDB[i].OrdID, event.OrdPackageID)
}); found {
packageID = &packagesFromDB[i].ID
}
specs := make([]*model.SpecInput, 0, len(event.ResourceDefinitions))
for _, resourceDef := range event.ResourceDefinitions {
specs = append(specs, resourceDef.ToSpec())
}
if !isEventFound {
currentTime := time.Now().Format(time.RFC3339)
event.LastUpdate = ¤tTime
eventID, err := ep.eventSvc.Create(ctx, resourceType, resourceID, nil, packageID, event, nil, bundleIDsFromBundleReference, eventHash, defaultConsumptionBundleID)
if err != nil {
return nil, err
}
err = ep.resyncEntityTypeMappings(ctx, resource.EventDefinition, eventID, event.EntityTypeMappings)
if err != nil {
return nil, err
}
return ep.createSpecs(ctx, model.EventSpecReference, eventID, specs, resourceType)
}
log.C(ctx).Infof("Calculate the newest lastUpdate time for Event")
newestLastUpdateTime, err := NewestLastUpdateTimestamp(event.LastUpdate, eventsFromDB[i].LastUpdate, eventsFromDB[i].ResourceHash, eventHash)
if err != nil {
return nil, errors.Wrap(err, "error while calculating the newest lastUpdate time for Event")
}
event.LastUpdate = newestLastUpdateTime
err = ep.resyncEntityTypeMappings(ctx, resource.EventDefinition, eventsFromDB[i].ID, event.EntityTypeMappings)
if err != nil {
return nil, err
}
allBundleIDsForEvent, err := ep.bundleReferenceSvc.GetBundleIDsForObject(ctx, model.BundleEventReference, &eventsFromDB[i].ID)
if err != nil {
return nil, err
}
// in case of Event update, we need to filter which ConsumptionBundleReferences(bundle IDs) should be deleted - those that are stored in db but not present in the input anymore
bundleIDsForDeletion := make([]string, 0)
for _, id := range allBundleIDsForEvent {
if _, found := searchInSlice(len(bundleIDsFromBundleReference), func(i int) bool {
return equalStrings(&bundleIDsFromBundleReference[i], &id)
}); !found {
bundleIDsForDeletion = append(bundleIDsForDeletion, id)
}
}
// in case of Event update, we need to filter which ConsumptionBundleReferences should be created - those that are not present in db but are present in the input
bundleIDsForCreation := make([]string, 0)
for _, id := range bundleIDsFromBundleReference {
if _, found := searchInSlice(len(allBundleIDsForEvent), func(i int) bool {
return equalStrings(&allBundleIDsForEvent[i], &id)
}); !found {
bundleIDsForCreation = append(bundleIDsForCreation, id)
}
}
if err = ep.eventSvc.UpdateInManyBundles(ctx, resourceType, eventsFromDB[i].ID, packageID, event, nil, bundleIDsFromBundleReference, bundleIDsForCreation, bundleIDsForDeletion, eventHash, defaultConsumptionBundleID); err != nil {
return nil, err
}
var fetchRequests []*model.FetchRequest
shouldFetchSpecs, err := checkIfShouldFetchSpecs(event.LastUpdate, eventsFromDB[i].LastUpdate)
if err != nil {
return nil, err
}
if shouldFetchSpecs {
fetchRequests, err = ep.resyncSpecs(ctx, model.EventSpecReference, eventsFromDB[i].ID, specs, resourceType)
if err != nil {
return nil, err
}
} else {
fetchRequests, err = ep.refetchFailedSpecs(ctx, resourceType, model.EventSpecReference, eventsFromDB[i].ID)
if err != nil {
return nil, err
}
}
return fetchRequests, nil
}
func (ep *EventProcessor) createSpecs(ctx context.Context, objectType model.SpecReferenceObjectType, objectID string, specs []*model.SpecInput, resourceType resource.Type) ([]*model.FetchRequest, error) {
fetchRequests := make([]*model.FetchRequest, 0)
for _, spec := range specs {
if spec == nil {
continue
}
_, fr, err := ep.specSvc.CreateByReferenceObjectIDWithDelayedFetchRequest(ctx, *spec, resourceType, objectType, objectID)
if err != nil {
return nil, err
}
fetchRequests = append(fetchRequests, fr)
}
return fetchRequests, nil
}
func (ep *EventProcessor) resyncSpecs(ctx context.Context, objectType model.SpecReferenceObjectType, objectID string, specs []*model.SpecInput, resourceType resource.Type) ([]*model.FetchRequest, error) {
if err := ep.specSvc.DeleteByReferenceObjectID(ctx, resourceType, objectType, objectID); err != nil {
return nil, err
}
return ep.createSpecs(ctx, objectType, objectID, specs, resourceType)
}
func (ep *EventProcessor) refetchFailedSpecs(ctx context.Context, resourceType resource.Type, objectType model.SpecReferenceObjectType, objectID string) ([]*model.FetchRequest, error) {
specIDsFromDB, err := ep.specSvc.ListIDByReferenceObjectID(ctx, resourceType, objectType, objectID)
if err != nil {
return nil, err
}
var (
fetchRequestsFromDB []*model.FetchRequest
tnt string
)
if resourceType.IsTenantIgnorable() {
fetchRequestsFromDB, err = ep.specSvc.ListFetchRequestsByReferenceObjectIDsGlobal(ctx, specIDsFromDB, objectType)
} else {
tnt, err = tenant.LoadFromContext(ctx)
if err != nil {
return nil, err
}
fetchRequestsFromDB, err = ep.specSvc.ListFetchRequestsByReferenceObjectIDs(ctx, tnt, specIDsFromDB, objectType)
}
if err != nil {
return nil, err
}
fetchRequests := make([]*model.FetchRequest, 0)
for _, fr := range fetchRequestsFromDB {
if fr.Status != nil && fr.Status.Condition != model.FetchRequestStatusConditionSucceeded {
fetchRequests = append(fetchRequests, fr)
}
}
return fetchRequests, nil
}
func (ep *EventProcessor) resyncEntityTypeMappings(ctx context.Context, resourceType resource.Type, resourceID string, entityTypeMappings []*model.EntityTypeMappingInput) error {
entityTypeMappingsFromDB, err := ep.entityTypeMappingSvc.ListByOwnerResourceID(ctx, resourceID, resourceType)
if err != nil {
return errors.Wrapf(err, "error while listing entity type mappings for %s with id %q", resourceType, resourceID)
}
for _, entityTypeMappingFromDB := range entityTypeMappingsFromDB {
err := ep.entityTypeMappingSvc.Delete(ctx, resourceType, entityTypeMappingFromDB.ID)
if err != nil {
return err
}
}
for _, entityTypeMapping := range entityTypeMappings {
_, err := ep.entityTypeMappingSvc.Create(ctx, resourceType, resourceID, entityTypeMapping)
if err != nil {
return err
}
}
return nil
}