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26d1563643
* feat(api): feature API proto definitions * update proto based on discussion with @livio-a * cleanup old feature flag stuff * authz instance queries * align defaults * projection definitions * define commands and event reducers * implement system and instance setter APIs * api getter implementation * unit test repository package * command unit tests * unit test Get queries * grpc converter unit tests * migrate the V1 features * migrate oidc to dynamic features * projection unit test * fix instance by host * fix instance by id data type in sql * fix linting errors * add system projection test * fix behavior inversion * resolve proto file comments * rename SystemDefaultLoginInstanceEventType to SystemLoginDefaultOrgEventType so it's consistent with the instance level event * use write models and conditional set events * system features integration tests * instance features integration tests * error on empty request * documentation entry * typo in feature.proto * fix start unit tests * solve linting error on key case switch * remove system defaults after discussion with @eliobischof * fix system feature projection * resolve comments in defaults.yaml --------- Co-authored-by: Livio Spring <livio.a@gmail.com>
50 lines
1.4 KiB
Go
50 lines
1.4 KiB
Go
package eventstore
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import "time"
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// ReadModel is the minimum representation of a read model.
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// It implements a basic reducer
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// it might be saved in a database or in memory
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type ReadModel struct {
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AggregateID string `json:"-"`
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ProcessedSequence uint64 `json:"-"`
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CreationDate time.Time `json:"-"`
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ChangeDate time.Time `json:"-"`
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Events []Event `json:"-"`
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ResourceOwner string `json:"-"`
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InstanceID string `json:"-"`
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}
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// AppendEvents adds all the events to the read model.
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// The function doesn't compute the new state of the read model
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func (rm *ReadModel) AppendEvents(events ...Event) {
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rm.Events = append(rm.Events, events...)
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}
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// Reduce is the basic implementation of reducer
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// If this function is extended the extending function should be the last step
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func (rm *ReadModel) Reduce() error {
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if len(rm.Events) == 0 {
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return nil
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}
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if rm.AggregateID == "" {
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rm.AggregateID = rm.Events[0].Aggregate().ID
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}
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if rm.ResourceOwner == "" {
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rm.ResourceOwner = rm.Events[0].Aggregate().ResourceOwner
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}
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if rm.InstanceID == "" {
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rm.InstanceID = rm.Events[0].Aggregate().InstanceID
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}
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if rm.CreationDate.IsZero() {
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rm.CreationDate = rm.Events[0].CreatedAt()
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}
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rm.ChangeDate = rm.Events[len(rm.Events)-1].CreatedAt()
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rm.ProcessedSequence = rm.Events[len(rm.Events)-1].Sequence()
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// all events processed and not needed anymore
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rm.Events = rm.Events[0:0]
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return nil
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}
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