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b5564572bc
This implementation increases parallel write capabilities of the eventstore. Please have a look at the technical advisories: [05](https://zitadel.com/docs/support/advisory/a10005) and [06](https://zitadel.com/docs/support/advisory/a10006). The implementation of eventstore.push is rewritten and stored events are migrated to a new table `eventstore.events2`. If you are using cockroach: make sure that the database user of ZITADEL has `VIEWACTIVITY` grant. This is used to query events.
123 lines
3.2 KiB
Go
123 lines
3.2 KiB
Go
package repository
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import (
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"database/sql"
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"encoding/json"
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"time"
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"github.com/zitadel/zitadel/internal/eventstore"
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)
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var _ eventstore.Event = (*Event)(nil)
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// Event represents all information about a manipulation of an aggregate
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type Event struct {
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//ID is a generated uuid for this event
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ID string
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// Seq is the sequence of the event
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Seq uint64
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// Pos is the global sequence of the event multiple events can have the same sequence
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Pos float64
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//CreationDate is the time the event is created
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// it's used for human readability.
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// Don't use it for event ordering,
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// time drifts in different services could cause integrity problems
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CreationDate time.Time
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// Typ describes the cause of the event (e.g. user.added)
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// it should always be in past-form
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Typ eventstore.EventType
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//Data describe the changed fields (e.g. userName = "hodor")
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// data must always a pointer to a struct, a struct or a byte array containing json bytes
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Data []byte
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//EditorUser should be a unique identifier for the user which created the event
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// it's meant for maintainability.
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// It's recommend to use the aggregate id of the user
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EditorUser string
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//Version describes the definition of the aggregate at a certain point in time
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// it's used in read models to reduce the events in the correct definition
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Version eventstore.Version
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//AggregateID id is the unique identifier of the aggregate
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// the client must generate it by it's own
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AggregateID string
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//AggregateType describes the meaning of the aggregate for this event
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// it could an object like user
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AggregateType eventstore.AggregateType
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//ResourceOwner is the organisation which owns this aggregate
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// an aggregate can only be managed by one organisation
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// use the ID of the org
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ResourceOwner sql.NullString
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//InstanceID is the instance where this event belongs to
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// use the ID of the instance
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InstanceID string
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Constraints []*eventstore.UniqueConstraint
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}
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// Aggregate implements [eventstore.Event]
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func (e *Event) Aggregate() *eventstore.Aggregate {
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return &eventstore.Aggregate{
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ID: e.AggregateID,
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Type: e.AggregateType,
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ResourceOwner: e.ResourceOwner.String,
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InstanceID: e.InstanceID,
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Version: e.Version,
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}
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}
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// Creator implements [eventstore.Event]
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func (e *Event) Creator() string {
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return e.EditorUser
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}
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// Type implements [eventstore.Event]
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func (e *Event) Type() eventstore.EventType {
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return e.Typ
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}
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// Revision implements [eventstore.Event]
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func (e *Event) Revision() uint16 {
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return 0
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}
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// Sequence implements [eventstore.Event]
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func (e *Event) Sequence() uint64 {
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return e.Seq
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}
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// Position implements [eventstore.Event]
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func (e *Event) Position() float64 {
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return e.Pos
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}
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// CreatedAt implements [eventstore.Event]
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func (e *Event) CreatedAt() time.Time {
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return e.CreationDate
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}
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// Unmarshal implements [eventstore.Event]
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func (e *Event) Unmarshal(ptr any) error {
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if len(e.Data) == 0 {
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return nil
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}
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return json.Unmarshal(e.Data, ptr)
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}
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// DataAsBytes implements [eventstore.Event]
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func (e *Event) DataAsBytes() []byte {
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return e.Data
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}
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func (e *Event) Payload() any {
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return e.Data
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}
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func (e *Event) UniqueConstraints() []*eventstore.UniqueConstraint {
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return e.Constraints
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}
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