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feat: pub sub (#1341)

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* fix: pub sub

* fix: adaot config to commands (and queries)

* remove dependency on vv2 in v1

* fix: pub sub in new eventstore

* fix tests

Co-authored-by: Livio Amstutz <livio.a@gmail.com>
This commit is contained in:
Fabi
2021-02-24 13:24:33 +01:00
committed by GitHub
parent 8dcbbc87ca
commit c0f55e7209
14 changed files with 124 additions and 723 deletions
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60
internal/eventstore/v1/sdk/sdk.go
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@@ -10,7 +10,6 @@ import (
type filterFunc func(context.Context, *es_models.SearchQuery) ([]*es_models.Event, error)
type appendFunc func(...*es_models.Event) error
type AggregateFunc func(context.Context) (*es_models.Aggregate, error)
type pushFunc func(context.Context, ...*es_models.Aggregate) error
func Filter(ctx context.Context, filter filterFunc, appender appendFunc, query *es_models.SearchQuery) error {
events, err := filter(ctx, query)
@@ -26,62 +25,3 @@ func Filter(ctx context.Context, filter filterFunc, appender appendFunc, query *
}
return nil
}
// Push is Deprecated use PushAggregates
// Push creates the aggregates from aggregater
// and pushes the aggregates to the given pushFunc
// the given events are appended by the appender
func Push(ctx context.Context, push pushFunc, appender appendFunc, aggregaters ...AggregateFunc) (err error) {
if len(aggregaters) < 1 {
return errors.ThrowPreconditionFailed(nil, "SDK-q9wjp", "Errors.Internal")
}
aggregates, err := makeAggregates(ctx, aggregaters)
if err != nil {
return err
}
err = push(ctx, aggregates...)
if err != nil {
return err
}
return appendAggregates(appender, aggregates)
}
func PushAggregates(ctx context.Context, push pushFunc, appender appendFunc, aggregates ...*es_models.Aggregate) (err error) {
if len(aggregates) < 1 {
return errors.ThrowPreconditionFailed(nil, "SDK-q9wjp", "Errors.Internal")
}
err = push(ctx, aggregates...)
if err != nil {
return err
}
if appender == nil {
return nil
}
return appendAggregates(appender, aggregates)
}
func appendAggregates(appender appendFunc, aggregates []*es_models.Aggregate) error {
for _, aggregate := range aggregates {
err := appender(aggregate.Events...)
if err != nil {
return ThrowAppendEventError(err, "SDK-o6kzK", "Errors.Internal")
}
}
return nil
}
func makeAggregates(ctx context.Context, aggregaters []AggregateFunc) (aggregates []*es_models.Aggregate, err error) {
aggregates = make([]*es_models.Aggregate, len(aggregaters))
for i, aggregater := range aggregaters {
aggregates[i], err = aggregater(ctx)
if err != nil {
return nil, err
}
}
return aggregates, nil
}