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feat: add resolvelinks

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This commit is contained in:
Jon Lundy
2022-10-30 09:18:08 -06:00
parent 5bf052580f
commit 6569c58e37
18 changed files with 421 additions and 106 deletions
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70
pkg/es/driver/mem-store/mem-store.go
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@@ -49,7 +49,7 @@ func (m *memstore) EventLog(ctx context.Context, streamID string) (driver.EventL
el := &eventLog{streamID: streamID}
err := m.state.Modify(ctx, func(state *state) error {
err := m.state.Modify(ctx, func(ctx context.Context, state *state) error {
_, span := lg.Span(ctx)
defer span.End()
@@ -76,7 +76,7 @@ func (m *eventLog) Append(ctx context.Context, events event.Events, version uint
event.SetStreamID(m.streamID, events...)
return uint64(len(events)), m.events.Modify(ctx, func(stream *event.Events) error {
return uint64(len(events)), m.events.Modify(ctx, func(ctx context.Context, stream *event.Events) error {
_, span := lg.Span(ctx)
defer span.End()
@@ -111,6 +111,23 @@ func (m *eventLog) Append(ctx context.Context, events event.Events, version uint
})
}
// ReadOne implements readone
func (m *eventLog) ReadN(ctx context.Context, index ...uint64) (event.Events, error) {
_, span := lg.Span(ctx)
defer span.End()
var events event.Events
err := m.events.Modify(ctx, func(ctx context.Context, stream *event.Events) error {
var err error
events, err = readStreamN(ctx, stream, index...)
return err
})
return events, err
}
// Read implements driver.EventStore
func (m *eventLog) Read(ctx context.Context, after int64, count int64) (event.Events, error) {
ctx, span := lg.Span(ctx)
@@ -118,7 +135,7 @@ func (m *eventLog) Read(ctx context.Context, after int64, count int64) (event.Ev
var events event.Events
err := m.events.Modify(ctx, func(stream *event.Events) error {
err := m.events.Modify(ctx, func(ctx context.Context, stream *event.Events) error {
_, span := lg.Span(ctx)
defer span.End()
@@ -141,12 +158,8 @@ func (m *eventLog) Read(ctx context.Context, after int64, count int64) (event.Ev
span.AddEvent(fmt.Sprintf("read event %d of %d", i, math.Abs(count)))
// --- clone event
e := (*stream)[start-1]
b, err := event.MarshalBinary(e)
if err != nil {
return err
}
events[i], err = event.UnmarshalBinary(ctx, b, e.EventMeta().Position)
var err error
events[i], err = readStream(ctx, stream, start)
if err != nil {
return err
}
@@ -194,3 +207,42 @@ func (m *eventLog) LastIndex(ctx context.Context) (uint64, error) {
func (m *eventLog) LoadForUpdate(ctx context.Context, a event.Aggregate, fn func(context.Context, event.Aggregate) error) (uint64, error) {
panic("not implemented")
}
func readStream(ctx context.Context, stream *event.Events, index uint64) (event.Event, error) {
_, span := lg.Span(ctx)
defer span.End()
var b []byte
var err error
e := (*stream)[index-1]
b, err = event.MarshalBinary(e)
if err != nil {
return nil, err
}
e, err = event.UnmarshalBinary(ctx, b, e.EventMeta().Position)
if err != nil {
return nil, err
}
return e, err
}
func readStreamN(ctx context.Context, stream *event.Events, index ...uint64) (event.Events, error) {
_, span := lg.Span(ctx)
defer span.End()
var b []byte
var err error
events := make(event.Events, len(index))
for i, index := range index {
e := (*stream)[index-1]
b, err = event.MarshalBinary(e)
if err != nil {
return nil, err
}
events[i], err = event.UnmarshalBinary(ctx, b, e.EventMeta().Position)
if err != nil {
return nil, err
}
}
return events, err
}