sour-is/ev
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

feat: add resolvelinks

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

86
pkg/es/driver/disk-store/disk-store.go
View File

@@ -94,7 +94,7 @@ func (d *diskStore) Open(ctx context.Context, dsn string) (driver.Driver, error)
_, span := lg.Span(ctx)
defer span.End()
l.Modify(ctx, func(w *wal.Log) error {
l.Modify(ctx, func(ctx context.Context, w *wal.Log) error {
_, span := lg.Span(ctx)
defer span.End()
@@ -128,7 +128,7 @@ func (d *diskStore) EventLog(ctx context.Context, streamID string) (driver.Event
el := &eventLog{streamID: streamID, diskStore: d}
return el, d.openlogs.Modify(ctx, func(openlogs *openlogs) error {
return el, d.openlogs.Modify(ctx, func(ctx context.Context, openlogs *openlogs) error {
_, span := lg.Span(ctx)
defer span.End()
@@ -166,7 +166,7 @@ func (e *eventLog) Append(ctx context.Context, events event.Events, version uint
event.SetStreamID(e.streamID, events...)
var count uint64
err := e.events.Modify(ctx, func(l *wal.Log) error {
err := e.events.Modify(ctx, func(ctx context.Context, l *wal.Log) error {
_, span := lg.Span(ctx)
defer span.End()
@@ -215,7 +215,7 @@ func (e *eventLog) Read(ctx context.Context, after, count int64) (event.Events,
var events event.Events
err := e.events.Modify(ctx, func(stream *wal.Log) error {
err := e.events.Modify(ctx, func(ctx context.Context, stream *wal.Log) error {
_, span := lg.Span(ctx)
defer span.End()
@@ -244,17 +244,7 @@ func (e *eventLog) Read(ctx context.Context, after, count int64) (event.Events,
span.AddEvent(fmt.Sprintf("read event %d of %d", i, len(events)))
// ---
var b []byte
b, err = stream.Read(start)
if err != nil {
if errors.Is(err, wal.ErrNotFound) || errors.Is(err, wal.ErrOutOfRange) {
err = fmt.Errorf("%w: empty", es.ErrNotFound)
}
span.RecordError(err)
return err
}
events[i], err = event.UnmarshalBinary(ctx, b, start)
events[i], err = readStream(ctx, stream, start)
if err != nil {
span.RecordError(err)
return err
@@ -283,6 +273,21 @@ func (e *eventLog) Read(ctx context.Context, after, count int64) (event.Events,
return events, nil
}
func (e *eventLog) ReadN(ctx context.Context, index ...uint64) (event.Events, error) {
_, span := lg.Span(ctx)
defer span.End()
var events event.Events
err := e.events.Modify(ctx, func(ctx context.Context, stream *wal.Log) error {
var err error
events, err = readStreamN(ctx, stream, index...)
return err
})
return events, err
}
func (e *eventLog) FirstIndex(ctx context.Context) (uint64, error) {
_, span := lg.Span(ctx)
defer span.End()
@@ -290,7 +295,7 @@ func (e *eventLog) FirstIndex(ctx context.Context) (uint64, error) {
var idx uint64
var err error
err = e.events.Modify(ctx, func(events *wal.Log) error {
err = e.events.Modify(ctx, func(ctx context.Context, events *wal.Log) error {
idx, err = events.FirstIndex()
return err
})
@@ -304,7 +309,7 @@ func (e *eventLog) LastIndex(ctx context.Context) (uint64, error) {
var idx uint64
var err error
err = e.events.Modify(ctx, func(events *wal.Log) error {
err = e.events.Modify(ctx, func(ctx context.Context, events *wal.Log) error {
idx, err = events.LastIndex()
return err
})
@@ -314,3 +319,50 @@ func (e *eventLog) LastIndex(ctx context.Context) (uint64, error) {
func (e *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 *wal.Log, index uint64) (event.Event, error) {
_, span := lg.Span(ctx)
defer span.End()
var b []byte
var err error
b, err = stream.Read(index)
if err != nil {
if errors.Is(err, wal.ErrNotFound) || errors.Is(err, wal.ErrOutOfRange) {
err = fmt.Errorf("%w: empty", es.ErrNotFound)
}
span.RecordError(err)
return nil, err
}
e, err := event.UnmarshalBinary(ctx, b, index)
if err != nil {
span.RecordError(err)
return nil, err
}
return e, err
}
func readStreamN(ctx context.Context, stream *wal.Log, 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, idx := range index {
b, err = stream.Read(idx)
if err != nil {
if errors.Is(err, wal.ErrNotFound) || errors.Is(err, wal.ErrOutOfRange) {
err = fmt.Errorf("%w: empty", es.ErrNotFound)
}
span.RecordError(err)
return nil, err
}
events[i], err = event.UnmarshalBinary(ctx, b, idx)
if err != nil {
span.RecordError(err)
return nil, err
}
}
return events, err
}