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feat: add graphql

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This commit is contained in:
Jon Lundy
2022-08-07 11:55:49 -06:00
parent f436393965
commit 82f23ae323
20 changed files with 5234 additions and 170 deletions
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58
pkg/es/driver/disk-store/disk-store.go
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@@ -53,11 +53,9 @@ func (es *diskStore) Save(ctx context.Context, agg event.Aggregate) (uint64, err
}
var last uint64
if last, err = l.w.LastIndex(); err != nil {
if last, err = l.LastIndex(); err != nil {
return 0, err
}
if agg.StreamVersion() != last {
return 0, fmt.Errorf("current version wrong %d != %d", agg.StreamVersion(), last)
}
@@ -75,7 +73,7 @@ func (es *diskStore) Save(ctx context.Context, agg event.Aggregate) (uint64, err
batch.Write(e.EventMeta().Position, b)
}
err = l.w.WriteBatch(batch)
err = l.WriteBatch(batch)
if err != nil {
return 0, err
}
@@ -92,8 +90,7 @@ func (es *diskStore) Append(ctx context.Context, streamID string, events event.E
}
var last uint64
if last, err = l.w.LastIndex(); err != nil {
if last, err = l.LastIndex(); err != nil {
return 0, err
}
@@ -111,7 +108,7 @@ func (es *diskStore) Append(ctx context.Context, streamID string, events event.E
batch.Write(pos, b)
}
err = l.w.WriteBatch(batch)
err = l.WriteBatch(batch)
if err != nil {
return 0, err
}
@@ -125,22 +122,20 @@ func (es *diskStore) Load(ctx context.Context, agg event.Aggregate) error {
var i, first, last uint64
if first, err = l.w.FirstIndex(); err != nil {
if first, err = l.FirstIndex(); err != nil {
return err
}
if last, err = l.w.LastIndex(); err != nil {
if last, err = l.LastIndex(); err != nil {
return err
}
if first == 0 || last == 0 {
return nil
}
var b []byte
events := make([]event.Event, last-i)
for i = 0; first+i <= last; i++ {
b, err = l.w.Read(first + i)
b, err = l.Read(first + i)
if err != nil {
return err
}
@@ -149,7 +144,6 @@ func (es *diskStore) Load(ctx context.Context, agg event.Aggregate) error {
return err
}
}
event.Append(agg, events...)
return nil
@@ -161,14 +155,12 @@ func (es *diskStore) Read(ctx context.Context, streamID string, pos, count int64
}
var first, last, start uint64
if first, err = l.w.FirstIndex(); err != nil {
if first, err = l.FirstIndex(); err != nil {
return nil, err
}
if last, err = l.w.LastIndex(); err != nil {
if last, err = l.LastIndex(); err != nil {
return nil, err
}
if first == 0 || last == 0 {
return nil, nil
}
@@ -190,7 +182,7 @@ func (es *diskStore) Read(ctx context.Context, streamID string, pos, count int64
for i := range events {
var b []byte
b, err = l.w.Read(start)
b, err = l.Read(start)
if err != nil {
return events, err
}
@@ -209,25 +201,25 @@ func (es *diskStore) Read(ctx context.Context, streamID string, pos, count int64
break
}
}
event.SetStreamID(streamID, events...)
return events, nil
}
func (es *diskStore) readLog(name string) (*eventLog, error) {
return newEventLog(name, filepath.Join(es.path, name))
func (es *diskStore) FirstIndex(ctx context.Context, streamID string) (uint64, error) {
l, err := es.readLog(streamID)
if err != nil {
return 0, err
}
return l.FirstIndex()
}
func (es *diskStore) LastIndex(ctx context.Context, streamID string) (uint64, error) {
l, err := es.readLog(streamID)
if err != nil {
return 0, err
}
return l.LastIndex()
}
type eventLog struct {
name string
path string
w *wal.Log
}
func newEventLog(name, path string) (*eventLog, error) {
var err error
el := &eventLog{name: name, path: path}
el.w, err = wal.Open(path, wal.DefaultOptions)
return el, err
func (es *diskStore) readLog(name string) (*wal.Log, error) {
return wal.Open(filepath.Join(es.path, name), wal.DefaultOptions)
}