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feat: add projection layer to eventstore

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This commit is contained in:
Jon Lundy
2022-09-06 10:35:14 -06:00
parent f65e9ca666
commit 063dca997f
24 changed files with 493 additions and 220 deletions
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28
pkg/es/driver/disk-store/disk-store.go
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@@ -11,7 +11,7 @@ import (
"go.opentelemetry.io/otel/metric/instrument/syncint64"
"go.uber.org/multierr"
"github.com/sour-is/ev/internal/logz"
"github.com/sour-is/ev/internal/lg"
"github.com/sour-is/ev/pkg/cache"
"github.com/sour-is/ev/pkg/es"
"github.com/sour-is/ev/pkg/es/driver"
@@ -38,10 +38,10 @@ const AppendOnly = es.AppendOnly
const AllEvents = es.AllEvents
func Init(ctx context.Context) error {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
m := logz.Meter(ctx)
m := lg.Meter(ctx)
var err, errs error
Mdisk_open, err := m.SyncInt64().Counter("disk_open")
@@ -61,7 +61,7 @@ func Init(ctx context.Context) error {
var _ driver.Driver = (*diskStore)(nil)
func (d *diskStore) Open(ctx context.Context, dsn string) (driver.Driver, error) {
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
d.Mdisk_open.Add(ctx, 1)
@@ -82,11 +82,11 @@ func (d *diskStore) Open(ctx context.Context, dsn string) (driver.Driver, error)
}
}
c, err := cache.NewWithEvict(CachSize, func(ctx context.Context, s string, l *lockedWal) {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
l.Modify(ctx, func(w *wal.Log) error {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
d.Mdisk_evict.Add(ctx, 1)
@@ -112,13 +112,13 @@ func (d *diskStore) Open(ctx context.Context, dsn string) (driver.Driver, error)
}, nil
}
func (d *diskStore) EventLog(ctx context.Context, streamID string) (driver.EventLog, error) {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
el := &eventLog{streamID: streamID}
return el, d.openlogs.Modify(ctx, func(openlogs *openlogs) error {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
if events, ok := openlogs.logs.Get(streamID); ok {
@@ -145,14 +145,14 @@ type eventLog struct {
var _ driver.EventLog = (*eventLog)(nil)
func (e *eventLog) Append(ctx context.Context, events event.Events, version uint64) (uint64, error) {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
event.SetStreamID(e.streamID, events...)
var count uint64
err := e.events.Modify(ctx, func(l *wal.Log) error {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
last, err := l.LastIndex()
@@ -190,13 +190,13 @@ func (e *eventLog) Append(ctx context.Context, events event.Events, version uint
return count, err
}
func (e *eventLog) Read(ctx context.Context, pos, count int64) (event.Events, error) {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
var events event.Events
err := e.events.Modify(ctx, func(stream *wal.Log) error {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
first, err := stream.FirstIndex()
@@ -259,7 +259,7 @@ func (e *eventLog) Read(ctx context.Context, pos, count int64) (event.Events, er
return events, nil
}
func (e *eventLog) FirstIndex(ctx context.Context) (uint64, error) {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
var idx uint64
@@ -273,7 +273,7 @@ func (e *eventLog) FirstIndex(ctx context.Context) (uint64, error) {
return idx, err
}
func (e *eventLog) LastIndex(ctx context.Context) (uint64, error) {
_, span := logz.Span(ctx)
_, span := lg.Span(ctx)
defer span.End()
var idx uint64