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datastore.go
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datastore.go
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package fnext
import (
"context"
"github.com/fnproject/fn/api/models"
)
// NewDatastore returns a Datastore that wraps the provided Datastore, calling any relevant
// listeners around any of the Datastore methods.
func NewDatastore(ds models.Datastore, al AppListener, fl FnListener, tl TriggerListener) models.Datastore {
return &extds{
Datastore: ds,
al: al,
fl: fl,
tl: tl,
}
}
type extds struct {
models.Datastore
al AppListener
fl FnListener
tl TriggerListener
}
func (e *extds) InsertTrigger(ctx context.Context, trigger *models.Trigger) (*models.Trigger, error) {
err := e.tl.BeforeTriggerCreate(ctx, trigger)
if err != nil {
return nil, err
}
t, err := e.Datastore.InsertTrigger(ctx, trigger)
if err != nil {
return nil, err
}
err = e.tl.AfterTriggerCreate(ctx, t)
return t, err
}
func (e *extds) UpdateTrigger(ctx context.Context, trigger *models.Trigger) (*models.Trigger, error) {
err := e.tl.BeforeTriggerUpdate(ctx, trigger)
if err != nil {
return nil, err
}
t, err := e.Datastore.UpdateTrigger(ctx, trigger)
if err != nil {
return nil, err
}
err = e.tl.AfterTriggerUpdate(ctx, t)
return t, err
}
func (e *extds) RemoveTrigger(ctx context.Context, triggerID string) error {
err := e.tl.BeforeTriggerDelete(ctx, triggerID)
if err != nil {
return err
}
err = e.Datastore.RemoveTrigger(ctx, triggerID)
if err != nil {
return err
}
err = e.tl.AfterTriggerDelete(ctx, triggerID)
return err
}
func (e *extds) GetAppByID(ctx context.Context, appID string) (*models.App, error) {
err := e.al.BeforeAppGet(ctx, appID)
if err != nil {
return nil, err
}
app, err := e.Datastore.GetAppByID(ctx, appID)
if err != nil {
return nil, err
}
err = e.al.AfterAppGet(ctx, app)
return app, err
}
func (e *extds) InsertApp(ctx context.Context, app *models.App) (*models.App, error) {
err := e.al.BeforeAppCreate(ctx, app)
if err != nil {
return nil, err
}
app, err = e.Datastore.InsertApp(ctx, app)
if err != nil {
return nil, err
}
err = e.al.AfterAppCreate(ctx, app)
return app, err
}
func (e *extds) UpdateApp(ctx context.Context, app *models.App) (*models.App, error) {
err := e.al.BeforeAppUpdate(ctx, app)
if err != nil {
return nil, err
}
app, err = e.Datastore.UpdateApp(ctx, app)
if err != nil {
return nil, err
}
err = e.al.AfterAppUpdate(ctx, app)
return app, err
}
func (e *extds) RemoveApp(ctx context.Context, appName string) error {
var app models.App
app.Name = appName
err := e.al.BeforeAppDelete(ctx, &app)
if err != nil {
return err
}
err = e.Datastore.RemoveApp(ctx, appName)
if err != nil {
return err
}
return e.al.AfterAppDelete(ctx, &app)
}
func (e *extds) GetApps(ctx context.Context, filter *models.AppFilter) (*models.AppList, error) {
err := e.al.BeforeAppsList(ctx, filter)
if err != nil {
return nil, err
}
apps, err := e.Datastore.GetApps(ctx, filter)
if err != nil {
return nil, err
}
err = e.al.AfterAppsList(ctx, apps.Items)
return apps, err
}
func (e *extds) InsertFn(ctx context.Context, fn *models.Fn) (*models.Fn, error) {
err := e.fl.BeforeFnCreate(ctx, fn)
if err != nil {
return nil, err
}
f, err := e.Datastore.InsertFn(ctx, fn)
if err != nil {
return nil, err
}
err = e.fl.AfterFnCreate(ctx, f)
if err != nil {
return nil, err
}
return f, nil
}
func (e *extds) UpdateFn(ctx context.Context, fn *models.Fn) (*models.Fn, error) {
err := e.fl.BeforeFnUpdate(ctx, fn)
if err != nil {
return nil, err
}
f, err := e.Datastore.UpdateFn(ctx, fn)
if err != nil {
return nil, err
}
err = e.fl.AfterFnUpdate(ctx, f)
if err != nil {
return nil, err
}
return f, nil
}
func (e *extds) RemoveFn(ctx context.Context, fnID string) error {
err := e.fl.BeforeFnDelete(ctx, fnID)
if err != nil {
return err
}
err = e.Datastore.RemoveFn(ctx, fnID)
if err != nil {
return err
}
err = e.fl.AfterFnDelete(ctx, fnID)
if err != nil {
return err
}
return nil
}