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Code Issues Releases Wiki Activity

Add name to handlers

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This commit is contained in:
Darren Shepherd 2018-01-15 22:08:36 -07:00
parent 9ce12b1644
commit af105c2bc7
2 changed files with 47 additions and 17 deletions
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50
controller/generic_controller.go
View File

@ -23,17 +23,22 @@ type HandlerFunc func(key string) error
type GenericController interface {
Informer() cache.SharedIndexInformer
AddHandler(handler HandlerFunc)
AddHandler(name string, handler HandlerFunc)
HandlerCount() int
Enqueue(namespace, name string)
Sync(ctx context.Context) error
Start(ctx context.Context, threadiness int) error
}
type handlerDef struct {
name string
handler HandlerFunc
}
type genericController struct {
sync.Mutex
informer cache.SharedIndexInformer
handlers []HandlerFunc
handlers []handlerDef
queue workqueue.RateLimitingInterface
name string
running bool
@ -72,8 +77,11 @@ func (g *genericController) Enqueue(namespace, name string) {
}
}
func (g *genericController) AddHandler(handler HandlerFunc) {
g.handlers = append(g.handlers, handler)
func (g *genericController) AddHandler(name string, handler HandlerFunc) {
g.handlers = append(g.handlers, handlerDef{
name: name,
handler: handler,
})
}
func (g *genericController) Sync(ctx context.Context) error {
@ -162,23 +170,45 @@ func (g *genericController) processNextWorkItem() bool {
// do your work on the key. This method will contains your "do stuff" logic
err := g.syncHandler(key.(string))
if _, ok := err.(*ForgetError); err == nil || ok {
checkErr := err
if handlerErr, ok := checkErr.(*handlerError); ok {
checkErr = handlerErr.err
}
if _, ok := checkErr.(*ForgetError); err == nil || ok {
if ok {
logrus.Infof("%v %v completed with dropped err: %v", g.name, key, err)
}
g.queue.Forget(key)
return true
}
utilruntime.HandleError(fmt.Errorf("%v %v failed with : %v", g.name, key, err))
utilruntime.HandleError(fmt.Errorf("%v %v %v", g.name, key, err))
g.queue.AddRateLimited(key)
return true
}
func (g *genericController) syncHandler(s string) error {
func (g *genericController) syncHandler(s string) (err error) {
defer utilruntime.RecoverFromPanic(&err)
var errs []error
for _, handler := range g.handlers {
if err := handler(s); err != nil {
errs = append(errs, err)
if err := handler.handler(s); err != nil {
errs = append(errs, &handlerError{
name: handler.name,
err: err,
})
}
}
return types.NewErrors(errs)
err = types.NewErrors(errs)
return
}
type handlerError struct {
name string
err error
}
func (h *handlerError) Error() string {
return fmt.Sprintf("[%s] failed with : %v", h.name, h.err)
}

14
generator/controller_template.go
View File

@ -51,7 +51,7 @@ type {{.schema.CodeName}}Lister interface {
type {{.schema.CodeName}}Controller interface {
Informer() cache.SharedIndexInformer
Lister() {{.schema.CodeName}}Lister
AddHandler(handler {{.schema.CodeName}}HandlerFunc)
AddHandler(name string, handler {{.schema.CodeName}}HandlerFunc)
Enqueue(namespace, name string)
Sync(ctx context.Context) error
Start(ctx context.Context, threadiness int) error
@ -69,7 +69,7 @@ type {{.schema.CodeName}}Interface interface {
Watch(opts metav1.ListOptions) (watch.Interface, error)
DeleteCollection(deleteOpts *metav1.DeleteOptions, listOpts metav1.ListOptions) error
Controller() {{.schema.CodeName}}Controller
AddSyncHandler(sync {{.schema.CodeName}}HandlerFunc)
AddHandler(name string, sync {{.schema.CodeName}}HandlerFunc)
AddLifecycle(name string, lifecycle {{.schema.CodeName}}Lifecycle)
}
@ -115,8 +115,8 @@ func (c *{{.schema.ID}}Controller) Lister() {{.schema.CodeName}}Lister {
}
func (c *{{.schema.ID}}Controller) AddHandler(handler {{.schema.CodeName}}HandlerFunc) {
c.GenericController.AddHandler(func(key string) error {
func (c *{{.schema.ID}}Controller) AddHandler(name string, handler {{.schema.CodeName}}HandlerFunc) {
c.GenericController.AddHandler(name, func(key string) error {
obj, exists, err := c.Informer().GetStore().GetByKey(key)
if err != nil {
return err
@ -219,12 +219,12 @@ func (s *{{.schema.ID}}Client) DeleteCollection(deleteOpts *metav1.DeleteOptions
return s.objectClient.DeleteCollection(deleteOpts, listOpts)
}
func (s *{{.schema.ID}}Client) AddSyncHandler(sync {{.schema.CodeName}}HandlerFunc) {
s.Controller().AddHandler(sync)
func (s *{{.schema.ID}}Client) AddHandler(name string, sync {{.schema.CodeName}}HandlerFunc) {
s.Controller().AddHandler(name, sync)
}
func (s *{{.schema.ID}}Client) AddLifecycle(name string, lifecycle {{.schema.CodeName}}Lifecycle) {
sync := New{{.schema.CodeName}}LifecycleAdapter(name, s, lifecycle)
s.AddSyncHandler(sync)
s.AddHandler(name, sync)
}
`