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servicebinding_service.go
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servicebinding_service.go
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package servicecatalog
import (
"fmt"
api "github.com/kubernetes-incubator/service-catalog/pkg/apis/servicecatalog/v1beta1"
"github.com/kubernetes-incubator/service-catalog/pkg/client/clientset_generated/clientset/typed/servicecatalog/v1beta1"
"github.com/kyma-project/kyma/components/ui-api-layer/pkg/resource"
"github.com/pkg/errors"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/tools/cache"
)
type serviceBindingService struct {
client v1beta1.ServicecatalogV1beta1Interface
informer cache.SharedIndexInformer
notifier notifier
nameFunc func() string
}
func newServiceBindingService(client v1beta1.ServicecatalogV1beta1Interface, informer cache.SharedIndexInformer, nameFunc func() string) (*serviceBindingService, error) {
svc := &serviceBindingService{
client: client,
informer: informer,
nameFunc: nameFunc,
}
err := informer.AddIndexers(cache.Indexers{
"relatedServiceInstanceName": func(obj interface{}) ([]string, error) {
serviceBinding, err := svc.toServiceBinding(obj)
if err != nil {
return nil, errors.Wrapf(err, "while indexing by `relatedServiceInstanceName`")
}
key := fmt.Sprintf("%s/%s", serviceBinding.Namespace, serviceBinding.Spec.ServiceInstanceRef.Name)
return []string{key}, nil
},
})
if err != nil {
return nil, errors.Wrap(err, "while adding indexers")
}
notifier := resource.NewNotifier()
informer.AddEventHandler(notifier)
svc.notifier = notifier
return svc, nil
}
func (f *serviceBindingService) Create(ns string, sb *api.ServiceBinding) (*api.ServiceBinding, error) {
if sb.Name == "" {
sb.Name = f.nameFunc()
}
return f.client.ServiceBindings(ns).Create(sb)
}
func (f *serviceBindingService) Delete(ns string, name string) error {
return f.client.ServiceBindings(ns).Delete(name, &v1.DeleteOptions{})
}
func (f *serviceBindingService) Find(ns string, name string) (*api.ServiceBinding, error) {
key := fmt.Sprintf("%s/%s", ns, name)
item, exists, err := f.informer.GetStore().GetByKey(key)
if err != nil || !exists {
return nil, err
}
return f.toServiceBinding(item)
}
func (f *serviceBindingService) ListForServiceInstance(ns string, instanceName string) ([]*api.ServiceBinding, error) {
key := fmt.Sprintf("%s/%s", ns, instanceName)
items, err := f.informer.GetIndexer().ByIndex("relatedServiceInstanceName", key)
if err != nil {
return nil, err
}
return f.toServiceBindings(items)
}
func (f *serviceBindingService) Subscribe(listener resource.Listener) {
f.notifier.AddListener(listener)
}
func (f *serviceBindingService) Unsubscribe(listener resource.Listener) {
f.notifier.DeleteListener(listener)
}
func (f *serviceBindingService) toServiceBinding(item interface{}) (*api.ServiceBinding, error) {
serviceBinding, ok := item.(*api.ServiceBinding)
if !ok {
return nil, fmt.Errorf("incorrect item type: %T, should be: *ServiceBinding", item)
}
return serviceBinding, nil
}
func (f *serviceBindingService) toServiceBindings(items []interface{}) ([]*api.ServiceBinding, error) {
var serviceBindings []*api.ServiceBinding
for _, item := range items {
serviceBinding, err := f.toServiceBinding(item)
if err != nil {
return nil, err
}
serviceBindings = append(serviceBindings, serviceBinding)
}
return serviceBindings, nil
}