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stack.go
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stack.go
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package v1alpha3
import (
"github.com/docker/compose-on-kubernetes/api/compose/v1alpha3"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/client-go/tools/cache"
)
// StackLister helps list Stacks.
type StackLister interface {
// List lists all Stacks in the indexer.
List(selector labels.Selector) ([]*v1alpha3.Stack, error)
// Stacks returns an object that can list and get Stacks.
Stacks(namespace string) StackNamespaceLister
StackListerExpansion
}
// stackLister implements the StackLister interface.
type stackLister struct {
indexer cache.Indexer
}
// NewStackLister returns a new StackLister.
func NewStackLister(indexer cache.Indexer) StackLister {
return &stackLister{indexer: indexer}
}
// List lists all Stacks in the indexer.
func (s *stackLister) List(selector labels.Selector) ([]*v1alpha3.Stack, error) {
stacks := []*v1alpha3.Stack{}
err := cache.ListAll(s.indexer, selector, func(m interface{}) {
stacks = append(stacks, m.(*v1alpha3.Stack))
})
return stacks, err
}
// Stacks returns an object that can list and get Stacks.
func (s *stackLister) Stacks(namespace string) StackNamespaceLister {
return stackNamespaceLister{indexer: s.indexer, namespace: namespace}
}
// StackNamespaceLister helps list and get Stacks.
type StackNamespaceLister interface {
// List lists all Stacks in the indexer for a given namespace.
List(selector labels.Selector) ([]*v1alpha3.Stack, error)
// Get retrieves the Stack from the indexer for a given namespace and name.
Get(name string) (*v1alpha3.Stack, error)
StackNamespaceListerExpansion
}
// stackNamespaceLister implements the StackNamespaceLister
// interface.
type stackNamespaceLister struct {
indexer cache.Indexer
namespace string
}
// List lists all Stacks in the indexer for a given namespace.
func (s stackNamespaceLister) List(selector labels.Selector) ([]*v1alpha3.Stack, error) {
stacks := []*v1alpha3.Stack{}
err := cache.ListAllByNamespace(s.indexer, s.namespace, selector, func(m interface{}) {
stacks = append(stacks, m.(*v1alpha3.Stack))
})
return stacks, err
}
// Get retrieves the Stack from the indexer for a given namespace and name.
func (s stackNamespaceLister) Get(name string) (*v1alpha3.Stack, error) {
obj, exists, err := s.indexer.GetByKey(s.namespace + "/" + name)
if err != nil {
return nil, err
}
if !exists {
return nil, errors.NewNotFound(v1alpha3.GroupResource("stack"), name)
}
return obj.(*v1alpha3.Stack), nil
}