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FederatedInformer returns clusterName + obj pair when needed

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This commit is contained in:
Marcin Wielgus 2016-08-16 20:42:46 +02:00
parent ec4d645da4
commit c75cefa296
2 changed files with 20 additions and 12 deletions
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29
federation/pkg/federation-controller/util/federated_informer.go
View File

@ -40,10 +40,16 @@ const (
userAgentName = "federation-service-controller"
)
// An object with an origin information.
type FederatedObject struct {
Object interface{}
ClusterName string
}
// FederatedReadOnlyStore is an overlay over multiple stores created in federated clusters.
type FederatedReadOnlyStore interface {
// Returns all items in the store.
List() ([]interface{}, error)
List() ([]FederatedObject, error)
// Returns all items from a cluster.
ListFromCluster(clusterName string) ([]interface{}, error)
@ -52,7 +58,7 @@ type FederatedReadOnlyStore interface {
GetByKey(clusterName string, key string) (interface{}, bool, error)
// Returns the items stored under the given key in all clusters.
GetFromAllClusters(key string) ([]interface{}, error)
GetFromAllClusters(key string) ([]FederatedObject, error)
// Checks whether stores for all clusters form the lists (and only these) are there and
// are synced. This is only a basic check whether the data inside of the store is usable.
@ -382,14 +388,15 @@ func (f *federatedInformerImpl) GetTargetStore() FederatedReadOnlyStore {
}
// Returns all items in the store.
func (fs *federatedStoreImpl) List() ([]interface{}, error) {
func (fs *federatedStoreImpl) List() ([]FederatedObject, error) {
fs.federatedInformer.Lock()
defer fs.federatedInformer.Unlock()
result := make([]interface{}, 0)
for _, targetInformer := range fs.federatedInformer.targetInformers {
values := targetInformer.store.List()
result = append(result, values...)
result := make([]FederatedObject, 0)
for clusterName, targetInformer := range fs.federatedInformer.targetInformers {
for _, value := range targetInformer.store.List() {
result = append(result, FederatedObject{ClusterName: clusterName, Object: value})
}
}
return result, nil
}
@ -418,18 +425,18 @@ func (fs *federatedStoreImpl) GetByKey(clusterName string, key string) (interfac
}
// Returns the items stored under the given key in all clusters.
func (fs *federatedStoreImpl) GetFromAllClusters(key string) ([]interface{}, error) {
func (fs *federatedStoreImpl) GetFromAllClusters(key string) ([]FederatedObject, error) {
fs.federatedInformer.Lock()
defer fs.federatedInformer.Unlock()
result := make([]interface{}, 0)
for _, targetInformer := range fs.federatedInformer.targetInformers {
result := make([]FederatedObject, 0)
for clusterName, targetInformer := range fs.federatedInformer.targetInformers {
value, exist, err := targetInformer.store.GetByKey(key)
if err != nil {
return nil, err
}
if exist {
result = append(result, value)
result = append(result, FederatedObject{ClusterName: clusterName, Object: value})
}
}
return result, nil

3
federation/pkg/federation-controller/util/federated_informer_test.go
View File

@ -121,7 +121,8 @@ func TestFederatedInformer(t *testing.T) {
assert.Contains(t, readyClusters, &cluster)
serviceList, err := informer.GetTargetStore().List()
assert.NoError(t, err)
assert.Contains(t, serviceList, &service)
federatedService := FederatedObject{ClusterName: "mycluster", Object: &service}
assert.Contains(t, serviceList, federatedService)
service1, found, err := informer.GetTargetStore().GetByKey("mycluster", "ns1/s1")
assert.NoError(t, err)
assert.True(t, found)