64 lines
2.2 KiB
Go
64 lines
2.2 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cache
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import (
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"github.com/golang/glog"
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"k8s.io/kubernetes/federation/apis/federation/v1beta1"
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kubecache "k8s.io/kubernetes/pkg/client/cache"
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)
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// StoreToClusterLister makes a Store have the List method of the metav1.ClusterInterface
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// The Store must contain (only) clusters.
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type StoreToClusterLister struct {
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kubecache.Store
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}
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func (s *StoreToClusterLister) List() (clusters v1beta1.ClusterList, err error) {
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for _, m := range s.Store.List() {
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clusters.Items = append(clusters.Items, *(m.(*v1beta1.Cluster)))
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}
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return clusters, nil
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}
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// ClusterConditionPredicate is a function that indicates whether the given cluster's conditions meet
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// some set of criteria defined by the function.
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type ClusterConditionPredicate func(cluster v1beta1.Cluster) bool
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// storeToClusterConditionLister filters and returns nodes matching the given type and status from the store.
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type storeToClusterConditionLister struct {
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store kubecache.Store
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predicate ClusterConditionPredicate
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}
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// ClusterCondition returns a storeToClusterConditionLister
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func (s *StoreToClusterLister) ClusterCondition(predicate ClusterConditionPredicate) storeToClusterConditionLister {
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return storeToClusterConditionLister{s.Store, predicate}
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}
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// List returns a list of clusters that match the conditions defined by the predicate functions in the storeToClusterConditionLister.
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func (s storeToClusterConditionLister) List() (clusters v1beta1.ClusterList, err error) {
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for _, m := range s.store.List() {
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cluster := *m.(*v1beta1.Cluster)
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if s.predicate(cluster) {
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clusters.Items = append(clusters.Items, cluster)
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} else {
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glog.V(5).Infof("Cluster %s matches none of the conditions", cluster.Name)
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}
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}
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return
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}
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