github.com/galamsiva2020/kubernetes-heapster-monitoring@v0.0.0-20210823134957-3c1baa7c1e70/events/sources/factory.go (about) 1 // Copyright 2015 Google Inc. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package sources 16 17 import ( 18 "fmt" 19 20 "github.com/golang/glog" 21 22 "k8s.io/heapster/common/flags" 23 "k8s.io/heapster/events/core" 24 kube "k8s.io/heapster/events/sources/kubernetes" 25 ) 26 27 type SourceFactory struct { 28 } 29 30 func (this *SourceFactory) Build(uri flags.Uri) (core.EventSource, error) { 31 switch uri.Key { 32 case "kubernetes": 33 src, err := kube.NewKubernetesSource(&uri.Val) 34 return src, err 35 default: 36 return nil, fmt.Errorf("Source not recognized: %s", uri.Key) 37 } 38 } 39 40 func (this *SourceFactory) BuildAll(uris flags.Uris) ([]core.EventSource, error) { 41 if len(uris) != 1 { 42 return nil, fmt.Errorf("Only one source is supported") 43 } 44 result := []core.EventSource{} 45 for _, uri := range uris { 46 source, err := this.Build(uri) 47 if err != nil { 48 glog.Errorf("Failed to create %s: %v", uri.Key, err) 49 } else { 50 result = append(result, source) 51 } 52 } 53 return result, nil 54 } 55 56 func NewSourceFactory() *SourceFactory { 57 return &SourceFactory{} 58 }