github.com/timstclair/heapster@v0.20.0-alpha1/metrics/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 "k8s.io/heapster/common/flags" 21 "k8s.io/heapster/metrics/core" 22 "k8s.io/heapster/metrics/sources/kubelet" 23 ) 24 25 type SourceFactory struct { 26 } 27 28 func (this *SourceFactory) Build(uri flags.Uri) (core.MetricsSourceProvider, error) { 29 switch uri.Key { 30 case "kubernetes": 31 provider, err := kubelet.NewKubeletProvider(&uri.Val) 32 return provider, err 33 default: 34 return nil, fmt.Errorf("Source not recognized: %s", uri.Key) 35 } 36 } 37 38 func (this *SourceFactory) BuildAll(uris flags.Uris) (core.MetricsSourceProvider, error) { 39 if len(uris) != 1 { 40 return nil, fmt.Errorf("Only one source is supported") 41 } 42 return this.Build(uris[0]) 43 } 44 45 func NewSourceFactory() *SourceFactory { 46 return &SourceFactory{} 47 }