diff options
Diffstat (limited to 'kube2msb/src/vendor/k8s.io/kubernetes/pkg/labels/labels.go')
-rw-r--r-- | kube2msb/src/vendor/k8s.io/kubernetes/pkg/labels/labels.go | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/kube2msb/src/vendor/k8s.io/kubernetes/pkg/labels/labels.go b/kube2msb/src/vendor/k8s.io/kubernetes/pkg/labels/labels.go new file mode 100644 index 0000000..637a45f --- /dev/null +++ b/kube2msb/src/vendor/k8s.io/kubernetes/pkg/labels/labels.go @@ -0,0 +1,71 @@ +/* +Copyright 2014 The Kubernetes Authors. + +Licensed under the Apache License, Version 2.0 (the "License"); +you may not use this file except in compliance with the License. +You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + +Unless required by applicable law or agreed to in writing, software +distributed under the License is distributed on an "AS IS" BASIS, +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +See the License for the specific language governing permissions and +limitations under the License. +*/ + +package labels + +import ( + "sort" + "strings" +) + +// Labels allows you to present labels independently from their storage. +type Labels interface { + // Has returns whether the provided label exists. + Has(label string) (exists bool) + + // Get returns the value for the provided label. + Get(label string) (value string) +} + +// Set is a map of label:value. It implements Labels. +type Set map[string]string + +// String returns all labels listed as a human readable string. +// Conveniently, exactly the format that ParseSelector takes. +func (ls Set) String() string { + selector := make([]string, 0, len(ls)) + for key, value := range ls { + selector = append(selector, key+"="+value) + } + // Sort for determinism. + sort.StringSlice(selector).Sort() + return strings.Join(selector, ",") +} + +// Has returns whether the provided label exists in the map. +func (ls Set) Has(label string) bool { + _, exists := ls[label] + return exists +} + +// Get returns the value in the map for the provided label. +func (ls Set) Get(label string) string { + return ls[label] +} + +// AsSelector converts labels into a selectors. +func (ls Set) AsSelector() Selector { + return SelectorFromSet(ls) +} + +// FormatLables convert label map into plain string +func FormatLabels(labelMap map[string]string) string { + l := Set(labelMap).String() + if l == "" { + l = "<none>" + } + return l +} |