forked from mirror/client_golang
54 lines
1.5 KiB
Go
54 lines
1.5 KiB
Go
![]() |
// Copyright 2013 Prometheus Team
|
||
|
// 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 model
|
||
|
|
||
|
import (
|
||
|
"fmt"
|
||
|
"sort"
|
||
|
"strings"
|
||
|
)
|
||
|
|
||
|
// A LabelSet is a collection of LabelName and LabelValue pairs. The LabelSet
|
||
|
// may be fully-qualified down to the point where it may resolve to a single
|
||
|
// Metric in the data store or not. All operations that occur within the realm
|
||
|
// of a LabelSet can emit a vector of Metric entities to which the LabelSet may
|
||
|
// match.
|
||
|
type LabelSet map[LabelName]LabelValue
|
||
|
|
||
|
// Helper function to non-destructively merge two label sets.
|
||
|
func (l LabelSet) Merge(other LabelSet) LabelSet {
|
||
|
result := make(LabelSet, len(l))
|
||
|
|
||
|
for k, v := range l {
|
||
|
result[k] = v
|
||
|
}
|
||
|
|
||
|
for k, v := range other {
|
||
|
result[k] = v
|
||
|
}
|
||
|
|
||
|
return result
|
||
|
}
|
||
|
|
||
|
func (l LabelSet) String() string {
|
||
|
labelStrings := make([]string, 0, len(l))
|
||
|
for label, value := range l {
|
||
|
labelStrings = append(labelStrings, fmt.Sprintf("%s='%s'", label, value))
|
||
|
}
|
||
|
|
||
|
sort.Strings(labelStrings)
|
||
|
|
||
|
return fmt.Sprintf("{%s}", strings.Join(labelStrings, ", "))
|
||
|
}
|