mirror of https://github.com/knative/caching.git
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
/*
|
|
Copyright 2019 The Knative 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 metrics
|
|
|
|
import (
|
|
"strconv"
|
|
|
|
"go.opencensus.io/tag"
|
|
)
|
|
|
|
// ResponseCodeClass converts an HTTP response code to a string representing its response code class.
|
|
// E.g., The response code class is "5xx" for response code 503.
|
|
func ResponseCodeClass(responseCode int) string {
|
|
// Get the hundred digit of the response code and concatenate "xx".
|
|
return strconv.Itoa(responseCode/100) + "xx"
|
|
}
|
|
|
|
// MaybeInsertIntTag conditionally insert the tag when cond is true.
|
|
func MaybeInsertIntTag(key tag.Key, value int, cond bool) tag.Mutator {
|
|
if cond {
|
|
return tag.Insert(key, strconv.Itoa(value))
|
|
}
|
|
return tag.Insert(key, "")
|
|
}
|
|
|
|
// MaybeInsertBoolTag conditionally insert the tag when cond is true.
|
|
func MaybeInsertBoolTag(key tag.Key, value bool, cond bool) tag.Mutator {
|
|
if cond {
|
|
return tag.Insert(key, strconv.FormatBool(value))
|
|
}
|
|
return tag.Insert(key, "")
|
|
}
|
|
|
|
// MaybeInsertStringTag conditionally insert the tag when cond is true.
|
|
func MaybeInsertStringTag(key tag.Key, value string, cond bool) tag.Mutator {
|
|
if cond {
|
|
return tag.Insert(key, value)
|
|
}
|
|
return tag.Insert(key, "")
|
|
}
|