mirror of https://github.com/knative/pkg.git
55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
/*
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Copyright 2019 The Knative Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"strconv"
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"go.opencensus.io/tag"
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)
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// ResponseCodeClass converts an HTTP response code to a string representing its response code class.
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// E.g., The response code class is "5xx" for response code 503.
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func ResponseCodeClass(responseCode int) string {
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// Get the hundred digit of the response code and concatenate "xx".
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return strconv.Itoa(responseCode/100) + "xx"
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}
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// MaybeInsertIntTag conditionally insert the tag when cond is true.
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func MaybeInsertIntTag(key tag.Key, value int, cond bool) tag.Mutator {
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if cond {
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return tag.Insert(key, strconv.Itoa(value))
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}
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return tag.Insert(key, "")
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}
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// MaybeInsertBoolTag conditionally insert the tag when cond is true.
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func MaybeInsertBoolTag(key tag.Key, value, cond bool) tag.Mutator {
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if cond {
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return tag.Insert(key, strconv.FormatBool(value))
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}
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return tag.Insert(key, "")
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}
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// MaybeInsertStringTag conditionally insert the tag when cond is true.
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func MaybeInsertStringTag(key tag.Key, value string, cond bool) tag.Mutator {
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if cond {
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return tag.Insert(key, value)
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}
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return tag.Insert(key, "")
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}
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