cubefs

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// Copyright 2015 The Prometheus 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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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// Package expfmt contains tools for reading and writing Prometheus metrics.
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package expfmt
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// Format specifies the HTTP content type of the different wire protocols.
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type Format string
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// Constants to assemble the Content-Type values for the different wire protocols.
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const (
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	TextVersion        = "0.0.4"
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	ProtoType          = `application/vnd.google.protobuf`
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	ProtoProtocol      = `io.prometheus.client.MetricFamily`
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	ProtoFmt           = ProtoType + "; proto=" + ProtoProtocol + ";"
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	OpenMetricsType    = `application/openmetrics-text`
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	OpenMetricsVersion = "0.0.1"
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	// The Content-Type values for the different wire protocols.
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	FmtUnknown      Format = `<unknown>`
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	FmtText         Format = `text/plain; version=` + TextVersion + `; charset=utf-8`
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	FmtProtoDelim   Format = ProtoFmt + ` encoding=delimited`
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	FmtProtoText    Format = ProtoFmt + ` encoding=text`
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	FmtProtoCompact Format = ProtoFmt + ` encoding=compact-text`
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	FmtOpenMetrics  Format = OpenMetricsType + `; version=` + OpenMetricsVersion + `; charset=utf-8`
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)
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const (
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	hdrContentType = "Content-Type"
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	hdrAccept      = "Accept"
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)
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