forked from mirror/client_golang
72 lines
2.7 KiB
Go
72 lines
2.7 KiB
Go
// Copyright (c) 2013, Prometheus Team
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// All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found
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// in the LICENSE file.
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package prometheus
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var (
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// NilLabels is a nil set of labels merely for end-user convenience.
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NilLabels map[string]string
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// DefaultHandler is the default http.Handler for exposing telemetric
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// data over a web services interface.
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DefaultHandler = DefaultRegistry.Handler()
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// DefaultRegistry with which Metric objects are associated.
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DefaultRegistry = NewRegistry()
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)
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const (
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// FlagNamespace is a prefix to be used to namespace instrumentation
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// flags from others.
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FlagNamespace = "telemetry."
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// APIVersion is the version of the format of the exported data. This
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// will match this library's version, which subscribes to the Semantic
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// Versioning scheme.
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APIVersion = "0.0.4"
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// JSONAPIVersion is the version of the JSON export format.
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JSONAPIVersion = "0.0.2"
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// DelimitedTelemetryContentType is the content type set on telemetry
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// data responses in delimited protobuf format.
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DelimitedTelemetryContentType = `application/vnd.google.protobuf; proto="io.prometheus.client.MetricFamily"; encoding="delimited"`
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// TextTelemetryContentType is the content type set on telemetry data
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// responses in text format.
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TextTelemetryContentType = `text/plain; version=` + APIVersion
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// ProtoTextTelemetryContentType is the content type set on telemetry
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// data responses in protobuf text format. (Only used for debugging.)
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ProtoTextTelemetryContentType = `application/vnd.google.protobuf; proto="io.prometheus.client.MetricFamily"; encoding="text"`
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// ProtoCompactTextTelemetryContentType is the content type set on
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// telemetry data responses in protobuf compact text format. (Only used
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// for debugging.)
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ProtoCompactTextTelemetryContentType = `application/vnd.google.protobuf; proto="io.prometheus.client.MetricFamily"; encoding="compact-text"`
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// JSONTelemetryContentType is the content type set on telemetry data
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// responses formatted as JSON.
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JSONTelemetryContentType = `application/json; schema="prometheus/telemetry"; version=` + JSONAPIVersion
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// ExpositionResource is the customary web services endpoint on which
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// telemetric data is exposed.
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ExpositionResource = "/metrics"
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baseLabelsKey = "baseLabels"
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docstringKey = "docstring"
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metricKey = "metric"
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counterTypeValue = "counter"
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floatBitCount = 64
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floatFormat = 'f'
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floatPrecision = 6
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gaugeTypeValue = "gauge"
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untypedTypeValue = "untyped"
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histogramTypeValue = "histogram"
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typeKey = "type"
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valueKey = "value"
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labelsKey = "labels"
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)
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var blankLabelsSingleton = map[string]string{}
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