mirror of
https://github.com/prometheus-community/postgres_exporter.git
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8d5ec4b3ea
* Update Go to 1.24. * Update golangci-lint to v2. * Fixup linting issues. Signed-off-by: SuperQ <superq@gmail.com>
63 lines
1.9 KiB
Go
63 lines
1.9 KiB
Go
// Copyright 2023 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 collector
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import (
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"strings"
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"github.com/prometheus/client_golang/prometheus"
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dto "github.com/prometheus/client_model/go"
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)
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type labelMap map[string]string
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type MetricResult struct {
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labels labelMap
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value float64
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metricType dto.MetricType
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}
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func readMetric(m prometheus.Metric) MetricResult {
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pb := &dto.Metric{}
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m.Write(pb)
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labels := make(labelMap, len(pb.Label))
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for _, v := range pb.Label {
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labels[v.GetName()] = v.GetValue()
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}
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if pb.Gauge != nil {
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return MetricResult{labels: labels, value: pb.GetGauge().GetValue(), metricType: dto.MetricType_GAUGE}
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}
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if pb.Counter != nil {
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return MetricResult{labels: labels, value: pb.GetCounter().GetValue(), metricType: dto.MetricType_COUNTER}
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}
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if pb.Untyped != nil {
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return MetricResult{labels: labels, value: pb.GetUntyped().GetValue(), metricType: dto.MetricType_UNTYPED}
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}
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panic("Unsupported metric type")
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}
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func sanitizeQuery(q string) string {
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q = strings.Join(strings.Fields(q), " ")
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q = strings.ReplaceAll(q, "(", "\\(")
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q = strings.ReplaceAll(q, "?", "\\?")
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q = strings.ReplaceAll(q, ")", "\\)")
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q = strings.ReplaceAll(q, "[", "\\[")
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q = strings.ReplaceAll(q, "]", "\\]")
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q = strings.ReplaceAll(q, "{", "\\{")
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q = strings.ReplaceAll(q, "}", "\\}")
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q = strings.ReplaceAll(q, "*", "\\*")
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q = strings.ReplaceAll(q, "^", "\\^")
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q = strings.ReplaceAll(q, "$", "\\$")
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return q
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}
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