mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2026-10-17 18:19:04 +02:00
Jan-Otto KröpkeandClaude Opus 5.5
1302cf6899
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
93 lines
3.0 KiB
Go
93 lines
3.0 KiB
Go
// SPDX-License-Identifier: Apache-2.0
|
|
//
|
|
// Copyright The Prometheus 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.
|
|
|
|
//go:build windows
|
|
|
|
package mscluster
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
|
|
"github.com/prometheus-community/windows_exporter/internal/headers/clusapi"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
// beforeMinBuild selects how a field is published on Windows builds older than
|
|
// its objectField.minBuild.
|
|
type beforeMinBuild int
|
|
|
|
const (
|
|
// omitIfMissing publishes a value that exists and omits a missing one
|
|
// without an error. The property did not exist on older builds.
|
|
omitIfMissing beforeMinBuild = iota
|
|
// zeroIfMissing keeps the previous behavior for properties that the WMI
|
|
// query did not select on older builds and therefore published as 0.
|
|
zeroIfMissing
|
|
// neverPublish keeps the previous behavior for properties that were not
|
|
// published at all on older builds.
|
|
neverPublish
|
|
)
|
|
|
|
// objectField maps a ClusAPI value of a cluster, group, node or network to the
|
|
// metric that previously published the WMI property of the same name.
|
|
type objectField struct {
|
|
name string
|
|
desc *prometheus.Desc
|
|
// Signed fields are sint32 in WMI, so 0xFFFFFFFF is published as -1.
|
|
signed bool
|
|
// MinBuild is the first Windows build that has the property.
|
|
minBuild uint16
|
|
older beforeMinBuild
|
|
// Absent, if set, is published when the cluster service does not report
|
|
// the property on any build. It reproduces a value that the WMI provider
|
|
// synthesized; see the cluster field list for each case.
|
|
absent *uint32
|
|
}
|
|
|
|
// publishObjectFields publishes the fields of one object with its name as the
|
|
// only label. Missing values are omitted and reported, never published as 0.
|
|
func publishObjectFields(ch chan<- prometheus.Metric, kind string, object clusapi.Object, fields []objectField, build uint16, resultErr error) error {
|
|
for _, field := range fields {
|
|
raw, exists := object.Values[field.name]
|
|
older := build < field.minBuild
|
|
|
|
switch {
|
|
case older && field.older == neverPublish:
|
|
continue
|
|
case exists:
|
|
case field.absent != nil:
|
|
raw = *field.absent
|
|
case older && field.older == zeroIfMissing:
|
|
raw = 0
|
|
case older:
|
|
continue
|
|
default:
|
|
resultErr = errors.Join(resultErr, fmt.Errorf("%s %q: missing property %s", kind, object.Name, field.name))
|
|
|
|
continue
|
|
}
|
|
|
|
value := float64(raw)
|
|
if field.signed {
|
|
value = float64(int32(raw))
|
|
}
|
|
|
|
ch <- prometheus.MustNewConstMetric(field.desc, prometheus.GaugeValue, value, object.Name)
|
|
}
|
|
|
|
return resultErr
|
|
}
|