82 lines
1.6 KiB
Go
82 lines
1.6 KiB
Go
package collector
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import (
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"bytes"
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"reflect"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/common/log"
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)
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// ...
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const (
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Namespace = "wmi"
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// Conversion factors
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ticksToSecondsScaleFactor = 1 / 1e7
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)
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// Factories ...
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var Factories = make(map[string]func() (Collector, error))
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// Collector is the interface a collector has to implement.
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type Collector interface {
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// Get new metrics and expose them via prometheus registry.
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Collect(ch chan<- prometheus.Metric) (err error)
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}
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func className(src interface{}) string {
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s := reflect.Indirect(reflect.ValueOf(src))
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t := s.Type()
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if s.Kind() == reflect.Slice {
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t = t.Elem()
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}
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return t.Name()
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}
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func queryAll(src interface{}) string {
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var b bytes.Buffer
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b.WriteString("SELECT * FROM ")
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b.WriteString(className(src))
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log.Debugf("Generated WMI query %s", b.String())
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return b.String()
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}
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func queryAllForClass(src interface{}, class string) string {
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var b bytes.Buffer
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b.WriteString("SELECT * FROM ")
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b.WriteString(class)
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log.Debugf("Generated WMI query %s", b.String())
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return b.String()
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}
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func queryAllWhere(src interface{}, where string) string {
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var b bytes.Buffer
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b.WriteString("SELECT * FROM ")
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b.WriteString(className(src))
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if where != "" {
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b.WriteString(" WHERE ")
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b.WriteString(where)
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}
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log.Debugf("Generated WMI query %s", b.String())
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return b.String()
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}
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func queryAllForClassWhere(src interface{}, class string, where string) string {
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var b bytes.Buffer
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b.WriteString("SELECT * FROM ")
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b.WriteString(class)
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if where != "" {
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b.WriteString(" WHERE ")
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b.WriteString(where)
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}
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log.Debugf("Generated WMI query %s", b.String())
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return b.String()
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}
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