cc-metric-collector/collectors/metricCollector.go

81 lines
2.3 KiB
Go

package collectors
import (
"encoding/json"
"fmt"
"time"
lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
)
type MetricCollector interface {
Name() string // Name of the metric collector
Init(config json.RawMessage) error // Initialize metric collector
Initialized() bool // Is metric collector initialized?
Parallel() bool
Read(duration time.Duration, output chan lp.CCMetric) // Read metrics from metric collector
Close() // Close / finish metric collector
}
type metricCollector struct {
name string // name of the metric
init bool // is metric collector initialized?
parallel bool // can the metric collector be executed in parallel with others
meta map[string]string // static meta data tags
}
// Name returns the name of the metric collector
func (c *metricCollector) Name() string {
return c.name
}
// Name returns the name of the metric collector
func (c *metricCollector) Parallel() bool {
return c.parallel
}
// Setup is for future use
func (c *metricCollector) setup() error {
return nil
}
// Initialized indicates whether the metric collector has been initialized
func (c *metricCollector) Initialized() bool {
return c.init
}
// intArrayContains scans an array of ints if the value str is present in the array
// If the specified value is found, the corresponding array index is returned.
// The bool value is used to signal success or failure
func intArrayContains(array []int, str int) (int, bool) {
for i, a := range array {
if a == str {
return i, true
}
}
return -1, false
}
// stringArrayContains scans an array of strings if the value str is present in the array
// If the specified value is found, the corresponding array index is returned.
// The bool value is used to signal success or failure
func stringArrayContains(array []string, str string) (int, bool) {
for i, a := range array {
if a == str {
return i, true
}
}
return -1, false
}
// RemoveFromStringList removes the string r from the array of strings s
// If r is not contained in the array an error is returned
func RemoveFromStringList(s []string, r string) ([]string, error) {
for i := range s {
if r == s[i] {
return append(s[:i], s[i+1:]...), nil
}
}
return s, fmt.Errorf("no such string in list")
}