mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-14 19:45:11 +00:00
76 lines
2.3 KiB
Go
76 lines
2.3 KiB
Go
package collectors
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/ClickHouse/ClickHouse/programs/diagnostics/internal/platform/config"
|
|
"github.com/ClickHouse/ClickHouse/programs/diagnostics/internal/platform/data"
|
|
"github.com/pkg/errors"
|
|
"github.com/rs/zerolog/log"
|
|
)
|
|
|
|
type Collector interface {
|
|
Collect(config config.Configuration) (*data.DiagnosticBundle, error)
|
|
Configuration() config.Configuration
|
|
IsDefault() bool
|
|
Description() string
|
|
}
|
|
|
|
// Register can be called from init() on a collector in this package
|
|
// It will automatically be added to the Collectors map to be called externally
|
|
func Register(name string, collector CollectorFactory) {
|
|
if name == "diag_trace" {
|
|
// we use this to record errors and warnings
|
|
log.Fatal().Msgf("diag_trace is a reserved collector name")
|
|
}
|
|
// names must be unique
|
|
if _, ok := Collectors[name]; ok {
|
|
log.Fatal().Msgf("More than 1 collector is trying to register under the name %s. Names must be unique.", name)
|
|
}
|
|
Collectors[name] = collector
|
|
}
|
|
|
|
// CollectorFactory lets us use a closure to get instances of the collector struct
|
|
type CollectorFactory func() (Collector, error)
|
|
|
|
var Collectors = map[string]CollectorFactory{}
|
|
|
|
func GetCollectorNames(defaultOnly bool) []string {
|
|
// can't pre-allocate as not all maybe default
|
|
var collectors []string
|
|
for collectorName := range Collectors {
|
|
collector, err := GetCollectorByName(collectorName)
|
|
if err != nil {
|
|
log.Fatal().Err(err)
|
|
}
|
|
if !defaultOnly || (defaultOnly && collector.IsDefault()) {
|
|
collectors = append(collectors, collectorName)
|
|
}
|
|
}
|
|
return collectors
|
|
}
|
|
|
|
func GetCollectorByName(name string) (Collector, error) {
|
|
if collectorFactory, ok := Collectors[name]; ok {
|
|
//do something here
|
|
collector, err := collectorFactory()
|
|
if err != nil {
|
|
return nil, errors.Wrapf(err, "collector %s could not be initialized", name)
|
|
}
|
|
return collector, nil
|
|
}
|
|
return nil, fmt.Errorf("%s is not a valid collector name", name)
|
|
}
|
|
|
|
func BuildConfigurationOptions() (map[string]config.Configuration, error) {
|
|
configurations := make(map[string]config.Configuration)
|
|
for name, collectorFactory := range Collectors {
|
|
collector, err := collectorFactory()
|
|
if err != nil {
|
|
return nil, errors.Wrapf(err, "collector %s could not be initialized", name)
|
|
}
|
|
configurations[name] = collector.Configuration()
|
|
}
|
|
return configurations, nil
|
|
}
|