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// SPDX-License-Identifier: GPL-3.0-or-later
package cassandra
import (
_ "embed"
"errors"
"time"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus"
"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("cassandra", module.Creator{
JobConfigSchema: configSchema,
Defaults: module.Defaults{
UpdateEvery: 5,
},
Create: func() module.Module { return New() },
})
}
func New() *Cassandra {
return &Cassandra{
Config: Config{
HTTP: web.HTTP{
Request: web.Request{
URL: "http://127.0.0.1:7072/metrics",
},
Client: web.Client{
Timeout: web.Duration(time.Second * 5),
},
},
},
charts: baseCharts.Copy(),
validateMetrics: true,
mx: newCassandraMetrics(),
}
}
type Config struct {
web.HTTP `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
}
type Cassandra struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
prom prometheus.Prometheus
validateMetrics bool
mx *cassandraMetrics
}
func (c *Cassandra) Configuration() any {
return c.Config
}
func (c *Cassandra) Init() error {
if err := c.validateConfig(); err != nil {
c.Errorf("error on validating config: %v", err)
return err
}
prom, err := c.initPrometheusClient()
if err != nil {
c.Errorf("error on init prometheus client: %v", err)
return err
}
c.prom = prom
return nil
}
func (c *Cassandra) Check() error {
mx, err := c.collect()
if err != nil {
c.Error(err)
return err
}
if len(mx) == 0 {
return errors.New("no metrics collected")
}
return nil
}
func (c *Cassandra) Charts() *module.Charts {
return c.charts
}
func (c *Cassandra) Collect() map[string]int64 {
mx, err := c.collect()
if err != nil {
c.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (c *Cassandra) Cleanup() {
if c.prom != nil && c.prom.HTTPClient() != nil {
c.prom.HTTPClient().CloseIdleConnections()
}
}
|
