traefik/vendor/github.com/instana/go-sensor/event.go

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2019-02-18 15:52:04 +00:00
package instana
import (
"time"
)
// EventData is the construct serialized for the host agent
type EventData struct {
Title string `json:"title"`
Text string `json:"text"`
// Duration in milliseconds
Duration int `json:"duration"`
// Severity with value of -1, 5, 10 : see type severity
Severity int `json:"severity"`
Plugin string `json:"plugin,omitempty"`
ID string `json:"id,omitempty"`
Host string `json:"host"`
}
type severity int
//Severity values for events sent to the instana agent
const (
SeverityChange severity = -1
SeverityWarning severity = 5
SeverityCritical severity = 10
)
// Defaults for the Event API
const (
ServicePlugin = "com.instana.forge.connection.http.logical.LogicalWebApp"
ServiceHost = ""
)
// SendDefaultServiceEvent sends a default event which already contains the service and host
func SendDefaultServiceEvent(title string, text string, sev severity, duration time.Duration) {
if sensor == nil {
// Since no sensor was initialized, there is no default service (as
// configured on the sensor) so we send blank.
SendServiceEvent("", title, text, sev, duration)
} else {
SendServiceEvent(sensor.serviceName, title, text, sev, duration)
}
}
// SendServiceEvent send an event on a specific service
func SendServiceEvent(service string, title string, text string, sev severity, duration time.Duration) {
sendEvent(&EventData{
Title: title,
Text: text,
Severity: int(sev),
Plugin: ServicePlugin,
ID: service,
Host: ServiceHost,
Duration: int(duration / time.Millisecond),
})
}
// SendHostEvent send an event on the current host
func SendHostEvent(title string, text string, sev severity, duration time.Duration) {
sendEvent(&EventData{
Title: title,
Text: text,
Duration: int(duration / time.Millisecond),
Severity: int(sev),
})
}
func sendEvent(event *EventData) {
if sensor == nil {
// If the sensor hasn't initialized we do so here so that we properly
// discover where the host agent may be as it varies between a
// normal host, docker, kubernetes etc..
InitSensor(&Options{})
}
//we do fire & forget here, because the whole pid dance isn't necessary to send events
go sensor.agent.request(sensor.agent.makeURL(agentEventURL), "POST", event)
}