/
events.go
116 lines (103 loc) · 3 KB
/
events.go
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package gocelery
import (
"os"
"strings"
"time"
"github.com/taoh/gocelery/version"
)
var hostname, _ = os.Hostname()
var pid = os.Getpid()
var ver = version.VERSION
const (
identity = "gocelery"
system = "golang"
)
// EventType is enum of valid event types in celery
type EventType string
// Valid EventTypes
const (
None EventType = "None"
WorkerOffline EventType = "worker-offline"
WorkerHeartbeat EventType = "worker-heartbeat"
WorkerOnline EventType = "worker-online"
TaskRetried EventType = "task-retried"
TaskSucceeded EventType = "task-succeeded"
TaskStarted EventType = "task-started"
TaskReceived EventType = "task-received"
TaskFailed EventType = "task-failed"
TaskRevoked EventType = "task-revoked"
)
// RoutingKey returns celery routing keys for events
func (eventType EventType) RoutingKey() string {
return strings.Replace(string(eventType), "-", ".", -1)
}
// WorkerEvent implements the structure for worker related events
type WorkerEvent struct {
Type EventType `json:"type"`
Ident string `json:"sw_ident"`
Ver string `json:"sw_ver"`
Sys string `json:"sw_sys"`
HostName string `json:"hostname"`
Timestamp int64 `json:"timestamp"`
}
// NewWorkerEvent creates new worker events
func NewWorkerEvent(eventType EventType) *WorkerEvent {
return &WorkerEvent{
Type: eventType,
Ident: identity,
Ver: ver,
Sys: system,
HostName: hostname,
Timestamp: time.Now().Unix(),
}
}
//NewTaskReceivedEvent creates new event for task received
func NewTaskReceivedEvent(task *Task) map[string]interface{} {
taskEvent := map[string]interface{}{
"type": TaskReceived,
"uuid": task.ID,
"name": task.Task,
"args": task.Args,
"kwargs": task.Kwargs,
"retries": task.Retries,
"eta": task.Eta,
"hostname": hostname,
"timestamp": time.Now().Unix(),
}
return taskEvent
}
//NewTaskFailedEvent creates new event for task failed
func NewTaskFailedEvent(task *Task, taskResult *TaskResult, err error) map[string]interface{} {
taskEvent := map[string]interface{}{
"type": TaskReceived,
"uuid": task.ID,
"exception": err.Error(),
"traceback": taskResult.TraceBack,
"hostname": hostname,
"timestamp": time.Now().Unix(),
}
return taskEvent
}
//NewTaskSucceedEvent creates new event for task succeeded
func NewTaskSucceedEvent(task *Task, taskResult *TaskResult, runtime time.Duration) map[string]interface{} {
taskEvent := map[string]interface{}{
"type": TaskReceived,
"uuid": task.ID,
"result": taskResult.Result,
"runtime": runtime.Seconds(),
"hostname": hostname,
"timestamp": time.Now().Unix(),
}
return taskEvent
}
//NewTaskStartedEvent creates new event for task started
func NewTaskStartedEvent(task *Task) map[string]interface{} {
taskEvent := map[string]interface{}{
"type": TaskReceived,
"uuid": task.ID,
"pid": pid,
"hostname": hostname,
"timestamp": time.Now().Unix(),
}
return taskEvent
}