openreplay/backend/cmd/ender/main.go
2022-05-06 12:21:43 +02:00

79 lines
2.1 KiB
Go

package main
import (
"log"
"openreplay/backend/internal/config/ender"
"openreplay/backend/internal/sessionender"
"time"
"os"
"os/signal"
"syscall"
"openreplay/backend/pkg/intervals"
logger "openreplay/backend/pkg/log"
"openreplay/backend/pkg/messages"
"openreplay/backend/pkg/queue"
"openreplay/backend/pkg/queue/types"
)
func main() {
log.SetFlags(log.LstdFlags | log.LUTC | log.Llongfile)
// Load service configuration
cfg := ender.New()
// Init all modules
statsLogger := logger.NewQueueStats(cfg.LoggerTimeout)
sessions := sessionender.New(intervals.EVENTS_SESSION_END_TIMEOUT)
producer := queue.NewProducer()
consumer := queue.NewMessageConsumer(
cfg.GroupEvents,
[]string{
cfg.TopicRawWeb,
cfg.TopicRawIOS,
},
func(sessionID uint64, msg messages.Message, meta *types.Meta) {
statsLogger.Collect(sessionID, meta)
sessions.UpdateSession(sessionID, messages.GetTimestamp(msg))
},
false,
)
log.Printf("Ender service started\n")
sigchan := make(chan os.Signal, 1)
signal.Notify(sigchan, syscall.SIGINT, syscall.SIGTERM)
tick := time.Tick(intervals.EVENTS_COMMIT_INTERVAL * time.Millisecond)
for {
select {
case sig := <-sigchan:
log.Printf("Caught signal %v: terminating\n", sig)
producer.Close(cfg.ProducerTimeout)
if err := consumer.CommitBack(intervals.EVENTS_BACK_COMMIT_GAP); err != nil {
log.Printf("can't commit messages with offset: %s", err)
}
consumer.Close()
os.Exit(0)
case <-tick:
// Find ended sessions and send notification to other services
sessions.HandleEndedSessions(func(sessionID uint64, timestamp int64) bool {
msg := &messages.SessionEnd{Timestamp: uint64(timestamp)}
if err := producer.Produce(cfg.TopicTrigger, sessionID, messages.Encode(msg)); err != nil {
log.Printf("can't send message to queue: %s", err)
return false
}
return true
})
producer.Flush(cfg.ProducerTimeout)
if err := consumer.CommitBack(intervals.EVENTS_BACK_COMMIT_GAP); err != nil {
log.Printf("can't commit messages with offset: %s", err)
}
default:
if err := consumer.ConsumeNext(); err != nil {
log.Fatalf("Error on consuming: %v", err)
}
}
}
}