shared-sqs: Этап 1 — клон GoAWS, удаление SNS, go build OK

shared-sqs/app/gosqs/gosqs.go

@@ -0,0 +1,82 @@
+package gosqs
+
+import (
+	"net/url"
+	"time"
+
+	"shared-sqs/app/models"
+
+	log "github.com/sirupsen/logrus"
+)
+
+func init() {
+	models.SyncQueues.Queues = make(map[string]*models.Queue)
+}
+
+func PeriodicTasks(d time.Duration, quit chan bool) {
+	ticker := time.NewTicker(d)
+	for {
+		select {
+		case <-ticker.C:
+			models.SyncQueues.Lock()
+			for qName := range models.SyncQueues.Queues {
+				queue := models.SyncQueues.Queues[qName]
+
+				// Reset deduplication period
+				for dedupId, startTime := range queue.Duplicates {
+					if time.Now().After(startTime.Add(models.DeduplicationPeriod)) {
+						log.Debugf("deduplication period for message with deduplicationId [%s] expired", dedupId)
+						delete(queue.Duplicates, dedupId)
+					}
+				}
+
+				log.Debugf("Queue [%s] length [%d]", queue.Name, len(queue.Messages))
+				for i := 0; i < len(queue.Messages); i++ {
+					msg := &queue.Messages[i]
+
+					if msg.ReceiptHandle != "" {
+						if msg.VisibilityTimeout.Before(time.Now()) {
+							log.Debugf("Making message visible again %s", msg.ReceiptHandle)
+							queue.UnlockGroup(msg.GroupID)
+							msg.ReceiptHandle = ""
+							msg.ReceiptTime = time.Now().UTC()
+							msg.Retry++
+							if queue.MaxReceiveCount > 0 &&
+								queue.DeadLetterQueue != nil &&
+								msg.Retry >= queue.MaxReceiveCount {
+								queue.DeadLetterQueue.Messages = append(queue.DeadLetterQueue.Messages, *msg)
+								queue.Messages = append(queue.Messages[:i], queue.Messages[i+1:]...)
+								i--
+							}
+						}
+					}
+				}
+			}
+			models.SyncQueues.Unlock()
+		case <-quit:
+			ticker.Stop()
+			return
+		}
+	}
+}
+
+func numberOfHiddenMessagesInQueue(queue models.Queue) int {
+	num := 0
+	for _, m := range queue.Messages {
+		if m.ReceiptHandle != "" || m.DelaySecs > 0 && time.Now().Before(m.SentTime.Add(time.Duration(m.DelaySecs)*time.Second)) {
+			num++
+		}
+	}
+	return num
+}
+
+func getQueueFromPath(formVal string, theUrl string) string {
+	if formVal != "" {
+		return formVal
+	}
+	u, err := url.Parse(theUrl)
+	if err != nil {
+		return ""
+	}
+	return u.Path
+}