Bug fixing

+ DB access is now right and uses copied sessions
+ DB session is now specifying the safe state and the mode
+ Fixed the issue with too early ICCC messages regarding to late cache
+ Add the MIME type for Dart
+ Fixed the issuse with wrong order of shutdown handlers
- TODO: Testing of these changes

ICCC/Doc.go

@@ -1,4 +1,4 @@
 /*
-This is the "[I]nter Data [C]enter Se[c]ure [C]ommunication" :)
+This is the "[I]nter Data [C]enter and Appli[c]ation [C]ommunication"
 */
 package ICCC

ICCC/Init.go

@@ -21,5 +21,6 @@ func init() {
 
 	initDB()
 	registerHost2Database()
+	cacheTimerLogic(false)
 	initCacheTimer()
 }

ICCC/InitDB.go

@@ -10,7 +10,7 @@ func initDB() {
 	defer Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameINIT, `Done init the ICCC collection.`)
 
 	// Get the database:
-	db = CustomerDB.DB()
+	dbSession, db = CustomerDB.DB()
 
 	if db == nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameDATABASE, `Was not able to get the customer database.`)

ICCC/ListenerCache.go

@@ -9,33 +9,38 @@ import "github.com/SommerEngineering/Ocean/Log"
 import LM "github.com/SommerEngineering/Ocean/Log/Meta"
 
 func initCacheTimer() {
-
 	go func() {
 		for {
-
-			if Shutdown.IsDown() {
-				return
-			}
-
-			lastCount := cacheListenerDatabase.Len()
-			selection := bson.D{{`IsActive`, true}}
-			entriesIterator := collectionListener.Find(selection).Iter()
-			entry := Scheme.Listener{}
-
-			cacheListenerDatabaseLock.Lock()
-			cacheListenerDatabase.Init()
-			for entriesIterator.Next(&entry) {
-				cacheListenerDatabase.PushBack(entry)
-			}
-
-			cacheListenerDatabaseLock.Unlock()
-			nextDuration := time.Duration(5) * time.Minute
-			if cacheListenerDatabase.Len() == 0 {
-				nextDuration = time.Duration(10) * time.Second
-			}
-
-			Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameEXECUTE, `The listener cache was refreshed with the values from the database.`, fmt.Sprintf(`last count=%d`, lastCount), fmt.Sprintf(`new count=%d`, cacheListenerDatabase.Len()))
-			time.Sleep(nextDuration)
+			cacheTimerLogic(true)
 		}
 	}()
 }
+
+func cacheTimerLogic(waiting bool) {
+	if Shutdown.IsDown() {
+		return
+	}
+
+	lastCount := cacheListenerDatabase.Len()
+	selection := bson.D{{`IsActive`, true}}
+	entriesIterator := collectionListener.Find(selection).Iter()
+	entry := Scheme.Listener{}
+
+	cacheListenerDatabaseLock.Lock()
+	cacheListenerDatabase.Init()
+	for entriesIterator.Next(&entry) {
+		cacheListenerDatabase.PushBack(entry)
+	}
+
+	cacheListenerDatabaseLock.Unlock()
+	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameEXECUTE, `The listener cache was refreshed with the values from the database.`, fmt.Sprintf(`last count=%d`, lastCount), fmt.Sprintf(`new count=%d`, cacheListenerDatabase.Len()))
+
+	if waiting {
+		nextDuration := time.Duration(5) * time.Minute
+		if cacheListenerDatabase.Len() == 0 {
+			nextDuration = time.Duration(10) * time.Second
+		}
+
+		time.Sleep(nextDuration)
+	}
+}

ICCC/Shutdown.go

@@ -26,5 +26,7 @@ func (a ShutdownFunction) Shutdown() {
 		collectionListener.Update(selectionUpdate, entry)
 	}
 
+	db.Logout()
+	dbSession.Close()
 	Log.LogShort(senderName, LM.CategoryAPP, LM.LevelWARN, LM.MessageNameSHUTDOWN, `Done shutting down now all ICCC listener for this host.`)
 }

ICCC/Variables.go

@@ -16,6 +16,7 @@ const (
 var (
 	senderName                LM.Sender                                 = `ICCC`
 	db                        *mgo.Database                             = nil
+	dbSession                 *mgo.Session                              = nil
 	collectionListener        *mgo.Collection                           = nil
 	collectionHosts           *mgo.Collection                           = nil
 	reservedSystemChannels    []string                                  = []string{ChannelSYSTEM, ChannelNUMGEN, ChannelSHUTDOWN, ChannelSTARTUP, ChannelICCC}