Bug fixes and improvements

+ Add a function to the Tools package to provide the local IP address
and port
+ Add a function to the Tools package to provide a time as formated
string as yyyyMMdd hhmmss.fff
+ Improved the ICCC startup message: Now, the message contains the IP
address and port of the stared server
+ Add a new configuration to specific the necessary Ocean servers' port
(internally, not the public port)
+ The template package reports now which version out of the grid FS is
used.
+ The Ocean server is now bound to the correct IP address and port
(rule: the local IP address!)
+ The order of the system shutdown handlers were wrong!
+ The early ICCC messages problem is now fixed!
+ Fixed an ICCC bug for the case, that a message does not have any
payload!
+ Also the configuration database uses now the correct mgo MongoDB rules
(SetSafe & SetMode)

System/ICCCStart.go

@@ -1,8 +1,11 @@
 package System
 
+import "github.com/SommerEngineering/Ocean/ICCC"
 import "github.com/SommerEngineering/Ocean/Log"
 import LM "github.com/SommerEngineering/Ocean/Log/Meta"
 
 func icccSystemStart(data map[string][]string) {
-	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `The system is now up and ready.`)
+	_, _, obj := ICCC.Data2Message(&ICCCStartUpMessage{}, data)
+	messageData := obj.(*ICCCStartUpMessage)
+	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: The server is now up and ready.`, messageData.IPAddressAndPort)
 }

System/ICCCStartUp.go

@@ -0,0 +1,5 @@
+package System
+
+type ICCCStartUpMessage struct {
+	IPAddressAndPort string
+}

System/Init.go

@@ -84,13 +84,17 @@ func initSystem() {
 	//		* then, these system handlers are called (order: last comed, first served)
 	//		* and finally, the logging device / system gets closed
 	Shutdown.InitShutdown()
-	Shutdown.AddShutdownHandler(ICCC.ShutdownFunction{})
-	Shutdown.AddShutdownHandler(NumGen.ShutdownFunction{})
 	Shutdown.AddShutdownHandler(ConfigurationDB.ShutdownFunction{})
 	Shutdown.AddShutdownHandler(CustomerDB.ShutdownFunction{})
+	Shutdown.AddShutdownHandler(ICCC.ShutdownFunction{})
+	Shutdown.AddShutdownHandler(NumGen.ShutdownFunction{})
 
 	// The logging subsystem is not registered here, because it will be automated called at the end
 
 	// Register all system ICCC commands:
 	ICCC.Registrar(ICCC.ChannelSYSTEM, `System::Start`, icccSystemStart)
+
+	// Start the ICCC Listener Cache:
+	ICCC.InitCacheNow() // Blocking, until the job is done
+	ICCC.StartCacheTimer()
 }

System/Start.go

@@ -1,18 +1,20 @@
 package System
 
 import "net/http"
-import "github.com/SommerEngineering/Ocean/ConfigurationDB"
+import "github.com/SommerEngineering/Ocean/Tools"
 import "github.com/SommerEngineering/Ocean/ICCC"
 import "github.com/SommerEngineering/Ocean/Log"
 import LM "github.com/SommerEngineering/Ocean/Log/Meta"
 
 func StartAndBlockForever() {
-	oceanHostnameAndPort := ConfigurationDB.Read(`OceanHostnameAndPort`)
+	ipAddressPort := Tools.LocalIPAddressAndPort()
 
-	// Init ICCC:
-	ICCC.WriteMessage2All(ICCC.ChannelSYSTEM, `System::Start`, nil)
+	// Tell the whole cluster, that we are up and ready:
+	data := ICCCStartUpMessage{}
+	data.IPAddressAndPort = ipAddressPort
+	ICCC.WriteMessage2All(ICCC.ChannelSYSTEM, `System::Start`, data)
 
 	// Start and block:
-	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `Web server is now listening.`, `Configuration for hostname and port.`, oceanHostnameAndPort)
-	http.ListenAndServe(oceanHostnameAndPort, nil)
+	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `Web server is now listening.`, `Configuration for hostname and port.`, ipAddressPort)
+	http.ListenAndServe(ipAddressPort, nil)
 }