Implemented the fixed ICCC driver specification

ICCC/ICCCGetHostsReceiver.go

@@ -35,6 +35,7 @@ func ICCCGetHostsReceiver(data map[string][]string) (result map[string][]string)
 		answerMessage := SystemMessages.ICCCGetHostsAnswer{}
 		answerMessage.Hostnames = make([]string, countHosts, countHosts)
 		answerMessage.IPAddressesPorts = make([]string, countHosts, countHosts)
+		answerMessage.Kinds = make([]byte, countHosts, countHosts)
 
 		// Loop over all hosts which are currently available at the cache:
 		n := 0
@@ -42,6 +43,7 @@ func ICCCGetHostsReceiver(data map[string][]string) (result map[string][]string)
 			host := entry.Value.(Scheme.Host)
 			answerMessage.Hostnames[n] = host.Hostname
 			answerMessage.IPAddressesPorts[n] = host.IPAddressPort
+			answerMessage.Kinds[n] = host.Kind
 			n++
 		}
 

ICCC/ICCCGetListenersReceiver.go

@@ -36,6 +36,7 @@ func ICCCGetListenersReceiver(data map[string][]string) (result map[string][]str
 		answerMessage.Channels = make([]string, countListeners, countListeners)
 		answerMessage.Commands = make([]string, countListeners, countListeners)
 		answerMessage.IPAddressesPorts = make([]string, countListeners, countListeners)
+		answerMessage.Kinds = make([]byte, countListeners, countListeners)
 
 		// Loop over all hosts which are currently available at the cache:
 		n := 0
@@ -44,6 +45,7 @@ func ICCCGetListenersReceiver(data map[string][]string) (result map[string][]str
 			answerMessage.Channels[n] = listener.Channel
 			answerMessage.Commands[n] = listener.Command
 			answerMessage.IPAddressesPorts[n] = listener.IPAddressPort
+			answerMessage.Kinds[n] = listener.Kind
 			n++
 		}
 

ICCC/ICCCGetVersionReceiver.go

@@ -28,7 +28,7 @@ func ICCCGetVersionReceiver(data map[string][]string) (result map[string][]strin
 
 		// Prepare the answer:
 		answer := SystemMessages.ICCCGetVersionAnswer{}
-		answer.Kind = `Ocean`
+		answer.Kind = KindOCEAN
 		answer.Name = Tools.ThisHostname()
 		answer.Version = Version.GetVersion()
 

ICCC/ICCCRegisterHostReceiver.go

@@ -31,7 +31,7 @@ func ICCCRegisterHostReceiver(data map[string][]string) (result map[string][]str
 		Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: Register another host.`, fmt.Sprintf("hostname=%s", messageData.Hostname), fmt.Sprintf("ipAddressPort=%s", messageData.IPAddressPort))
 
 		// Execute the command:
-		registerHost2Database(messageData.Hostname, messageData.IPAddressPort)
+		registerHost2Database(messageData.Hostname, messageData.IPAddressPort, messageData.Kind)
 
 		// Update the caches:
 		InitCacheNow()

ICCC/ICCCRegisterListenerReceiver.go

@@ -31,7 +31,7 @@ func ICCCRegisterListenerReceiver(data map[string][]string) (result map[string][
 		Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: Should register another listener.`, `channel=`+messageData.Channel, `command=`+messageData.Command, `IPAddressPort=`+messageData.IPAddressPort, fmt.Sprintf(`isActive=%v`, messageData.IsActive))
 
 		// Execute the command:
-		registerListener2Database(messageData.Channel, messageData.Command, messageData.IPAddressPort, messageData.IsActive)
+		registerListener2Database(messageData.Channel, messageData.Command, messageData.IPAddressPort, messageData.IsActive, messageData.Kind)
 
 		// Update the caches:
 		InitCacheNow()

ICCC/InitDB.go

@@ -28,6 +28,7 @@ func initDB() {
 	//
 	// Take care about the indexes for ICCCListener:
 	//
+	collectionListener.EnsureIndexKey(`Kind`)
 	collectionListener.EnsureIndexKey(`Command`)
 	collectionListener.EnsureIndexKey(`Command`, `IsActive`)
 
@@ -52,6 +53,7 @@ func initDB() {
 	//
 	// Index for hosts:
 	//
+	collectionHosts.EnsureIndexKey(`Kind`)
 	collectionHosts.EnsureIndexKey(`Hostname`)
 	collectionHosts.EnsureIndexKey(`IPAddressPort`)
 

ICCC/RegisterHost2Database.go

@@ -8,12 +8,13 @@ import (
 )
 
 // Function to register a server to the ICCC.
-func registerHost2Database(hostname, ipAddressPort string) {
+func registerHost2Database(hostname, ipAddressPort string, kind byte) {
 
 	// Create the host entry:
 	host := Scheme.Host{}
 	host.Hostname = hostname
 	host.IPAddressPort = ipAddressPort
+	host.Kind = kind
 
 	// The query to find already existing entries:
 	selection := bson.D{{`Hostname`, host.Hostname}, {`IPAddressPort`, host.IPAddressPort}}

ICCC/RegisterListener2Database.go

@@ -9,7 +9,7 @@ import (
 )
 
 // The internal function to register an listener to ICCC.
-func registerListener2Database(channel, command, ipAddressPort string, isActive bool) {
+func registerListener2Database(channel, command, ipAddressPort string, isActive bool, kind byte) {
 	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `Register this ICCC command in to the database.`, `channel=`+channel, `command=`+command, `IPAddressPort=`+ipAddressPort, fmt.Sprintf("isActive=%v", isActive))
 
 	entry := Scheme.Listener{}
@@ -17,6 +17,7 @@ func registerListener2Database(channel, command, ipAddressPort string, isActive
 	entry.Command = command
 	entry.IsActive = isActive
 	entry.IPAddressPort = ipAddressPort
+	entry.Kind = kind
 
 	//
 	// Case: Exists?

ICCC/RegisterLocalListener2Database.go

@@ -8,5 +8,5 @@ func registerLocalListener2Database(channel, command string) {
 		there would be no server which can execute the ICCC command.
 		Therefore, every Ocean server registers the own listeners directly.
 	*/
-	registerListener2Database(channel, command, correctAddressWithPort, true)
+	registerListener2Database(channel, command, correctAddressWithPort, true, KindOCEAN)
 }

ICCC/RegisterThisHost2Database.go

@@ -12,5 +12,5 @@ func registerThisHost2Database() {
 		there would be no server which can execute the ICCC command.
 		Therefore, every Ocean server registers the own host directly.
 	*/
-	registerHost2Database(Tools.ThisHostname(), correctAddressWithPort)
+	registerHost2Database(Tools.ThisHostname(), correctAddressWithPort, KindOCEAN)
 }

ICCC/Scheme/Host.go

@@ -4,4 +4,5 @@ package Scheme
 type Host struct {
 	Hostname      string `bson:"Hostname"`
 	IPAddressPort string `bson:"IPAddressPort"`
+	Kind          byte   `bson:"Kind"`
 }

ICCC/Scheme/Listener.go

@@ -6,4 +6,5 @@ type Listener struct {
 	Command       string `bson:"Command"`
 	IsActive      bool   `bson:"IsActive"`
 	IPAddressPort string `bson:"IPAddressPort"`
+	Kind          byte   `bson:"Kind"`
 }

ICCC/SystemMessages/ICCCGetHosts.go

@@ -8,4 +8,5 @@ type ICCCGetHosts struct {
 type ICCCGetHostsAnswer struct {
 	Hostnames        []string
 	IPAddressesPorts []string
+	Kinds            []byte
 }

ICCC/SystemMessages/ICCCGetListeners.go

@@ -9,4 +9,5 @@ type ICCCGetListenersAnswer struct {
 	Channels         []string
 	Commands         []string
 	IPAddressesPorts []string
+	Kinds            []byte
 }

ICCC/SystemMessages/ICCCGetVersion.go

@@ -6,7 +6,7 @@ type ICCCGetVersion struct {
 
 // Answer to the version request
 type ICCCGetVersionAnswer struct {
-	Kind    string // Ocean || Component
+	Kind    byte   // Ocean || Component
 	Name    string // Ocean: Hostname; Components: Name
 	Version string // The current version
 }

ICCC/SystemMessages/ICCCRegisterHost.go

@@ -4,4 +4,5 @@ package SystemMessages
 type ICCCRegisterHost struct {
 	Hostname      string // The hostname for the end-point
 	IPAddressPort string // The IP address and port for the end-point
+	Kind          byte   // Ocean || Component
 }

ICCC/SystemMessages/ICCCRegisterListener.go

@@ -6,4 +6,5 @@ type ICCCRegisterListener struct {
 	Command       string // The provided command
 	IsActive      bool   // Is the command active?
 	IPAddressPort string // The IP address and port for the end-point
+	Kind          byte   // Ocean || Component
 }

ICCC/Variables.go

@@ -16,6 +16,9 @@ const (
 	ChannelICCC     string = `System::ICCC`     // A common ICCC channel.
 	ChannelPING     string = `System::Ping`     // A channel for pings.
 	ChannelLOGGING  string = `System::Logging`  // A channel for send log events to the logging system
+	KindOCEAN       byte   = 0x0
+	KindComponent   byte   = 0x1
+	KindALL         byte   = 0xFF
 )
 
 var (

ICCC/WriteMessage2All.go

@@ -7,7 +7,7 @@ import (
 )
 
 // Function to broadcast a message to all listeners.
-func WriteMessage2All(channel, command string, message interface{}, answerPrototype interface{}) (results []interface{}) {
+func WriteMessage2All(channel, command string, kind byte, message interface{}, answerPrototype interface{}) (results []interface{}) {
 	cacheListenerDatabaseLock.RLock()
 	defer cacheListenerDatabaseLock.RUnlock()
 
@@ -21,10 +21,16 @@ func WriteMessage2All(channel, command string, message interface{}, answerProtot
 	for entry := cacheListenerDatabase.Front(); entry != nil; entry = entry.Next() {
 		listener := entry.Value.(Scheme.Listener)
 
-		// If the channel and the command matches, deliver the message:
+		// If the channel, command and kind matches, deliver the message:
+		if kind == KindALL {
 			if listener.Channel == channel && listener.Command == command {
 				matchingListener = append(matchingListener, listener)
 			}
+		} else {
+			if listener.Channel == channel && listener.Command == command && listener.Kind == kind {
+				matchingListener = append(matchingListener, listener)
+			}
+		}
 	}
 
 	// Was not able to find any matching listener?

ICCC/WriteMessage2Any.go

@@ -8,7 +8,7 @@ import (
 )
 
 // Function to write a message to any listener.
-func WriteMessage2Any(channel, command string, message interface{}, answerPrototype interface{}) (result interface{}) {
+func WriteMessage2Any(channel, command string, kind byte, message interface{}, answerPrototype interface{}) (result interface{}) {
 	cacheListenerDatabaseLock.RLock()
 	defer cacheListenerDatabaseLock.RUnlock()
 
@@ -22,11 +22,18 @@ func WriteMessage2Any(channel, command string, message interface{}, answerProtot
 	for entry := cacheListenerDatabase.Front(); entry != nil; entry = entry.Next() {
 		listener := entry.Value.(Scheme.Listener)
 
-		// If the channel and the command matches, store the listener:
+		// If the channel, command and kind matches, store the listener:
+		if kind == KindALL {
 			if listener.Channel == channel && listener.Command == command {
 				entries = entries[:len(entries)+1]
 				entries[counter] = listener
 			}
+		} else {
+			if listener.Channel == channel && listener.Command == command && listener.Kind == kind {
+				entries = entries[:len(entries)+1]
+				entries[counter] = listener
+			}
+		}
 	}
 
 	count := len(entries)

System/Version/Variables.go

@@ -1,5 +1,5 @@
 package Version
 
 var (
-	oceansVersion string = `2.0.0` // Ocean's current version
+	oceansVersion string = `2.0.2` // Ocean's current version
 )

WebServer/Start.go

@@ -30,7 +30,7 @@ func Start() {
 	}
 
 	// Notify the whole cluster, that this server is now up and ready:
-	answers := ICCC.WriteMessage2All(ICCC.ChannelSTARTUP, `System::OceanStart`, data, SystemMessages.ICCCDefaultAnswer{})
+	answers := ICCC.WriteMessage2All(ICCC.ChannelSTARTUP, `System::OceanStart`, ICCC.KindALL, data, SystemMessages.ICCCDefaultAnswer{})
 	for n, obj := range answers {
 		if obj != nil {
 			answer := obj.(SystemMessages.ICCCDefaultAnswer)