Merge pull request #50 from SommerEngineering/master

2.0.7

ConfigurationDB/ConnectDatabase.go

@@ -14,7 +14,7 @@ func connectDatabase(config Meta.Configuration) {
 	defer func() {
 		if err := recover(); err != nil {
 			fmt.Printf("[Error] Was not able to connect to the configuration database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", err)
-			os.Exit(0)
+			os.Exit(1)
 		}
 	}()
 
@@ -22,7 +22,7 @@ func connectDatabase(config Meta.Configuration) {
 	if newSession, errDial := mgo.Dial(config.ConfigDBHostname); errDial != nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `It was not possible to connect to the MongoDB host `+config.ConfigDBHostname, errDial.Error())
 		fmt.Printf("[Error] Was not able to connect to the configuration database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", errDial.Error())
-		os.Exit(0)
+		os.Exit(1)
 	} else {
 		session = newSession
 	}
@@ -34,7 +34,7 @@ func connectDatabase(config Meta.Configuration) {
 	if errLogin := db.Login(config.ConfigDBConfigurationCollectionUsername, config.ConfigDBConfigurationCollectionPassword); errLogin != nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelSECURITY, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `It was not possible to login the user `+config.ConfigDBConfigurationCollectionUsername, errLogin.Error())
 		fmt.Printf("[Error] Was not able to connect to the configuration database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", errLogin.Error())
-		os.Exit(0)
+		os.Exit(1)
 	}
 
 	// In case of write operations, wait for the majority of servers to be done:

CustomerDB/ConnectDatabase.go

@@ -13,7 +13,7 @@ func connectDatabase(host, username, password, database string) {
 	defer func() {
 		if err := recover(); err != nil {
 			fmt.Printf("[Error] Was not able to connect to the customer database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", err)
-			os.Exit(0)
+			os.Exit(2)
 		}
 	}()
 
@@ -21,7 +21,7 @@ func connectDatabase(host, username, password, database string) {
 	if newSession, errDial := mgo.Dial(host); errDial != nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `It was not possible to connect to the MongoDB host `+host, errDial.Error())
 		fmt.Printf("[Error] Was not able to connect to the customer database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", errDial.Error())
-		os.Exit(0)
+		os.Exit(2)
 	} else {
 		mainSession = newSession
 	}
@@ -31,14 +31,14 @@ func connectDatabase(host, username, password, database string) {
 	if db == nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameDATABASE, `Was not able to get the customer database.`)
 		fmt.Printf("[Error] Was not able to connect to the customer database. Please read https://github.com/SommerEngineering/Ocean.\n")
-		os.Exit(0)
+		os.Exit(2)
 	}
 
 	// Login:
 	if errLogin := db.Login(username, password); errLogin != nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelSECURITY, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `It was not possible to login the user `+databaseUsername, errLogin.Error())
 		fmt.Printf("[Error] Was not able to connect to the customer database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", errLogin.Error())
-		os.Exit(0)
+		os.Exit(2)
 	}
 
 	// In case of write operations, wait for the majority of servers to be done:
@@ -53,7 +53,7 @@ func connectDatabase(host, username, password, database string) {
 	if gridFS == nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameDATABASE, `Was not able to get the GridFS from the database.`)
 		fmt.Printf("[Error] Was not able to connect to the customer database. Please read https://github.com/SommerEngineering/Ocean.\n")
-		os.Exit(0)
+		os.Exit(2)
 	}
 
 	// Ensure the indexes for the GridFS:

Handlers/AddHandler.go

@@ -1,36 +1,37 @@
-package Handlers
-
-import (
-	"fmt"
-	"github.com/SommerEngineering/Ocean/Log"
-	LM "github.com/SommerEngineering/Ocean/Log/Meta"
-	"net/http"
-)
-
-// Function to add a new public handler.
-func AddPublicHandler(pattern string, handler func(http.ResponseWriter, *http.Request)) {
-	// In case of an error, catch the error:
-	defer func() {
-		if err := recover(); err != nil {
-			Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameSTATE, fmt.Sprintf("Was not able to add a public handler, because the path '%s' is already in use. %s", pattern, err))
-			return
-		}
-	}()
-
-	// Add the handler:
-	muxPublic.HandleFunc(pattern, handler)
-}
-
-// Function to add a new private handler.
-func AddAdminHandler(pattern string, handler func(http.ResponseWriter, *http.Request)) {
-	// In case of an error, catch the error:
-	defer func() {
-		if err := recover(); err != nil {
-			Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameSTATE, fmt.Sprintf("Was not able to add a private admin handler, because the path '%s' is already in use. %s", pattern, err))
-			return
-		}
-	}()
-
-	// Add the handler:
-	muxAdmin.HandleFunc(pattern, handler)
-}
+package Handlers
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/SommerEngineering/Ocean/Log"
+	LM "github.com/SommerEngineering/Ocean/Log/Meta"
+)
+
+// Function to add a new public handler.
+func AddPublicHandler(pattern string, handler func(http.ResponseWriter, *http.Request)) {
+	// In case of an error, catch the error:
+	defer func() {
+		if err := recover(); err != nil {
+			Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameSTATE, fmt.Sprintf("Was not able to add a public handler, because the path '%s' is already in use. %s", pattern, err))
+			return
+		}
+	}()
+
+	// Add the handler:
+	muxPublic.HandleFunc(pattern, handler)
+}
+
+// Function to add a new private handler.
+func AddAdminHandler(pattern string, handler func(http.ResponseWriter, *http.Request)) {
+	// In case of an error, catch the error:
+	defer func() {
+		if err := recover(); err != nil {
+			Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameSTATE, fmt.Sprintf("Was not able to add a private admin handler, because the path '%s' is already in use. %s", pattern, err))
+			return
+		}
+	}()
+
+	// Add the handler:
+	muxAdmin.HandleFunc(pattern, handler)
+}

ICCC/Doc.go

@@ -42,6 +42,6 @@ channel=CHANNEL
 checksum=[the SHA512 checksum of the message]
 
 Constrains to the environment:
-The web server cannot reorder the fields of the request or response. The order of fields at the data object (message) must correspond with the order of fields inside the HTTP message. Therefore, a reorder is not possible at the moment. Also, the three field names 'command', 'channel' and 'checksum' are reserved, thus, you cannot use these names.
+The three field names 'command', 'channel' and 'checksum' are reserved, thus, you cannot use these names.
 */
 package ICCC

ICCC/HTTPConnector.go

@@ -56,7 +56,7 @@ func ICCCHandler(response http.ResponseWriter, request *http.Request) {
 
 	if listener == nil {
 		// Case: No such listener
-		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelWARN, LM.SeverityCritical, LM.ImpactUnknown, LM.MessageNameCONFIGURATION, `Was not able to find the correct listener for these ICCC message.`, `channel=`+channel, `command`+command, `hostname=`+Tools.ThisHostname())
+		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelWARN, LM.SeverityCritical, LM.ImpactUnknown, LM.MessageNameCONFIGURATION, `Was not able to find the correct listener for these ICCC message.`, `channel=`+channel, `command=`+command, `hostname=`+Tools.ThisHostname())
 		http.NotFound(response, request)
 	} else {
 		// Case: Everything is fine => deliver the message and read the answer:

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/ICCCListenerUpdateReceiver.go

@@ -39,6 +39,7 @@ func ICCCListenerUpdateReceiver(data map[string][]string) (result map[string][]s
 		updatedObject.Command = messageData.Command
 		updatedObject.IPAddressPort = messageData.IPAddressPort
 		updatedObject.IsActive = messageData.IsActiveNew
+		updatedObject.Kind = messageData.Kind
 
 		// Update the entry:
 		if errUpdate := collectionListener.Update(selectionUpdate, updatedObject); errUpdate != nil {

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/SignMessage.go

@@ -6,6 +6,7 @@ import (
 	"github.com/SommerEngineering/Ocean/Tools"
 	"net/url"
 	"sort"
+	"strings"
 )
 
 // Sign a message to secure it.
@@ -32,7 +33,7 @@ func signMessage(data map[string][]string) (result url.Values) {
 	// Now, loop over all the data:
 	for _, key := range keys {
 		// Get the value:
-		value := data[key]
+		value := data[key][0]
 
 		// Hash each key and value:
 		fmt.Fprintf(hash, "key=%s :: value=%s\n", key, value)
@@ -42,6 +43,6 @@ func signMessage(data map[string][]string) (result url.Values) {
 	result = url.Values(data)
 
 	// Append the sign:
-	result.Add(`checksum`, fmt.Sprintf("%x", hash.Sum(nil)))
+	result.Add(`checksum`, strings.ToUpper(fmt.Sprintf("%x", hash.Sum(nil))))
 	return
 }

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/ICCCListenerUpdate.go

@@ -6,4 +6,5 @@ type ICCCListenerUpdate struct {
 	Command       string
 	IPAddressPort string
 	IsActiveNew   bool
+	Kind          byte
 }

ICCC/SystemMessages/ICCCNewLogEvent.go

@@ -0,0 +1,15 @@
+package SystemMessages
+
+// The message to send logging events over ICCC.
+type ICCCNewLogEvent struct {
+	Project            string
+	UnixTimestampUTC   int64
+	Sender             string
+	Category           string
+	Level              string
+	Severity           string
+	Impact             string
+	MessageName        string
+	MessageDescription string
+	Parameters         []string
+}

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

@@ -15,6 +15,10 @@ const (
 	ChannelSTARTUP  string = `System::Startup`  // A channel for system startup messages.
 	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()
 
@@ -21,9 +21,15 @@ 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 listener.Channel == channel && listener.Command == command {
-			matchingListener = append(matchingListener, listener)
+		// 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)
+			}
 		}
 	}
 

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()
 
@@ -22,10 +22,17 @@ 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 listener.Channel == channel && listener.Command == command {
-			entries = entries[:len(entries)+1]
-			entries[counter] = 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
+			}
 		}
 	}
 

Log/DeviceDatabase/InitDB.go

@@ -18,7 +18,7 @@ func initDatabase() {
 	defer func() {
 		if err := recover(); err != nil {
 			fmt.Printf("[Error] Was not able to connect to the logging database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", err)
-			os.Exit(0)
+			os.Exit(2)
 		}
 	}()
 
@@ -57,7 +57,7 @@ func initDatabase() {
 	if newSession, errDial := mgo.Dial(databaseHost); errDial != nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `It was not possible to connect to the MongoDB host `+databaseHost, errDial.Error())
 		fmt.Printf("[Error] Was not able to connect to the logging database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", errDial.Error())
-		os.Exit(0)
+		os.Exit(2)
 	} else {
 		logDBSession = newSession
 	}
@@ -69,7 +69,7 @@ func initDatabase() {
 	if errLogin := logDB.Login(databaseUsername, databasePassword); errLogin != nil {
 		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelSECURITY, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNameDATABASE, `It was not possible to login the user `+databaseUsername, errLogin.Error())
 		fmt.Printf("[Error] Was not able to connect to the logging database: %s. Please read https://github.com/SommerEngineering/Ocean.\n", errLogin.Error())
-		os.Exit(0)
+		os.Exit(2)
 	}
 
 	// Get the collection:

Log/GetProjectName.go

@@ -0,0 +1,7 @@
+package Log
+
+// This function provides the project name for e.g. logging events
+// coming trough the ICCC.
+func GetProjectName() string {
+	return projectName
+}

Log/Handlers.go

@@ -121,10 +121,16 @@ func clearEntry(entry Meta.Entry) (result Meta.Entry) {
 // Remove white spaces from the parameters.
 func clearParameters(oldParameters []string) (result []string) {
 	for n := 0; n < len(oldParameters); n++ {
+		// Remove white spaces:
 		oldParameters[n] = removeWhitespaces(oldParameters[n])
+
+		// Is content left after removing?
+		if oldParameters[n] != `` {
+			// Yes, some content is still there. Thus, commit this entry:
+			result = append(result, oldParameters[n])
+		}
 	}
 
-	result = oldParameters
 	return
 }
 

Log/ICCCLog/ICCCNewLogEventReceiver.go

@@ -0,0 +1,56 @@
+package ICCCLog
+
+import (
+	"github.com/SommerEngineering/Ocean/ICCC"
+	"github.com/SommerEngineering/Ocean/ICCC/SystemMessages"
+	"github.com/SommerEngineering/Ocean/Log"
+	LM "github.com/SommerEngineering/Ocean/Log/Meta"
+	"time"
+)
+
+// The receiver function for the ICCC new log event message.
+func ICCCNewLogEventReceiver(data map[string][]string) (result map[string][]string) {
+
+	// Recover from errors:
+	defer func() {
+		if err := recover(); err != nil {
+			Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityUnknown, LM.ImpactUnknown, LM.MessageNamePARSE, "Was not able to execute the ICCC new log event message.")
+			result = make(map[string][]string, 0)
+			return
+		}
+	}()
+
+	// Converts the HTTP form data into an object:
+	_, _, obj := ICCC.Data2Message(SystemMessages.ICCCNewLogEvent{}, data)
+
+	// Was it possible to convert the data?
+	if obj != nil {
+		// Cast the object to the right type:
+		messageData := obj.(SystemMessages.ICCCNewLogEvent)
+
+		// Provide a log entry:
+		logEntry := LM.Entry{}
+		logEntry.Project = Log.GetProjectName()
+		logEntry.Sender = LM.Sender(messageData.Sender)
+		logEntry.Category = LM.ParseCategory(messageData.Category)
+		logEntry.Level = LM.ParseLevel(messageData.Level)
+		logEntry.Severity = LM.ParseSeverity(messageData.Severity)
+		logEntry.Impact = LM.ParseImpact(messageData.Impact)
+		logEntry.MessageName = LM.MessageName(messageData.MessageName)
+		logEntry.MessageDescription = messageData.MessageDescription
+		logEntry.Parameters = messageData.Parameters
+		logEntry.Time = time.Unix(messageData.UnixTimestampUTC, 0).UTC()
+
+		// Deliver the log event:
+		Log.TakeEntry(logEntry)
+
+		// An answer is necessary:
+		return ICCC.Message2Data("", "", SystemMessages.AnswerACK)
+	} else {
+		Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: Was not able to create the message.`)
+	}
+
+	// In any other error case:
+	result = make(map[string][]string, 0)
+	return
+}

Log/ICCCLog/Variables.go

@@ -0,0 +1,9 @@
+package ICCCLog
+
+import (
+	"github.com/SommerEngineering/Ocean/Log/Meta"
+)
+
+var (
+	senderName Meta.Sender = `System::Log::ICCCLog`
+)

README.md

@@ -49,11 +49,11 @@ The second configuration file is **configuration.json**. It contains the configu
 
 ```JSON
 {
-	"ConfigDBHostname" : "127.0.0.1:27017",
-	"ConfigDBDatabase" : "MyOcean",
-	"ConfigDBConfigurationCollection" : "Configuration",
-	"ConfigDBConfigurationCollectionUsername" : "MyOceanConfig",
-	"ConfigDBConfigurationCollectionPassword" : "PWD"
+   "ConfigDBHostname" : "127.0.0.1:27017",
+   "ConfigDBDatabase" : "MyOcean",
+   "ConfigDBConfigurationCollection" : "Configuration",
+   "ConfigDBConfigurationCollectionUsername" : "MyOceanConfig",
+   "ConfigDBConfigurationCollectionPassword" : "PWD"
 }
 ```
 The `ConfigDBConfigurationCollection` collection gets automatically created. After both files are present and the MongoDB database or database cluster is running, Ocean is able to start. The database can and should be empty. Ocean does the configuration automatically. Due to this minimal local configuration and the distributed configuration database, the deployment of additional Ocean servers can be achieved by using e.g. data center scripts, etc.
@@ -91,7 +91,10 @@ exit
 * Finnaly, start Ocean again. The system should now run fine. Please have a look at the ICCC startup logging messages.
 
 ### Use Ocean as distributed messaging broker
-For this case, you can now start your other ICCC components. This are e.g. some Java, Python or C# programs which are using the Ocean ICCC drivers. These drivers currently under development and they will be available soon.
+For this case, you can now start your other ICCC components. This are e.g. some Java, Python or C# programs which are using the Ocean ICCC drivers. These drivers currently under development and they will be available soon. **The next priority:** OceanPy, the ICCC driver for Python.
+
+**Available ICCC drivers:**
+- [OceanNET - ICCC with .NET and C#](https://github.com/SommerEngineering/OceanNET)
 
 ### Use Ocean as framework e.g. for websites
 For this case, an example project with documentation is available here: https://github.com/SommerEngineering/Example003

System/ICCCComponentStartUpMessageReceiver.go

@@ -29,7 +29,7 @@ func icccComponentStartUpMessageReceiver(data map[string][]string) (result map[s
 		messageData := obj.(SystemMessages.ICCCComponentStartUpMessage)
 
 		// Provide a log entry:
-		Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: The external component is now up and ready.`, fmt.Sprintf("ipAddressPort=%s", messageData.IPAddressPort), fmt.Sprintf("name=", messageData.Name), fmt.Sprintf("version=", messageData.Version))
+		Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: The external component is now up and ready.`, fmt.Sprintf("ipAddressPort='%s'", messageData.IPAddressPort), fmt.Sprintf("name='%s'", messageData.Name), fmt.Sprintf("version='%s'", messageData.Version))
 
 		// An answer is necessary:
 		return ICCC.Message2Data("", "", SystemMessages.AnswerACK)

System/ICCCOceanStartUpMessageReceiver.go

@@ -29,7 +29,7 @@ func icccOceanStartUpMessageReceiver(data map[string][]string) (result map[strin
 		messageData := obj.(SystemMessages.ICCCOceanStartUpMessage)
 
 		// Provide a log entry:
-		Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: The Ocean server is now up and ready.`, fmt.Sprintf("public server=%s", messageData.PublicIPAddressPort), fmt.Sprintf("admin server=%s", messageData.AdminIPAddressPort), fmt.Sprintf("Ocean's version=%s", messageData.OceanVersion))
+		Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameSTARTUP, `ICCC message: The Ocean server is now up and ready.`, fmt.Sprintf("public server='%s'", messageData.PublicIPAddressPort), fmt.Sprintf("admin server='%s'", messageData.AdminIPAddressPort), fmt.Sprintf("Ocean's version='%s'", messageData.OceanVersion))
 
 		// An answer is necessary:
 		return ICCC.Message2Data("", "", SystemMessages.AnswerACK)

System/InitSystem.go

@@ -6,6 +6,7 @@ import (
 	"github.com/SommerEngineering/Ocean/CustomerDB"
 	"github.com/SommerEngineering/Ocean/ICCC"
 	"github.com/SommerEngineering/Ocean/Log"
+	"github.com/SommerEngineering/Ocean/Log/ICCCLog"
 	LM "github.com/SommerEngineering/Ocean/Log/Meta"
 	"github.com/SommerEngineering/Ocean/NumGen"
 	"github.com/SommerEngineering/Ocean/Shutdown"
@@ -104,11 +105,12 @@ func initSystem() {
 	ICCC.Registrar(ICCC.ChannelICCC, `ICCC::DeleteListener`, ICCC.ICCCDeleteListenerReceiver)
 	ICCC.Registrar(ICCC.ChannelICCC, `ICCC::DeleteHost`, ICCC.ICCCDeleteHostReceiver)
 	ICCC.Registrar(ICCC.ChannelICCC, `ICCC::ListenerUpdate`, ICCC.ICCCListenerUpdateReceiver)
-	ICCC.Registrar(ICCC.ChannelICCC, `Ping::Ping`, ICCC.ICCCPingReceiver)
+	ICCC.Registrar(ICCC.ChannelPING, `Ping::Ping`, ICCC.ICCCPingReceiver)
 	ICCC.Registrar(ICCC.ChannelSYSTEM, `System::Version`, ICCC.ICCCGetVersionReceiver)
 	ICCC.Registrar(ICCC.ChannelICCC, `ICCC::GetHosts`, ICCC.ICCCGetHostsReceiver)
 	ICCC.Registrar(ICCC.ChannelICCC, `ICCC::GetListeners`, ICCC.ICCCGetListenersReceiver)
 	ICCC.Registrar(ICCC.ChannelNUMGEN, `NumGen::Next`, NumGen.ICCCNextNumberReceiver)
+	ICCC.Registrar(ICCC.ChannelLOGGING, `Logging::NewLogEvent`, ICCCLog.ICCCNewLogEventReceiver)
 
 	// Start the ICCC Listener Cache:
 	ICCC.InitCacheNow() // Blocking, until the job is done

System/Version/Variables.go

@@ -1,5 +1,5 @@
 package Version
 
 var (
-	oceansVersion string = `2.0.0` // Ocean's current version
+	oceansVersion string = `2.0.7` // 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)