Initial commit of Ocean's local development

CustomerDB/AccessDB.go

@@ -0,0 +1,19 @@
+package CustomerDB
+
+import "labix.org/v2/mgo"
+
+/*
+Get the database instance of the MGo Mongo driver.
+*/
+func DB() (result *mgo.Database) {
+	result = db
+	return
+}
+
+/*
+Get directly the GridFS instance of the Mgo Mongo driver.
+*/
+func GridFS() (result *mgo.GridFS) {
+	result = gridFS
+	return
+}

CustomerDB/Doc.go

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+/*
+This package provides access to the customer database. To specific the customer database, please use the configuration database.
+By the way: Ocean uses MongoDB as database ;-) This package is just a facade to hide the complexity from MongoDB and its driver.
+*/
+package CustomerDB

CustomerDB/Init.go

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+package CustomerDB
+
+import "labix.org/v2/mgo"
+import "github.com/SommerEngineering/Ocean/ConfigurationDB"
+import "github.com/SommerEngineering/Ocean/Log"
+import LM "github.com/SommerEngineering/Ocean/Log/Meta"
+
+func init() {
+
+	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameDATABASE, `Init the customer database.`)
+
+	databaseHost := ConfigurationDB.Read(`CustomerDBHost`)
+	databaseDB := ConfigurationDB.Read(`CustomerDBDatabase`)
+	databaseUsername := ConfigurationDB.Read(`CustomerDBUsername`)
+	databasePassword := ConfigurationDB.Read(`CustomerDBPassword`)
+
+	// Connect to MongoDB:
+	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())
+		return
+	} else {
+		session = newSession
+	}
+
+	// Use the correct database:
+	db = session.DB(databaseDB)
+	if db == nil {
+		Log.LogFull(senderName, LM.CategorySYSTEM, LM.LevelERROR, LM.SeverityCritical, LM.ImpactCritical, LM.MessageNameDATABASE, `Was not able to get the customer database.`)
+		return
+	}
+
+	// Login:
+	if errLogin := db.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())
+		return
+	}
+
+	// Get the GridFS:
+	gridFS = db.GridFS(`fs`)
+	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.`)
+		return
+	}
+
+	// Ensure the indexes for the GridFS:
+	filesCollection := gridFS.Files
+	filesCollection.EnsureIndexKey(`uploadDate`)
+	filesCollection.EnsureIndexKey(`filename`)
+	filesCollection.EnsureIndexKey(`filename`, `uploadDate`)
+
+	Log.LogShort(senderName, LM.CategorySYSTEM, LM.LevelINFO, LM.MessageNameDATABASE, `Customer database is now ready.`)
+}

CustomerDB/Shutdown.go

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+package CustomerDB
+
+import "github.com/SommerEngineering/Ocean/Log"
+import LM "github.com/SommerEngineering/Ocean/Log/Meta"
+
+/*
+Please do not use this type. It is an internal type of Ocean to provide a shutdown function!
+*/
+type ShutdownFunction struct {
+}
+
+/*
+This function is called if the Ocean server is shutting down.
+*/
+func (a ShutdownFunction) Shutdown() {
+	Log.LogShort(senderName, LM.CategoryAPP, LM.LevelWARN, LM.MessageNameSHUTDOWN, `Close now the customer database connection.`)
+	db.Logout()
+	session.Close()
+}

CustomerDB/Variables.go

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+package CustomerDB
+
+import "labix.org/v2/mgo"
+import LM "github.com/SommerEngineering/Ocean/Log/Meta"
+
+var (
+	session    *mgo.Session  = nil
+	db         *mgo.Database = nil
+	gridFS     *mgo.GridFS   = nil
+	senderName LM.Sender     = `System::CustomerDB`
+)