refactoring: Tiny refactoring (#47)

* tiny refactoring name convention, and file name.

* added command line arguments files

* fix typo comment

main.go

@@ -3,14 +3,23 @@ package main
 import (
 	"beelzebub/builder"
 	"beelzebub/parser"
+	"flag"
 	"fmt"
+
 	log "github.com/sirupsen/logrus"
 )
 
 var quit = make(chan struct{})
 
 func main() {
-	parser := parser.Init("./configurations/beelzebub.yaml", "./configurations/services/")
+	var configurationsCorePath string
+	var configurationsServicesDirectory string
+
+	flag.StringVar(&configurationsCorePath, "confCore", "./configurations/beelzebub.yaml", "Provide the path of configurations core")
+	flag.StringVar(&configurationsServicesDirectory, "confServices", "./configurations/services/", "Directory config services")
+	flag.Parse()
+
+	parser := parser.Init(configurationsCorePath, configurationsServicesDirectory)
 
 	coreConfigurations, err := parser.ReadConfigurationsCore()
 	failOnError(err, fmt.Sprintf("Error during ReadConfigurationsCore: "))
@@ -23,14 +32,11 @@ func main() {
 	director := builder.NewDirector(beelzebubBuilder)
 
 	beelzebubBuilder, err = director.BuildBeelzebub(coreConfigurations, beelzebubServicesConfiguration)
-	if err != nil {
-		log.Fatal(err)
-	}
+	failOnError(err, fmt.Sprintf("Error during BuildBeelzebub: "))
+
+	err = beelzebubBuilder.Run()
+	failOnError(err, fmt.Sprintf("Error during run beelzebub core: "))
 
-	if err := beelzebubBuilder.Run(); err != nil {
-		log.Fatal(err)
-		return
-	}
 	defer beelzebubBuilder.Close()
 
 	<-quit