first commit

utils.go

@@ -0,0 +1,70 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"os"
+	"os/signal"
+	"strconv"
+	"syscall"
+)
+
+func FreqMhztoHz(freq string) string {
+	frequency, err := strconv.ParseFloat(freq, 64)
+	if err != nil {
+		log.Println("could not convert frequency string to int", err)
+	}
+
+	frequency = frequency / 1000
+
+	return strconv.FormatFloat(frequency, 'f', 6, 64)
+}
+
+func FreqHztoMhz(freq string) string {
+	frequency, err := strconv.ParseFloat(freq, 64)
+	if err != nil {
+		log.Println("could not convert frequency string to int", err)
+	}
+
+	frequency = frequency * 1000
+
+	return strconv.FormatFloat(frequency, 'f', 6, 64)
+}
+
+func CheckSignal(TCPClient *TCPClient, TCPServer *TCPServer, FlexClient *FlexClient, fRepo *FlexDXClusterRepository, cRepo *Log4OMContactsRepository) {
+
+	sigCh := make(chan os.Signal, 1)
+	signal.Notify(sigCh, syscall.SIGHUP, syscall.SIGINT, syscall.SIGQUIT, syscall.SIGTERM)
+
+	// Gracely closing all connextions if signal is received
+	for sig := range sigCh {
+		Log.Infof("received signal: %v, shutting down all connections.", sig)
+
+		TCPClient.Close()
+		TCPServer.Conn.Close()
+		FlexClient.Conn.Close()
+
+		if err := fRepo.db.Close(); err != nil {
+			Log.Error("failed to close the database connection properly")
+			os.Exit(1)
+		}
+
+		if err := cRepo.db.Close(); err != nil {
+			Log.Error("failed to close Log4OM database connection properly")
+			os.Exit(1)
+		}
+
+		os.Exit(0)
+	}
+}
+
+func SendUDPMessage(message string) {
+	conn, err := net.Dial("udp", "127.0.0.1:2241")
+	if err != nil {
+		fmt.Printf("Some error %v", err)
+		return
+	}
+	conn.Write([]byte(message))
+	conn.Close()
+}