logger instance adding

logger/logger.go

@@ -0,0 +1,74 @@
+package logger
+
+import (
+	"fmt"
+	"github.com/phuhao00/spoor"
+	"log"
+	"sync"
+)
+
+var (
+	sp             *spoor.Spoor
+	onceInitLogger sync.Once
+)
+
+func GetLogger() *spoor.Spoor {
+	return sp
+}
+
+type LoggingSetting struct {
+	Dir          string
+	Level        int
+	Prefix       string
+	WriterOption spoor.Option
+}
+
+func SetLogging(setting *LoggingSetting) {
+	onceInitLogger.Do(func() {
+		var opt spoor.Option
+		if setting.WriterOption == nil {
+			fileWriter := spoor.NewFileWriter(setting.Dir, 0, 0, 0)
+			opt = spoor.WithFileWriter(fileWriter)
+		} else {
+			opt = setting.WriterOption
+		}
+		l := spoor.NewSpoor(spoor.Level(setting.Level), setting.Prefix, log.Ldate|log.Ltime|log.Lmicroseconds|log.Llongfile, opt)
+		sp = l
+	})
+}
+
+// Debug Log line format: [IWEF]mmdd hh:mm:sLogger.uuuuuu threadid file:line] msg
+func Debug(f string, args ...interface{}) {
+	if sp.CheckLevel(spoor.DEBUG) {
+		return
+	}
+	sp.Output(2, fmt.Sprintf(spoor.DEBUG.String()+" "+f, args...))
+}
+
+func Error(f string, args ...interface{}) {
+	if sp.CheckLevel(spoor.ERROR) {
+		return
+	}
+	sp.Output(2, fmt.Sprintf(spoor.ERROR.String()+" "+f, args...))
+}
+
+func Info(f string, args ...interface{}) {
+	if sp.CheckLevel(spoor.INFO) {
+		return
+	}
+	sp.Output(2, fmt.Sprintf(spoor.INFO.String()+" "+f, args...))
+}
+
+func Warn(f string, args ...interface{}) {
+	if sp.CheckLevel(spoor.WARN) {
+		return
+	}
+	sp.Output(2, fmt.Sprintf(spoor.WARN.String()+" "+f, args...))
+}
+
+func Fatal(f string, args ...interface{}) {
+	if sp.CheckLevel(spoor.FATAL) {
+		return
+	}
+	sp.Output(2, fmt.Sprintf(spoor.FATAL.String()+" "+f, args...))
+}