Logger factory interface implementation done.

Author: divy9881

src/log/DefaultLogger.h

@@ -0,0 +1,32 @@
+#include <string>
+
+#include "Logger.h"
+#include "Log.h"
+
+class DefaultLogger : public Logger{
+    private:
+        bool enable;
+    
+    public:
+        void EnableLog(bool enable) {
+            this->enable = enable;
+        }
+
+        bool IsEnabled() {
+            return this->enable;
+        }
+
+        template <typename... Object>
+        void Print(Object... objects){
+            if (this->enable){
+                Print(object...);
+            }
+        }
+
+        template <typename... Object>
+        void Print(std::string format, Object... objects){
+            if (this->enable){
+                Printf(format, object...);
+            }
+        }
+};

src/log/Log.h

@@ -0,0 +1,32 @@
+#include <string>
+
+#include "DefaultLogger.h"
+#include "Logger.h"
+
+class LogUtil{
+	private:
+		static Logger logger;
+	public:
+
+		// SetLogger sets the current logger.
+		static void SetLogger(Logger l){
+			logger = l;
+		}
+
+		// GetLogger returns the current logger.
+		static Logger GetLogger() {
+			return logger;
+		}
+
+		// LogPrint prints the log.
+		template <typename... Object>
+		static void LogPrint(Object... objects) {
+			logger.Print(objects...);
+		}
+
+		// LogPrintf prints the log with the format.
+		template <typename... Object>
+		static void LogPrintf(std::string format, Object... objects) {
+			logger.Printf(format, objects...)
+		}
+};

src/log/LogUtil.h

@@ -0,0 +1,18 @@
+#include <string>
+
+class Logger{
+    public:
+        //EnableLog controls whether print the message.
+        void EnableLog(bool enable);
+
+        //IsEnabled returns if logger is enabled.
+        bool IsEnabled();
+
+        //Print formats using the default formats for its operands and logs the message.
+        template <typename... Object>
+        void Print(Object... objects);
+
+        //Printf formats according to a format specifier and logs the message.
+        template <typename... Object>
+        void Printf(std::string, Object... objects);
+};