END

ArgParser.hpp

@@ -11,8 +11,10 @@ class ArgParser
 public:
 	ArgParser()
 		: m_print_to_console(false)
-		, m_print_timestamp(false)
 		, m_logFile()
+		, m_timestamp(false)
+		, m_hostname(false)
+		, m_username(false)
 		{}
 
 	void printUsage(bool cout = true)
@@ -23,12 +25,14 @@ public:
 		<< "Logs the input (till EOF) to the console or to a file.\n"
 		<< "\n"
 		<< "Options:\n"
-		<< "	-t,		prefix lines with timestamp\n"
 		<< "	-c,		log to console\n"
 		<< "	-f FILE		log to FILE\n"
+		<< "	-t,		prefix lines with timestamp\n"
+		<< "	-n,		prefix lines with hostname\n"
+		<< "	-u,		prefix lines with user name\n"
 		<< "	-h		print this help\n"
 		<< "\n"
-		<< "Option -c and -f are mutually exclusive.\n"
+		<< "Option -c and -f are mutually exclusive, specify one.\n"
 		<< "\n"
 		<< "Denes Matetelki <denes@matetelki.com>\n";
 
@@ -41,13 +45,13 @@ public:
 	int parse(int argc, char* argv[])
 	{
 		int c;
-		while ((c = getopt (argc, argv, "ctf:h")) != -1) {
+		while ((c = getopt (argc, argv, "cf:tnuh")) != -1) {
 			switch (c) {
 				case 'c':
 					m_print_to_console = true;
 					break;
 				case 't':
-					m_print_timestamp = true;
+					m_timestamp = true;
 					break;
 				case 'f':
 					m_logFile = std::string(optarg);
@@ -69,7 +73,9 @@ public:
 	}
 
 	bool printToConsole() const { return m_print_to_console; }
-	bool printTimestamp() const { return m_print_timestamp; }
+	bool printTimestamp() const { return m_timestamp; }
+	bool printHostname() const { return m_hostname; }
+	bool printUsername() const { return m_username; }
 	std::string logFile() const { return m_logFile; }
 
 private:
@@ -77,10 +83,12 @@ private:
 	char** m_argv;
 
 	bool m_print_to_console;
-	bool m_print_timestamp;
 	std::string m_logFile;
+	bool m_timestamp;
+	bool m_hostname;
+	bool m_username;
 };
 
-#define LOG *Logger::getInstance()->getStream()
+// #define LOG *Logger::getInstance()->getStream()
 
 #endif // ARGPARSER_HPP

Logger.hpp

@@ -9,10 +9,29 @@
 class Logger : public Singleton_DCLP<Logger>
 {
 public:
+	class Endl {};
+
 	Logger() : m_os(nullptr), m_print_time_stamp(false) {}
 
 	void setStream(std::ostream* os) { m_os = os; }
-	std::ostream* getStream()
+	std::ostream* getStream() { return m_os; }
+
+	void setPrintTimeStamp(bool b = true) { m_print_time_stamp = b; }
+
+	template <class T>
+	Logger &operator<<(const T &x) {
+		decorate();
+		*m_os << x;
+		return *this;
+	}
+
+	Logger& operator<<(const Logger::Endl& e) {
+		*m_os << std::endl;
+		return *this;
+	}
+
+private:
+	void decorate()
 	{
 		if (m_print_time_stamp) {
 			const std::time_t timenow = std::time(nullptr);
@@ -20,18 +39,14 @@ public:
 			s.pop_back(); // removing trailing \n
 			*m_os << s << " ";
 		}
-
-		return m_os;
 	}
 
-	void setPrintTimeStamp(bool b = true) { m_print_time_stamp = b; }
-
-private:
 	// ostreams are not copyable, hence storing a pointer only
 	std::ostream* m_os;
 	bool m_print_time_stamp;
 };
 
-#define LOG *Logger::getInstance()->getStream()
+#define LOG *Logger::getInstance()
+#define END Logger::Endl();
 
 #endif // LOGGER_HPP

main.cpp

@@ -29,7 +29,7 @@ int main(int argc, char* argv[])
 
 	std::string line;
 	while (std::getline(std::cin, line))
-		LOG  << line << std::endl;
+		LOG  << line << END;
 
 	if (!argparser.printToConsole())
 		logfile.close();