Test: Logging

Enabled logging in unit tests.
Seperated LogManager into LogManager (singleton stuff) and LogManagerImplementation (actual logging stuff)
Implemented simple FileLogger

review id = 13

src/lib/utility/logging/FileLogger.cpp

@@ -0,0 +1,57 @@
+#include "FileLogger.h"
+
+#include <fstream>
+#include <sstream>
+
+const std::string FileLogger::s_filePath = "data/log/";
+
+FileLogger::FileLogger()
+	: Logger("FileLogger")
+{
+	setupFileName();
+}
+
+FileLogger::~FileLogger()
+{
+}
+
+void FileLogger::logInfo(const LogMessage& message)
+{
+	logMessage("INFO", message);
+}
+
+void FileLogger::logWarning(const LogMessage& message)
+{
+	logMessage("WARNING", message);
+}
+
+void FileLogger::logError(const LogMessage& message)
+{
+	logMessage("ERROR", message);
+}
+
+void FileLogger::setupFileName()
+{
+	time_t time;
+	std::time(&time);
+	tm localTime = *std::localtime(&time);
+
+	std::stringstream filename;
+	filename << "log_";
+	filename << localTime.tm_mon << "-" << localTime.tm_mday << "_";
+	filename << localTime.tm_hour << "-" << localTime.tm_min << "-" << localTime.tm_sec << ".txt";
+
+	m_fileName = filename.str();
+}
+
+void FileLogger::logMessage(const std::string& type, const LogMessage& message)
+{
+	std::ofstream fileStream;
+	fileStream.open(s_filePath + m_fileName, std::ios::app);
+	fileStream
+		<< message.getTimeString("%H:%M:%S") << " | "
+		<< message.getFileName() << ':' << message.line << ' ' << message.functionName << "() | "
+		<< type << ": " << message.message
+		<< std::endl;
+	fileStream.close();
+}