Remote SOF - An OSGI-like modularization framework for C++ supporting distributed software modules

#ifndef LOGGER_IMPL_H
#define LOGGER_IMPL_H

#include <string>
#include <vector>

#include "Logger.h"

namespace sof { namespace util { namespace logging {

using namespace std;

/**
 * The <code>LoggerImpl</code> class implements the
 * <code>Logger</code> interface and is reponsible for
 * printing the log messages to the console.
 *
 * @author magr74
 */
class LoggerImpl : public Logger
{
	private:

		/**
		 * The name of the log channel.
		 */
		string logCh;

		/**
		 * Caches the possible log levels.
		 */
		string levels[4];

		/**
		 * The current log level.
		 */
		unsigned int level;

		/** 
		 * Helper method for printing the log messages.
		 * 
		 * @param messageParts
		 *				A vector containing all string parts of the log message.
		 *
		 * @param level
		 *				The log level of the log message which was set by the user.		
		 */
		void logMessage( const vector<string>& messageParts, LogLevel level );
		
		/** 
		 * Helper method for printing the log messages.
		 * 
		 * @param msg
		 *				The message text.
		 *
		 * @param messageParts
		 *				A vector containing all integer parameters of the log message.
		 *
		 * @param level
		 *				The log level of the log message which was set by the user.		
		 */
		void logMessage( const string& msg, const vector<int>& messageParts, LogLevel level );
		
		/** 
		 * Helper method for printing the log messages.
		 * 
		 * @param msg
		 *				The message text.
		 *
		 * @param messageParts
		 *				A vector containing all boolean parameters of the log message.
		 *
		 * @param level
		 *				The log level of the log message which was set by the user.		
		 */
		void logMessage( const string& msg, const vector<bool>& messageParts, LogLevel level );

		/**
		 * Caches the last printed log message.
		 */
		string lastLogMessage;

	public:

		/**
		 * Creates instances of class <code>LoggerImpl</code>.
		 *
		 * @param channel
		 *				The name of the log channel.
		 */
		LoggerImpl( const string& channel );

		/**
		 * Logs a message containing three string parameters.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first string parameter.
		 *
		 * @param param2
		 *				The second string parameter.
		 *
		 * @param param3
		 *				The third string parameter.
		 */
		void log( LogLevel level, const string& message, const string& param1,
				const string& param2, const string& param3 );

		/**
		 * Logs a message containing two string parameters.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first string parameter.
		 *
		 * @param param2
		 *				The second string parameter.
		 */
		void log( LogLevel channel, const string& message, const string& param1,
				const string& param2 );

		/**
		 * Logs a message containing one string parameter.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first string parameter.
		 */
		void log( LogLevel level, const string& message, const string& param1 );

		/**
		 * Logs a message containing three integer parameters.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first integer parameter.
		 *
		 * @param param2
		 *				The second integer parameter.
		 *
		 * @param param3
		 *				The third integer parameter.
		 */
		void log( LogLevel level, const string& message, int param1,
				int param2, int param3 );

		/**
		 * Logs a message containing two integer parameters.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first integer parameter.
		 *
		 * @param param2
		 *				The second integer parameter.
		 */
		void log( LogLevel level, const string& message, int param1,
				int param2 );

		/**
		 * Logs a message containing one integer parameter.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first integer parameter.
		 */
		void log( LogLevel level, const string& message, int param1 );

		/**
		 * Logs a message without any parameters.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 */
		void log( LogLevel level, const string& message );

		/**
		 * Logs a message containing one boolean parameter.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first boolean parameter.
		 */
		void log( LogLevel level, const string& message, bool param1 );

		/**
		 * Logs a message containing two boolean parameters.
		 *
		 * @param level
		 *				The log level.
		 *
		 * @param message
		 *				The log message.
		 *
		 * @param param1
		 *				The first boolean parameter.
		 *
		 * @param param2
		 *				The second boolean parameter.
		 */
		void log( LogLevel level, const string& message, bool param1, bool param2 );

		/**
		 * Sets the log level. The logger checks for each 
		 * <code>log</code> call whether the log level of the
		 * log call matches the system wide log level set
		 * by this method. If it matches the log message is printed
		 * to the console, otherwise the log message is not printed.
		 *
		 * @param level
		 *			The log level (NOLOG, ERROR_, TRACE, DEBUG.
		 */
		void setLogLevel( Logger::LogLevel level );


};

}}}
#endif