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/*
* The Mana Server
* Copyright (C) 2004 The Mana World Development Team
*
* This file is part of The Mana Server.
*
* The Mana Server is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* The Mana Server is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with The Mana Server. If not, see <http://www.gnu.org/licenses/>.
*/
#include "logger.h"
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#ifdef WIN32
#include <windows.h>
#endif
namespace utils
{
static std::ofstream mLogFile; /**< Log file. */
bool Logger::mHasTimestamp = true; /**< Timestamp flag. */
bool Logger::mTeeMode = false; /**< Tee mode flag. */
Logger::Level Logger::mVerbosity = Logger::INFO; /**< Verbosity level. */
/**
* Gets the current time.
*
* @return the current time as string.
*/
static std::string getCurrentTime()
{
time_t now;
tm local;
// get current time_t value
time(&now);
// convert time_t to tm struct to break the time into individual
// constituents
local = *(localtime(&now));
// stringify the time, the format is: [hh:mm:ss]
using namespace std;
ostringstream os;
os << "[" << setw(2) << setfill('0') << local.tm_hour
<< ":" << setw(2) << setfill('0') << local.tm_min
<< ":" << setw(2) << setfill('0') << local.tm_sec
<< "]";
return os.str();
}
void Logger::output(std::ostream &os, const std::string &msg, const char *prefix)
{
if (mHasTimestamp)
{
os << getCurrentTime() << ' ';
}
if (prefix)
{
os << prefix << ' ';
}
os << msg << std::endl;
}
void Logger::setLogFile(const std::string &logFile)
{
// Close the current log file.
if (mLogFile.is_open())
{
mLogFile.close();
}
// Open the file for output and remove the former file contents.
mLogFile.open(logFile.c_str(), std::ios::trunc);
if (!mLogFile.is_open())
{
throw std::ios::failure("unable to open " + logFile + "for writing");
}
else
{
// by default the streams do not throw any exception
// let std::ios::failbit and std::ios::badbit throw exceptions.
mLogFile.exceptions(std::ios::failbit | std::ios::badbit);
}
}
void Logger::output(const std::string &msg, Level atVerbosity)
{
static const char *prefixes[] =
{
"[FTL]",
"[ERR]",
"[WRN]",
"[INF]",
"[DBG]"
};
if (mVerbosity >= atVerbosity)
{
bool open = mLogFile.is_open();
if (open)
{
output(mLogFile, msg, prefixes[atVerbosity]);
}
if (!open || mTeeMode)
{
output(atVerbosity <= WARN ? std::cerr : std::cout,
msg, prefixes[atVerbosity]);
}
}
}
} // namespace utils
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