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/*
* LogManager.cpp
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "LogManager.h"
#include "Application.h"
#include "ConfigEntry.h"
#include "ConfigManager.h"
#include <iostream>
namespace Mad {
namespace Core {
void LogManager::ConsoleLogger::logMessage(MessageCategory category, MessageLevel level, boost::posix_time::ptime timestamp, const std::string &message, const std::string &source) {
if(!(level == LOG_CRITICAL && source.empty())) {// Critical messages are printed to cerr directly, so don't print them a second time
boost::lock_guard<boost::mutex> lock(cerrMutex);
logMessageDirect(category, level, timestamp, message, source);
}
}
void LogManager::ConsoleLogger::logMessageDirect(MessageCategory /*category*/, MessageLevel /*level*/, boost::posix_time::ptime /*timestamp*/, const std::string &message, const std::string &source) {
if(source.empty())
std::cerr << message << std::endl;
else
std::cerr << message << " from " << source << std::endl;
}
LogManager::MessageLevel LogManager::parseLevel(const UnicodeString &str) throw (Exception) {
static const UnicodeString DEBUG_LEVEL("debug");
static const UnicodeString VERBOSE_LEVEL("verbose");
static const UnicodeString DEFAULT_LEVEL("default");
static const UnicodeString WARNING_LEVEL("warning");
static const UnicodeString ERROR_LEVEL("error");
static const UnicodeString CRITICAL_LEVEL("critical");
if(str.isEmpty())
return Logger::LOG_DEFAULT;
if(str.caseCompare(DEBUG_LEVEL, 0) == 0)
return Logger::LOG_DEBUG;
else if(str.caseCompare(VERBOSE_LEVEL, 0) == 0)
return Logger::LOG_VERBOSE;
else if(str.caseCompare(DEFAULT_LEVEL, 0) == 0)
return Logger::LOG_DEFAULT;
else if(str.caseCompare(WARNING_LEVEL, 0) == 0)
return Logger::LOG_WARNING;
else if(str.caseCompare(ERROR_LEVEL, 0) == 0)
return Logger::LOG_ERROR;
else if(str.caseCompare(CRITICAL_LEVEL, 0) == 0)
return Logger::LOG_CRITICAL;
else
throw Exception(Exception::INVALID_INPUT);
}
LogManager::LogManager(Application *application0) : application(application0), consoleLogger(new ConsoleLogger), configured(false), running(false) {
application->getConfigManager()->registerConfigurable(this);
}
LogManager::~LogManager() {
application->getConfigManager()->unregisterConfigurable(this);
}
bool LogManager::handleConfigEntry(const ConfigEntry &entry, bool handled) {
if(entry[0].getKey().matches("Log")) {
if(entry[0][0].matches("Console")) {
if(entry[1].isEmpty()) {
registerLogger(consoleLogger);
return true;
}
else if(entry[1].getKey().matches("Level")) {
if(entry[2].isEmpty()) {
try {
if(entry[1][0].matches("remote"))
consoleLogger->setRemoteLevel(parseLevel(entry[1][1]));
else
consoleLogger->setLevel(parseLevel(entry[1][0]));
}
catch(Core::Exception e) {
application->logf(Logger::LOG_WARNING, "Unknown log level '%s'.", entry[1][0].extract().c_str());
}
return true;
}
}
}
else if(entry[1].isEmpty()) {
if(!handled) {
application->logf(Logger::LOG_WARNING, "Unknown logger '%s'.", entry[0][0].extract().c_str());
return true;
}
}
}
return false;
}
void LogManager::configFinished() {
if(loggers.empty())
registerLogger(consoleLogger);
boost::lock_guard<boost::mutex> lock(queueMutex);
configured = true;
queueCond.notify_one();
}
void LogManager::log(MessageCategory category, MessageLevel level, boost::posix_time::ptime timestamp, const std::string &message, const std::string &source) {
if(level == Logger::LOG_CRITICAL && source.empty())
consoleLogger->logMessageDirect(category, level, timestamp, message, source);
boost::lock_guard<boost::mutex> lock(queueMutex);
Message m = {category, level, timestamp, message, source};
messageQueue.push(m);
queueCond.notify_one();
}
void LogManager::loggerThread() {
boost::unique_lock<boost::mutex> lock(queueMutex);
running = true;
while(running) {
while(running && ((messageQueue.empty() && messageQueue.empty()) || !configured))
queueCond.wait(lock);
while(!messageQueue.empty()) {
Message message = messageQueue.front();
messageQueue.pop();
lock.unlock();
{
boost::lock_guard<boost::mutex> loggerLock(loggerMutex);
for(std::set<boost::shared_ptr<Logger> >::iterator logger = loggers.begin(); logger != loggers.end(); ++logger) {
(*logger)->log(message.category, message.level, message.timestamp, message.message, message.source);
}
}
lock.lock();
}
}
}
}
}
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