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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 Core::String &message, const Core::String &source) {
if(!(level == LOG_CRITICAL && source.isEmpty())) {// 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 Core::String &message, const Core::String &source) {
if(source.isEmpty())
std::cerr << message << std::endl;
else
std::cerr << message << " from " << source << std::endl;
}
LogManager::MessageLevel LogManager::parseLevel(const String &str) throw (Exception) {
static const String DEBUG_LEVEL("debug");
static const String VERBOSE_LEVEL("verbose");
static const String DEFAULT_LEVEL("default");
static const String WARNING_LEVEL("warning");
static const String ERROR_LEVEL("error");
static const String CRITICAL_LEVEL("critical");
if(str.isEmpty())
return Logger::LOG_DEFAULT;
if(str.matches(DEBUG_LEVEL))
return Logger::LOG_DEBUG;
else if(str.matches(VERBOSE_LEVEL))
return Logger::LOG_VERBOSE;
else if(str.matches(DEFAULT_LEVEL))
return Logger::LOG_DEFAULT;
else if(str.matches(WARNING_LEVEL))
return Logger::LOG_WARNING;
else if(str.matches(ERROR_LEVEL))
return Logger::LOG_ERROR;
else if(str.matches(CRITICAL_LEVEL))
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);
}
void LogManager::configure() {
std::vector<const ConfigEntry*> entries = application->getConfigManager()->getEntries("Log");
for(std::vector<const ConfigEntry*>::iterator entry = entries.begin(); entry != entries.end(); ++entry) {
const std::vector<String> &values = (*entry)->getValues();
if(values.empty() || !values.front().matches("Console"))
continue;
registerLogger(consoleLogger);
bool remote = false;
for(std::vector<String>::const_iterator value = values.begin()+1; value != values.end(); ++value) {
if(value->matches("remote"))
remote = true;
}
String level = (*entry)->get("Level");
if(!level.isEmpty()) {
try {
if(remote)
consoleLogger->setRemoteLevel(parseLevel(level));
else
consoleLogger->setLevel(parseLevel(level));
}
catch(Core::Exception e) {
application->log(Logger::LOG_WARNING, Format("Unknown log level '%1%'.") % level);
}
}
}
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 Core::String &message, const Core::String &source) {
if(level == Logger::LOG_CRITICAL && source.isEmpty())
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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