LoggerFactory.h

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/* ============================================================
 *
 * This file is a part of RSC project
 *
 * Copyright (C) 2010 by Johannes Wienke <jwienke at techfak dot uni-bielefeld dot de>
 * Copyright (C) 2018 Jan Moringen <jmoringe@techfak.uni-bielefeld.de>
 *
 * This file may be licensed under the terms of the
 * GNU Lesser General Public License Version 3 (the ``LGPL''),
 * or (at your option) any later version.
 *
 * Software distributed under the License is distributed
 * on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
 * express or implied. See the LGPL for the specific language
 * governing rights and limitations.
 *
 * You should have received a copy of the LGPL along with this
 * program. If not, go to http://www.gnu.org/licenses/lgpl.html
 * or write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The development of this software was supported by:
 *   CoR-Lab, Research Institute for Cognition and Robotics
 *     Bielefeld University
 *
 * ============================================================ */

#pragma once

#include <boost/thread/recursive_mutex.hpp>

#include "../patterns/Singleton.h"

#include "Logger.h"
#include "LoggerTreeNode.h"
#include "LoggerProxy.h"
#include "LoggingSystem.h"

#include "rsc/rscexports.h"

namespace rsc {

namespace logging {

class RSC_EXPORT LoggerFactory: public patterns::Singleton<LoggerFactory> {
private:
    LoggerFactory();

public:

    friend class patterns::Singleton<LoggerFactory>;

    virtual ~LoggerFactory();

    LoggerPtr getLogger(const std::string& name = "");

    void reconfigure(const Logger::Level& level);

    void reconfigureFromFile(const std::string& fileName);

    void reselectLoggingSystem(const std::string& nameHint = "");

    static const std::string DEFAULT_LOGGING_SYSTEM;

    static const Logger::Level DEFAULT_LEVEL;

    std::string getLoggingSystemName();

    void clearKnownLoggers();

private:

    class ReconfigurationVisitor;
    class ReselectVisitor;

    LoggerProxyPtr createLogger(const LoggerTreeNode::NamePath& path,
            LoggerTreeNodePtr node);

    LoggingSystemPtr loggingSystem;

    boost::recursive_mutex mutex;
    LoggerTreeNodePtr loggerTree;

};

}
}