Program Listing for File IfcLogger.h

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/********************************************************************************
 *                                                                              *
 * This file is part of IfcOpenShell.                                           *
 *                                                                              *
 * IfcOpenShell is free software: you can redistribute it and/or modify         *
 * it under the terms of the Lesser GNU General Public License as published by  *
 * the Free Software Foundation, either version 3.0 of the License, or          *
 * (at your option) any later version.                                          *
 *                                                                              *
 * IfcOpenShell 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                 *
 * Lesser GNU General Public License for more details.                          *
 *                                                                              *
 * You should have received a copy of the Lesser GNU General Public License     *
 * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
 *                                                                              *
 ********************************************************************************/

#ifndef IFCLOGGER_H
#define IFCLOGGER_H

#include "../ifcparse/IfcBaseClass.h"

#include <set>
#include <string>
#include <vector>
#include <sstream>
#include <algorithm>
#include <exception>

#include <boost/optional.hpp>

#include "ifc_parse_api.h"

class IFC_PARSE_API Logger {
public:
    typedef enum { LOG_DEBUG, LOG_NOTICE, LOG_WARNING, LOG_ERROR } Severity;
    typedef enum { FMT_PLAIN, FMT_JSON } Format;
private:

    // To both stream variants need to exist at runtime or should this be a
    // template argument of Logger or controlled using preprocessor directives?
    static std::ostream* log1;
    static std::ostream* log2;

    static std::wostream* wlog1;
    static std::wostream* wlog2;

    static std::stringstream log_stream;

    static Severity verbosity;
    static Format format;
    static boost::optional<IfcUtil::IfcBaseClass*> current_product;
    static Severity max_severity;
public:
    static void SetProduct(boost::optional<IfcUtil::IfcBaseClass*> product);

    static void SetOutput(std::wostream* l1, std::wostream* l2);

    static void SetOutput(std::ostream* l1, std::ostream* l2);

    static void Verbosity(Severity v);
    static Severity Verbosity();
    static Severity MaxSeverity();

    static void OutputFormat(Format f);
    static Format OutputFormat();

    static void Message(Severity type, const std::string& message, const IfcUtil::IfcBaseClass* instance = 0);
    static void Message(Severity type, const std::exception& message, const IfcUtil::IfcBaseClass* instance = 0);

    static void Notice(const std::string& message, const IfcUtil::IfcBaseClass* instance = 0) { Message(LOG_NOTICE, message, instance); }
    static void Warning(const std::string& message, const IfcUtil::IfcBaseClass* instance = 0) { Message(LOG_WARNING, message, instance); }
    static void Error(const std::string& message, const IfcUtil::IfcBaseClass* instance = 0) { Message(LOG_ERROR, message, instance); }

    static void Notice(const std::exception& exception, const IfcUtil::IfcBaseClass* instance = 0) { Message(LOG_NOTICE, exception, instance); }
    static void Warning(const std::exception& exception, const IfcUtil::IfcBaseClass* instance = 0) { Message(LOG_WARNING, exception, instance); }
    static void Error(const std::exception& exception, const IfcUtil::IfcBaseClass* instance = 0) { Message(LOG_ERROR, exception, instance); }

    static void Status(const std::string& message, bool new_line=true);

    static void ProgressBar(int progress);
    static std::string GetLog();
};

#endif