configuration.hpp

/*---------------------------------------------------------------------------*\
 *
 *  bitpit
 *
 *  Copyright (C) 2015-2021 OPTIMAD engineering Srl
 *
 *  -------------------------------------------------------------------------
 *  License
 *  This file is part of bitpit.
 *
 *  bitpit is free software: you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License v3 (LGPL)
 *  as published by the Free Software Foundation.
 *
 *  bitpit 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 bitpit. If not, see <http://www.gnu.org/licenses/>.
 *
\*---------------------------------------------------------------------------*/
#ifndef __BITPIT_CONFIGURATION_HPP__
#define __BITPIT_CONFIGURATION_HPP__
 
#include <memory>
#include <string>
 
#include "bitpit_common.hpp"
 
#include "configuration_common.hpp"
#include "configuration_config.hpp"
 
namespace bitpit {
 
// Configuration file parser
class ConfigParser : public Config
{
 
public:
    ConfigParser(const std::string &rootName);
    ConfigParser(const std::string &rootName, bool multiSections);
    ConfigParser(const std::string &rootName, int version);
    ConfigParser(const std::string &rootName, int version, bool multiSections);
 
    void reset(const std::string &rootName);
    void reset(const std::string &rootName, int version);
    void reset(const std::string &rootName, int version, bool multiSections);
 
    void read(const std::string &filename, bool append = true);
    void read(config::SourceFormat format, const std::string &content, bool append = true);
    void write(const std::string &filename) const;
    void write(config::SourceFormat format, std::string *content) const;
 
private:
    BITPIT_PUBLIC_API static const int VERSION_UNDEFINED;
 
    std::string m_rootName;
 
    bool m_checkVersion;
    int m_version;
 
};
 
// Global configuration file parser
class GlobalConfigParser : public ConfigParser
{
 
public:
    static GlobalConfigParser & parser();
 
private:
    static const std::string DEFAULT_ROOT_NAME;
    static const int DEFAULT_VERSION;
 
    static std::unique_ptr<GlobalConfigParser> m_parser;
 
    GlobalConfigParser();
    GlobalConfigParser(const std::string &rootName, int version);
    GlobalConfigParser(const std::string &rootName, bool multiSections);
    GlobalConfigParser(const std::string &rootName, int version, bool multiSections);
 
    GlobalConfigParser(GlobalConfigParser const&) = delete;
    GlobalConfigParser& operator=(GlobalConfigParser const&) = delete;
 
};
 
 
namespace config {
 
    extern BITPIT_PUBLIC_API GlobalConfigParser & root;
 
    void reset();
    void reset(const std::string &rootName);
    void reset(const std::string &rootName, int version);
    void reset(const std::string &rootName, int version, bool multiSections);
 
    void read(const std::string &filename, bool append = true);
    void read(config::SourceFormat format, const std::string &content, bool append = true);
    void write(const std::string &filename);
    void write(config::SourceFormat format, std::string *content);
 
};
 
}
 
#endif