host_data_source_factory.h

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// Copyright (C) 2015-2024 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
#ifndef HOST_DATA_SOURCE_FACTORY_H
#define HOST_DATA_SOURCE_FACTORY_H
 
#include <database/database_connection.h>
#include <dhcpsrv/base_host_data_source.h>
#include <exceptions/exceptions.h>
 
#include <functional>
#include <string>
#include <vector>
#include <map>
 
namespace isc {
namespace dhcp {
 
class NoHostDataSourceManager : public Exception {
public:
    NoHostDataSourceManager(const char* file, size_t line, const char* what) :
        isc::Exception(file, line, what) {}
};
 
 
class HostDataSourceFactory {
public:
    static void add(HostDataSourceList& sources, const std::string& dbaccess);
 
    static bool del(HostDataSourceList& sources, const std::string& db_type);
 
    static bool del(HostDataSourceList& sources, const std::string& db_type,
                    const std::string& dbaccess, bool if_unusable = true);
 
    typedef std::function<HostDataSourcePtr (const db::DatabaseConnection::ParameterMap&)> Factory;
 
    typedef std::function<std::string ()> DBVersion;
 
    static bool registerFactory(const std::string& db_type,
                                const Factory& factory,
                                bool no_log = false,
                                DBVersion db_version = DBVersion());
 
    static bool deregisterFactory(const std::string& db_type,
                                  bool no_log = false);
 
    static bool registeredFactory(const std::string& db_type);
 
    static void logRegistered();
 
    static std::list<std::string> getDBVersions();
 
private:
    static std::map<std::string, std::pair<Factory, DBVersion>> map_;
};
 
} // end of isc::dhcp namespace
} // end of isc namespace
 
#endif