backendmanager_multi.h

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/* Copyright (C) 2007,2009,2017,2018,2019,2020 Olly Betts
 * Copyright (C) 2008 Lemur Consulting Ltd
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#ifndef XAPIAN_INCLUDED_BACKENDMANAGER_MULTI_H
#define XAPIAN_INCLUDED_BACKENDMANAGER_MULTI_H

#include "backendmanager.h"

#include <string>
#include <vector>

#include <xapian/database.h>

class BackendManagerMulti : public BackendManager {
    void operator=(const BackendManagerMulti &);

    BackendManagerMulti(const BackendManagerMulti &);

    std::string last_wdb_path;

    // vector of sub_managers.
    std::vector<BackendManager*> sub_managers;

    std::string cachedir;

    std::string createdb_multi(const std::string& name,
                               const std::vector<std::string>& files);

  protected:
    std::string do_get_database_path(const std::vector<std::string> & files);

  public:
    BackendManagerMulti(const std::string& datadir_,
                        const std::vector<BackendManager*>& sub_manager_);

    Xapian::Database get_remote_database(const std::vector<std::string>& files,
                                         unsigned int timeout);

    Xapian::WritableDatabase get_writable_database(const std::string & name, const std::string & file);

    std::string get_writable_database_path(const std::string & name);

    std::string get_compaction_output_path(const std::string& name);

    std::string get_generated_database_path(const std::string& name);

    Xapian::WritableDatabase get_writable_database_again();

    std::string get_writable_database_path_again();
};

#endif // XAPIAN_INCLUDED_BACKENDMANAGER_MULTI_H