cdrioimpl.h

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// OSB library ********************************************* -*- C++ -*-
/*
  AUTHOR(S): Stephan Broennimann (vb)

  RCS information
   $Name: OSB_060808 $
   $Revision: 1.15 $

  License
   OSB rating and billing library for communication networks
   Copyright (C) 2004, 2005, 2006  OSB systems

   This file may be distributed and/or modify under the terms of the
   GNU General Public License (GPL) as published by the Free Software
   Foundation which is provided in the file LICENSE.GPL included in the
   packaging of this file.

   The file 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.

   Holders of a OSB Commercial License may use this file under the terms
   and conditions of this commercial license.
 */
#ifndef _CDRIOIMPL_H_
#define _CDRIOIMPL_H_

// *********************************************************************
// included header files
// + standard includes
#include <iosfwd>
#include <map>
#include <list>
#include <set>

// + local headers
#include "osbid.h"
#include "cdrio.h"

// *********************************************************************
// class declarations
namespace OSB_LIB {
    class Asn1Writer;
    class Date;
    class BsPage;
}

// *********************************************************************
// namespace extensions
namespace OSB_LIB {

// *********************************************************************
// class definitions
    // class CdrIoImpl
    class CdrIoImpl : public CdrIo {
    public:                             // construction
        CdrIoImpl(const Id<BsPage>& pageId);

    public:                             // interface implementation
        // Documentation from base class.
        std::auto_ptr<CdrIo> clone() const;

        // Documentation from base class.
        const Id<BsPage>& pageId() const;

        // Documentation from base class.
        void read(CdrList& dest);

        // Documentation from base class.
        void prepareWrite();

        // Documentation from base class.
        void write(
            const CdrList&    cdrs,
                  Asn1Writer& writer
        );

        // Documentation from base class.
        void replace(
            const CdrList&    newCdrs,
                  Asn1Writer& writer
        );

        // Documentation from base class.
        bool commitChanges();

        // Documentation from base class.
        bool undoChanges();

        // Documentation from base class.
        bool remove();

    private:
        typedef std::map<Date, CdrList> CdrGroups;
        typedef std::set<std::string> PathList;

    private:
        size_t getCdrFiles(
            const std::string& dirName,
                  PathList&    dest
        );

        size_t getSubDirs(
            const std::string& dirName,
                  PathList&    dest
        );

        void read(
                  CdrList&     dest,
            const std::string& path
        );

        void write(
            const CdrList&    cdrs,
                  Asn1Writer& writer,
                  bool        mkBackup
        );

        std::string pageDir() const;

        std::string mkFilename(long n) const;

        void moveFileAway(const std::string& path);

        void groupCdrsByDate(
                  CdrGroups& dest,
            const CdrList&   src
        );

        FILE* openOutputFile(
            std::string& path,
            bool         mkBackup
        );

        std::string newCdrFile(
            const std::string& dirName,
                  size_t       numFiles
        ) const;


        std::string renameCdrFile(
            const std::string& filePath,
            const std::string& extTo
        );

        void copyFile(
            const std::string& from,
            const std::string& to
        );

        bool removeChangedFiles();

        bool removeChangedFile(const std::string& path);

        bool restoreCdrFiles();

        bool restoreCdrFile(const std::string& path);

    private:
        static const std::string extBak_;
        static const std::string extCdr_;
        static const std::string extRpl_;

    private:
        Id<BsPage> pageId_;
        PathList changedFiles_;
        PathList recoverFiles_;
    };                                  // class CdrIoImpl
}                                       // namespace OSB_LIB
#endif                                  // #ifndef _CDRIOIMPL_H_

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