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QxClone.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://www.qxorm.com/
    00004 ** http://sourceforge.net/projects/qxorm/
    00005 ** Original file by Lionel Marty
    00006 **
    00007 ** This file is part of the QxOrm library
    00008 **
    00009 ** This software is provided 'as-is', without any express or implied
    00010 ** warranty. In no event will the authors be held liable for any
    00011 ** damages arising from the use of this software.
    00012 **
    00013 ** GNU Lesser General Public License Usage
    00014 ** This file must be used under the terms of the GNU Lesser
    00015 ** General Public License version 2.1 as published by the Free Software
    00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the
    00017 ** packaging of this file.  Please review the following information to
    00018 ** ensure the GNU Lesser General Public License version 2.1 requirements
    00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
    00020 **
    00021 ** If you have questions regarding the use of this file, please contact :
    00022 ** contact@qxorm.com
    00023 **
    00024 ****************************************************************************/
    00025
    00026 #ifndef _QX_CLONE_H_
    00027 #define _QX_CLONE_H_
    00028
    00029 #ifdef _MSC_VER
    00030 #pragma once
    00031 #endif
    00032
    00040 #include <string>
    00041 #include <iostream>
    00042 #include <sstream>
    00043 #include <exception>
    00044
    00045 #include <boost/archive/archive_exception.hpp>
    00046
    00047 #include <QxSerialize/boost/QxSerializeInclude.h>
    00048 #include <QxSerialize/QxBoostSerializeHelper/QxBoostSerializeRegisterHelperX.h>
    00049 #include <QxSerialize/QxSerializeInvoker.h>
    00050
    00051 #define QX_STR_CLONE_SERIALIZATION_ERROR "[QxOrm] qx::clone() serialization error : '%s'"
    00052 #define QX_STR_CLONE_DESERIALIZATION_ERROR "[QxOrm] qx::clone() deserialization error : '%s'"
    00053
    00054 namespace qx {
    00055
    00060 template <class T>
    00061 T * clone_to_nude_ptr(const T & obj)
    00062 {
    00063    QX_CLONE_STRING_STREAM ioss(std::ios_base::binary | std::ios_base::in | std::ios_base::out);
    00064    QX_CLONE_BINARY_OUTPUT_ARCHIVE oar(ioss, boost::archive::no_header);
    00065    QxBoostSerializeRegisterHelperX::helper(oar);
    00066    bool bSerializeOk = false;
    00067
    00068    try { oar << obj; bSerializeOk = ioss.good(); }
    00069    catch (const boost::archive::archive_exception & e) { qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, e.what()); }
    00070    catch (const std::exception & e) { qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, e.what()); }
    00071    catch (...) { qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, "unknown error"); }
    00072    if (! bSerializeOk) { qAssert(false); return NULL; }
    00073
    00074    T * pClone = new T();
    00075    QX_CLONE_BINARY_INPUT_ARCHIVE iar(ioss, boost::archive::no_header);
    00076    QxBoostSerializeRegisterHelperX::helper(iar);
    00077    bool bDeserializeOk = false;
    00078
    00079    try { iar >> (* pClone); bDeserializeOk = ioss.good(); }
    00080    catch (const boost::archive::archive_exception & e) { qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, e.what()); }
    00081    catch (const std::exception & e) { qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, e.what()); }
    00082    catch (...) { qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, "unknown error"); }
    00083    qAssert(bDeserializeOk);
    00084
    00085    return (bDeserializeOk ? pClone : NULL);
    00086 }
    00087
    00092 template <class T>
    00093 boost::shared_ptr<T> clone(const T & obj)
    00094 { T * ptr = qx::clone_to_nude_ptr<T>(obj); return boost::shared_ptr<T>(ptr); }
    00095
    00100 template <class T>
    00101 QSharedPointer<T> clone_to_qt_shared_ptr(const T & obj)
    00102 { T * ptr = qx::clone_to_nude_ptr<T>(obj); return QSharedPointer<T>(ptr); }
    00103
    00104 } // namespace qx
    00105
    00106 #endif // _QX_CLONE_H_

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