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QxClone.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://www.qxorm.com/
    00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
    00005 **
    00006 ** This file is part of the QxOrm library
    00007 **
    00008 ** This software is provided 'as-is', without any express or implied
    00009 ** warranty. In no event will the authors be held liable for any
    00010 ** damages arising from the use of this software
    00011 **
    00012 ** Commercial Usage
    00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
    00014 ** accordance with the commercial license agreement provided with the
    00015 ** Software or, alternatively, in accordance with the terms contained in
    00016 ** a written agreement between you and Lionel Marty
    00017 **
    00018 ** GNU General Public License Usage
    00019 ** Alternatively, this file may be used under the terms of the GNU
    00020 ** General Public License version 3.0 as published by the Free Software
    00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
    00022 ** packaging of this file. Please review the following information to
    00023 ** ensure the GNU General Public License version 3.0 requirements will be
    00024 ** met : http://www.gnu.org/copyleft/gpl.html
    00025 **
    00026 ** If you are unsure which license is appropriate for your use, or
    00027 ** if you have questions regarding the use of this file, please contact :
    00028 ** contact@qxorm.com
    00029 **
    00030 ****************************************************************************/
    00031
    00032 #ifndef _QX_CLONE_H_
    00033 #define _QX_CLONE_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <string>
    00047 #include <iostream>
    00048 #include <sstream>
    00049 #include <exception>
    00050
    00051 #ifdef _QX_ENABLE_BOOST_SERIALIZATION
    00052
    00053 #include <boost/archive/archive_exception.hpp>
    00054
    00055 #include <QxSerialize/boost/QxSerializeInclude.h>
    00056 #include <QxSerialize/QxBoostSerializeHelper/QxBoostSerializeRegisterHelperX.h>
    00057 #include <QxSerialize/QxSerializeInvoker.h>
    00058
    00059 #else // _QX_ENABLE_BOOST_SERIALIZATION
    00060
    00061 #include <QxSerialize/QxSerializeQDataStream.h>
    00062 #include <QxSerialize/QDataStream/QxSerializeQDataStream_all_include.h>
    00063
    00064 #endif // _QX_ENABLE_BOOST_SERIALIZATION
    00065
    00066 #define QX_STR_CLONE_SERIALIZATION_ERROR "[QxOrm] qx::clone() serialization error : '%s'"
    00067 #define QX_STR_CLONE_DESERIALIZATION_ERROR "[QxOrm] qx::clone() deserialization error : '%s'"
    00068
    00069 namespace qx {
    00070
    00071 #ifdef _QX_ENABLE_BOOST_SERIALIZATION
    00072
    00077 template <class T>
    00078 T * clone_to_nude_ptr(const T & obj)
    00079 {
    00080    QX_CLONE_STRING_STREAM ioss(std::ios_base::binary | std::ios_base::in | std::ios_base::out);
    00081    QX_CLONE_BINARY_OUTPUT_ARCHIVE oar(ioss, boost::archive::no_header);
    00082    QxBoostSerializeRegisterHelperX::helper(oar);
    00083    bool bSerializeOk = false;
    00084
    00085    try { oar << obj; bSerializeOk = ioss.good(); }
    00086    catch (const boost::archive::archive_exception & e) { qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, e.what()); }
    00087    catch (const std::exception & e) { qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, e.what()); }
    00088    catch (...) { qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, "unknown error"); }
    00089    if (! bSerializeOk) { qAssert(false); return NULL; }
    00090
    00091    T * pClone = new T();
    00092    QX_CLONE_BINARY_INPUT_ARCHIVE iar(ioss, boost::archive::no_header);
    00093    QxBoostSerializeRegisterHelperX::helper(iar);
    00094    bool bDeserializeOk = false;
    00095
    00096    try { iar >> (* pClone); bDeserializeOk = ioss.good(); }
    00097    catch (const boost::archive::archive_exception & e) { qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, e.what()); }
    00098    catch (const std::exception & e) { qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, e.what()); }
    00099    catch (...) { qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, "unknown error"); }
    00100    qAssert(bDeserializeOk);
    00101
    00102    return (bDeserializeOk ? pClone : NULL);
    00103 }
    00104
    00105 #else // _QX_ENABLE_BOOST_SERIALIZATION
    00106
    00111 template <class T>
    00112 T * clone_to_nude_ptr(const T & obj)
    00113 {
    00114    QByteArray baClone = qx::serialization::qt::to_byte_array(obj);
    00115    if (baClone.isEmpty()) { qAssertMsg(false, "[QxOrm] qx::clone_to_nude_ptr", "an error occurred during QDataStream serialization process"); return NULL; }
    00116    T * pClone = new T();
    00117    qx_bool bOk = qx::serialization::qt::from_byte_array((* pClone), baClone);
    00118    return (bOk ? pClone : NULL);
    00119 }
    00120
    00121 #endif // _QX_ENABLE_BOOST_SERIALIZATION
    00122
    00127 template <class T>
    00128 std::shared_ptr<T> clone(const T & obj)
    00129 { T * ptr = qx::clone_to_nude_ptr<T>(obj); return std::shared_ptr<T>(ptr); }
    00130
    00131 #ifdef _QX_ENABLE_BOOST
    00132
    00137 template <class T>
    00138 boost::shared_ptr<T> clone_to_boost_shared_ptr(const T & obj)
    00139 { T * ptr = qx::clone_to_nude_ptr<T>(obj); return boost::shared_ptr<T>(ptr); }
    00140
    00141 #endif // _QX_ENABLE_BOOST
    00142
    00147 template <class T>
    00148 QSharedPointer<T> clone_to_qt_shared_ptr(const T & obj)
    00149 { T * ptr = qx::clone_to_nude_ptr<T>(obj); return QSharedPointer<T>(ptr); }
    00150
    00155 template <class T>
    00156 std::shared_ptr<T> clone_to_std_shared_ptr(const T & obj)
    00157 { T * ptr = qx::clone_to_nude_ptr<T>(obj); return std::shared_ptr<T>(ptr); }
    00158
    00159 } // namespace qx
    00160
    00161 #endif // _QX_CLONE_H_