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include/QxSerialize/QxClone.h
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include/QxSerialize/QxClone.h
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/****************************************************************************
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**
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** https://www.qxorm.com/
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** Copyright (C) 2013 XDL Team (ic-east.com)
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**
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** This file is part of the QxOrm library
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**
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** This software is provided 'as-is', without any express or implied
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** warranty. In no event will the authors be held liable for any
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** damages arising from the use of this software
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**
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** Commercial Usage
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** Licensees holding valid commercial QxOrm licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and XDL Team
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file 'license.gpl3.txt' included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met : http://www.gnu.org/copyleft/gpl.html
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**
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** If you are unsure which license is appropriate for your use, or
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** if you have questions regarding the use of this file, please contact :
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** ic-east.com
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**
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****************************************************************************/
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#ifndef _QX_CLONE_H_
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#define _QX_CLONE_H_
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#ifdef _MSC_VER
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#pragma once
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#endif
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/*!
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* \file QxClone.h
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* \author XDL Team
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* \ingroup QxSerialize
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* \brief Clone all classes registered into QxOrm context using QxOrm library serialization engine
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*/
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#include <string>
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#include <iostream>
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#include <sstream>
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#include <exception>
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#ifdef _QX_ENABLE_BOOST_SERIALIZATION
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#include <boost/archive/archive_exception.hpp>
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#include <QxSerialize/boost/QxSerializeInclude.h>
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#include <QxSerialize/QxBoostSerializeHelper/QxBoostSerializeRegisterHelperX.h>
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#include <QxSerialize/QxSerializeInvoker.h>
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#else // _QX_ENABLE_BOOST_SERIALIZATION
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#include <QxSerialize/QxSerializeQDataStream.h>
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#include <QxSerialize/QDataStream/QxSerializeQDataStream_all_include.h>
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#endif // _QX_ENABLE_BOOST_SERIALIZATION
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#define QX_STR_CLONE_SERIALIZATION_ERROR "[QxOrm] qx::clone() serialization error : '%s'"
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#define QX_STR_CLONE_DESERIALIZATION_ERROR "[QxOrm] qx::clone() deserialization error : '%s'"
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namespace qx
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{
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#ifdef _QX_ENABLE_BOOST_SERIALIZATION
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/*!
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* \ingroup QxSerialize
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* \brief qx::clone_to_nude_ptr(const T & obj) : return a nude pointer (be careful with memory leak) of a new instance of type T cloned from obj
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*/
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template <class T>
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T *clone_to_nude_ptr(const T &obj)
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{
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QX_CLONE_STRING_STREAM ioss(std::ios_base::binary | std::ios_base::in | std::ios_base::out);
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QX_CLONE_BINARY_OUTPUT_ARCHIVE oar(ioss, boost::archive::no_header);
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QxBoostSerializeRegisterHelperX::helper(oar);
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bool bSerializeOk = false;
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try
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{
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oar << obj;
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bSerializeOk = ioss.good();
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}
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catch (const boost::archive::archive_exception &e)
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{
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qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, e.what());
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}
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catch (const std::exception &e)
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{
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qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, e.what());
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}
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catch (...)
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{
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qDebug(QX_STR_CLONE_SERIALIZATION_ERROR, "unknown error");
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}
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if (!bSerializeOk)
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{
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qAssert(false);
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return NULL;
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}
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T *pClone = new T();
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QX_CLONE_BINARY_INPUT_ARCHIVE iar(ioss, boost::archive::no_header);
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QxBoostSerializeRegisterHelperX::helper(iar);
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bool bDeserializeOk = false;
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try
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{
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iar >> (*pClone);
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bDeserializeOk = ioss.good();
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}
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catch (const boost::archive::archive_exception &e)
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{
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qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, e.what());
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}
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catch (const std::exception &e)
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{
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qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, e.what());
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}
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catch (...)
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{
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qDebug(QX_STR_CLONE_DESERIALIZATION_ERROR, "unknown error");
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}
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qAssert(bDeserializeOk);
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return (bDeserializeOk ? pClone : NULL);
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}
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#else // _QX_ENABLE_BOOST_SERIALIZATION
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/*!
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* \ingroup QxSerialize
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* \brief qx::clone_to_nude_ptr(const T & obj) : return a nude pointer (be careful with memory leak) of a new instance of type T cloned from obj (this is a limited clone version which uses Qt QDataStream engine compared to boost::serialization engine)
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*/
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template <class T>
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T *clone_to_nude_ptr(const T &obj)
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{
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QByteArray baClone = qx::serialization::qt::to_byte_array(obj);
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if (baClone.isEmpty())
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{
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qAssertMsg(false, "[QxOrm] qx::clone_to_nude_ptr", "an error occurred during QDataStream serialization process");
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return NULL;
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}
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T *pClone = new T();
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qx_bool bOk = qx::serialization::qt::from_byte_array((*pClone), baClone);
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return (bOk ? pClone : NULL);
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}
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#endif // _QX_ENABLE_BOOST_SERIALIZATION
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/*!
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* \ingroup QxSerialize
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* \brief qx::clone(const T & obj) : return a boost smart-pointer (std::shared_ptr<T>) of a new instance of type T cloned from obj
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*/
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template <class T>
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std::shared_ptr<T> clone(const T &obj)
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{
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T *ptr = qx::clone_to_nude_ptr<T>(obj);
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return std::shared_ptr<T>(ptr);
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}
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#ifdef _QX_ENABLE_BOOST
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/*!
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* \ingroup QxSerialize
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* \brief qx::clone_to_boost_shared_ptr(const T & obj) : return a boost smart-pointer (boost::shared_ptr<T>) of a new instance of type T cloned from obj
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*/
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template <class T>
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boost::shared_ptr<T> clone_to_boost_shared_ptr(const T &obj)
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{
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T *ptr = qx::clone_to_nude_ptr<T>(obj);
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return boost::shared_ptr<T>(ptr);
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}
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#endif // _QX_ENABLE_BOOST
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/*!
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* \ingroup QxSerialize
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* \brief qx::clone_to_qt_shared_ptr(const T & obj) : return a Qt smart-pointer (QSharedPointer<T>) of a new instance of type T cloned from obj
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*/
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template <class T>
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QSharedPointer<T> clone_to_qt_shared_ptr(const T &obj)
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{
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T *ptr = qx::clone_to_nude_ptr<T>(obj);
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return QSharedPointer<T>(ptr);
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}
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/*!
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* \ingroup QxSerialize
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* \brief qx::clone_to_std_shared_ptr(const T & obj) : return a C++11 std smart-pointer (std::shared_ptr<T>) of a new instance of type T cloned from obj
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*/
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template <class T>
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std::shared_ptr<T> clone_to_std_shared_ptr(const T &obj)
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{
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T *ptr = qx::clone_to_nude_ptr<T>(obj);
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return std::shared_ptr<T>(ptr);
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}
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} // namespace qx
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#endif // _QX_CLONE_H_
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