rtt: DataSourceGenerator.hpp Source File

00001 /***************************************************************************
00002   tag: Peter Soetens  Wed Jan 18 14:11:40 CET 2006  DataSourceGenerator.hpp
00003 
00004                         DataSourceGenerator.hpp -  description
00005                            -------------------
00006     begin                : Wed January 18 2006
00007     copyright            : (C) 2006 Peter Soetens
00008     email                : peter.soetens@mech.kuleuven.be
00009 
00010  ***************************************************************************
00011  *   This library is free software; you can redistribute it and/or         *
00012  *   modify it under the terms of the GNU General Public                   *
00013  *   License as published by the Free Software Foundation;                 *
00014  *   version 2 of the License.                                             *
00015  *                                                                         *
00016  *   As a special exception, you may use this file as part of a free       *
00017  *   software library without restriction.  Specifically, if other files   *
00018  *   instantiate templates or use macros or inline functions from this     *
00019  *   file, or you compile this file and link it with other files to        *
00020  *   produce an executable, this file does not by itself cause the         *
00021  *   resulting executable to be covered by the GNU General Public          *
00022  *   License.  This exception does not however invalidate any other        *
00023  *   reasons why the executable file might be covered by the GNU General   *
00024  *   Public License.                                                       *
00025  *                                                                         *
00026  *   This library is distributed in the hope that it will be useful,       *
00027  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00028  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00029  *   Lesser General Public License for more details.                       *
00030  *                                                                         *
00031  *   You should have received a copy of the GNU General Public             *
00032  *   License along with this library; if not, write to the Free Software   *
00033  *   Foundation, Inc., 59 Temple Place,                                    *
00034  *   Suite 330, Boston, MA  02111-1307  USA                                *
00035  *                                                                         *
00036  ***************************************************************************/
00037 
00038 
00039 #ifndef ORO_EXECUTION_DATASOURCE_GENERATOR_HPP
00040 #define ORO_EXECUTION_DATASOURCE_GENERATOR_HPP
00041 
00042 #include "DataSources.hpp"
00043 #include <boost/utility/enable_if.hpp>
00044 #include <boost/ref.hpp>
00045 
00046 namespace RTT
00047 {
00048     namespace internal
00049     {
00050         template<class T, class Enable = void >
00051         struct DSWrap {
00052             base::DataSourceBase::shared_ptr operator()(T t) { return new ConstantDataSource<T>( t );}
00053         }; // normal type
00054 
00055         template<class T>
00056         struct DSWrap<T, typename boost::enable_if< boost::is_base_of<base::DataSourceBase, typename boost::remove_pointer<T>::type > >::type > {
00057             base::DataSourceBase::shared_ptr operator()(T t) { return t; }
00058         }; // datasource type
00059 
00060         template<class T>
00061         struct DSWrap<T, typename boost::enable_if< boost::is_reference<T> >::type > {
00062             base::DataSourceBase::shared_ptr operator()(T t) { return new ReferenceDataSource< typename boost::remove_reference<T>::type >( t ); }
00063         }; // reference type
00064 
00065         template<class T>
00066         struct DSWrap<T, typename boost::enable_if< boost::is_reference_wrapper<T> >::type > {
00067             typedef typename boost::unwrap_reference<T>::type RT;
00068             base::DataSourceBase::shared_ptr operator()(T t) { return new ReferenceDataSource< typename boost::remove_reference<RT>::type >( t ); }
00069         }; // reference type
00070 
00071         template<class T>
00072         struct DSWrap<boost::intrusive_ptr<T>,  typename boost::enable_if< boost::is_base_of<base::DataSourceBase, typename boost::remove_pointer<T>::type > >::type >
00073         : public DSWrap<T> {
00074         }; // datasource shared_ptr type
00075 
00076         using boost::ref;
00077 
00093     struct GenerateDataSource
00094     {
00095         template<class A1>
00096         std::vector<base::DataSourceBase::shared_ptr> operator()(A1 a1)
00097         {
00098             std::vector<base::DataSourceBase::shared_ptr> res;
00099             res.push_back( DSWrap<A1>()(a1));
00100             return res;
00101         }
00102 
00103         template<class A1, class A2>
00104         std::vector<base::DataSourceBase::shared_ptr> operator()(A1 a1, A2 a2 )
00105         {
00106             std::vector<base::DataSourceBase::shared_ptr> res = operator()(a1);
00107             res.push_back( DSWrap<A2>()(a2));
00108             return res;
00109         }
00110 
00111         template<class A1, class A2, class A3>
00112         std::vector<base::DataSourceBase::shared_ptr> operator()(A1 a1, A2 a2, A3 a3 )
00113         {
00114             std::vector<base::DataSourceBase::shared_ptr> res = operator()(a1,a2);
00115             res.push_back( DSWrap<A3>()(a3));
00116             return res;
00117         }
00118 
00119         template<class A1, class A2, class A3, class A4>
00120         std::vector<base::DataSourceBase::shared_ptr> operator()(A1 a1, A2 a2, A3 a3, A4 a4 )
00121         {
00122             std::vector<base::DataSourceBase::shared_ptr> res = operator()(a1,a2,a3);
00123             res.push_back( DSWrap<A4>()(a4));
00124             return res;
00125         }
00126 
00127         template<class A1, class A2, class A3, class A4, class A5, class A6>
00128         std::vector<base::DataSourceBase::shared_ptr> operator()(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6 )
00129         {
00130             std::vector<base::DataSourceBase::shared_ptr> res = operator()(a1,a2,a3,a4,a5);
00131             res.push_back( DSWrap<A6>()(a6));
00132             return res;
00133         }
00134 
00135         template<class A1, class A2, class A3, class A4, class A5, class A6, class A7>
00136         std::vector<base::DataSourceBase::shared_ptr> operator()(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5, A6 a6, A7 a7 )
00137         {
00138             std::vector<base::DataSourceBase::shared_ptr> res = operator()(a1,a2,a3,a4,a5,a6);
00139             res.push_back( DSWrap<A7>()(a7));
00140             return res;
00141         }
00142 
00143         template<class A1, class A2, class A3, class A4, class A5>
00144         std::vector<base::DataSourceBase::shared_ptr> operator()(A1 a1, A2 a2, A3 a3, A4 a4, A5 a5 )
00145         {
00146             std::vector<base::DataSourceBase::shared_ptr> res = operator()(a1,a2,a3,a4);
00147             res.push_back( DSWrap<A5>()(a5));
00148             return res;
00149         }
00150     };
00151 }}
00152 
00153 #endif