TypeInfoName.hpp

/***************************************************************************
  tag: Peter Soetens  Mon Jun 26 13:25:56 CEST 2006  TypeInfoName.hpp

                        TypeInfoName.hpp -  description
                           -------------------
    begin                : Mon June 26 2006
    copyright            : (C) 2006 Peter Soetens
    email                : peter.soetens@fmtc.be

 ***************************************************************************
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU General Public                   *
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 *   version 2 of the License.                                             *
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 *   As a special exception, you may use this file as part of a free       *
 *   software library without restriction.  Specifically, if other files   *
 *   instantiate templates or use macros or inline functions from this     *
 *   file, or you compile this file and link it with other files to        *
 *   produce an executable, this file does not by itself cause the         *
 *   resulting executable to be covered by the GNU General Public          *
 *   License.  This exception does not however invalidate any other        *
 *   reasons why the executable file might be covered by the GNU General   *
 *   Public License.                                                       *
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 ***************************************************************************/


#ifndef ORO_TYPEINFO_NAME_HPP
#define ORO_TYPEINFO_NAME_HPP

#include "Types.hpp"
#include "DataSourceTypeInfo.hpp"
#include "Logger.hpp"
#include "rtt-config.h"

namespace RTT
{
    class RTT_API EmptyTypeInfo
        : public TypeInfo
    {
        const std::string tname;
    public:
        EmptyTypeInfo(std::string name)
            : tname(name)
        {
        }

        using TypeInfo::buildConstant;
        using TypeInfo::buildVariable;

        AttributeBase* buildConstant(std::string name,DataSourceBase::shared_ptr dsb) const
        {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not build Constant of "<<tname<<"."<<Logger::endl;
            return 0;
        }

        AttributeBase* buildVariable(std::string name) const
        {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not build Variable of "<<tname<<"."<<Logger::endl;
            return 0;
        }

        AttributeBase* buildAttribute(std::string name, DataSourceBase::shared_ptr in) const
        {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not build Attribute of "<<tname<<"."<<Logger::endl;
            return 0;
        }

        AttributeBase* buildAlias(std::string name, DataSourceBase::shared_ptr in ) const
        {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not build Alias of "<<tname<<"."<<Logger::endl;
            return 0;
        }

        virtual const std::string& getTypeName() const { return tname; }

        virtual PropertyBase* buildProperty(const std::string& name, const std::string& desc, DataSourceBase::shared_ptr source = 0) const {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not build Property of "<<tname<<"."<<Logger::endl;
            return 0;
        }

        virtual DataSourceBase::shared_ptr buildValue() const {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not build ValueDataSource of "<<tname<<"."<<Logger::endl;
            return 0;
        }

        DataSourceBase::shared_ptr construct(const std::vector<DataSourceBase::shared_ptr>& ) const {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not construct value of "<<tname<<"."<<Logger::endl;
            return DataSourceBase::shared_ptr();
        }


        virtual std::ostream& write( std::ostream& os, DataSourceBase::shared_ptr in ) const {
            Logger::In loc("TypeInfoName");
#ifdef OS_HAVE_STREAMS
                std::string output = std::string("(")+ in->getTypeName() +")";
                os << output;
#endif
            return os;
        }

        virtual std::istream& read( std::istream& is, DataSourceBase::shared_ptr out ) const {
            Logger::In loc("TypeInfoName");
            return is;
        }

        virtual bool decomposeType( DataSourceBase::shared_ptr source, PropertyBag& targetbag ) const {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not decompose "<<tname<<"."<<Logger::endl;
            return false;
        }

        virtual bool composeType( DataSourceBase::shared_ptr source, DataSourceBase::shared_ptr result) const {
            Logger::In loc("TypeInfoName");
            Logger::log() << Logger::Error << "Can not compose "<<tname<<"."<<Logger::endl;
            return false;
        }
        
        virtual std::string getTypeIdName() const { return ""; }

    };

    template<typename T>
    struct RTT_API TypeInfoName
        : public EmptyTypeInfo
    {
        TypeInfoName(std::string name)
            : EmptyTypeInfo(name)
        {
            Logger::In in("TypeInfoName");
            // Install the type info object for T.
            if ( detail::DataSourceTypeInfo<T>::value_type_info::TypeInfoObject != 0) {
                Logger::log() << Logger::Warning << "Overriding TypeInfo for '"
                              << detail::DataSourceTypeInfo<T>::value_type_info::TypeInfoObject->getTypeName()
                              << "'." << Logger::endl;
            }
            detail::DataSourceTypeInfo<T>::value_type_info::TypeInfoObject = this;
        }
    };

}

#endif