VectorTemplateComposition.hpp

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/***************************************************************************
  tag: Tinne De Laet 2007  VectorTemplateComposition.hpp
       2007 Ruben Smits
                        VectorTemplateComposition.hpp -  description

 ***************************************************************************
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#ifndef VECTOR_TEMPLATE_COMPOSITION_HPP
#define VECTOR_TEMPLATE_COMPOSITION_HPP

#include "../Property.hpp"
#include "../PropertyBag.hpp"
#include "Types.hpp"
#include "../Logger.hpp"
#include "../internal/DataSources.hpp"
#include <vector>

namespace RTT
{ 
    namespace types {

        template<class T>
        bool composeTemplateProperty(const PropertyBag& bag, T& result)
        {
            TypeInfoRepository::shared_ptr tir = Types();
            if ( tir->type( bag.getType()) == tir->getTypeInfo< T >() ) {
                Property< typename T::value_type>* comp;
                int dimension = bag.size();
                result.resize( dimension );

                // Get values
                int size_correction = 0;
                for (int i = 0; i < dimension ; i++) {
                    base::PropertyBase* element = bag.getItem( i );
                    comp = dynamic_cast< Property< typename T::value_type>* >( element );
                    if ( comp == 0 ) {
                        // detect LEGACY element:
                        if ( element->getName() == "Size" ) {
                            // oops, our result vector will be one smaller.
                            size_correction += 1;
                            continue;
                        }
                        Logger::log() << Logger::Error << "Aborting composition of Property< T > "
                                      << ": Exptected data element "<< i << " to be of type " << internal::DataSourceTypeInfo< typename T::value_type>::getTypeName()
                                      <<" got type " << element->getType()
                                      <<Logger::endl;
                        return false;
                    }
                    result[ i - size_correction ] = comp->get();
                }
                result.resize( dimension - size_correction );
            }
            else {
                Logger::log() << Logger::Error << "Composing Property< T > :"
                              << " type mismatch, got type '"<< bag.getType()
                              << "', expected 'vector<" <<  internal::DataSourceTypeInfo< typename T::value_type>::getTypeName() <<">'."<<Logger::endl;
                return false;
            }
            return true;
        }
    }
}

#endif