VectorComposition.cpp

/***************************************************************************
  tag: Peter Soetens  Mon May 10 19:10:30 CEST 2004  VectorComposition.cxx

                        VectorComposition.cxx -  description
                           -------------------
    begin                : Mon May 10 2004
    copyright            : (C) 2004 Peter Soetens
    email                : peter.soetens@mech.kuleuven.ac.be

 ***************************************************************************
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU General Public                   *
 *   License as published by the Free Software Foundation;                 *
 *   version 2 of the License.                                             *
 *                                                                         *
 *   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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 *   This library is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
 *   Lesser General Public License for more details.                       *
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 *   Foundation, Inc., 59 Temple Place,                                    *
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 ***************************************************************************/


#include "../Property.hpp"
#include "../PropertyBag.hpp"
#include "VectorComposition.hpp"
#include "../Logger.hpp"
#include <ostream>
#include <sstream>

namespace RTT {
    namespace types {
    using namespace detail;

    bool composeProperty(const PropertyBag& bag, std::vector<double>& result)
    {
        if ( bag.getType() == "std::vector<double>" || bag.getType() == "array" ) {
            Property<double>* comp;
            int dimension = bag.size();
            result.resize( dimension );

            // Get values
            int size_correction = 0;
            for (int i = 0; i < dimension ; i++) {
                PropertyBase* element = bag.getItem( i );
                comp = dynamic_cast< Property<double>* >( 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< vector<double> > "
                                  << ": Exptected data element "<< i << " to be of type double"
                                  <<" 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< std::vector<double> > :"
                          << " type mismatch, got type '"<< bag.getType()
                          << "', expected type 'array'."<<Logger::endl;
            return false;
        }
        return true;
    }


}}; // namespace RTT