PropertyBagVisitor.cpp

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/***************************************************************************
  tag: The SourceWorks  Tue Sep 7 00:55:18 CEST 2010  PropertyBagVisitor.cpp

                        PropertyBagVisitor.cpp -  description
                           -------------------
    begin                : Tue September 07 2010
    copyright            : (C) 2010 The SourceWorks
    email                : peter@thesourceworks.com

 ***************************************************************************
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#include "PropertyBagVisitor.hpp"
#include "../types/PropertyDecomposition.hpp"
#include "../types/Types.hpp"
#include "../Property.hpp"
#include "../PropertyBag.hpp"
#include "../Logger.hpp"

namespace RTT {
    using namespace detail;

    bool PropertyBagVisitor::introspectAndDecompose(PropertyBase* v)
    {
        DataSourceBase::shared_ptr dsb = v->getTypeInfo()->decomposeType( v->getDataSource() );
        // Try conversion first because this is the user's implementation of decomposition:
        if ( dsb ) {
            // check if type returned itself to avoid decomposition:
            if ( dsb == v->getDataSource() )
                return false;
            base::PropertyBase* p = dsb->getTypeInfo()->buildProperty(v->getName(), v->getDescription(), dsb);
            this->introspect( p );
            delete p;
            return true;
        } else {
            // now try generic decomposition, based on getMember():
            Property<PropertyBag> res(v->getName(), v->getDescription() );
            if ( types::propertyDecomposition(v, res.value() ) ) {
                this->introspect( res );
                deletePropertyBag( res.value() );
                return true;
            }
            // Cleanup.
            deletePropertyBag( res.value() );
            // All failed.
            return false;
        }
        return false;
    }

}