Orocos Real-Time Toolkit  2.5.0
PropertyBagVisitor.cpp
00001 /***************************************************************************
00002   tag: The SourceWorks  Tue Sep 7 00:55:18 CEST 2010  PropertyBagVisitor.cpp
00003 
00004                         PropertyBagVisitor.cpp -  description
00005                            -------------------
00006     begin                : Tue September 07 2010
00007     copyright            : (C) 2010 The SourceWorks
00008     email                : peter@thesourceworks.com
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       *
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00018  *   instantiate templates or use macros or inline functions from this     *
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00023  *   reasons why the executable file might be covered by the GNU General   *
00024  *   Public License.                                                       *
00025  *                                                                         *
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00028  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
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00030  *                                                                         *
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00035  *                                                                         *
00036  ***************************************************************************/
00037 
00038 
00039 #include "PropertyBagVisitor.hpp"
00040 #include "../types/PropertyDecomposition.hpp"
00041 #include "../types/Types.hpp"
00042 #include "../Property.hpp"
00043 #include "../PropertyBag.hpp"
00044 #include "../Logger.hpp"
00045 
00046 namespace RTT {
00047     using namespace detail;
00048 
00049     bool PropertyBagVisitor::introspectAndDecompose(PropertyBase* v)
00050     {
00051         DataSourceBase::shared_ptr dsb = v->getTypeInfo()->decomposeType( v->getDataSource() );
00052         // Try conversion first because this is the user's implementation of decomposition:
00053         if ( dsb ) {
00054             // check if type returned itself to avoid decomposition:
00055             if ( dsb == v->getDataSource() )
00056                 return false;
00057             base::PropertyBase* p = dsb->getTypeInfo()->buildProperty(v->getName(), v->getDescription(), dsb);
00058             this->introspect( p );
00059             delete p;
00060             return true;
00061         } else {
00062             // now try generic decomposition, based on getMember():
00063             Property<PropertyBag> res(v->getName(), v->getDescription() );
00064             if ( types::propertyDecomposition(v, res.value() ) ) {
00065                 this->introspect( res );
00066                 deletePropertyBag( res.value() );
00067                 return true;
00068             }
00069             // Cleanup.
00070             deletePropertyBag( res.value() );
00071             // All failed.
00072             return false;
00073         }
00074         return false;
00075     }
00076 
00077 }