VertexNode.cpp

/***************************************************************************
  tag: Peter Soetens  Mon May 10 19:10:37 CEST 2004  VertexNode.cxx

                        VertexNode.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.                                                       *
 *                                                                         *
 *   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.                       *
 *                                                                         *
 *   You should have received a copy of the GNU General Public             *
 *   License along with this library; if not, write to the Free Software   *
 *   Foundation, Inc., 59 Temple Place,                                    *
 *   Suite 330, Boston, MA  02111-1307  USA                                *
 *                                                                         *
 ***************************************************************************/
#include "VertexNode.hpp"
#include "CommandNOP.hpp"
#include "../base/ActionInterface.hpp"
#include "../internal/DataSource.hpp"

namespace RTT {
    using namespace detail;


    VertexNode::VertexNode()
        : command( new CommandNOP ),
          lineNumber( 0 )
    {
    }

        VertexNode::VertexNode( const VertexNode& orig )
                : command( orig.getCommand()->clone() ),
                  lineNumber(orig.getLineNumber())
        {
        }

        VertexNode::VertexNode(ActionInterface* cmd)
        : command( cmd ),
          lineNumber( 0 )
    {
    }

    VertexNode::~VertexNode()
    {
        delete command;
    }


    bool VertexNode::execute()
    {
        return command->execute();
    }

    bool VertexNode::isValid() const {
        return command->valid();
    }

    ActionInterface* VertexNode::getCommand() const
    {
        return command;
    }

    ActionInterface* VertexNode::setCommand(ActionInterface* cmd)
    {
        ActionInterface* old = command;
        command = cmd;
        return old;
    }

    void VertexNode::setLineNumber(int ln)
    {
        lineNumber = ln ;
    }

    int VertexNode::getLineNumber() const
    {
        return lineNumber;
    }

    void VertexNode::startExecution()
    {
        // reset the command
        command->reset();
        command->readArguments();
    }

    VertexNode VertexNode::copy( std::map<const DataSourceBase*, DataSourceBase*>& rdss ) const
    {
        VertexNode ret( *this );
        delete ret.setCommand( getCommand()->copy( rdss ) );
        return ret;
    }

    VertexNode& VertexNode::operator=( const VertexNode& orig )
    {
        if ( &orig == this)
            return *this;
        delete command;
        command = orig.getCommand()->clone();
        lineNumber = orig.getLineNumber();
        return *this;
    }
}