TryCommand.hpp

/***************************************************************************
  tag: Peter Soetens  Tue Dec 21 22:43:08 CET 2004  TryCommand.hpp

                        TryCommand.hpp -  description
                           -------------------
    begin                : Tue December 21 2004
    copyright            : (C) 2004 Peter Soetens
    email                : peter.soetens@mech.kuleuven.ac.be

 ***************************************************************************
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#ifndef ORO_TRY_COMMAND_HPP
#define ORO_TRY_COMMAND_HPP

#include "rtt-scripting-config.h"
#include "../base/ActionInterface.hpp"
#include "ConditionInterface.hpp"
#include "../Logger.hpp"
#include "../internal/DataSource.hpp"

namespace RTT
{ namespace scripting {




    class RTT_SCRIPTING_API TryCommand :
        public base::ActionInterface
    {
        // we must use a internal::DataSource for correct
        // copy sementics ...
        internal::AssignableDataSource<bool>::shared_ptr _result;
        base::ActionInterface* c;
    public:
        TryCommand( base::ActionInterface* command,
                    internal::AssignableDataSource<bool>::shared_ptr storage=0);

        ~TryCommand();

        bool execute();
        void reset();

        bool valid() const;

        void readArguments();

        base::ActionInterface* theCommand() const;

        internal::AssignableDataSource<bool>::shared_ptr result();

        TryCommand* clone() const;

        TryCommand* copy( std::map<const base::DataSourceBase*, base::DataSourceBase*>& alreadyCloned ) const;
    };

    class RTT_SCRIPTING_API TryCommandResult :
        public ConditionInterface
    {
        internal::DataSource<bool>::shared_ptr c;
        bool _invert;
    public:
        TryCommandResult( internal::DataSource<bool>::shared_ptr ec, bool invert);

        ~TryCommandResult();

        bool evaluate();

        ConditionInterface* clone() const;

        ConditionInterface* copy( std::map<const base::DataSourceBase*, base::DataSourceBase*>& alreadyCloned ) const;
    };

    class RTT_SCRIPTING_API EvalCommand :
        public base::ActionInterface
    {
        // the result
        internal::AssignableDataSource<bool>::shared_ptr _cache;
        // the data to evaluate in the command.
        internal::DataSource<bool>::shared_ptr _ds;
    public:
        EvalCommand( internal::DataSource<bool>::shared_ptr ds, internal::AssignableDataSource<bool>::shared_ptr cache=0);

        ~EvalCommand();

        void readArguments();

        bool execute();

        void reset();

        internal::AssignableDataSource<bool>::shared_ptr cache();

        base::ActionInterface* clone() const;

        base::ActionInterface* copy( std::map<const base::DataSourceBase*, base::DataSourceBase*>& alreadyCloned ) const;
    };

    class RTT_SCRIPTING_API EvalCommandResult :
        public ConditionInterface
    {
        internal::DataSource<bool>::shared_ptr c;
    public:
        EvalCommandResult( internal::DataSource<bool>::shared_ptr ec);

        ~EvalCommandResult();

        bool evaluate();

        ConditionInterface* clone() const;

        ConditionInterface* copy( std::map<const base::DataSourceBase*, base::DataSourceBase*>& alreadyCloned ) const;
    };
}}

#endif