RemotePorts.hpp

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/***************************************************************************
  tag: Peter Soetens  Thu Oct 22 11:59:07 CEST 2009  RemotePorts.hpp

                        RemotePorts.hpp -  description
                           -------------------
    begin                : Thu October 22 2009
    copyright            : (C) 2009 Peter Soetens
    email                : peter@thesourcworks.com

 ***************************************************************************
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#ifndef RTT_CORBA_REMOTE_PORTS_HPP
#define RTT_CORBA_REMOTE_PORTS_HPP

#include "../../base/PortInterface.hpp"
#include "../../base/ChannelElement.hpp"
#include "../../InputPort.hpp"
#include "../../OutputPort.hpp"
#include "DataFlowI.h"
#include <cassert>

namespace RTT {
    namespace corba {
        template<typename PortClass>
        class RemotePort : public PortClass
        {
        protected:
            types::TypeInfo const* type_info;
            CDataFlowInterface_var dataflow;
            PortableServer::POA_var mpoa;

            bool connectionAdded( base::ChannelElementBase::shared_ptr channel, ConnPolicy const& policy ) { assert(false && "Can/Should not add connection to remote port object !");return false; }

        public:
            RemotePort(types::TypeInfo const* type_info,
                    CDataFlowInterface_ptr dataflow,
                    std::string const& name,
                    PortableServer::POA_ptr poa);

            PortableServer::POA_ptr _default_POA();
            CDataFlowInterface_ptr getDataFlowInterface() const;

            internal::ConnID* getPortID() const;

            types::TypeInfo const* getTypeInfo() const;
            int serverProtocol() const;
            bool connected() const;
            bool createStream( const ConnPolicy& policy );
            virtual bool addConnection(internal::ConnID* port_id, base::ChannelElementBase::shared_ptr channel_input, ConnPolicy const& policy);
            void disconnect();
            bool disconnect(base::PortInterface* p);
        };

        class RemoteOutputPort
            : public RemotePort<base::OutputPortInterface>
        {
        public:
            RemoteOutputPort(types::TypeInfo const* type_info,
                    CDataFlowInterface_ptr dataflow,
                    std::string const& name,
                    PortableServer::POA_ptr poa);

            bool keepsLastWrittenValue() const;
            void keepLastWrittenValue(bool new_flag);

            using base::OutputPortInterface::createConnection;
            bool createConnection( base::InputPortInterface& sink, ConnPolicy const& policy );

            virtual base::DataSourceBase::shared_ptr getDataSource() const;

            base::PortInterface* clone() const;
            base::PortInterface* antiClone() const;
        };

        class RemoteInputPort
            : public RemotePort<base::InputPortInterface>
        {
            typedef std::map<base::ChannelElementBase*,RTT::corba::CChannelElement_var> ChannelMap;
            ChannelMap channel_map;
        protected:
            virtual bool addConnection(internal::ConnID* port_id, base::ChannelElementBase::shared_ptr channel_input, ConnPolicy const& policy) { return true; }
        public:
            RemoteInputPort(types::TypeInfo const* type_info,
                    CDataFlowInterface_ptr dataflow,
                    std::string const& name,
                    PortableServer::POA_ptr poa);

            base::ChannelElementBase::shared_ptr buildRemoteChannelOutput(
                    base::OutputPortInterface& output_port,
                    types::TypeInfo const* type,
                    base::InputPortInterface& reader_,
                    ConnPolicy const& policy);

            base::PortInterface* clone() const;
            base::PortInterface* antiClone() const;

            base::DataSourceBase* getDataSource();

            virtual bool channelReady(base::ChannelElementBase::shared_ptr channel);
        };
    }
}

#endif