OperationCallerProxy.hpp

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/***************************************************************************
  tag: Peter Soetens Thu Dec 2 12:51:36 2010 +0100 OperationCallerProxy.hpp

                        OperationCallerProxy.hpp -  description
                           -------------------
    begin                : Thu Dec 2 2010
    copyright            : (C) 2010 Peter Soetens
    email                : peter@thesourceworks.com

 ***************************************************************************
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#include "ServiceRequesterC.h"
#include <string>
#include "../../base/OperationCallerBaseInvoker.hpp"
#include "CorbaOperationCallerFactory.hpp"

namespace RTT
{
    namespace corba {
        struct OperationCallerProxy
            : public base::OperationCallerBaseInvoker
        {
            std::string mname;
            CServiceRequester_var msrq;
            OperationCallerProxy(const std::string& opname, CServiceRequester_ptr srq)
            : mname(opname), msrq(srq) {}

            virtual bool ready() const {
                return msrq->callerReady( mname.c_str() );
            }

            virtual void disconnect() {
                msrq->disconnectCaller( mname.c_str() );
            }

            virtual bool setImplementation(boost::shared_ptr<base::DisposableInterface> impl, ExecutionEngine* caller = 0) {
                // impossible for remote operation callers.
                return false;
            }

            virtual bool setImplementationPart(OperationInterfacePart* orp, ExecutionEngine* caller = 0) {
                // todo: forward to remote side.
                // if orp is local, we need to provide the remote side with a service to this operation part.
                // if orp is remote, we need to pass on the service
                CorbaOperationCallerFactory* cocf = dynamic_cast<CorbaOperationCallerFactory*>(orp);
                if (cocf) {
                    // good: it's already a remote service, just pass on the misery
                    return msrq->connectCallerTo(mname.c_str(), cocf->getService() );
                } else {
                    // bad: we need to create or lookup
                    log(Error) <<"Can't connect an operation caller proxy directly to a local service."<<endlog();
                    log(Error) <<"Use CServiceRequester::connectTo() or CServiceRequester::connectCallerTo(). "<<endlog();
                }
                return false;
            }

            virtual void setCaller(ExecutionEngine* caller) {
                    // ignored.
            }

            virtual const std::string& getName() const {
                return mname;
            }
        };
    }
}