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// -*- C++ -*-
//=============================================================================
/**
* @file Forwarder.h
*
* $Id$
*
* @brief This class implements ImR's forwarding ServantLocator
*
* @author Darrell Brunsch <brunsch@cs.wustl.edu>
* @author Priyanka Gontla <pgontla@doc.ece.uci.edu>
*/
//=============================================================================
#ifndef IMR_FORWARDER_H
#define IMR_FORWARDER_H
#include "tao/PortableServer/PortableServer.h"
#include "tao/PortableServer/ServantLocatorC.h"
#include "tao/DynamicInterface/Dynamic_Implementation.h"
#include "tao/DynamicInterface/AMH_DSI_Response_Handler.h"
#include "tao/Messaging/Messaging.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/LocalObject.h"
#include "ImR_ResponseHandler.h"
class ImR_Locator_i;
//----------------------------------------------------------------------------
/**
* @class ImR_DSI_ReplyHandler
*
* @brief specialized reply handler for forward requests that need to send an
* ior
*
* Used to send either a Location_Forward exception, or some other error
* exception.
*/
// forward declare the types used to manage AMH/DSI coupling
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
class TAO_AMH_DSI_Response_Handler;
typedef TAO_AMH_DSI_Response_Handler * TAO_AMH_DSI_Response_Handler_ptr;
class TAO_AMH_DSI_Response_Handler_var;
TAO_END_VERSIONED_NAMESPACE_DECL
class ImR_DSI_ResponseHandler : public ImR_ResponseHandler
{
public:
ImR_DSI_ResponseHandler (const char *key,
const char *server_name,
CORBA::ORB_ptr orb,
TAO_AMH_DSI_Response_Handler_ptr resp);
~ImR_DSI_ResponseHandler (void);
void send_ior (const char *pior);
void send_exception (CORBA::Exception *ex);
private:
void invoke_excep_i (CORBA::Exception *ex);
CORBA::String_var key_str_;
CORBA::String_var server_name_;
CORBA::ORB_var orb_;
TAO_AMH_DSI_Response_Handler_var resp_;
};
//---------------------------------------------------------------------------
/**
* @class ImR_Forwarder:
*
* @brief Implementation Repository Forwarder for AMH
*
* This class provides a Default servant implementation that is used to handle
* arbitrary calls and forward them to the correct place. Combinds DSI with
* AMH to ensure the handling thread is never blocked waiting for an upcall
* if one is necessary
*/
class ImR_DSI_Forwarder : public virtual TAO_DynamicImplementation
{
public:
ImR_DSI_Forwarder (ImR_Locator_i& imr_impl);
virtual ~ImR_DSI_Forwarder (void);
virtual void _dispatch (TAO_ServerRequest& request,
TAO::Portable_Server::Servant_Upcall *context);
void invoke (CORBA::ServerRequest_ptr request);
char * _primary_interface(const PortableServer::ObjectId&,
PortableServer::POA_ptr);
void invoke (CORBA::ServerRequest_ptr request,
TAO_AMH_DSI_Response_Handler_ptr rh);
void invoke_get_interface(CORBA::ServerRequest_ptr request);
void invoke_primary_interface(CORBA::ServerRequest_ptr request);
void init(CORBA::ORB_ptr orb);
private:
/// Where we find out where to forward to.
ImR_Locator_i& locator_;
/// POA reference.
PortableServer::Current_var poa_current_var_;
/// Variable to save the ORB reference passed to the constr.
CORBA::ORB_ptr orb_;
};
#endif /* IMR_FORWARDER_H */
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