TAO/tests/POA/On_Demand_Loading/Servant_Activator.cpp

   1
   2 //=============================================================================
   3 /**
   4  *  @file     Servant_Activator.cpp
   5  *
   6  *   Implementation of <ServantActivator_i>, which is used by a POA
   7  *   with a RETAIN policy.
   8  *
   9  *  @author  Kirthika Parameswaran <kirthika@cs.wustl.edu>
  10  */
  11 //=============================================================================
  12
  13
  14 #include "Servant_Activator.h"
  15
  16 // Initialization.
  17
  18 ServantActivator_i::ServantActivator_i (CORBA::ORB_ptr orb)
  19   : servant_manager_ (orb)
  20 {
  21 }
  22
  23 // This method associates an servant with the ObjectID.
  24
  25 PortableServer::Servant
  26 ServantActivator_i::incarnate (const PortableServer::ObjectId &oid,
  27                                PortableServer::POA_ptr poa)
  28 {
  29   // Convert ObjectId to String.
  30    CORBA::String_var s =
  31      PortableServer::ObjectId_to_string (oid);
  32
  33   // Activate and return the servant else exception.
  34   PortableServer::Servant servant =
  35     this->servant_manager_.obtain_servant (ACE_TEXT_CHAR_TO_TCHAR(s.in ()),
  36                                            poa);
  37   if (servant != 0)
  38     return servant;
  39   else
  40     throw CORBA::OBJECT_NOT_EXIST ();
  41 }
  42
  43 // This is the method invoked when the object is deactivated or the
  44 // entire POA is is deactivated or destroyed.
  45
  46 void
  47 ServantActivator_i::etherealize (const PortableServer::ObjectId &oid,
  48                                  PortableServer::POA_ptr,
  49                                  PortableServer::Servant servant,
  50                                  CORBA::Boolean,
  51                                  CORBA::Boolean remaining_activations)
  52 {
  53   // If there are no remaining activations i.e ObjectIds associated
  54   // with test servant, deactivate it.  Etheralization happens on
  55   // POA::destroy() and/or Object::deactivate().
  56
  57   if (remaining_activations == 0)
  58     this->servant_manager_.destroy_servant (servant, oid);
  59 }
  60
  61 // This method returns an ObjectId when given an dll name and the
  62 // factory function to be invoked in the dll.  The format of the
  63 // ObjectId is <dllname:factory_function>.
  64
  65 PortableServer::ObjectId_var
  66 ServantActivator_i::create_dll_object_id (const char *dllname,
  67                                           const char *factory_function)
  68 {
  69   return this->servant_manager_.create_dll_object_id (dllname,
  70                                                       factory_function);
  71 }