1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// $Id$
// ============================================================================
//
// = LIBRARY
// TAO/examples/POA/On_Demand_Loading
//
// = FILENAME
// Servant_Activator.cpp
//
// = DESCRIPTION
// Implementation of <ServantActivator_i>, which is used by a POA
// with a RETAIN policy.
//
// = AUTHOR
// Kirthika Parameswaran <kirthika@cs.wustl.edu>
//
// ============================================================================
#include "Servant_Activator.h"
ACE_RCSID (On_Demand_Loading,
Servant_Activator,
"$Id$")
// Initialization.
ServantActivator_i::ServantActivator_i (CORBA::ORB_ptr orb)
: servant_manager_ (orb)
{
}
// This method associates an servant with the ObjectID.
PortableServer::Servant
ServantActivator_i::incarnate (const PortableServer::ObjectId &oid,
PortableServer::POA_ptr poa)
{
// Convert ObjectId to String.
CORBA::String_var s =
PortableServer::ObjectId_to_string (oid);
// Activate and return the servant else exception.
PortableServer::Servant servant =
this->servant_manager_.obtain_servant (ACE_TEXT_CHAR_TO_TCHAR(s.in ()),
poa);
if (servant != 0)
return servant;
else
throw CORBA::OBJECT_NOT_EXIST ();
}
// This is the method invoked when the object is deactivated or the
// entire POA is is deactivated or destroyed.
void
ServantActivator_i::etherealize (const PortableServer::ObjectId &oid,
PortableServer::POA_ptr,
PortableServer::Servant servant,
CORBA::Boolean,
CORBA::Boolean remaining_activations)
{
// If there are no remaining activations i.e ObjectIds associated
// with test servant, deactivate it. Etheralization happens on
// POA::destroy() and/or Object::deactivate().
if (remaining_activations == 0)
this->servant_manager_.destroy_servant (servant, oid);
}
// This method returns an ObjectId when given an dll name and the
// factory function to be invoked in the dll. The format of the
// ObjectId is <dllname:factory_function>.
PortableServer::ObjectId_var
ServantActivator_i::create_dll_object_id (const char *dllname,
const char *factory_function)
{
return this->servant_manager_.create_dll_object_id (dllname,
factory_function);
}
|