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// $Id$
// ============================================================================
//
// = LIBRARY
// TAO/examples/Load_Balancing
//
// = FILENAME
// Identity_Client.cpp
//
// = AUTHOR
// Marina Spivak <marina@cs.wustl.edu>
//
// ============================================================================
#include "Identity_Client.h"
#include "IdentityC.h"
#include "Load_BalancerC.h"
#include "tao/debug.h"
#include "ace/Get_Opt.h"
#include "ace/OS_NS_string.h"
#include "ace/Argv_Type_Converter.h"
Identity_Client::Identity_Client (void)
: group_factory_ior_ (0),
number_of_invocations_ (5),
use_random_ (0)
{
}
int
Identity_Client::parse_args (int argc, char *argv[])
{
ACE_Get_Arg_Opt<char> get_opts (argc, argv, "di:n:r");
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'd': // debug flag.
TAO_debug_level++;
break;
case 'i': // ior of the <Object_Group_Factory> object.
this->group_factory_ior_ = get_opts.opt_arg ();
break;
case 'n': // number of times to make invocation on an <Identity> object.
this->number_of_invocations_ = ACE_OS::atoi (get_opts.opt_arg ());
break;
case 'r': // flag signifying to obtain references to <Identity>
// objects from the random <Object_Group> rather than
// from the round robin one.
this->use_random_ = 1;
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s"
" [-d]"
" [-i] <Object_Group_Factory_ior>"
" [-n] <number_of_invocations>"
" [-r]"
"\n",
argv [0]),
-1);
}
// Indicates successful parsing of command line.
return 0;
}
int
Identity_Client::init (int argc,
char* argv[])
{
int result;
ACE_DECLARE_NEW_CORBA_ENV;
ACE_TRY
{
result = this->orb_manager_.init (argc,
argv
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
if (result == -1)
return result;
// Check the non-ORB arguments.
result = this->parse_args (argc, argv);
if (result < 0)
return result;
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION, "Identity_Client::init");
return -1;
}
ACE_ENDTRY;
ACE_CHECK_RETURN (-1);
return 0;
}
int
Identity_Client::run (ACE_ENV_SINGLE_ARG_DECL)
{
ACE_DEBUG ((LM_DEBUG, "Identity_Client: Initialized \n"));
// Contact the <Object_Group_Factory> to obtain an <Object_Group>.
CORBA::ORB_var orb = orb_manager_.orb ();
CORBA::Object_var obj =
orb->string_to_object (this->group_factory_ior_
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
Load_Balancer::Object_Group_Factory_var factory =
Load_Balancer::Object_Group_Factory::_narrow (obj.in ()
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
if (CORBA::is_nil (factory.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"Identity_Client: problems using the factory ior\n"),
-1);
const char *group_name;
if (this->use_random_)
group_name = "Identity, Random";
else
group_name = "Identity, Round Robin";
ACE_DEBUG ((LM_DEBUG,
"Identity_Client: Requesting Object Group "
"with id <%s>\n", group_name));
Load_Balancer::Object_Group_var object_group =
factory->resolve (group_name
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
// List <Object_Group>'s id.
CORBA::String_var id = object_group->id (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
if (ACE_OS::strcmp (id.in (), group_name) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Identity_Client: incorrect object group"
"returned from factory->resolve\n"),
-1);
// List all <Object_Group>s members.
ACE_DEBUG ((LM_DEBUG,
"Identity_Client: Requesting member list of <%s> Object Group\n",
group_name));
Load_Balancer::Member_ID_List_var id_list =
object_group->members (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
ACE_DEBUG ((LM_DEBUG,
"Identity_Client: The Group contains %d members:\n",
id_list->length ()));
for (CORBA::ULong i = 0; i < id_list->length (); ++i)
ACE_DEBUG ((LM_DEBUG, " <%s>\n",
static_cast<char const*>((id_list[i]))));
// Perform <number_of_invocations_> method calls on <Identity>
// objects, which are members of the <Object_Group>. Before each
// invocations, we get an <Identity> reference to use for that
// invocation from our <Object_Group>.
Identity_var identity_object;
CORBA::String_var identity;
ACE_DEBUG ((LM_DEBUG,
"Identity_Client: Performing %d invocation(s), "
"consulting the <%s> Group\n"
" for Identity object "
"to use before each invocation\n",
this->number_of_invocations_,
group_name));
for (size_t ind = 0; ind < this->number_of_invocations_; ++ind)
{
obj = object_group->resolve (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
identity_object = Identity::_narrow (obj.in ()
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
if (CORBA::is_nil (identity_object.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"Identity_Client: cannot narrow an object received from"
"<Object_Group::resolve> to <Identity>\n"),
-1);
identity_object->get_name (identity.out ()
ACE_ENV_ARG_PARAMETER);
ACE_CHECK_RETURN (-1);
}
ACE_DEBUG ((LM_DEBUG,
"Identity_Client: Done\n"));
return 0;
}
Identity_Client::~Identity_Client (void)
{
}
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
ACE_Argv_Type_Converter convert (argc, argv);
int result = 0;
Identity_Client client;
if (client.init (convert.get_argc(), convert.get_ASCII_argv()) == -1)
return 1;
ACE_DECLARE_NEW_CORBA_ENV;
ACE_TRY
{
result = client.run (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION, "Identity_Client");
return 1;
}
ACE_ENDTRY;
ACE_CHECK_RETURN (1);
if (result == -1)
return 1;
else
return 0;
}
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