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// $Id$
#include "Client_i.h"
#include "ace/Get_Opt.h"
#include "ace/Read_Buffer.h"
ACE_RCSID(Echo, Client_i, "$Id$")
// Constructor.
Client_i::Client_i (void)
: ior_ (0),
loop_count_ (10),
shutdown_ (0),
use_naming_service_ (1),
server_ ()
{
}
// Reads the Server factory IOR from a file.
int
Client_i::read_ior (char *filename)
{
// Open the file for reading.
ACE_HANDLE f_handle = ACE_OS::open (filename, 0);
if (f_handle == ACE_INVALID_HANDLE)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to open %s for writing: %p\n",
filename),
-1);
ACE_Read_Buffer ior_buffer (f_handle);
char *data = ior_buffer.read ();
if (data == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to read ior: %p\n"),
-1);
this->ior_ = ACE_OS::strdup (data);
ior_buffer.alloc ()->free (data);
ACE_OS::close (f_handle);
return 0;
}
// Parses the command line arguments and returns an error status.
int
Client_i::parse_args (void)
{
ACE_Get_Opt get_opts (argc_, argv_, "dn:f:xk:xs");
int c;
int result;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'd': // debug flag
TAO_debug_level++; //****
break;
case 'n': // loop count
this->loop_count_ = (u_int) ACE_OS::atoi (get_opts.optarg);
break;
case 'k': // ior provide on command line
this->ior_ = ACE_OS::strdup (get_opts.optarg);
break;
case 'f': // read the IOR from the file.
result = this->read_ior (get_opts.optarg);
if (result < 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to read ior from %s : %p\n",
get_opts.optarg),
-1);
break;
case 's': // don't use the naming service
this->use_naming_service_ = 0;
break;
case 'x':
this->shutdown_ = 1;
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s"
" [-d]"
" [-n loopcount]"
" [-f ior-file]"
" [-k ior]"
" [-x]"
" [-s]"
"\n",
this->argv_ [0]),
-1);
}
// Indicates successful parsing of command line.
return 0;
}
//Display the message on the screen
void
Client_i::echo (const char *message)
{
// @@ Please make sure to test that exception handling is working.
TAO_TRY
{
// Make the RMI.
CORBA::String_var s = this->server_->echo (message,
TAO_TRY_ENV);
TAO_CHECK_ENV;
ACE_DEBUG ((LM_DEBUG,
"%s\n",
s.in ()));
}
TAO_CATCHANY
{
ACE_DEBUG ((LM_DEBUG,
"Exception raised!\n"));
}
TAO_ENDTRY;
}
// Execute client example code.
int
Client_i::run (void)
{
for (;;)
{
char buf[BUFSIZ];
// Get the input message which has to be displayed.
ACE_DEBUG ((LM_DEBUG,
"ECHO? "));
if (ACE_OS::fgets (buf, sizeof buf, stdin) == 0)
break;
// Make a call to the method which will display the input
// string.
this->echo (buf);
}
// End of the job, so tata! ;)
if (this->shutdown_)
this->server_->shutdown (this->env_);
return 0;
}
Client_i::~Client_i (void)
{
ACE_OS::free (this->ior_);
}
int
Client_i::via_naming_service(void)
{
TAO_TRY
{
// Initialization of the naming service.
if (naming_services_client_.init (orb_.in ()) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
" (%P|%t) Unable to initialize "
"the TAO_Naming_Client. \n"),
-1);
CosNaming::Name echo_ref_name (1);
echo_ref_name.length (1);
echo_ref_name[0].id = CORBA::string_dup ("Echo");
CORBA::Object_var echo_obj =
this->naming_services_client_->resolve (echo_ref_name,
TAO_TRY_ENV);
TAO_CHECK_ENV;
// The CORBA::Object_var object is downcast to Echo_var using
// the <_narrow> method.
this->server_ =
Echo::_narrow (echo_obj.in (),
TAO_TRY_ENV);
TAO_CHECK_ENV;
}
TAO_CATCHANY
{
TAO_TRY_ENV.print_exception ("Echo::via_naming_service\n");
return -1;
}
TAO_ENDTRY;
return 0;
}
// Init function.
int
Client_i::init (int argc, char **argv)
{
this->argc_ = argc;
this->argv_ = argv;
TAO_TRY
{
// Retrieve the ORB.
this->orb_ = CORBA::ORB_init (this->argc_,
this->argv_,
0,
TAO_TRY_ENV);
TAO_CHECK_ENV;
// Parse command line and verify parameters.
if (this->parse_args () == -1)
return -1;
TAO_debug_level = 1; //****
if (this->use_naming_service_)
return via_naming_service ();
if (this->ior_ == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"%s: no ior specified\n",
this->argv_[0]),
-1);
CORBA::Object_var server_object =
this->orb_->string_to_object (this->ior_,
TAO_TRY_ENV);
TAO_CHECK_ENV;
if (CORBA::is_nil (server_object.in ()))
ACE_ERROR_RETURN ((LM_ERROR,
"invalid ior <%s>\n",
this->ior_),
-1);
// The downcasting from CORBA::Object_var to Echo_var is done
// using the <_narrow> method.
this->server_ = Echo::_narrow (server_object.in (),
TAO_TRY_ENV);
TAO_CHECK_ENV;
}
TAO_CATCHANY
{
TAO_TRY_ENV.print_exception ("Client_i::init");
return -1;
}
TAO_ENDTRY;
return 0;
}
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