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//=============================================================================
/**
* @file client.cpp
*
* A client program for the Database IDL module
*
*
* @author Irfan Pyarali
*/
//=============================================================================
#include "ace/Get_Opt.h"
#include "ace/Read_Buffer.h"
#include "DatabaseC.h"
#include "ace/OS_NS_fcntl.h"
#include "ace/OS_NS_unistd.h"
#include "ace/OS_NS_string.h"
static char *IOR = 0;
static const ACE_TCHAR *IOR_file = 0;
static int shutdown_server = 0;
static int
parse_args (int argc, ACE_TCHAR **argv)
{
ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("xk:f:"));
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'k':
IOR = ACE_OS::strdup (ACE_TEXT_ALWAYS_CHAR (get_opts.opt_arg ()));
break;
case 'f':
IOR_file = get_opts.opt_arg ();
break;
case 'x':
shutdown_server = 1;
break;
case '?':
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s"
"-k IOR "
"-f IOR file "
"-x [for shutting down the server] "
"\n",
argv [0]),
-1);
}
if (IOR == 0 && IOR_file == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Please specify the IOR or IOR_file for the servant\n"),
-1);
// Indicates successful parsing of command line.
return 0;
}
int
read_IOR_from_file (void)
{
// Open the file for reading.
ACE_HANDLE f_handle =
ACE_OS::open (IOR_file, 0);
if (f_handle == ACE_INVALID_HANDLE)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to open %s for reading\n",
IOR_file),
-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\n"),
-1);
IOR = ACE_OS::strdup (data);
ior_buffer.alloc ()->free (data);
ACE_OS::close (f_handle);
return 0;
}
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
char str [255];
// Initialize the ORB
try
{
ACE_OS::strcpy (str,
"CORBA::ORB_init");
CORBA::ORB_var orb = CORBA::ORB_init (argc, argv);
// Parse the command-line arguments to get the location of the
// IOR
if (parse_args (argc, argv) == -1)
return -1;
if (IOR == 0)
{
int result = read_IOR_from_file ();
if (result != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Cannot read IOR from %s\n",
IOR_file),
-1);
}
ACE_OS::strcpy (str,
"CORBA::ORB::string_to_object");
// Get the object reference with the IOR
CORBA::Object_var object = orb->string_to_object (IOR);
ACE_OS::strcpy (str,
"Database::Agent::_narrow");
// Narrow the object reference to a Database::Agent
Database::Agent_var database_agent =
Database::Agent::_narrow (object.in ());
Database::NVPairSequence employee_attributes (2);
employee_attributes.length (2);
Database::NamedValue &first =
employee_attributes[0];
Database::NamedValue &second =
employee_attributes[1];
const char *name = "irfan";
CORBA::Long id = 555;
first.name = CORBA::string_dup ("name");
first.value <<= name;
second.name = CORBA::string_dup ("id");
second.value <<= id;
ACE_OS::strcpy (str,
"Database::Agent::create_entry");
// Create an employee
Database::Entry_var entry =
database_agent->create_entry ("irfan",
"Employee",
employee_attributes);
ACE_OS::strcpy (str, "Database::Employee::_narrow");
Database::Employee_var employee =
Database::Employee::_narrow (entry.in ());
/*
*
* NOT IMPLEMENTED YET
*
*
*/
#if 0
// Reset the id
ACE_OS::strcpy (str, "Database::Employee::id");
employee->id (666);
#endif /* 0 */
ACE_OS::strcpy (str, "Database::Entry::find");
// Find the employee
entry = database_agent->find_entry ("irfan",
"Employee");
ACE_OS::strcpy (str, "Database::Entry::destroy");
// Destroy the employee
database_agent->destroy_entry ("irfan",
"Employee");
ACE_OS::strcpy (str, "Shutdown server");
if (shutdown_server)
{
database_agent->shutdown ();
}
ACE_OS::free (IOR);
orb->destroy ();
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception (str);
return -1;
}
return 0;
}
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