TAO/docs/tutorials/Quoter/AMI/client.cpp

   1
   2 #include "Handler_i.h"
   3 #include "ace/streams.h"
   4
   5 int ACE_TMAIN (int argc, ACE_TCHAR* argv[])
   6 {
   7   try {
   8     // First initialize the ORB, that will remove some arguments...
   9     CORBA::ORB_var orb =
  10       CORBA::ORB_init (argc, argv);
  11
  12     // There must be at least two arguments, the first is the factory
  13     // name, the rest are the names of the stock symbols we want to
  14     // get quotes for.
  15     if (argc < 3) {
  16       cerr << "Usage: " << argv[0]
  17            << " Factory_IOR symbol symbol..." << endl;
  18       return 1;
  19     }
  20
  21     CORBA::Object_var poa_object =
  22       orb->resolve_initial_references ("RootPOA");
  23     PortableServer::POA_var poa =
  24       PortableServer::POA::_narrow (poa_object.in ());
  25     PortableServer::POAManager_var poa_manager =
  26       poa->the_POAManager ();
  27     poa_manager->activate ();
  28
  29     // Use the first argument to create the factory object reference,
  30     // in real applications we use the naming service, but let's do
  31     // the easy part first!
  32     CORBA::Object_var factory_object =
  33       orb->string_to_object (argv[1]);
  34
  35     // Now downcast the object reference to the appropriate type
  36     Quoter::Stock_Factory_var factory =
  37       Quoter::Stock_Factory::_narrow (factory_object.in ());
  38
  39     // Create and activate the handler...
  40     int response_count = 0;
  41     Single_Query_Stock_Handler_i handler_i (&response_count);
  42     Quoter::AMI_Single_Query_StockHandler_var handler =
  43       handler_i._this ();
  44
  45     // Send all the requests, careful with error handling
  46     int request_count = 0;
  47     for (int i = 2; i != argc; ++i) {
  48       try {
  49         // Get the stock object
  50         Quoter::Stock_var tmp =
  51           factory->get_stock (ACE_TEXT_ALWAYS_CHAR (argv[i]));
  52         Quoter::Single_Query_Stock_var stock =
  53           Quoter::Single_Query_Stock::_narrow (tmp.in ());
  54         if (CORBA::is_nil (stock.in ())) {
  55           cerr << "Cannot get single query interface for <"
  56                << argv[i] << ">" << endl;
  57         }
  58
  59         stock->sendc_get_price_and_names (handler.in ());
  60         request_count++;
  61       }
  62       catch (Quoter::Invalid_Stock_Symbol &) {
  63         cerr << "Invalid stock symbol <"
  64              << argv[i] << ">" << endl;
  65       }
  66     }
  67
  68     while (response_count < request_count
  69            && orb->work_pending ()) {
  70       orb->perform_work ();
  71     }
  72
  73     // Destroy the POA, waiting until the destruction terminates
  74     poa->destroy (true, true);
  75     orb->destroy ();
  76   }
  77   catch (const CORBA::Exception &) {
  78     cerr << "CORBA exception raised!" << endl;
  79   }
  80   return 0;
  81 }