TAO/orbsvcs/DevGuideExamples/NamingService/Naming_Context_Ext/MessengerServer.cpp

   1 #include "Messenger_i.h"
   2 #include "orbsvcs/CosNamingC.h"
   3 #include <iostream>
   4 #include <fstream>
   5 #include "ace/Get_Opt.h"
   6
   7 const ACE_TCHAR *ior_output_file = ACE_TEXT ("url.ior");
   8 const ACE_TCHAR *hostname = ACE_TEXT ("localhost");
   9 const ACE_TCHAR *port = ACE_TEXT ("2809");
  10
  11 int
  12 parse_args (int argc, ACE_TCHAR *argv[])
  13 {
  14   ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("o:h:p:"));
  15   int c;
  16
  17   while ((c = get_opts ()) != -1)
  18     switch (c)
  19       {
  20       case 'o':
  21         ior_output_file = get_opts.opt_arg ();
  22         break;
  23
  24       case 'h':
  25         hostname = get_opts.opt_arg ();
  26         break;
  27
  28       case 'p':
  29         port = get_opts.opt_arg ();
  30         break;
  31
  32       case '?':
  33       default:
  34         ACE_ERROR_RETURN ((LM_ERROR,
  35                            "usage:  %s "
  36                            "-o <iorfile> "
  37                            "-h <host> "
  38                            "-p <port>"
  39                            "\n",
  40                            argv [0]),
  41                           -1);
  42       }
  43   // Indicates successful parsing of the command line
  44   return 0;
  45 }
  46
  47 int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
  48 {
  49
  50   try {
  51     // Initialize orb
  52     CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);
  53
  54     if (parse_args (argc, argv) != 0)
  55       return 1;
  56
  57     //Get reference to Root POA
  58     CORBA::Object_var obj = orb->resolve_initial_references("RootPOA");
  59     PortableServer::POA_var poa = PortableServer::POA::_narrow(obj.in());
  60
  61     // Activate POA Manager
  62     PortableServer::POAManager_var mgr = poa->the_POAManager();
  63     mgr->activate();
  64
  65     // Find the Naming Service
  66     obj = orb->resolve_initial_references("NameService");
  67     CosNaming::NamingContextExt_var root =
  68       CosNaming::NamingContextExt::_narrow(obj.in());
  69     if (CORBA::is_nil(root.in())) {
  70       std::cerr << "Nil Naming Context reference" << std::endl;
  71       return 1;
  72     }
  73
  74     // Bind a new context.
  75     CosNaming::Name name;
  76     name.length( 1 );
  77     name[0].id = CORBA::string_dup( "root.esc-dot" );
  78     name[0].kind = CORBA::string_dup( "kind1" );
  79
  80     try {
  81       obj = root->resolve(name);
  82     }
  83     catch(const CosNaming::NamingContext::NotFound&) {
  84       CosNaming::NamingContext_var dummy = root->bind_new_context(name);
  85     }
  86
  87     name.length( 2 );
  88     name[1].id = CORBA::string_dup( "leaf/esc-slash" );
  89     name[1].kind = CORBA::string_dup( "kind2" );
  90
  91     // Create an object
  92     PortableServer::Servant_var<Messenger_i> servant = new Messenger_i;
  93     PortableServer::ObjectId_var oid = poa->activate_object(servant.in());
  94     CORBA::Object_var messenger_obj = poa->id_to_reference(oid.in());
  95     root->rebind(name, messenger_obj.in());
  96
  97     // Also try rebinding to a simple path.
  98     CosNaming::Name_var simp_name = root->to_name("Simple");
  99     try {
 100       obj = root->resolve(simp_name.in());
 101     }
 102     catch(const CosNaming::NamingContext::NotFound&) {
 103       CosNaming::NamingContext_var dummy =
 104         root->bind_new_context(simp_name.in());
 105     }
 106     simp_name = root->to_name("Simple/Messenger");
 107     root->rebind(simp_name.in(), messenger_obj.in());
 108
 109     // Convert Name to String Name.
 110     CORBA::String_var str_name = root->to_string(name);
 111     std::cout << "str_name:  " << str_name.in() << std::endl;
 112     CORBA::String_var str_simple = root->to_string(simp_name.in());
 113     std::cout << "simple: " << str_simple.in() << std::endl;
 114
 115     // Convert String Name to Name.
 116     CosNaming::Name_var tname = root->to_name(str_name.in());
 117
 118     std::cout << "converted back to a CosNaming::Name: " << std::endl;
 119     std::cout << "   name[0] = " << (* tname)[0].id.in() << " , "
 120          << (* tname)[0].kind.in() << std::endl;
 121     std::cout << "   name[1] = " << (* tname)[1].id.in() << " , "
 122          << (* tname)[1].kind.in() << std::endl;
 123
 124     // Find the application object by resolve_str.
 125     try {
 126       obj = root->resolve_str(str_name.in());
 127     }
 128     catch(const CosNaming::NamingContext::NotFound&) {
 129       std::cerr<<"Couldn't resolve the string name:  " << str_name << std::endl;
 130       return 1;
 131     }
 132
 133     ACE_CString base_address (":");
 134     base_address += ACE_TEXT_ALWAYS_CHAR (hostname);
 135     base_address += ":";
 136     base_address += ACE_TEXT_ALWAYS_CHAR (port);
 137     ACE_CString addr ("");
 138     addr = base_address + "/key/str";
 139
 140     // Create an URL string for application object.
 141     CORBA::String_var address = CORBA::string_dup (addr.c_str());
 142
 143     std::cout << "call to_url(\"" << address.in() << "\"" << std::endl;
 144     std::cout << "           ,\"" << str_simple.in() << "\")"<< std::endl;
 145
 146     CORBA::String_var url_string = root->to_url(address.in(), str_simple.in());
 147
 148     std::cout << "to_url result: " << url_string.in() << std::endl;
 149
 150
 151     // Write NS url to a file to let client read NS URL to get
 152     // NamingContext reference.
 153     CORBA::String_var ns_addr = CORBA::string_dup(base_address.c_str());
 154
 155     std::cout << "call to_url(\"" <<ns_addr.in() << "\",\""
 156          << str_simple.in() << "\")"<< std::endl;
 157
 158     CORBA::String_var url = root->to_url(ns_addr.in(), str_simple.in());
 159     std::cout << "to_url result:    " << url.in() << std::endl;
 160
 161
 162     std::ofstream iorFile(ACE_TEXT_ALWAYS_CHAR (ior_output_file));
 163     iorFile << url.in() << std::endl;
 164     iorFile.close();
 165
 166     std::cout << "Naming Service URL written to file " << ior_output_file << std::endl;
 167
 168     // Accept requests
 169     orb->run();
 170     orb->destroy();
 171   }
 172   catch(const CORBA::Exception& ex) {
 173     std::cerr << "Caught a CORBA::Exception: " << ex << std::endl;
 174     return 1;
 175   }
 176
 177   return 0;
 178 }