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resolv.cc

Esempio di uso del server NameServer. Test con hard-coded dei valori predefiniti per le variabili. Poco utile nella realtà.

/*
 *    FBFS Distributed Object Repository
 *    Copyright (C) 2001 Francesco V. Bassi
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; either version 2 of the License, or
 *    (at your option) any later version.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <iostream.h>
#include "../../idl/NameServer.hh"
#include "../../idl/Object.hh"
#include "../../idl/Security.hh"
#include "../../utils/NameServer.h"

using namespace fbfs;

static void resolv(NameServer_ptr e, string name)
{
    if( CORBA::is_nil(e) ) {
        cerr << "hello: The object reference is nil!\n" << endl;
        return;
    }

    Obj_id id;
    Security sec;
    id.name = CORBA::string_dup( name.c_str() );
    try {
        CORBA::String_var dest = e->lookup(sec, id);
        cerr << "The NameServer object replied: \"" << (char*)dest <<"\"." << endl;
    } catch(NotFound) {
        cout << "Not Found\n";
    } catch(SecurityException) {
        cout << "Security Exception\n";
    } catch(InternalError) {
        cout << "NameServer Internal Error\n";
    } catch(...) {
        cout << "very, very unusual. Check code.\n";
    };
}


int
main (int argc, char **argv) 
{
    try {
        CORBA::ORB_var orb = CORBA::ORB_init(argc, argv, "omniORB3");
        
        if(argc != 3) {
            cerr << "Usage: " << argv[0] << "<NameServer URI> <Name>\n";
            return 0;
        };

        utils::URI uri = utils::URI(argv[1]);

        cout << "NameServer URI: " << uri.toString() << "\n";
        CORBA::Object_var obj = utils::NameServer::get_object(orb, uri);

        NameServer_var nameserver = NameServer::_narrow(obj);
        resolv(nameserver, argv[2]);

        orb->destroy();
    }
    catch(CORBA::COMM_FAILURE& ex) {
        cerr << "Caught system exception COMM_FAILURE -- unable to contact the "
         << "object." << endl;
    }
    catch(CORBA::SystemException&) {
        cerr << "Caught CORBA::SystemException." << endl;
    }
    catch(CORBA::Exception&) {
        cerr << "Caught CORBA::Exception." << endl;
    }
    catch(omniORB::fatalException& fe) {
        cerr << "Caught omniORB::fatalException:" << endl;
        cerr << "  file: " << fe.file() << endl;
        cerr << "  line: " << fe.line() << endl;
        cerr << "  mesg: " << fe.errmsg() << endl;
    }
    catch(...) {
        cerr << "Caught unknown exception." << endl;
    }
    return 0;
}

Generato il Thu Feb 15 13:24:56 2001 per A Simple Distributed Object Repository with CORBA & C++. da doxygen1.2.3 scritto da Dimitri van Heesch, © 1997-2000