eg1.cc

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// eg1.cc - This example is identical to that found in:
//             <top>/src/examples/echo/eg1.cc
//          except that implicit activation is used to activate
//          the echo object.
//
// Usage: eg1
//

#include <echo.hh>

#ifdef HAVE_STD
#  include <iostream>
   using namespace std;
#else
#  include <iostream.h>
#endif


class Echo_i : public POA_Echo,
	       public PortableServer::RefCountServantBase
{
public:
  inline Echo_i() {}
  virtual ~Echo_i() {}
  virtual char* echoString(const char* mesg);
};


char* Echo_i::echoString(const char* mesg)
{
  return CORBA::string_dup(mesg);
}

//////////////////////////////////////////////////////////////////////

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

  CORBA::String_var src = (const char*) "Hello!";

  CORBA::String_var dest = e->echoString(src);

  cerr << "I said, \"" << (char*)src << "\"." << endl
       << "The Echo object replied, \"" << (char*)dest <<"\"." << endl;
}

//////////////////////////////////////////////////////////////////////

int main(int argc, char** argv)
{
  try {
    CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);

    {
      CORBA::Object_var obj = orb->resolve_initial_references("RootPOA");
      PortableServer::POA_var poa = PortableServer::POA::_narrow(obj);

      // NB. You can activate the POA before or after
      // activating objects in that POA.
      PortableServer::POAManager_var pman = poa->the_POAManager();
      pman->activate();

      Echo_i* myecho = new Echo_i();

      // This activates the object in the root POA (by default), and
      // returns a reference to it.
      Echo_var myechoref = myecho->_this();

      myecho->_remove_ref();

      hello(myechoref);

    }
    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;
}