#include <fstream.h>
#include "Echo.H"

// This client reads the IOR from the naming service

static void hello( Echo_ptr echo )
{
  CORBA::String_var src = (const char*) "Hello there!";

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

  cout << "I said [" << (char*)src << "]." << endl;
  cout << "The echo replied [" << (char*)dest << "]." << endl;
}


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

      // Obtain a reference to the Naming Service
      CORBA::Object_var obj = orb->resolve_initial_references("NameService");
      if( CORBA::is_nil( obj ) )
	{
	  cerr << "Cannot get hold of name service" << endl;
	  return 1;
	}

      CosNaming::NamingContextExt_var nsRoot = CosNaming::NamingContextExt::_narrow(obj);
      if( CORBA::is_nil( nsRoot ) )
	{
	  cerr << "Cannot narrow root naming context" << endl;
	  return 1;
	}
    
      // Get IOR from name
      obj = nsRoot->resolve_str( "TheEcho" );
      if( CORBA::is_nil( obj ) )
	{
	  cerr << "Got no IOR from naming service" << endl;
	  return 1;
	}

      // Narrow object reference to Echo
      Echo_var echoref = Echo::_narrow( obj );
      if( CORBA::is_nil( echoref ) )
	{
	  cerr << "Cannot narrow object reference to type Echo" << endl;
	  return 1;
	}
  
      for( int count=0; count<5; count++ )
	{
	  hello( echoref );
	}

      orb->destroy();
    }
  catch( CORBA::COMM_FAILURE& ex )
    {
      cerr << "Exception COMM_FAILURE" << endl;
    }
  catch(CORBA::SystemException& ex) {
    cerr << "Caught CORBA::SystemException: ["
	 << ex.NP_minorString() << "]" << endl;
  }
  catch( CORBA::Exception& ex )
    {
      cerr << "CORBA Exception: [" << ex._name() << "]" << endl;
    }
  catch( ... )
    {
      cerr << "Unexpected exception" << endl;
    }

  return 0;
}