// $Id: Structured_Consumer.cpp 91825 2010-09-17 09:10:22Z johnnyw $

// ******************************************************************
// Include Section
// ******************************************************************

#include "ace/Get_Opt.h"

#include "orbsvcs/CosNotifyCommC.h"
#include "orbsvcs/CosNamingC.h"
#include "Notify_Structured_Push_Consumer.h"
#include "goC.h"
#include "tao/debug.h"
#include "Notify_Test_Client.h"
#include "ace/OS_NS_sys_time.h"

// ******************************************************************
// Data Section
// ******************************************************************

static const ACE_TCHAR *ior = ACE_TEXT ("file://supplier.ior");
static CORBA::Boolean filter = 0;
static unsigned int consumers = 2;
static unsigned int expected = 1000;

#define GRAMMAR "TCL"

// ******************************************************************
// Subroutine Section
// ******************************************************************

class Consumer_Client : public Notify_Test_Client
{
public:
  virtual int parse_args (int argc, ACE_TCHAR *argv[]);
};


int
Consumer_Client::parse_args (int argc, ACE_TCHAR *argv[])
{
  ACE_Get_Opt get_opts (argc, argv, ACE_TEXT("k:e:c:f"));
  int c;

  while ((c = get_opts ()) != -1)
    switch (c)
      {
      case 'k':
        ior = get_opts.optarg;
        break;

      case 'c':
        consumers = ACE_OS::atoi (get_opts.optarg);
        break;

      case 'e':
        expected = ACE_OS::atoi (get_opts.optarg);
        break;

      case 'f':
        filter = 1;
        break;

      default:
        ACE_ERROR_RETURN ((LM_ERROR,
                           "usage:  %s "
                           "-k <ior> "
                           "-c <# of consumers> "
                           "-e <expected events> "
                           "-f "
                           "\n",
                           argv [0]),
                          -1);
      }
  // Indicates successful parsing of the command line
  return 0;
}


static CosNotifyChannelAdmin::ConsumerAdmin_ptr
create_consumeradmin (CosNotifyChannelAdmin::EventChannel_ptr ec)
{
  CosNotifyChannelAdmin::AdminID adminid = 0;
  CosNotifyChannelAdmin::ConsumerAdmin_var admin =
    ec->new_for_consumers (CosNotifyChannelAdmin::AND_OP,
                           adminid);


  if (filter)
    {
      // Filter Section
      CosNotifyFilter::FilterFactory_var ffact =
          ec->default_filter_factory ();

      // One Filter
      CosNotifyFilter::Filter_var filter =
          ffact->create_filter (GRAMMAR);

      CosNotifyFilter::ConstraintExpSeq constraint_list (1);
      constraint_list.length (1);

      constraint_list[0].event_types.length (0);
      constraint_list[0].constraint_expr =
                                 CORBA::string_dup ("type == 'even'");

      filter->add_constraints (constraint_list);

      admin->add_filter (filter.in ());
      // End One Filter
    }

  return CosNotifyChannelAdmin::ConsumerAdmin::_duplicate (admin.in ());
}


static void
create_consumers (CosNotifyChannelAdmin::ConsumerAdmin_ptr admin,
                  Notify_Test_Client* client)
{
  for(unsigned int i = 0; i < consumers; i++)
    {
      // startup the first consumer
      char name[64] = "";
      ACE_OS::sprintf(name, "consumer%u", i);
      Notify_Structured_Push_Consumer* consumer;
      ACE_NEW_THROW_EX (consumer,
                        Notify_Structured_Push_Consumer (
                                         name,
                                         expected,
                                         *client),
                        CORBA::NO_MEMORY ());

      consumer->init (client->root_poa ());

      consumer->_connect (admin);
    }
}

// ******************************************************************
// Main Section
// ******************************************************************

int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
  int status = 0;
  try
    {
      Consumer_Client client;

      status = client.init (argc, argv);

      if (status == 0)
        {
          // If we are filtering, we will get half as many as originally
          // expected
          if (filter)
            {
              expected /= 2;
            }

          CosNotifyChannelAdmin::EventChannel_var ec =
          client.create_event_channel ("MyEventChannel", 1);

          CORBA::ORB_ptr orb = client.orb ();
          CORBA::Object_var object =
                              orb->string_to_object (ior);

          sig_var sig = sig::_narrow (object.in ());

          if (CORBA::is_nil (sig.in ()))
            {
              ACE_ERROR_RETURN ((LM_ERROR,
                                 "Object reference <%s> is nil\n",
                                 ior),
                                1);
            }

          CosNotifyChannelAdmin::ConsumerAdmin_var admin =
            create_consumeradmin (ec.in ());

          if (!CORBA::is_nil (admin.in ()))
            {
              create_consumers(admin.in (), &client);

              // Tell the supplier to go
              sig->go ();

              client.ORB_run( );
              ACE_DEBUG((LM_DEBUG, "Consumer done.\n"));

              sig->done ();
            }
        }
    }
  catch (const CORBA::Exception& e)
    {
      e._tao_print_exception ("Error: Consumer exception: ");
      status = 1;
    }

  return status;
}
