event_supplier.cpp

来自「这是广泛使用的通信开源项目,对于大容量,高并发的通讯要求完全能够胜任,他广泛可用」· C++ 代码 · 共 247 行

#include "Event_Supplier.h"
#include "orbsvcs/CosEventChannelAdminS.h"
#include "ace/OS_main.h"

ACE_RCSID (Event,
           Event_Supplier,
           "Event_Supplier.cpp,v 1.7 2003/11/01 11:15:09 dhinton Exp")


#define NAMING_SERVICE_NAME "NameService"
#define EVENT_TLS_LOG_FACTORY_NAME "EventLogFactory"
#define LOG_EVENT_COUNT 9
#define QUERY_1 "id > 0"
#define QUERY_2 "id >= 0"
#define QUERY_LANG "TCL"

int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
  Supplier supplier;

  return supplier.run (argc, argv);
}

// ****************************************************************

Supplier::Supplier (void)
{
}

int
Supplier::run (int argc, char* argv[])
{
  ACE_DECLARE_NEW_CORBA_ENV;
  ACE_TRY
    {
      // ORB initialization boiler plate...
      this->orb_ =
        CORBA::ORB_init (argc, argv, "" ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      CORBA::Object_var object =
        this->orb_->resolve_initial_references ("RootPOA" ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;
      PortableServer::POA_var poa =
        PortableServer::POA::_narrow (object.in () ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;
      PortableServer::POAManager_var poa_manager =
        poa->the_POAManager (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;
      poa_manager->activate (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;


      CORBA::Object_var naming_obj =
      this->orb_->resolve_initial_references (NAMING_SERVICE_NAME
                                            ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      // Need to check return value for errors.
      if (CORBA::is_nil (naming_obj.in ()))
        ACE_THROW_RETURN (CORBA::UNKNOWN (), 0);

      this->naming_context_ =
        CosNaming::NamingContext::_narrow (naming_obj.in () ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;


      CosNaming::Name name (1);
      name.length (1);
      name[0].id = CORBA::string_dup (EVENT_TLS_LOG_FACTORY_NAME);

      CORBA::Object_var obj =
        this->naming_context_->resolve (name
                                       ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      this->event_log_factory_ =
        DsEventLogAdmin::EventLogFactory::_narrow (obj.in ()
                                              ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      ACE_ASSERT (!CORBA::is_nil (this->event_log_factory_.in ()));


      // create a log..

      ACE_DEBUG ((LM_DEBUG,
                  "\nCalling EventLogFactory::create...\n"));

      DsLogAdmin::LogFullActionType logfullaction = DsLogAdmin::halt;
      DsLogAdmin::CapacityAlarmThresholdList threshold = 0;
      CORBA::ULongLong max_size = 0; // 0 means "infinite"

      DsLogAdmin::LogId logid = 0;

      DsEventLogAdmin::EventLog_var event_log =
      // DsLogAdmin::Log_var event_log =
        this->event_log_factory_->create (logfullaction,
                                          max_size,
                                          threshold,
                                          logid
                                          ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

  
      ACE_DEBUG ((LM_DEBUG,
                  "Create returned logid = %d\n",logid));

      CosEventChannelAdmin::SupplierAdmin_var supplier_admin = 
        event_log->for_suppliers (ACE_ENV_SINGLE_ARG_PARAMETER);

      this->consumer_ = 
        supplier_admin->obtain_push_consumer (ACE_ENV_SINGLE_ARG_PARAMETER);
  
      CosEventComm::PushSupplier_var supplier =
        this->_this (ACE_ENV_SINGLE_ARG_PARAMETER);

      this->consumer_->connect_push_supplier (supplier.in () ACE_ENV_ARG_PARAMETER);

      // Create some fake log events.
      CORBA::Any event;
      event <<= CORBA::ULong (10);

      for (int d = 0; d < LOG_EVENT_COUNT; d++)
        {
          this->consumer_->push (event ACE_ENV_ARG_PARAMETER);
        }

      ACE_DEBUG ((LM_DEBUG,
                  "Writing %d records...\n", LOG_EVENT_COUNT));
      ACE_TRY_CHECK;

      ACE_DEBUG ((LM_DEBUG,
                  "Calling EventLog::get_n_records...\n"));
#ifndef ACE_LACKS_LONGLONG_T
      CORBA::Long retval = event_log->get_n_records (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;
#else
      CORBA::Long retval = event_log->get_n_records (ACE_ENV_SINGLE_ARG_PARAMETER).lo();
      ACE_TRY_CHECK;
#endif

      ACE_DEBUG ((LM_DEBUG, "Number of records in Log = %d \n", retval));

      ACE_DEBUG ((LM_DEBUG,
                  "Calling EventLog::get_current_size...\n"));
#ifndef ACE_LACKS_LONGLONG_T
      retval = event_log->get_current_size (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;
#else
      retval = event_log->get_current_size (ACE_ENV_SINGLE_ARG_PARAMETER).lo();
      ACE_TRY_CHECK;
#endif

      ACE_DEBUG ((LM_DEBUG, "Size of data in Log = %d \n", retval));

      ACE_DEBUG ((LM_DEBUG, "Querying the Log: %s\n", QUERY_1));
      DsLogAdmin::Iterator_var iter_out;
      DsLogAdmin::RecordList_var rec_list =
        event_log->query (QUERY_LANG, QUERY_1, iter_out);

      CORBA::ULong j = 0;
      for (; j < rec_list->length();++j)  
#ifndef ACE_LACKS_LONGLONG_T
      ACE_DEBUG ((LM_DEBUG,
                  "id = %Q, time= %Q\n", 
                  rec_list[j].id, rec_list[j].time));
#else
      ACE_DEBUG ((LM_DEBUG,
                  "id = %u, time= %u\n",
                  rec_list[j].id.lo(), rec_list[j].time.lo()));
#endif

      ACE_DEBUG ((LM_DEBUG,
                  "Deleting records... \n"));

      retval = event_log->delete_records (QUERY_LANG, QUERY_2 ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      ACE_DEBUG ((LM_DEBUG,
                  "Calling EventLog::get_n_records...\n"));
#ifndef ACE_LACKS_LONGLONG_T
      retval = event_log->get_n_records (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;
#else
      retval = event_log->get_n_records (ACE_ENV_SINGLE_ARG_PARAMETER).lo();
      ACE_TRY_CHECK;
#endif

      ACE_DEBUG ((LM_DEBUG, "Number of records in Log after delete = %d \n",
                  retval));

      ACE_DEBUG ((LM_DEBUG, "Geting the current_size again...\n"));
#ifndef ACE_LACKS_LONGLONG_T
      retval = event_log->get_current_size (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;
#else
      retval = event_log->get_current_size (ACE_ENV_SINGLE_ARG_PARAMETER).lo();
      ACE_TRY_CHECK;
#endif

      ACE_DEBUG ((LM_DEBUG, "Size of data in Log = %d \n", retval));

     // Disconnect from the EC
      this->consumer_->disconnect_push_consumer (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;

      // Destroy the EC....
      //event_channel->destroy (ACE_ENV_SINGLE_ARG_PARAMETER);
      event_log->destroy (ACE_ENV_SINGLE_ARG_PARAMETER);
      ACE_TRY_CHECK;

      // Deactivate this object...
      PortableServer::ObjectId_var id =
        poa->servant_to_id (this ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      poa->deactivate_object (id.in () ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

      // Destroy the POA
      poa->destroy (1, 0 ACE_ENV_ARG_PARAMETER);
      ACE_TRY_CHECK;

    }
  ACE_CATCHANY
    {
      ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION, "Supplier::run");
      return 1;
    }
  ACE_ENDTRY;
  return 0;
}

void
Supplier::disconnect_push_supplier (ACE_ENV_SINGLE_ARG_DECL_NOT_USED)
    ACE_THROW_SPEC ((CORBA::SystemException))
{
}

// ****************************************************************

#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
#elif defined(ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */