TAO/orbsvcs/examples/Log/RTEvent/RTEvent_Supplier.cpp

   1 #include "RTEvent_Supplier.h"
   2 #include "orbsvcs/RtecEventChannelAdminC.h"
   3 #include "orbsvcs/Event_Service_Constants.h"
   4 #include "ace/OS_main.h"
   5 #include "ace/OS_NS_unistd.h"
   6
   7 #define NAMING_SERVICE_NAME "NameService"
   8 #define EVENT_TLS_LOG_FACTORY_NAME "RTEventLogFactory"
   9 #define LOG_EVENT_COUNT 29
  10 #define QUERY_1 "id > 0"
  11 #define QUERY_2 "id >= 0"
  12 #define QUERY_LANG "TCL"
  13
  14 int
  15 ACE_TMAIN (int argc, ACE_TCHAR *argv[])
  16 {
  17   Supplier supplier;
  18
  19   return supplier.run (argc, argv);
  20 }
  21
  22 // ****************************************************************
  23
  24 Supplier::Supplier ()
  25 {
  26 }
  27
  28 int
  29 Supplier::run (int argc, ACE_TCHAR* argv[])
  30 {
  31   try
  32     {
  33       // ORB initialization boiler plate...
  34       CORBA::ORB_var orb =
  35         CORBA::ORB_init (argc, argv);
  36
  37
  38 /*
  39       if (argc <= 1)
  40         {
  41           ACE_ERROR ((LM_ERROR,
  42                       "Usage: Supplier <event_channel_ior>\n"));
  43           return 1;
  44         }
  45 */
  46
  47       // Do *NOT* make a copy because we don't want the ORB to outlive
  48       // the run() method.
  49      // this->orb_ = orb.in ();
  50
  51       CORBA::Object_var object =
  52         orb->resolve_initial_references ("RootPOA");
  53       PortableServer::POA_var poa =
  54         PortableServer::POA::_narrow (object.in ());
  55       PortableServer::POAManager_var poa_manager =
  56         poa->the_POAManager ();
  57       poa_manager->activate ();
  58
  59       // Obtain the event channel, we could use a naming service, a
  60       // command line argument or resolve_initial_references(), but
  61       // this is simpler...
  62 /*      object =
  63         orb->string_to_object (argv[1]);
  64
  65       RtecEventChannelAdmin::EventChannel_var event_channel =
  66         RtecEventChannelAdmin::EventChannel::_narrow (object.in ());
  67 */
  68
  69       CORBA::Object_var naming_obj =
  70         orb->resolve_initial_references (NAMING_SERVICE_NAME);
  71
  72       // Need to check return value for errors.
  73       if (CORBA::is_nil (naming_obj.in ()))
  74         throw CORBA::UNKNOWN ();
  75
  76       this->naming_context_ =
  77         CosNaming::NamingContext::_narrow (naming_obj.in ());
  78
  79
  80       CosNaming::Name name (1);
  81       name.length (1);
  82       name[0].id = CORBA::string_dup (EVENT_TLS_LOG_FACTORY_NAME);
  83
  84       CORBA::Object_var obj =
  85         this->naming_context_->resolve (name);
  86
  87       this->event_log_factory_ =
  88         RTEventLogAdmin::EventLogFactory::_narrow (obj.in ());
  89
  90       ACE_ASSERT (!CORBA::is_nil (this->event_log_factory_.in ()));
  91
  92
  93
  94
  95       // create a log..
  96
  97       ACE_DEBUG ((LM_DEBUG,
  98                   "\nCalling EventLogFactory::create...\n"));
  99
 100       DsLogAdmin::LogFullActionType logfullaction = DsLogAdmin::halt;
 101       DsLogAdmin::CapacityAlarmThresholdList threshold = 0;
 102       CORBA::ULongLong max_size = 0; // 0 means "infinite"
 103
 104       DsLogAdmin::LogId logid = 0;
 105
 106       RTEventLogAdmin::EventLog_var event_log =
 107       // DsLogAdmin::Log_var event_log =
 108         this->event_log_factory_->create (logfullaction,
 109                                           max_size,
 110                                           threshold,
 111                                           logid);
 112
 113
 114       ACE_DEBUG ((LM_DEBUG,
 115                   "Create returned logid = %d\n",logid));
 116
 117       // The canonical protocol to connect to the EC
 118       RtecEventChannelAdmin::SupplierAdmin_var supplier_admin =
 119         event_log->for_suppliers ();
 120
 121       this->consumer_ =
 122         supplier_admin->obtain_push_consumer ();
 123
 124       RtecEventComm::PushSupplier_var supplier =
 125         this->_this ();
 126
 127
 128       // Simple publication, but usually the helper classes in
 129       // $TAO_ROOT/orbsvcs/Event_Utils.h are a better way to do this.
 130       RtecEventChannelAdmin::SupplierQOS qos;
 131       qos.publications.length (1);
 132       RtecEventComm::EventHeader& h0 =
 133         qos.publications[0].event.header;
 134       h0.type   = ACE_ES_EVENT_UNDEFINED; // first free event type
 135       h0.source = 1;                      // first free event source
 136
 137       this->consumer_->connect_push_supplier (supplier.in (), qos);
 138
 139
 140       // Create some fake log events.
 141       // Push the events...
 142       ACE_Time_Value sleep_time (0, 10000); // 10 milliseconds
 143
 144       RtecEventComm::EventSet event (1);
 145       event.length (1);
 146       event[0].header.type   = ACE_ES_EVENT_UNDEFINED;
 147       event[0].header.source = 1;
 148       event[0].header.ttl    = 1;
 149
 150       for (int i = 0; i != LOG_EVENT_COUNT; ++i)
 151         {
 152           this->consumer_->push (event);
 153           ACE_OS::sleep (sleep_time);
 154         }
 155
 156       ACE_DEBUG ((LM_DEBUG,
 157                   "Writing %d records...\n", LOG_EVENT_COUNT));
 158
 159       ACE_DEBUG ((LM_DEBUG,
 160                   "Calling EventLog::get_n_records...\n"));
 161       CORBA::ULongLong retval = event_log->get_n_records ();
 162
 163       ACE_DEBUG ((LM_DEBUG, "Number of records in Log = %d\n", retval));
 164
 165       ACE_DEBUG ((LM_DEBUG,
 166                   "Calling EventLog::get_current_size...\n"));
 167       retval = event_log->get_current_size ();
 168
 169       ACE_DEBUG ((LM_DEBUG, "Size of data in Log = %d\n", retval));
 170
 171       ACE_DEBUG ((LM_DEBUG, "Querying the Log: %s\n", QUERY_1));
 172       DsLogAdmin::Iterator_var iter_out;
 173       DsLogAdmin::RecordList_var rec_list =
 174         event_log->query (QUERY_LANG, QUERY_1, iter_out);
 175
 176       CORBA::ULong j = 0;
 177       for (; j < rec_list->length();++j)
 178       ACE_DEBUG ((LM_DEBUG,
 179                   "id = %Q, time= %Q\n",
 180                   rec_list[j].id, rec_list[j].time));
 181
 182       ACE_DEBUG ((LM_DEBUG,
 183                   "Deleting records...\n"));
 184
 185       retval = event_log->delete_records (QUERY_LANG, QUERY_2);
 186
 187       ACE_DEBUG ((LM_DEBUG,
 188                   "Calling EventLog::get_n_records...\n"));
 189       retval = event_log->get_n_records ();
 190
 191       ACE_DEBUG ((LM_DEBUG, "Number of records in Log after delete = %d\n",
 192                   retval));
 193
 194       ACE_DEBUG ((LM_DEBUG, "Geting the current_size again...\n"));
 195       retval = event_log->get_current_size ();
 196
 197       ACE_DEBUG ((LM_DEBUG, "Size of data in Log = %d\n", retval));
 198
 199      // Disconnect from the EC
 200      this->consumer_->disconnect_push_consumer ();
 201
 202      // Destroy the EC....
 203      //event_channel->destroy ();
 204      event_log->destroy ();
 205
 206      // Deactivate this object...
 207      PortableServer::ObjectId_var id =
 208        poa->servant_to_id (this);
 209      poa->deactivate_object (id.in ());
 210
 211      // Destroy the POA
 212      poa->destroy (1, 0);
 213     }
 214   catch (const CORBA::Exception& ex)
 215     {
 216       ex._tao_print_exception ("Supplier::run");
 217       return 1;
 218     }
 219   return 0;
 220 }
 221
 222 void
 223 Supplier::disconnect_push_supplier ()
 224 {
 225 }
 226