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// $Id$
#include "orbsvcs/ESF/ESF_Proxy_Collection.h"
#include "Notify_Event.h"
#include "Notify_Event_Map.h"
#include "Notify_Factory.h"
#include "Notify_Collection.h"
#include "Notify_Event_Manager_Objects_Factory.h"
#include "Notify_Collection_Factory.h"
#if ! defined (__ACE_INLINE__)
#include "Notify_Event_Map.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID(Notify, Notify_Event_Map, "$Id$")
TAO_Notify_Event_Map::TAO_Notify_Event_Map (TAO_Notify_EMO_Factory* emo_factory)
:default_subscription_list_ (0),
subscription_change_listeners_ (0),
publication_change_listeners_ (0),
emo_factory_ (emo_factory),
collection_factory_ (TAO_Notify_Factory::get_collection_factory ())
{
}
TAO_Notify_Event_Map::~TAO_Notify_Event_Map ()
{
// delete all event listener lists in the event map.
EVENT_RECIPIENT_MAP::ITERATOR iterator (this->event_recipient_map_);
for (EVENT_RECIPIENT_MAP::ENTRY *entry = 0;
iterator.next (entry) != 0;
iterator.advance ())
{
delete entry->int_id_;
}
delete default_subscription_list_;
delete subscription_change_listeners_;
delete publication_change_listeners_;
}
void
TAO_Notify_Event_Map::init (ACE_ENV_SINGLE_ARG_DECL)
{
this->default_subscription_list_ =
this->collection_factory_->create_event_listener_list (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
// Create the default list of listeners.
this->subscription_change_listeners_
= this->collection_factory_->create_update_listener_list (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
this->publication_change_listeners_
= this->collection_factory_->create_update_listener_list (ACE_ENV_SINGLE_ARG_PARAMETER);
}
void
TAO_Notify_Event_Map::shutdown (ACE_ENV_SINGLE_ARG_DECL)
{
// Shutdown all event listener lists in the event map.
EVENT_RECIPIENT_MAP::ITERATOR iterator (this->event_recipient_map_);
for (EVENT_RECIPIENT_MAP::ENTRY *entry = 0;
iterator.next (entry) != 0;
iterator.advance ())
{
entry->int_id_->shutdown (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
}
default_subscription_list_->shutdown (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
subscription_change_listeners_->shutdown (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
publication_change_listeners_->shutdown (ACE_ENV_SINGLE_ARG_PARAMETER);
}
void
TAO_Notify_Event_Map::subscribe_for_events (TAO_Notify_EventListener* event_listener, TAO_Notify_EventType_List& update, const CosNotification::EventTypeSeq & added ACE_ENV_ARG_DECL)
{
TAO_Notify_EventListener_List* event_listener_list;
TAO_Notify_EventType event_type;
for (CORBA::ULong index = 0; index < added.length (); index++)
{
event_type = added[index];
#if 0
ACE_DEBUG ((LM_DEBUG, "subscribing %x for event: %s, %s\n",
event_listener,
event_type.event_type_.domain_name.in (),
event_type.event_type_.type_name.in ()));
#endif
if (event_type.is_special ())
event_listener_list = default_subscription_list_;
else if (this->event_recipient_map_.find (event_type,
event_listener_list) == -1)
{
// create the list.
TAO_Notify_EventListener_List* new_list =
this->collection_factory_->create_event_listener_list (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_CHECK;
// add the list to the recipient map.
this->event_recipient_map_.bind (event_type, new_list);
event_listener_list = new_list;
}
event_listener_list->connected (event_listener ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
// mirror changes in the subscription list
if (this->subscription_list_.insert (event_type) == 0)
update.insert (event_type);
}
}
void
TAO_Notify_Event_Map::unsubscribe_from_events (TAO_Notify_EventListener* event_listener, TAO_Notify_EventType_List &update, const CosNotification::EventTypeSeq & removed ACE_ENV_ARG_DECL)
{
TAO_Notify_EventListener_List* event_listener_list;
TAO_Notify_EventType event_type;
for (CORBA::ULong index = 0; index < removed.length (); index++)
{
event_type = removed[index];
// find out if there is a event listener list for this event type.
if (event_type.is_special ())
event_listener_list = this->default_subscription_list_;
else if (this->event_recipient_map_.find (event_type,
event_listener_list) == -1)
continue;
// remove <event_listener> from the list.
event_listener_list->disconnected (event_listener ACE_ENV_ARG_PARAMETER);
ACE_CHECK;
// If this was the last entry in the list then we should remove
// the corrsponding event_type from the recipient_map.
// However i'm going to leave the blank entries based on the assumption
// that a system will have a fixed set of event types.
// This way we save that cost of creating a new entry in the map and
// its corresponding listener list when an event type seen before
// shows up again.
// Later we could add logic to check at non-time-critical points, if
// the map has grown too big and prune it. (lazy evaluation).
// mirror changes in the subscription list
if (this->subscription_list_.remove (event_type) == 0)
update.insert (event_type); // modify the update list.
}
}
void
TAO_Notify_Event_Map::register_for_publication_updates (TAO_Notify_UpdateListener* update_listener ACE_ENV_ARG_DECL)
{
this->publication_change_listeners_->connected (update_listener ACE_ENV_ARG_PARAMETER);
}
void
TAO_Notify_Event_Map::register_for_subscription_updates (TAO_Notify_UpdateListener* update_listener ACE_ENV_ARG_DECL)
{
this->subscription_change_listeners_->connected (update_listener ACE_ENV_ARG_PARAMETER);
}
void
TAO_Notify_Event_Map:: unregister_from_subscription_updates (TAO_Notify_UpdateListener* update_listener ACE_ENV_ARG_DECL)
{
this->subscription_change_listeners_->disconnected (update_listener ACE_ENV_ARG_PARAMETER);
}
void
TAO_Notify_Event_Map::unregister_from_publication_updates (TAO_Notify_UpdateListener* update_listener ACE_ENV_ARG_DECL)
{
this->publication_change_listeners_->disconnected (update_listener ACE_ENV_ARG_PARAMETER);
}
CosNotification::EventTypeSeq*
TAO_Notify_Event_Map::obtain_offered_types (void)
{
CosNotification::EventTypeSeq* event_type_seq;
ACE_NEW_RETURN (event_type_seq,
CosNotification::EventTypeSeq(this->publication_list_.size ()),
0);
this->publication_list_.populate (*event_type_seq);
return event_type_seq;
}
CosNotification::EventTypeSeq*
TAO_Notify_Event_Map::obtain_subscription_types (void)
{
CosNotification::EventTypeSeq* event_type_seq;
ACE_NEW_RETURN (event_type_seq,
CosNotification::EventTypeSeq(this->subscription_list_.size ()),
0);
this->subscription_list_.populate (*event_type_seq);
return event_type_seq;
}
void
TAO_Notify_Event_Map::update_publication_list (const CosNotification::EventTypeSeq & added, const CosNotification::EventTypeSeq & removed, TAO_Notify_EventType_List &added_list, TAO_Notify_EventType_List &removed_list ACE_ENV_ARG_DECL_NOT_USED/*ACE_ENV_SINGLE_ARG_PARAMETER*/)
{
TAO_Notify_EventType event_type;
CORBA::ULong len = removed.length ();
CORBA::ULong i = 0 ;
for (; i < len; ++i)
{
event_type = removed[i];
if (this->publication_list_.remove (event_type) == 0)
{
removed_list.insert (event_type);
}
}
len = added.length ();
for (i = 0; i < len; i++)
{
event_type = added[i];
if (this->publication_list_.insert (event_type) == 0)
{
added_list.insert (event_type);
}
}
}
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