FilterAdmin interface methods implementation. More...

#include <FilterAdmin.h>

Inheritance diagram for TAO_Notify_FilterAdmin:

Collaboration diagram for TAO_Notify_FilterAdmin:

Public Member Functions
	TAO_Notify_FilterAdmin (void)
	Constructor.
virtual	~TAO_Notify_FilterAdmin (void)
	Destructor.
CORBA::Boolean	match (const TAO_Notify_Event::Ptr &event)
	See if any of the filters match.
CORBA::Boolean	match (const TAO_Notify_Event *event)
	See if any of the filters match.
virtual CosNotifyFilter::FilterID	add_filter (CosNotifyFilter::Filter_ptr new_filter)
virtual void	remove_filter (CosNotifyFilter::FilterID filter)
virtual CosNotifyFilter::Filter_ptr	get_filter (CosNotifyFilter::FilterID filter)
virtual CosNotifyFilter::FilterIDSeq *	get_all_filters (void)
virtual void	remove_all_filters (void)
virtual void	save_persistent (TAO_Notify::Topology_Saver &saver)
virtual TAO_Notify::Topology_Object *	load_child (const ACE_CString &type, CORBA::Long id, const TAO_Notify::NVPList &attrs)
	Create a child of the appropriate type and return it.
void	event_channel (TAO_Notify_EventChannel *ec)
Private Types
typedef ACE_Hash_Map_Manager < CosNotifyFilter::FilterID, CosNotifyFilter::Filter_var, ACE_SYNCH_NULL_MUTEX >	FILTER_LIST
Private Member Functions
virtual void	release (void)
Private Attributes
TAO_SYNCH_MUTEX	lock_
	Mutex to serialize access to data members.
FILTER_LIST	filter_list_
	List of filters.
TAO_Notify_ID_Factory	filter_ids_
	Id generator for proxy suppliers.
TAO_Notify_EventChannel::Ptr	ec_

Detailed Description

FilterAdmin interface methods implementation.

Definition at line 39 of file FilterAdmin.h.

Member Typedef Documentation

typedef ACE_Hash_Map_Manager<CosNotifyFilter::FilterID, CosNotifyFilter::Filter_var, ACE_SYNCH_NULL_MUTEX> TAO_Notify_FilterAdmin::FILTER_LIST [private]

Definition at line 78 of file FilterAdmin.h.

Constructor & Destructor Documentation

TAO_Notify_FilterAdmin::TAO_Notify_FilterAdmin ( void )

Constructor.

Definition at line 20 of file FilterAdmin.cpp.

{
}

TAO_Notify_FilterAdmin::~TAO_Notify_FilterAdmin ( void ) [virtual]

Destructor.

Definition at line 26 of file FilterAdmin.cpp.

{
}

Member Function Documentation

CosNotifyFilter::FilterID TAO_Notify_FilterAdmin::add_filter ( CosNotifyFilter::Filter_ptr new_filter ) [virtual]

Definition at line 31 of file FilterAdmin.cpp.

{
  if (CORBA::is_nil (new_filter))
    throw CORBA::BAD_PARAM ();

  ACE_GUARD_THROW_EX (TAO_SYNCH_MUTEX, ace_mon, this->lock_,
                      CORBA::INTERNAL ());

  CosNotifyFilter::FilterID new_id = this->filter_ids_.id ();

  CosNotifyFilter::Filter_var new_filter_var =
    CosNotifyFilter::Filter::_duplicate (new_filter);

  if (this->filter_list_.bind (new_id, new_filter_var) == -1)
      throw CORBA::INTERNAL ();
  else
    return new_id;
}

void TAO_Notify_FilterAdmin::event_channel ( TAO_Notify_EventChannel * ec )

Definition at line 185 of file FilterAdmin.cpp.

{
  this->ec_.reset (ec);
}

CosNotifyFilter::FilterIDSeq * TAO_Notify_FilterAdmin::get_all_filters ( void ) [virtual]

Definition at line 76 of file FilterAdmin.cpp.

{
  ACE_GUARD_THROW_EX (TAO_SYNCH_MUTEX, ace_mon, this->lock_,
                      CORBA::INTERNAL ());

  // Figure out the length of the list.
  size_t len = this->filter_list_.current_size ();

  CosNotifyFilter::FilterIDSeq* list_ptr = 0;

  // Allocate the list of <len> length.
  ACE_NEW_THROW_EX (list_ptr,
                    CosNotifyFilter::FilterIDSeq,
                    CORBA::NO_MEMORY ());

  CosNotifyFilter::FilterIDSeq_var list (list_ptr);

  list->length (static_cast<CORBA::ULong> (len));

  FILTER_LIST::ITERATOR iter (this->filter_list_);
  FILTER_LIST::ENTRY *entry;

  u_int index;

  for (index = 0; iter.next (entry) != 0; iter.advance (), ++index)
    {
      list[index] = entry->ext_id_;
    }

  return list._retn ();
}

CosNotifyFilter::Filter_ptr TAO_Notify_FilterAdmin::get_filter ( CosNotifyFilter::FilterID filter ) [virtual]

Definition at line 61 of file FilterAdmin.cpp.

{
  ACE_GUARD_THROW_EX (TAO_SYNCH_MUTEX, ace_mon, this->lock_,
                      CORBA::INTERNAL ());

  CosNotifyFilter::Filter_var filter_var;

  if (this->filter_list_.find (filter_id,
                               filter_var) == -1)
    throw CosNotifyFilter::FilterNotFound ();

  return filter_var._retn ();
}

TAO_Notify::Topology_Object * TAO_Notify_FilterAdmin::load_child	(	const ACE_CString &	type,
		CORBA::Long	id,
		const TAO_Notify::NVPList &	attrs
	)			`[virtual]`

Create a child of the appropriate type and return it.

Use "type" as passed in to determine what kind of child (supporting the Topology_Object interface) to create and return. Inform it of its new ID.

Reimplemented from TAO_Notify::Topology_Object.

Definition at line 157 of file FilterAdmin.cpp.

{
  if (type == "filter")
  {
   TAO_Notify_Object::ID mapid = 0;
   attrs.load("MapId", mapid);

   TAO_Notify_FilterFactory* factory = ec_->default_filter_factory_servant ();
   CosNotifyFilter::Filter_var filter = factory->get_filter (mapid);
 
    if (! CORBA::is_nil(filter.in()))
    {
      this->filter_ids_.set_last_used(id);
      if (this->filter_list_.bind (id, filter) != 0)
        throw CORBA::INTERNAL ();
    }
  }
  return this;
}

CORBA::Boolean TAO_Notify_FilterAdmin::match ( const TAO_Notify_Event * event )

See if any of the filters match.

Definition at line 8 of file FilterAdmin.inl.

{
  ACE_GUARD_THROW_EX (TAO_SYNCH_MUTEX, ace_mon, this->lock_,
                      CORBA::INTERNAL ());

  // If no filter is active, match is successfull.
  if (this->filter_list_.current_size () == 0)
    return 1;

  // We want to return true if atleast one constraint matches.
  FILTER_LIST::ITERATOR iter (this->filter_list_);
  FILTER_LIST::ENTRY *entry = 0;
  CORBA::Boolean ret_val = 0;

  for (; iter.next (entry); iter.advance ())
    {
      ret_val = event->do_match (entry->int_id_.in ());

      if (ret_val == 1)
        return 1;
    }

  return 0;
}

CORBA::Boolean TAO_Notify_FilterAdmin::match ( const TAO_Notify_Event::Ptr & event )

See if any of the filters match.

void TAO_Notify_FilterAdmin::release ( void ) [private, virtual]

Definition at line 179 of file FilterAdmin.cpp.

{
  delete this;
}

void TAO_Notify_FilterAdmin::remove_all_filters ( void ) [virtual]

Definition at line 109 of file FilterAdmin.cpp.

{
  ACE_GUARD_THROW_EX (TAO_SYNCH_MUTEX, ace_mon, this->lock_,
                      CORBA::INTERNAL ());

  this->filter_list_.unbind_all ();
}

void TAO_Notify_FilterAdmin::remove_filter ( CosNotifyFilter::FilterID filter ) [virtual]

Definition at line 51 of file FilterAdmin.cpp.

{
  ACE_GUARD_THROW_EX (TAO_SYNCH_MUTEX, ace_mon, this->lock_,
                      CORBA::INTERNAL ());

  if (this->filter_list_.unbind (filter_id) == -1)
    throw CosNotifyFilter::FilterNotFound ();
}

void TAO_Notify_FilterAdmin::save_persistent ( TAO_Notify::Topology_Saver & saver ) [virtual]

Save our state to a Topology_Saver.

Use the methods of a Topology_Saver to store all information we want persisted. This function is called by our parent, which gives us a saver to use. In turn, we must call this function on all of our children. The implementation should look like: bool change = this->self_changed_; this->self_changed_ = false; this->children_changed_ = false; if (is_persistent ()) { bool want_all_children = saver.begin_object( this->id(), type, attrs, change); for all children { if (want_all_children || child.is_changed()) { child.save_persistent(saver); } } for all deleted children { saver.delete_child(child_type, child_id); } saver.end_object(this->id(), type); )

Implements TAO_Notify::Topology_Savable.

Definition at line 118 of file FilterAdmin.cpp.

{
  if (this->filter_list_.current_size() == 0)
    return;

  bool changed = true;

  TAO_Notify::NVPList attrs;
  bool want_children = saver.begin_object(0, "filter_admin", attrs, changed);
  if (want_children)
  {
    FILTER_LIST::ITERATOR iter (this->filter_list_);
    FILTER_LIST::ENTRY* entry;

    TAO_Notify_Properties* properties = TAO_Notify_PROPERTIES::instance();
    CORBA::ORB_var orb = properties->orb();
    ACE_ASSERT(! CORBA::is_nil(orb.in()));

    for (; iter.next(entry) != 0; iter.advance())
    {
      TAO_Notify::NVPList fattrs;
      CORBA::Long id = entry->ext_id_;

      //TBD: this presume the filter always collocated.
      //otherwise we need modify the filter interface to add get_filter_id()

      TAO_Notify_FilterFactory* factory = ec_->default_filter_factory_servant ();
      TAO_Notify_Object::ID mapid = factory->get_filter_id (entry->int_id_.in ());

      fattrs.push_back(TAO_Notify::NVP("MapId", mapid));
      saver.begin_object(id, "filter", fattrs, changed);
      saver.end_object(id, "filter");
    }
  }

  saver.end_object(0, "filter_admin");
}