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/* -*- C++ -*- */
// ============================================================================
// $Id$
//
// = LIBRARY
// orbsvcs
//
// = FILENAME
// Offer_Iterators_T.cpp
//
// = AUTHOR
// Marina Spivak <marina@cs.wustl.edu>
// Seth Widoff <sbw1@cs.wustl.edu>
// Irfan Pyarali <irfan@cs.wustl.edu>
// ============================================================================
#if !defined (TAO_OFFER_ITERATORS_T_C)
#define TAO_OFFER_ITERATORS_T_C
#include "Offer_Iterators_T.h"
template <class TRADER>
TAO_Register_Offer_Iterator<TRADER>::
TAO_Register_Offer_Iterator (TRADER &trader,
const TAO_Property_Filter& pfilter)
: TAO_Offer_Iterator (pfilter),
trader_ (trader)
{
}
template <class TRADER>
TAO_Register_Offer_Iterator<TRADER>::~TAO_Register_Offer_Iterator (void)
{
while (! this->offer_ids_.is_empty ())
{
CosTrading::OfferId offer_id = 0;
this->offer_ids_.dequeue_head (offer_id);
CORBA::string_free (offer_id);
}
}
template <class TRADER> void
TAO_Register_Offer_Iterator<TRADER>::
add_offer (CosTrading::OfferId id,
const CosTrading::Offer* offer)
{
this->offer_ids_.enqueue_tail (id);
}
template <class TRADER> CORBA::ULong
TAO_Register_Offer_Iterator<TRADER>::max_left (CORBA::Environment& _env)
TAO_THROW_SPEC ((CORBA::SystemException,
CosTrading::UnknownMaxLeft))
{
return this->offer_ids_.size ();
}
template <class TRADER> CORBA::Boolean
TAO_Register_Offer_Iterator<TRADER>::next_n (CORBA::ULong n,
CosTrading::OfferSeq_out offers,
CORBA::Environment& _env)
TAO_THROW_SPEC (CORBA::SystemException)
{
offers = new CosTrading::OfferSeq;
CORBA::ULong ret_offers = 0;
// Get service type map (monitor object).
TRADER::Offer_Database &offer_database =
this->trader_.offer_database ();
CORBA::ULong max_possible_offers_in_sequence =
(n < this->offer_ids_.size ()) ? n : this->offer_ids_.size ();
offers->length (max_possible_offers_in_sequence);
// While there are entries left and we haven't filled <offers>
// with requested number.
while (! this->offer_ids_.is_empty ()
&& n > ret_offers)
{
// If offer is found, put it into the sequence.
// remove this id irrespective of whether the offer is found
// or not.
CosTrading::OfferId id;
this->offer_ids_.dequeue_head (id);
TAO_TRY
{
CosTrading::OfferId_var offerid_var (id);
CosTrading::Offer* offer =
offer_database.lookup_offer (id, TAO_TRY_ENV);
TAO_CHECK_ENV;
if (offer != 0)
{
CosTrading::Offer& destination = (*offers)[ret_offers++];
this->pfilter_.filter_offer (*offer, destination);
}
}
TAO_CATCHANY {}
TAO_ENDTRY;
}
// Reset the length to the correct value
offers->length (ret_offers);
return (CORBA::Boolean)(ret_offers != 0);
}
#endif /* TAO_REGISTER_OFFER_ITERATOR_C */
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