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// $Id$
#include "dds4ccm/impl/ndds/Utils.h"
#include "dds4ccm/impl/ndds/DataReader.h"
#include "dds4ccm/impl/logger/Log_Macros.h"
#include "dds4ccm/impl/ndds/DataReaderHandler_T.h"
#include "tao/ORB_Core.h"
#include <vector>
template <typename DDS_TYPE, typename CCM_TYPE>
CIAO::DDS4CCM::DataReaderStateListener_T<DDS_TYPE, CCM_TYPE>::DataReaderStateListener_T (
typename CCM_TYPE::statelistener_type::_ptr_type listener,
::CCM_DDS::PortStatusListener_ptr port_status_listener,
::CCM_DDS::StateListenerControl_ptr control,
ACE_Reactor* reactor)
: PortStatusListener_T <DDS_TYPE, CCM_TYPE> (port_status_listener, reactor) ,
listener_ (CCM_TYPE::statelistener_type::_duplicate (listener)),
control_ (::CCM_DDS::StateListenerControl::_duplicate (control))
{
DDS4CCM_TRACE ("CIAO::DDS4CCM::DataReaderStateListener_T::DataReaderStateListener_T");
}
// Implementation skeleton destructor
template <typename DDS_TYPE, typename CCM_TYPE>
CIAO::DDS4CCM::DataReaderStateListener_T<DDS_TYPE, CCM_TYPE>::~DataReaderStateListener_T (void)
{
DDS4CCM_TRACE ("CIAO::DDS4CCM::DataReaderStateListener_T::~DataReaderStateListener_T");
}
template <typename DDS_TYPE, typename CCM_TYPE>
void
CIAO::DDS4CCM::DataReaderStateListener_T<DDS_TYPE, CCM_TYPE>::on_data_available(::DDS::DataReader_ptr rdr)
{
DDS4CCM_TRACE ("CIAO::DDS4CCM::DataReaderStateListener_T::on_data_available");
if (CORBA::is_nil (this->control_.in ()) || this->control_->mode () == ::CCM_DDS::NOT_ENABLED)
return;
else
{
if (this->reactor_)
{
drsh* rh = 0;
ACE_NEW (rh, drsh (this, rdr));
ACE_Event_Handler_var safe_handler (rh);
if (this->reactor_->notify (rh) != 0)
{
DDS4CCM_ERROR (1, (LM_ERROR, ACE_TEXT ("DataReaderStateHandler_T::failed to use reactor.\n")));
}
}
else
{
this->on_data_available_i (rdr);
}
}
}
template <typename DDS_TYPE, typename CCM_TYPE>
void
CIAO::DDS4CCM::DataReaderStateListener_T<DDS_TYPE, CCM_TYPE>::on_data_available_i (::DDS::DataReader_ptr rdr)
{
DDS4CCM_TRACE ("CIAO::DDS4CCM::DataReaderStateListener_T::on_data_available_i");
if (CORBA::is_nil (this->control_.in ()) || this->control_->mode () == ::CCM_DDS::NOT_ENABLED)
return;
::CIAO::DDS4CCM::CCM_DDS_DataReader_i* rd =
dynamic_cast < ::CIAO::DDS4CCM::CCM_DDS_DataReader_i*>(rdr);
if (!rd)
{
/* In this specific case, this will never fail */
DDS4CCM_ERROR (1, (LM_ERROR, ACE_TEXT ("DataReaderStateListener_T::dynamic_cast failed.\n")));
return;
}
typename DDS_TYPE::data_reader * reader =
dynamic_cast< typename DDS_TYPE::data_reader * > ((rd->get_impl ()));
if (!reader)
{
/* In this specific case, this will never fail */
DDS4CCM_ERROR (1, (LM_ERROR, ACE_TEXT ("DataReaderStateListener_T::narrow failed.\n")));
return;
}
try
{
typename DDS_TYPE::dds_seq_type data;
DDS_SampleInfoSeq sample_info;
::DDS_Long max_samples = 0;
this->control_->mode () == ::CCM_DDS::ONE_BY_ONE
? max_samples = DDS_LENGTH_UNLIMITED
: this->control_->max_delivered_data() == 0
? max_samples = DDS_LENGTH_UNLIMITED
: max_samples = this->control_->max_delivered_data ();
::DDS::ReturnCode_t const result = reader->take (
data,
sample_info,
max_samples,
DDS_NOT_READ_SAMPLE_STATE,
DDS_NEW_VIEW_STATE | DDS_NOT_NEW_VIEW_STATE,
DDS_ANY_INSTANCE_STATE);
if (result == DDS_RETCODE_NO_DATA)
return;
else if (result != DDS_RETCODE_OK)
{
DDS4CCM_ERROR (1, (LM_ERROR, ACE_TEXT ("Unable to take data from data reader, error %d.\n"), result));
}
if (this->control_->mode () == ::CCM_DDS::ONE_BY_ONE)
{
for (::DDS_Long i = 0; i < data.length (); ++i)
{
// sample data may not be valid anymore when
// deleted so don't check the valid_data flag
// here.
if (sample_info[i].instance_state ==
::DDS_NOT_ALIVE_DISPOSED_INSTANCE_STATE)
{
::CCM_DDS::ReadInfo readinfo;
readinfo <<= sample_info[i];
this->listener_->on_deletion (data[i], readinfo);
}
if (sample_info[i].valid_data)
{
if (sample_info[i].view_state ==
::DDS_NEW_VIEW_STATE)
{
::CCM_DDS::ReadInfo readinfo;
readinfo <<= sample_info[i];
this->listener_->on_creation (data[i], readinfo);
}
else
{
::CCM_DDS::ReadInfo info;
info <<= sample_info[i];
this->listener_->on_one_update (data[i], info);
}
}
}
}
else if (this->control_->mode () == ::CCM_DDS::MANY_BY_MANY)
{
typedef std::vector<DDS_Long> Updates;
Updates updates;
CORBA::ULong nr_of_updates = 0;
for (::DDS_Long i = 0 ; i < sample_info.length(); i++)
{
if ((sample_info[i].valid_data &&
sample_info[i].view_state == ::DDS_NEW_VIEW_STATE) ||
sample_info[i].instance_state == ::DDS_NOT_ALIVE_DISPOSED_INSTANCE_STATE)
{
// sample_new or sample_delete found -> first send out the updated
// samples in one go
typename CCM_TYPE::seq_type::_var_type inst_seq = new typename CCM_TYPE::seq_type;
::CCM_DDS::ReadInfoSeq_var infoseq = new ::CCM_DDS::ReadInfoSeq;
infoseq->length (nr_of_updates);
inst_seq->length (nr_of_updates);
CORBA::ULong ix = 0;
for(Updates::iterator iter = updates.begin();
iter != updates.end();
++iter)
{
infoseq[ix] <<= sample_info[*iter];
inst_seq[ix] = data[*iter];
++ix;
}
this->listener_->on_many_updates (inst_seq, infoseq);
// now invoke on_creation or on_deletion
if (sample_info[i].valid_data &&
sample_info[i].view_state == ::DDS_NEW_VIEW_STATE)
{
::CCM_DDS::ReadInfo readinfo;
readinfo <<= sample_info[i];
this->listener_->on_creation (data[i], readinfo);
}
else if (sample_info[i].instance_state == ::DDS_NOT_ALIVE_DISPOSED_INSTANCE_STATE)
{
::CCM_DDS::ReadInfo readinfo;
readinfo <<= sample_info[i];
this->listener_->on_deletion (data[i], readinfo);
}
//clean up
updates.clear ();
nr_of_updates = 0;
}
else if (sample_info[i].valid_data)
{
++nr_of_updates;
updates.push_back (i);
}
}
//send the latest updates.
if (updates.size () > 0)
{
typename CCM_TYPE::seq_type::_var_type inst_seq = new typename CCM_TYPE::seq_type;
::CCM_DDS::ReadInfoSeq_var infoseq = new ::CCM_DDS::ReadInfoSeq;
infoseq->length (nr_of_updates);
inst_seq->length (nr_of_updates);
CORBA::ULong ix = 0;
for(Updates::iterator iter = updates.begin();
iter != updates.end();
++iter)
{
infoseq[ix] <<= sample_info[*iter];
inst_seq[ix] = data[*iter];
++ix;
}
this->listener_->on_many_updates (inst_seq, infoseq);
}
// Return the loan
reader->return_loan(data, sample_info);
}
}
catch (...)
{
}
}
template <typename DDS_TYPE, typename CCM_TYPE>
::DDS::StatusMask
CIAO::DDS4CCM::DataReaderStateListener_T<DDS_TYPE, CCM_TYPE>::get_mask (
typename CCM_TYPE::statelistener_type::_ptr_type listener)
{
if (!CORBA::is_nil (listener) || CIAO_debug_level >= 10)
{
return ::DDS::DATA_AVAILABLE_STATUS |
::DDS::REQUESTED_DEADLINE_MISSED_STATUS |
::DDS::SAMPLE_LOST_STATUS;
}
else
{
return 0;
}
}
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