static void subscribe(int domain_id, int sample_count)
{
// --- Register userGenerated datatype ---
DDS.DomainParticipantFactory.get_instance().
register_type_support(
ChatObjectTypeSupport.get_instance(),
"My::Type::Chat::Obj");
// --- Create participant --- //
/* To customize the participant QoS, use
* the configuration file USER_QOS_PROFILES.xml */
DDS.DomainParticipant participant =
DDS.DomainParticipantFactory.get_instance().
create_participant_from_config(
"MyParticipant_Library::MySubscriptionParticipant");
if (participant == null)
{
shutdown(participant);
throw new ApplicationException("create_participant error");
}
/* Create a data reader listener */
ChatObjectListener reader_listener =
new ChatObjectListener();
// --- Lookup reader --- //
/* To customize the data reader QoS, use
* the configuration file USER_QOS_PROFILES.xml */
DDS.DataReader reader = participant.lookup_datareader_by_name(
"MySubscriber::ChatObjectReader");
if (reader == null)
{
shutdown(participant);
reader_listener = null;
throw new ApplicationException("lookup_datareader error");
}
/* >>> Setup StatusCondition */
DDS.StatusCondition status_condition = reader.get_statuscondition();
if (status_condition.Equals(null))
{
Console.WriteLine("get_statuscondition error\n");
shutdown(participant);
throw new ApplicationException("get_statuscondition error");
}
try {
status_condition.set_enabled_statuses((DDS.StatusMask)DDS.StatusKind.DATA_AVAILABLE_STATUS);
}
catch {
Console.WriteLine("set_enabled_statuses error\n");
shutdown(participant);
throw new ApplicationException("set_enabled_statuses error");
}
/* <<< */
/* >>> Setup WaitSet */
DDS.WaitSet waitset = new DDS.WaitSet();
try {
waitset.attach_condition(status_condition);
}
catch {
// ... error
waitset.Dispose(); waitset = null;
shutdown(participant);
reader_listener.Dispose(); reader_listener = null;
return;
}
// holder for active conditions
DDS.ConditionSeq active_conditions = new DDS.ConditionSeq();
/* <<< */
// --- Wait for data --- //
/* Main loop */
const System.Int32 receive_period = 4000; // milliseconds
for (int count = 0;
(sample_count == 0) || (count < sample_count);
++count)
{
Console.WriteLine(
"ChatObject subscriber sleeping ...",
receive_period / 1000);
/* >>> Wait for condition to trigger */
try {
waitset.wait(active_conditions, DDS.Duration_t.DURATION_INFINITE);
reader_listener.on_data_available(reader);
}
catch {
}
/* <<< */
// System.Threading.Thread.Sleep(receive_period); /*>>><<<*/
}
// --- Shutdown --- //
/* Delete all entities */
waitset.Dispose(); waitset = null; /*>>><<<*/
shutdown(participant);
reader_listener = null;
}
static void subscribe(int domain_id, int sample_count)
{
// --- Create participant --- //
/* To customize the participant QoS, use
* the configuration file USER_QOS_PROFILES.xml */
DDS.DomainParticipant participant =
DDS.DomainParticipantFactory.get_instance().create_participant(
domain_id,
DDS.DomainParticipantFactory.PARTICIPANT_QOS_DEFAULT,
null /* listener */,
DDS.StatusMask.STATUS_MASK_NONE);
if (participant == null)
{
shutdown(participant);
throw new ApplicationException("create_participant error");
}
// --- Create subscriber --- //
/* To customize the subscriber QoS, use
* the configuration file USER_QOS_PROFILES.xml */
DDS.Subscriber subscriber = participant.create_subscriber(
DDS.DomainParticipant.SUBSCRIBER_QOS_DEFAULT,
null /* listener */,
DDS.StatusMask.STATUS_MASK_NONE);
if (subscriber == null)
{
shutdown(participant);
throw new ApplicationException("create_subscriber error");
}
// --- Create topic --- //
/* Register the type before creating the topic */
System.String type_name = ChatObjectTypeSupport.get_type_name();
try {
ChatObjectTypeSupport.register_type(
participant, type_name);
}
catch (DDS.Exception e) {
Console.WriteLine("register_type error {0}", e);
shutdown(participant);
throw e;
}
/* To customize the topic QoS, use
* the configuration file USER_QOS_PROFILES.xml */
DDS.Topic topic = participant.create_topic(
My.CHAT_TOPIC_NAME.VALUE, /*>>><<<*/
type_name,
DDS.DomainParticipant.TOPIC_QOS_DEFAULT,
null /* listener */,
DDS.StatusMask.STATUS_MASK_NONE);
if (topic == null)
{
shutdown(participant);
throw new ApplicationException("create_topic error");
}
/* >>> Create ContentFiltered Topic */
DDS.StringWrapper[] cft_param_list = new DDS.StringWrapper[] { "'Rajive'", "'Shannon'", "'Jaromy'" };
DDS.StringSeq cft_parameters = new DDS.StringSeq(3);
cft_parameters.from_array(cft_param_list);
DDS.ContentFilteredTopic cft = participant.create_contentfilteredtopic("Chat/filtered",
topic, "(id = %0 OR id = %1 OR id = %2)",
cft_parameters);
if (cft == null)
{
Console.WriteLine("create_contentfilteredtopic error\n");
shutdown(participant);
throw new ApplicationException("create_contentfilteredtopic error");
}
/* <<< */
// --- Create reader --- //
/* Create a data reader listener */
ChatObjectListener reader_listener =
new ChatObjectListener();
/* To customize the data reader QoS, use
* the configuration file USER_QOS_PROFILES.xml */
DDS.DataReader reader = subscriber.create_datareader(
cft, /*>>><<<*/
DDS.Subscriber.DATAREADER_QOS_DEFAULT,
null, /*>>><<<*/
DDS.StatusMask.STATUS_MASK_NONE); /*>>><<<*/
if (reader == null)
{
shutdown(participant);
reader_listener = null;
throw new ApplicationException("create_datareader error");
}
/* >>> Setup StatusCondition */
DDS.StatusCondition status_condition = reader.get_statuscondition();
if (status_condition.Equals(null))
{
Console.WriteLine("get_statuscondition error\n");
shutdown(participant);
throw new ApplicationException("get_statuscondition error");
}
try {
status_condition.set_enabled_statuses((DDS.StatusMask)DDS.StatusKind.DATA_AVAILABLE_STATUS);
}
catch {
Console.WriteLine("set_enabled_statuses error\n");
shutdown(participant);
throw new ApplicationException("set_enabled_statuses error");
}
/* <<< */
/* >>> Setup WaitSet */
DDS.WaitSet waitset = new DDS.WaitSet();
try {
waitset.attach_condition(status_condition);
}
catch {
// ... error
waitset.Dispose(); waitset = null;
shutdown(participant);
reader_listener.Dispose(); reader_listener = null;
return;
}
// holder for active conditions
DDS.ConditionSeq active_conditions = new DDS.ConditionSeq();
/* <<< */
// --- Wait for data --- //
/* Main loop */
const System.Int32 receive_period = 4000; // milliseconds
for (int count = 0;
(sample_count == 0) || (count < sample_count);
++count)
{
Console.WriteLine(
"ChatObject subscriber sleeping ...",
receive_period / 1000);
/* >>> Wait */
/* Wait for condition to trigger */
try {
waitset.wait(active_conditions, DDS.Duration_t.DURATION_INFINITE);
reader_listener.on_data_available(reader);
}
catch {
}
/* <<< */
// System.Threading.Thread.Sleep(receive_period); /*>>><<<*/
}
// --- Shutdown --- //
/* Delete all entities */
waitset.Dispose(); waitset = null; /*>>><<<*/
shutdown(participant);
reader_listener = null;
}