void OwnershipDataPublisher::initPublisher(string pub, DDS::Long strength)
{
char partition_name[] = "Ownership example";
mgr.createParticipant(partition_name);
//create type
StockTypeSupport_var st = new StockTypeSupport();
mgr.registerType(st.in());
//create Topic
char topic_name[] = "OwnershipStockTracker";
mgr.createTopic(topic_name);
//create Publisher
mgr.createPublisher();
// create DataWriter
mgr.createWriter(strength);
dWriter = mgr.getWriter();
OwnershipDataDataWriter = StockDataWriter::_narrow(dWriter.in());
m_instance = new Stock();
m_instance->ticker = DDS::string_dup("MSFT");
m_instance->price = 0.0;
m_instance->publisher = DDS::string_dup(pub.c_str());
m_instance->strength = strength;
//cout <<m_instance->ticker<<"/"<<m_instance->price<<"/"<<m_instance->publisher<< endl;
userHandle = OwnershipDataDataWriter->register_instance(*m_instance);
}
int main(int argc, char *argv[])
{
os_time delay_100ms = { 0, 100000000 };
DDSEntityManager *mgr = new DDSEntityManager();
// create domain participant
char partition_name[] = "ContentFilteredTopic example";
mgr->createParticipant(partition_name);
StockTypeSupport_var st = new StockTypeSupport();
mgr->registerType(st.in());
//create Topic
char topic_name[] = "StockTrackerExclusive";
mgr->createTopic(topic_name);
//create Publisher
mgr->createPublisher();
// create DataWriter
mgr->createWriter();
DataWriter_ptr dWriter = mgr->getWriter();
StockDataWriter_var ContentFilteredTopicDataWriter = StockDataWriter::_narrow(dWriter);
Stock geQuote;
Stock msftQuote;
geQuote.ticker = CORBA::string_dup("GE");
geQuote.price = 12.00f;
msftQuote.ticker = CORBA::string_dup("MSFT");
msftQuote.price = 25.00f;
InstanceHandle_t geHandle = ContentFilteredTopicDataWriter->register_instance(geQuote);
InstanceHandle_t msftHandle = ContentFilteredTopicDataWriter->register_instance(msftQuote);
// Publish Events
ReturnCode_t status;
// update ContentFilteredTopicData price every second
for (int x = 0; x < 20; x++)
{
geQuote.price = geQuote.price + 0.5;
msftQuote.price = msftQuote.price + 1.5;
printf("=== [ContentFilteredTopicDataPublisher] sends 2 stockQuotes : (GE, %.1f) (MSFT, %.1f)\n", geQuote.price, msftQuote.price);
status = ContentFilteredTopicDataWriter->write(geQuote, geHandle);
checkStatus(status, "StockDataWriter::write");
status = ContentFilteredTopicDataWriter->write(msftQuote, msftHandle);
checkStatus(status, "StockDataWriter::write");
os_nanoSleep(delay_100ms);
}
// signal to terminate
geQuote.price = - 1;
msftQuote.price = - 1;
ContentFilteredTopicDataWriter->write(geQuote, geHandle);
ContentFilteredTopicDataWriter->write(msftQuote, msftHandle);
cout << "Market Closed" << endl;
/* Unregister the instances */
ContentFilteredTopicDataWriter->unregister_instance(geQuote, geHandle);
ContentFilteredTopicDataWriter->unregister_instance(msftQuote, msftHandle);
/* Remove the DataWriters */
mgr->deleteWriter(ContentFilteredTopicDataWriter.in ());
/* Remove the Publisher. */
mgr->deletePublisher();
/* Remove the Topics. */
mgr->deleteTopic();
/* Remove Participant. */
mgr->deleteParticipant();
delete mgr;
return 0;
}
int main(int argc, char *argv[])
{
// usage : ContentFilteredTopicDataSubscriber <subscription_string>
const char *ContentFilteredTopicDataToSubscribe;
os_time delay_200ms = { 0, 200000000 };
if (argc > 1)
{
ContentFilteredTopicDataToSubscribe = argv[1];
}
else
{
cerr <<
"*** [ContentFilteredTopicDataSubscriber] Subscription string not specified" <<
endl;
cerr << "*** usage : ContentFilteredTopicDataSubscriber <subscription_string>" <<
endl;
return - 1;
}
StockSeq msgList;
SampleInfoSeq infoSeq;
DDSEntityManager *mgr = new DDSEntityManager();
// create domain participant
char partition_name[] = "ContentFilteredTopic example";
mgr->createParticipant(partition_name);
//create type
StockTypeSupport_var st = new StockTypeSupport();
mgr->registerType(st.in());
//create Topic
char topic_name[] = "StockTrackerExclusive";
mgr->createTopic(topic_name);
//create Subscriber
mgr->createSubscriber();
char sTopicName[] = "MyStockTopic";
// create subscription filter
ostringstream buf;
buf << "ticker = '" << ContentFilteredTopicDataToSubscribe << "'";
CORBA::String_var sFilter = CORBA::string_dup(buf.str().c_str());
// Filter expr
StringSeq sSeqExpr;
sSeqExpr.length(0);
// create topic
mgr->createContentFilteredTopic(sTopicName, sFilter.in(), sSeqExpr);
// create Filtered DataReader
cout << "=== [ContentFilteredTopicDataSubscriber] Subscription filter : " << sFilter
<< endl;
mgr->createReader(true);
DataReader_ptr dreader = mgr->getReader();
StockDataReader_var ContentFilteredTopicDataReader = StockDataReader::_narrow(dreader);
checkHandle(ContentFilteredTopicDataReader, "StockDataReader::_narrow");
cout << "=== [ContentFilteredTopicDataSubscriber] Ready ..." << endl;
bool closed = false;
ReturnCode_t status = - 1;
int count = 0;
while (!closed && count < 1500) // We dont want the example to run indefinitely
{
status = ContentFilteredTopicDataReader->take(msgList, infoSeq, LENGTH_UNLIMITED,
ANY_SAMPLE_STATE, ANY_VIEW_STATE, ANY_INSTANCE_STATE);
checkStatus(status, "ContentFilteredTopicDataDataReader::take");
for (CORBA::ULong i = 0; i < msgList.length(); i++)
{
if(infoSeq[i].valid_data)
{
if (msgList[i].price == - 1.0f)
{
closed = true;
break;
}
}
cout << "=== [ContentFilteredTopicDataSubscriber] receives stockQuote : ("<< msgList[i].ticker << ", " << msgList[i].price << ')'<< endl;
}
status = ContentFilteredTopicDataReader->return_loan(msgList, infoSeq);
checkStatus(status, "StockDataReader::return_loan");
os_nanoSleep(delay_200ms);
++count;
}
cout << "=== [ContentFilteredTopicDataSubscriber] Market Closed" << endl;
//cleanup
mgr->deleteReader(ContentFilteredTopicDataReader.in ());
mgr->deleteSubscriber();
mgr->deleteFilteredTopic();
mgr->deleteTopic();
mgr->deleteParticipant();
delete mgr;
return 0;
}
int main(int argc, char *argv[])
{
os_time delay_2ms = { 0, 2000000 };
os_time delay_200ms = { 0, 200000000 };
StockSeq msgList;
SampleInfoSeq infoSeq;
DDSEntityManager *mgr = new DDSEntityManager();
// create domain participant
char partition_name[] = "Ownership example";
mgr->createParticipant(partition_name);
//create type
StockTypeSupport_var st = new StockTypeSupport();
mgr->registerType(st.in());
//create Topic
char topic_name[] = "StockTrackerExclusive";
mgr->createTopic(topic_name);
//create Subscriber
mgr->createSubscriber();
// create DataReader
mgr->createReader();
DataReader_ptr dreader = mgr->getReader();
StockDataReader_var OwnershipDataReader = StockDataReader::_narrow(dreader);
checkHandle(OwnershipDataReader, "StockDataReader::_narrow");
cout << "===[Subscriber] Ready ..." << endl;
cout << " Ticker Price Publisher ownership strength" << endl;
bool closed = false;
ReturnCode_t status = - 1;
int count = 0;
while (!closed && count < 1500 )
{
status = OwnershipDataReader->take(msgList, infoSeq, LENGTH_UNLIMITED,
ANY_SAMPLE_STATE, ANY_VIEW_STATE, ANY_INSTANCE_STATE);
checkStatus(status, "OwnershipDataDataReader::take");
if (msgList.length() > 0)
{
for (CORBA::ULong i = 0; i < msgList.length(); i++)
{
if (infoSeq[i].valid_data)
{
if (msgList[i].price < - 0.0f)
{
closed = true;
break;
}
printf(" %s %8.1f %s %d\n", msgList[i].ticker.in(),
msgList[i].price, msgList[i].publisher.in(), msgList[i].strength);
}
}
status = OwnershipDataReader->return_loan(msgList, infoSeq);
checkStatus(status, "StockDataReader::return_loan");
os_nanoSleep(delay_2ms);
}
++count;
os_nanoSleep(delay_200ms);
}
cout << "===[Subscriber] Market Closed" << endl;
//cleanup
mgr->deleteReader(OwnershipDataReader.in ());
mgr->deleteSubscriber();
mgr->deleteTopic();
mgr->deleteParticipant();
delete mgr;
return 0;
}
int main(int argc, char *argv[])
{
os_time delay_100ms = { 0, 100000000 };
DDSEntityManager *mgr = new DDSEntityManager();
// create domain participant
char partition_name[] = "QueryCondition example";
mgr->createParticipant(partition_name);
StockTypeSupport_var st = new StockTypeSupport();
mgr->registerType(st.in());
//create Topic
char topic_name[] = "StockTrackerExclusive";
mgr->createTopic(topic_name);
//create Publisher
mgr->createPublisher();
// create DataWriter
mgr->createWriter();
DataWriter_ptr dWriter = mgr->getWriter();
StockDataWriter_var QueryConditionDataWriter = StockDataWriter::_narrow(dWriter);
Stock *geQuote = new Stock();
Stock *msftQuote = new Stock();
geQuote->ticker = CORBA::string_dup("GE");
geQuote->price = 12.00f;
msftQuote->ticker = CORBA::string_dup("MSFT");
msftQuote->price = 25.00f;
InstanceHandle_t geHandle = QueryConditionDataWriter->register_instance(*geQuote);
InstanceHandle_t msftHandle = QueryConditionDataWriter->register_instance(*msftQuote);
// Publish Events
ReturnCode_t status;
// update QueryConditionData price every second
for (int x = 0; x < 20; x++)
{
geQuote->price = geQuote->price + 0.5;
msftQuote->price = msftQuote->price + 1.5;
status = QueryConditionDataWriter->write(*geQuote, geHandle);
checkStatus(status, "StockDataWriter::write");
status = QueryConditionDataWriter->write(*msftQuote, msftHandle);
checkStatus(status, "StockDataWriter::write");
os_nanoSleep(delay_100ms);
printf("GE : %.1f MSFT : %.1f\n", geQuote->price, msftQuote->price);
}
// signal to terminate
geQuote->price = - 1;
msftQuote->price = - 1;
QueryConditionDataWriter->write(*geQuote, geHandle);
QueryConditionDataWriter->write(*msftQuote, msftHandle);
cout << "Market Closed" << endl;
// clean up
status = QueryConditionDataWriter->dispose(*geQuote, geHandle);
checkStatus(status, "dispose");
status = QueryConditionDataWriter->dispose(*msftQuote, msftHandle);
checkStatus(status, "dispose");
status = QueryConditionDataWriter->unregister_instance(*geQuote, geHandle);
checkStatus(status, "unregister_instance");
status = QueryConditionDataWriter->unregister_instance(*msftQuote, msftHandle);
checkStatus(status, "unregister_instance");
/* Release the data-samples. */
delete geQuote;
delete msftQuote;
/* Remove the DataWriters */
mgr->deleteWriter(QueryConditionDataWriter.in ());
/* Remove the Publisher. */
mgr->deletePublisher();
/* Remove the Topics. */
mgr->deleteTopic();
/* Remove Participant. */
mgr->deleteParticipant();
delete mgr;
return 0;
}
int main(int argc, char *argv[])
{
// usage : QueryConditionDataQuerySubscriber <query_string>
const char *QueryConditionDataToSubscribe;
if (argc > 1)
{
QueryConditionDataToSubscribe = argv[1];
}
else
{
cerr << "*** [QueryConditionDataQuerySubscriber] Query string not specified" <<
endl;
cerr << "*** usage : QueryConditionDataQuerySubscriber <query_string>" << endl;
return - 1;
}
StockSeq msgList;
SampleInfoSeq infoSeq;
os_time delay_200ms = { 0, 200000000 };
DDSEntityManager *mgr = new DDSEntityManager();
// create domain participant
char partition_name[] = "QueryCondition example";
mgr->createParticipant(partition_name);
//create type
StockTypeSupport_var st = new StockTypeSupport();
mgr->registerType(st.in());
//create Topic
char topic_name[] = "StockTrackerExclusive";
mgr->createTopic(topic_name);
//create Subscriber
mgr->createSubscriber();
mgr->createReader(false);
DataReader_ptr dreader = mgr->getReader();
StockDataReader_var QueryConditionDataReader = StockDataReader::_narrow(dreader);
checkHandle(QueryConditionDataReader, "StockDataReader::_narrow");
// create a query string
StringSeq queryStr;
queryStr.length(1);
queryStr[0] = QueryConditionDataToSubscribe;
// Create QueryCondition
cout << "=== [QueryConditionDataQuerySubscriber] Query : ticker = " <<
QueryConditionDataToSubscribe << endl;
QueryCondition_var queryCondition = QueryConditionDataReader->create_querycondition(ANY_SAMPLE_STATE,
ANY_VIEW_STATE, ANY_INSTANCE_STATE, "ticker=%0", queryStr);
checkHandle(queryCondition.in(), "create_querycondition");
cout << "=== [QueryConditionDataQuerySubscriber] Ready ..." << endl;
bool closed = false;
ReturnCode_t status = - 1;
int count = 0;
while (!closed && count < 1500 )
{
status = QueryConditionDataReader->take_w_condition(msgList, infoSeq, LENGTH_UNLIMITED,
queryCondition);
checkStatus(status, "QueryConditionDataDataReader::take");
for (CORBA::ULong i = 0; i < msgList.length(); i++)
{
if (msgList[i].price == - 1.0f)
{
closed = true;
break;
}
cout << msgList[i].ticker << ": " << msgList[i].price << endl;
}
status = QueryConditionDataReader->return_loan(msgList, infoSeq);
checkStatus(status, "StockDataReader::return_loan");
os_nanoSleep(delay_200ms);
++count;
}
cout << "=== [QueryConditionDataQuerySubscriber] Market Closed" << endl;
// cleanup
// Delete the QueryCondition
QueryConditionDataReader->delete_readcondition(queryCondition.in());
mgr->deleteReader(QueryConditionDataReader.in ());
mgr->deleteSubscriber();
mgr->deleteTopic();
mgr->deleteParticipant();
delete mgr;
return 0;
}
