static void Main(string[] args)
{
if (args.Length != 1)
{
Console.WriteLine("*** [ContentFilteredTopicDataSubscriber] Subscription string not specified");
Console.WriteLine("*** usage : ContentFilteredTopicDataSubscriber <subscription_string>");
Environment.Exit(-1);
}
ITopic topic;
DDSEntityManager mgr = new DDSEntityManager();
String partitionName = "ContentFilteredTopic example";
// Create DomainParticipant
mgr.createParticipant(partitionName);
// Create Type
StockTypeSupport msgTS = new StockTypeSupport();
mgr.registerType(msgTS);
// Create Topic
topic = mgr.createTopic("StockTrackerExclusive", "ContentFilteredTopic");
// ContentFilteredTopic
mgr.createContentFilter("MyStockTopic", topic, args[0]);
Console.WriteLine("=== [ContentFilteredTopicDataSubscriber] Subscription filter : ticker = '{0}'",args[0]);
// create Subscriber
mgr.createSubscriber();
// create DataReader
mgr.createReader("ContentFilteredTopic", true);
// Read Events
IDataReader dreader = mgr.getReader();
StockDataReader WaitSetReader = dreader as StockDataReader;
// Create WaitSet
IWaitSet w = new WaitSet();
// Status Condition
IStatusCondition status;
status = dreader.StatusCondition;
status.SetEnabledStatuses(StatusKind.DataAvailable);
ReturnCode result = ReturnCode.Error;
result = w.AttachCondition(status);
ErrorHandler.checkHandle(status, "DataReader.StatusCondition");
ErrorHandler.checkStatus(result, "WaitSet.AttachCondition");
DDS.ICondition[] conditionList;
DDS.SampleInfo[] infoSeq;
Stock[] stockSeq;
Console.WriteLine("=== [ContentFilteredTopicDataSubscriber] Ready ...");
bool terminate = false;
int count = 0;
while (!terminate && count < 1500)
{
/**
* Wait until data will be available
*/
Duration wait_timeout = new Duration(Duration.InfiniteSec, Duration.InfiniteNanoSec);
conditionList = null;
result = w.Wait(ref conditionList, wait_timeout);
ErrorHandler.checkStatus(result, "WaitSet.Wait");
stockSeq = null;
infoSeq = null;
/**
* Read Data
*/
result = WaitSetReader.Take(ref stockSeq, ref infoSeq, Length.Unlimited, SampleStateKind.Any, ViewStateKind.Any, InstanceStateKind.Any);
ErrorHandler.checkStatus(result, "StockDataReader.Take");
/**
* Display Data
*/
for (int i=0; i < stockSeq.Length; i++)
{
if (infoSeq[i].ValidData)
{
if (stockSeq[i].price == -1)
{
// We read the last expected sample => exit
terminate = true;
break;
}
Console.WriteLine("=== [ContentFilteredTopicDataSubscriber] receives stockQuote : ( {0} , {1} )",
stockSeq[i].ticker, stockSeq[i].price);
}
}
result = WaitSetReader.ReturnLoan(ref stockSeq, ref infoSeq);
ErrorHandler.checkStatus(result, "StockDataReader.ReturnLoan");
Thread.Sleep(200);
++count;
}
Console.WriteLine("=== [ContentFilteredTopicDataSubscriber] Market Closed");
// clean up
mgr.getSubscriber().DeleteDataReader(WaitSetReader);
mgr.deleteSubscriber();
mgr.deleteContentFilteredTopic();
mgr.deleteTopic();
mgr.deleteParticipant();
}
