public List <QNode> nodes()
{
var bySystem = new LazyDictionary <string, List <LiveSystem> > (system => new List <LiveSystem>());
each(systems, liveSystem => bySystem.get(liveSystem.siv().system()).Add(liveSystem));
var result = list(convert(bySystem.keys(), system => {
var liveSystems = bySystem.get(system);
var systemNode = new QNode(system, liveSystems.Count, 0);
each(liveSystems, liveSystem => {
var liveSystemNode = systemNode.add(new LiveSystemNode(liveSystem, 1, 0));
var liveMarkets = list <MsivPv>(liveSystem.liveMarkets());
each(liveMarkets, liveMarket => {
try {
var symbol = new Symbol(liveMarket.market());
var liveMarketNode = new LiveMarketNode(symbol, 1, 0);
liveSystemNode.add(liveMarketNode);
var topic = new Topic(liveSystem.topicName(OrderTable.prefix, symbol.name + "." + SystemHeartbeat.SUFFIX));
topic.subscribeIfNeeded();
updateModelNodes += () => updateNode(topic, liveMarket, liveMarketNode);
symbol.subscribe(bar => recordMarketDataTickReceived(liveMarket, bar.time));
topic.subscribe(fields => {
var tickTime = fields.time("lastTickProcessed");
ticks.get(liveMarket).systemProcessed(date(tickTime));
});
} catch (Exception ex) {
LogC.err("exception caught subscribing to tick data for " + liveMarket + ", " + system, ex);
gui.alertUser("exception caught susbcribing to data for " + liveMarket + ", " + system + ".\nSkipping... see log for details.");
}
});
updateModelNodes += () => updateNode(liveSystem, liveSystemNode);
});
updateModelNodes += () => updateNode(systemNode);
return(systemNode);
}));
timerManager().everyMillis(1000, updateModelNodes, out timer);
LiveLauncher.subscribeHeartbeat(gui.launcherAvailable);
LogC.ignore(timer);
return(result);
}