observing for subset of event using jtapi provider - cisco-jtapi

Question

I am using cisco jtapi v7+ and investigating whether I can add a provider to only listen to certain (not all) events. However, the only call I see in the API is the following:
provider.addObserver(ProviderObserver);
I would like to avoid filtering events in my application and have it done through the API. Any thoughts/insight on this would be appreciated!

Answer 1

You must add CallObserver instance to address which you want listen, then filtering events. For example:
Address srcAddr = provider.getAddress(src);
co = new CallObserver() {
public void callChangedEvent(CallEv[] eventList) {
for (int i = 0; i < eventList.length; ++i) {
try {
if (eventList[i].getID() == TermConnRingingEv.ID) {
session.getBasicRemote().sendText("new_call");
}
} catch (Exception ex) {
ex.printStackTrace();
}
if (eventList[i].getID() == ConnDisconnectedEv.ID) {
try {
System.out.println("Disconnected");
session.getBasicRemote().sendText("disconnected");
} catch (Exception ex) {
ex.printStackTrace();
}
}
if (eventList[i] instanceof CallObservationEndedEv) {
System.out.println("Event: Call Observation Ended");
}
if (eventList[i] instanceof CiscoAddrOutOfServiceEv) {
System.out.println("Event: Address Out of service");
}
System.out.println("State: " + eventList[i].getCall().getState());
}
}
};
srcAddr.addCallObserver(co);