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Madhur,
On 3/29/15 5:17 AM, Madhur Ahuja wrote:
> We have built a messaging server using PubNub which listens for
> chat messages from Android device. For this, our J2EE based spring,
> we have created a Pubnub listener (which is basically a listening
> socket) as follows.
If you have a component that opens its own socket, then it's not
really using Tomcat for anything. Someone here might be able to help,
but it sounds like this is not really Tomcat-related.
> However, we have observed is that our server stops listening
> randomly after few days. The Tomcat keeps working fine, but just
> the socket stops listening. There is not error in logs.
Yup, it sounds like it's not Tomcat-related. I'll let some others on
the list with more Spring-related experience jump in and try to help.
- -chris
> Can anyone help in diagnosing this issue? Specifically, I want to
> ensure that the below design to initiate a listener is durable and
> not prone to errors.
>
> public class IncomingListener implements ApplicationListener <
> ContextRefreshedEvent > {
>
> @Override public void onApplicationEvent(ContextRefreshedEvent
> event) {
>
> private static volatile boolean isContextLoaded = false;
>
> @Autowired ServletContext application;
>
> synchronized(IncomingListener.class) {
>
> if (isContextLoaded) { System.out.println("WTF: Not initializing
> incoming listener"); return; } try { initialiseIncomingListener();
> isContextLoaded = true; } catch (JSONException e) {
> e.printStackTrace(); } catch (AkoshaException e) {
> e.printStackTrace(); }
>
> } }
>
> private void initialiseIncomingListener() { // Initialize our
> Pubnub Listener
>
> pubnub.subscribe(serverchannel, new Callback() {
>
> // Subscribe to pubnub }); } }
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