Android using rabbitmq singleton connection -

Android using rabbitmq singleton connection -

i need design patter create rabbitmq singleton connection can restart on connection loss/ net provider switch. problem connection realised on thread (asynctask) due android main thread policy. utilize connection 2 services consume , push.

public class rabbitsingletonconnection { public static rabbitsingletonconnection instance; private connection connection; private rabbitsingletonconnection() { } public static rabbitsingletonconnection getinstance() { if (instance == null) { instance = new rabbitsingletonconnection(); } homecoming instance; } public void connect(rabbitmqconnectioncallback callback) { if (connection != null && connection.isopen()) { logutil.hecslog("rabbitsingletonconnection", "already connected"); callback.onconnect(connection); return; } new rabbitconnectasync(callback).execute("ip","user", "pass"); } public void setconnection(connection connection) { this.connection = connection; } public connection getconnection() { homecoming connection; } }

problem logutil.hecslog("rabbitsingletonconnection", "already connected"); never occurs. have been digging , discovered "thread safe singleton using classloader declaration or enum approach", not include callback method.

edit

rabbitsingletonconnection.getinstance().connect(new rabbitmqconnectioncallback() { @override public void onconnect(connection result) { if (result != null && result.isopen()){ rabbitsingletonconnection.getinstance().setconnection(result); logutil.hecslog(log, "service has started"); } } });

this illustration is necessary rebuild rabbitmq connection each time message sent cannot create connection in constructor because needs thread handle timeoutexception.

my goal start service after rabbitmq async task connects.

do need dependency injection?

i think figured out, starting/stopping services on connectivity gain/loss. looked @ facebook app , services never stop, logic reply reset workflow in service not service itslef.

android connection singleton rabbitmq