protected void initializeNetty(SslServerContextFactory sslFactory,
Map<OperationType, Handler> handlers,
SubscriptionChannelManager subChannelMgr) {
boolean isSSLEnabled = (sslFactory != null) ? true : false;
InternalLoggerFactory.setDefaultFactory(new Log4JLoggerFactory());
ServerBootstrap bootstrap = new ServerBootstrap(serverChannelFactory);
UmbrellaHandler umbrellaHandler =
new UmbrellaHandler(allChannels, handlers, subChannelMgr, isSSLEnabled);
PubSubServerPipelineFactory pipeline =
new PubSubServerPipelineFactory(umbrellaHandler, sslFactory,