private BroadcastGroup createBroadcastGroup(BroadcastGroupConfiguration config) throws Exception { BroadcastGroup group = broadcastGroups.get(config.getName()); if (group == null) { group = new BroadcastGroupImpl( nodeManager, config.getName(), config.getBroadcastPeriod(), scheduledExecutor, config.getEndpointFactoryConfiguration().createBroadcastEndpointFactory()); for (String connectorInfo : config.getConnectorInfos()) { TransportConfiguration connector = configuration.getConnectorConfigurations().get(connectorInfo); if (connector == null) { logWarnNoConnector(config.getName(), connectorInfo); return null; } group.addConnector(connector); } } if (group.size() == 0) { logWarnNoConnector(config.getConnectorInfos().toString(), group.getName()); return null; } broadcastGroups.put(config.getName(), group); return group; }