/** * Initializes this network address manager service implementation and starts all * processes/threads associated with this address manager, such as a stun firewall/nat detector, * keep alive threads, binding lifetime discovery threads and etc. The method may also be used * after a call to stop() as a reinitialization technique. */ public void start() { // init stun String stunAddressStr = null; int port = -1; stunAddressStr = NetaddrActivator.getConfigurationService().getString(PROP_STUN_SERVER_ADDRESS); String portStr = NetaddrActivator.getConfigurationService().getString(PROP_STUN_SERVER_PORT); this.localHostFinderSocket = initRandomPortSocket(); if (stunAddressStr == null || portStr == null) { useStun = false; // we use the default stun server address only for chosing a public // route and not for stun queries. stunServerAddress = new StunAddress(DEFAULT_STUN_SERVER_ADDRESS, DEFAULT_STUN_SERVER_PORT); logger.info( "Stun server address(" + stunAddressStr + ")/port(" + portStr + ") not set (or invalid). Disabling STUN."); } else { try { port = Integer.valueOf(portStr).intValue(); } catch (NumberFormatException ex) { logger.error(portStr + " is not a valid port number. " + "Defaulting to 3478", ex); port = 3478; } stunServerAddress = new StunAddress(stunAddressStr, port); detector = new SimpleAddressDetector(stunServerAddress); if (logger.isDebugEnabled()) { logger.debug( "Created a STUN Address detector for the following " + "STUN server: " + stunAddressStr + ":" + port); } detector.start(); logger.debug("STUN server detector started;"); // make sure that someone doesn't set invalid stun address and port NetaddrActivator.getConfigurationService() .addVetoableChangeListener(PROP_STUN_SERVER_ADDRESS, this); NetaddrActivator.getConfigurationService() .addVetoableChangeListener(PROP_STUN_SERVER_PORT, this); // now start a thread query to the stun server and only set the // useStun flag to true if it succeeds. launchStunServerTest(); } }