public BrokerDetails getNextBrokerDetails() { BrokerDetails broker = null; synchronized (_brokerListLock) { if (_currentBrokerIndex == (_connectionDetails.getBrokerCount() - 1)) { _currentBrokerIndex = 0; } else { _currentBrokerIndex++; } broker = _connectionDetails.getBrokerDetails(_currentBrokerIndex); // When the broker list is updated it will include the current broker as well // There is no point trying it again, so trying the next one. if (_currentBrokerDetail != null && broker.getHost().equals(_currentBrokerDetail.getHost()) && broker.getPort() == _currentBrokerDetail.getPort()) { if (_connectionDetails.getBrokerCount() > 1) { return getNextBrokerDetails(); } else { _failedAttemps++; return null; } } } String delayStr = broker.getProperty(BrokerDetails.OPTIONS_CONNECT_DELAY); if (delayStr != null) { Long delay = Long.parseLong(delayStr); _logger.info("Delay between connect retries:" + delay); try { Thread.sleep(delay); } catch (InterruptedException ie) { return null; } } else { _logger.info( "No delay between connect retries, use tcp://host:port?connectdelay='value' to enable."); } _failedAttemps++; _currentBrokerDetail = broker; return broker; }
public void onMessage(Message m) { _logger.info("Failover exchange notified cluster membership change"); String currentBrokerIP = ""; try { currentBrokerIP = InetAddress.getByName(_currentBrokerDetail.getHost()).getHostAddress(); } catch (Exception e) { _logger.warn("Unable to resolve current broker host name", e); } List<BrokerDetails> brokerList = new ArrayList<BrokerDetails>(); try { List<String> list = (List<String>) m.getObjectProperty("amq.failover"); for (String brokerEntry : list) { String[] urls = brokerEntry.substring(5).split(","); // Iterate until you find the correct transport // Need to reconsider the logic when the C++ broker supports // SSL URLs. for (String url : urls) { String[] tokens = url.split(":"); if (tokens[0].equalsIgnoreCase(_originalBrokerDetail.getTransport())) { BrokerDetails broker = new AMQBrokerDetails(); broker.setTransport(tokens[0]); broker.setHost(tokens[1]); broker.setPort(Integer.parseInt(tokens[2])); broker.setProperties(_originalBrokerDetail.getProperties()); broker.setSSLConfiguration(_originalBrokerDetail.getSSLConfiguration()); brokerList.add(broker); if (currentBrokerIP.equals(broker.getHost()) && _currentBrokerDetail.getPort() == broker.getPort()) { _currentBrokerIndex = brokerList.indexOf(broker); } break; } } } } catch (JMSException e) { _logger.error("Error parsing the message sent by failover exchange", e); } synchronized (_brokerListLock) { _connectionDetails.setBrokerDetails(brokerList); } _logger.info("============================================================"); _logger.info("Updated cluster membership details " + _connectionDetails); _logger.info("============================================================"); }