How to use

CacheInvalidator

in

org.dd4t.caching

  @Override
  public void run() {
    LOG.debug("Monitor thread running");
    MQServerStatus previousServerStatus = MQServerStatus.UP;
    try {
      while (!Thread.currentThread().isInterrupted()) {
        LOG.debug("JMS MQ server is {} ", serverStatus);
        if (cacheInvalidator != null) {
          if (isMQServerDown()) {
            cacheInvalidator.flush();
          } else if (previousServerStatus == MQServerStatus.DOWN) {
            LOG.debug("JMS MQ server recovered. Flush local cache one more time.");
            cacheInvalidator.flush();
          }
          previousServerStatus = serverStatus;
        }
        Thread.sleep(monitorServiceInterval);
      }
    } catch (InterruptedException e) {
      LOG.debug("Cache monitor thread interrupted");
      Thread.currentThread().interrupt();
    }
  }
};

@Override
public void onMessage(Message message) {
  CacheEvent event = getCacheEvent(message);
  if (event != null) {
    switch (event.getType()) {
      case CacheEvent.INVALIDATE:
        LOG.debug("Invalidate " + event);
        Serializable key = event.getKey();
        cacheInvalidator.invalidate(stripNamespaceIfRequired(key.toString()));
        monitor.setMQServerStatusUp();
        break;
      case CacheEvent.FLUSH:
        LOG.debug("Flush " + event);
        monitor.setMQServerStatusUp();
        break;
      default:
        break;
    }
  }
}