@Override
    public void memberJoined(ClientMembershipEvent event) {
      Notification notification = new Notification(CLIENT_JOINED, serverSource,
          SequenceNumber.next(), System.currentTimeMillis(),
          CLIENT_JOINED_PREFIX + event.getMemberId());

      serverLevelNotificationEmitter.sendNotification(notification);
      memberLevelNotificationEmitter.sendNotification(notification);
    }
Invoked when a client has connected to this process or when this process has connected to a
CacheServer.
geode-core/src/main/java/org/apache/geode/management/internal/beans/ManagementAdapter.java