@Override
    public void update(PingSession pingSession) {
        Objects.requireNonNull(pingSession, "pingSession");

        if (logger.isDebugEnabled()) {
            logger.debug("Update ping session. header={}", pingSession);
        }
        if (!pingSession.isUpdated()) {
            lifecycleListener.connect(pingSession);
            pingSession.setUpdated(true);
        }
    }
@author Woonduk Kang(emeroad)
@author jaehong.kim
collector/src/main/java/com/navercorp/pinpoint/collector/grpc/lifecycle/DefaultPingEventHandler.java