}
        }

        if (tikaConfig == null) {
            tikaConfig = TikaConfig.getDefaultConfig();
        }

        if (logger.isDebugEnabled()) {
            final Parser parser = tikaConfig.getParser();
            logger.debug("supportedTypes: {}", parser.getSupportedTypes(new ParseContext()));
        }
    }

    @Override

    private static final Logger logger = LogManager.getLogger(IngestFactory.class);

    private Ingester[] ingesters = {};

    public synchronized void add(final Ingester ingester) {
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", ingester.getClass().getSimpleName());
        }
        final Ingester[] newIngesters = Arrays.copyOf(ingesters, ingesters.length + 1);

                    .orElse(false);
        } catch (final InvalidAccessTokenException e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Invalid access token.", e);
            }
            return false;
        }
    }

            if (logger.isDebugEnabled()) {
                logger.debug("{} -> {}", attrValue, u);
            }
            if (StringUtil.isNotBlank(u)) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Add Child: {}", u);
                }
                urlList.add(u);
            } else if (logger.isDebugEnabled()) {
                logger.debug("Skip Child: {}", u);

    protected Logger searchLogLogger = null;

    protected ObjectMapper objectMapper = new ObjectMapper();

    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        userInfoCache = CacheBuilder.newBuilder()//
                .maximumSize(userInfoCacheSize)//

                    @Override
                    public XPathAPI load(final String key) {
                        if (logger.isDebugEnabled()) {
                            logger.debug("created XPathAPI by {}", key);
                        }
                        return new XPathAPI();
                    }
                });
    }

    /*

            System.err.println("java " + Crawler.class.getCanonicalName() + " [options...] arguments...");
            parser.printUsage(System.err);
            return;
        }

        if (logger.isDebugEnabled()) {
            try {
                ManagementFactory.getRuntimeMXBean().getInputArguments().stream().forEach(s -> logger.debug("Parameter: {}", s));

        if ( log.isTraceEnabled() ) {
            log.trace("Release session " + usage + " " + this);
        }

        if ( usage == 0 ) {
            if ( log.isDebugEnabled() ) {
                log.debug("Usage dropped to zero, release connection " + this.transport);
            }
            synchronized ( this ) {
                if ( this.transportAcquired.compareAndSet(true, false) ) {

        if (millis < 1L) {
            return;
        }
        try {
            Thread.sleep(millis);
        } catch (final InterruptedException e) {
            if (logger.isDebugEnabled()) {
                logger.debug(Thread.currentThread().getName() + " is interrupted.", e);
            }
        }
    }

            return;
        }

        if (logger.isDebugEnabled()) {
            logger.debug("{} -> {}", attrValue, u);
        }
        if (StringUtil.isNotBlank(u)) {
            if (logger.isDebugEnabled()) {
                logger.debug("Add Child: {}", u);
            }
            urlList.add(u);
        } else if (logger.isDebugEnabled()) {
            logger.debug("Skip Child: {}", u);
        }