throw new FessSystemException("Could not find tikaExtractor.");
            }
        }

        if (logger.isDebugEnabled()) {
            logger.debug("url={}, extractor={}", responseData.getUrl(), extractor);
        }
        return extractor;
    }

                                && (attributes.get("Fess-WebAppJar") != null || attributes.getValue("Fess-WebAppJar") != null)) {
                            createWebResourceSet(ResourceSetType.CLASSES_JAR, "/WEB-INF/classes", possibleJar.getURL(), "/");
                        }
                    }
                } catch (final Exception e) {
                    logger.log(Level.WARNING, e, () -> {

    /**
     * Returns a URL under which this artifact can be retrieved. If not
     * specified the user repositories are used for retrieving.
     */
    @Nullable
    String getUrl();

    /**
     * Sets the URL for this artifact.
     */
    void setUrl(@Nullable String url);

    protected void delayBeforeProcessing() {
        final UrlQueue<?> urlQueue = CrawlingParameterUtil.getUrlQueue();
        if (urlQueue == null) {
            return;
        }

        final String url = urlQueue.getUrl();
        if (StringUtil.isBlank(url) || url.startsWith("file:")) {
            // not target
            return;
        }

        try {
            final URL u = new URL(url);

        }
        final Extractor extractor = extractorFactory.getExtractor(responseData.getMimeType());
        if (logger.isDebugEnabled()) {
            logger.debug("url={}, extractor={}", responseData.getUrl(), extractor);
        }
        return extractor;
    }

    @Override
    public void setClassifier(@Nullable String classifier) {
        this.classifier = classifier;
    }

    @Nullable
    @Override
    public String getUrl() {
        return url;
    }

    @Override
    public void setUrl(@Nullable String url) {
        this.url = url;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;

    }

    @Override
    public Transport transport(Session session, RemoteRepository repository) {
        try {
            URI baseURI = new URI(repository.getUrl());
            return new DefaultTransport(
                    baseURI,
                    transporterProvider.newTransporter(
                            InternalSession.from(session).getSession(),

        asDocMeta().version(version);
    }

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    @Override
    public Map<String, Object> toSource() {
        final Map<String, Object> sourceMap = super.toSource();
        if (fields != null) {
            sourceMap.putAll(fields);
        }

        asDocMeta().version(version);
    }

    public void addField(final String key, final Object value) {
        fields.put(key, value);
    }

    public String getLogMessage() {
        return getUrl();
    }

    public LocalDateTime getRequestedAt() {
        return getCreatedAt();
    }

    @Override
    public Map<String, Object> toSource() {

    public void setQueryId(String value) {
        registerModifiedProperty("queryId");
        this.queryId = value;
    }

    public String getUrl() {
        checkSpecifiedProperty("url");
        return convertEmptyToNull(url);
    }

    public void setUrl(String value) {
        registerModifiedProperty("url");
        this.url = value;
    }

    public String getUserInfoId() {