try {
                            is = lhaFile.getInputStream(head);
                            final Map<String, String> map = new HashMap<>();
                            map.put(ExtractData.RESOURCE_NAME_KEY, filename);
                            buf.append(extractor.getText(new IgnoreCloseInputStream(is), map).getContent());
                            buf.append('\n');

        if (StringUtil.isBlank(key) || StringUtil.isBlank(value)) {
            throw new CrawlerSystemException("key or value is null.");
        }

        featureMap.put(key, value);
    }

    /**
     * Adds a property to the extractor.
     *
     * @param key   the key of the property
     * @param value the value of the property
     */

            newExtractors[newExtractors.length - 1] = extractor;

            Arrays.sort(newExtractors, Comparator.comparingInt(Extractor::getWeight).reversed());

            extractorMap.put(key, newExtractors);
        } else {
            extractorMap.put(key, new Extractor[] { extractor });
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {} : {}", key, extractor.getClass().getName());
        }

            if (!response.isExists()) {
                createAnalyzerSettings(loadIndexSettings(), loadIndexMapping());
            }
            analyzerMap.put(analyzerSettingsIndexName, getAnalyzerNames());
            fieldAnalyzerMappingMap.put(analyzerSettingsIndexName, getFieldAnalyzerMapping());
        } catch (final IOException e) {
            throw new SuggestSettingsException("Failed to create mappings.");
        }

        if (target == null || replacement == null) {
            throw new CrawlerSystemException("Target or replacement cannot be null.");
        }
        convertMap.put(target, replacement);
    }

    /**
     * Sets the conversion map.
     * @param convertMap The conversion map to set.
     */
    public void setConvertMap(final Map<String, String> convertMap) {

     * @param componentName The name of the component to register.
     */
    public synchronized void register(final String regex, final String componentName) {
        clientMap.put(regex, componentName);
        clientFactoryList.forEach(f -> load(f, regex, componentName));
    }

    /**
     * Loads a crawler client into the specified crawler client factory.
     *

            throw new CrawlerSystemException("command is empty.");
        }

        final Map<String, String> params = new HashMap<>();
        params.put("$INPUT_FILE", inputFile.getAbsolutePath());
        params.put("$OUTPUT_FILE", outputFile.getAbsolutePath());

        final List<String> cmdList = parseCommand(command, params);
        if (logger.isInfoEnabled()) {

     * @param value The value of the setting.
     * @return This builder instance.
     */
    public SuggestSettingsBuilder addInitialSettings(final String key, final Object value) {
        initialSettings.put(key, value);
        return this;
    }

    /**
     * Sets the scroll timeout.
     * @param timeout The scroll timeout.
     * @return This builder instance.
     */

    // basicAuthList.add(new AuthenticationImpl(
    // new AuthScope("www.hoge.com", 80),
    // new UsernamePasswordCredentials("username", "password"),
    // digestScheme));
    // paramMap.put(
    // HcHttpClient.AUTHENTICATIONS_PROPERTY,
    // basicAuthList.toArray(new Authentication[basicAuthList.size()]));
    //
    // List<Callable<ResponseData>> list =
    // new ArrayList<Callable<ResponseData>>();

     * @return this container instance for method chaining
     */
    public <T> StandardCrawlerContainer prototype(final String name, final Class<T> cls, final Consumer<T> component) {
        prototypeMap.put(name, new ComponentDef<>(cls, component, this));
        return this;
    }

    /**
     * Registers a prototype component with the specified name and class.