* @param writer a writer object.
     * @param settings a settings object.
     * @throws IOException java.io.IOException if any.
     */
    public void write(Writer writer, Settings settings) throws IOException {
        try {
            delegate.write(writer, settings.getDelegate());
        } catch (XMLStreamException e) {
            throw new IOException(e);
        }
    }

    /**
     * Method write.
     *

        }

        body.crudMode = CrudMode.CREATE;
        final FileAuthentication fileAuth = getFileAuthentication(body).map(entity -> {
            try {
                fileAuthService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);

    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            final BufferedInputStream bis = new BufferedInputStream(in);
            final String enc = getEncoding(bis);
            final String content = UNESCAPE_HTML4.translate(new String(InputStreamUtil.getBytes(bis), enc));

        validateApi(body, messages -> {});
        body.crudMode = CrudMode.CREATE;
        final WebConfig webConfig = getWebConfig(body).map(entity -> {
            try {
                webConfigService.store(entity);
            } catch (final Exception e) {
                logger.warn("Failed to process a request.", e);

        server.setHandler(handlers);
    }

    public void start() {
        try {
            server.start();
        } catch (final Exception e) {
            throw new CrawlerSystemException(e);
        }
    }

    public void stop() {
        try {
            server.stop();
            server.join();
        } catch (final Exception e) {

    List<FactoryMethodReturnsNullException> nullErrors = Lists.newArrayList();
    // Try factories with the greatest number of parameters.
    for (Invokable<?, ?> factory : factories) {
      if (factory.getParameters().size() == numberOfParameters) {
        try {
          testEqualsUsing(factory);
          return;
        } catch (ParameterNotInstantiableException e) {

            List<ArtifactRepository> repos = new ArrayList<>(repositories.size());

            for (Object repository : repositories) {
                if (repository instanceof Repository) {
                    try {
                        ArtifactRepository repo = repositorySystem.buildArtifactRepository((Repository) repository);
                        repositorySystem.injectMirror(request.getRepositorySession(), Arrays.asList(repo));

    elements.forEach(action);
  }

  @Override
  public int size() {
    return elements.size();
  }

  @Override
  public boolean contains(@CheckForNull Object o) {
    try {
      return o != null && unsafeBinarySearch(o) >= 0;
    } catch (ClassCastException e) {
      return false;
    }
  }

  @Override
  public boolean containsAll(Collection<?> targets) {

        if (boost != null) {
            return boost.toString();
        }
        return null;
    }

    public void setBoostValue(final String value) {
        if (value != null) {
            try {
                boost = Float.parseFloat(value);
            } catch (final Exception e) {}
        }
    }

    @Override
    public String getIndexingTarget(final String input) {

            final byte[] data = accessResultData.getData();
            if (data == null) {
                return null;
            }
            final String encoding = accessResultData.getEncoding();
            try {
                return new String(data, encoding == null ? Constants.UTF_8 : encoding);
            } catch (final UnsupportedEncodingException e) {
                if (logger.isInfoEnabled()) {