*
     * @param userAgent The user agent string to look up in the directives
     * @return The Directive object matching the user agent, or null if no matching directive is found or if userAgent is null
     */
    public Directive getDirective(final String userAgent) {
        if (userAgent == null) {
            return null;
        }

            assertFalse(robotsTxt.allows("/private/index.html", userAgent));
            assertFalse(robotsTxt.allows("/help/", userAgent));
            assertFalse(robotsTxt.allows("/help.html", userAgent));
            assertFalse(robotsTxt.allows("/help/faq.html", userAgent));
            assertTrue(robotsTxt.allows("/foo/bar/", userAgent));
            assertTrue(robotsTxt.allows("/foo/bar/index.html", userAgent));

            if (uaType == null) {
                final String userAgent = request.getHeader(USER_AGENT);
                if (userAgent != null) {
                    if (userAgent.indexOf("MSIE") >= 0 || userAgent.indexOf("Trident") >= 0) {
                        uaType = UserAgentType.IE;
                    } else if (userAgent.indexOf("Firefox") >= 0) {
                        uaType = UserAgentType.FIREFOX;

        this.authSchemeProviderMap = authSchemeProviderMap;
    }

    /**
     * Sets the user agent string.
     * @param userAgent The user agent string.
     */
    public void setUserAgent(final String userAgent) {
        this.userAgent = userAgent;
    }

    /**
     * Sets the credentials provider.
     * @param credentialsProvider The credentials provider.
     */

            }
        }

        // user agent
        userAgent = getInitParameter(USER_AGENT_PROPERTY, userAgent, String.class);
        if (StringUtil.isNotBlank(userAgent)) {
            httpClientBuilder.setUserAgent(userAgent);
        }

        final HttpRoutePlanner planner = buildRoutePlanner();
        if (planner != null) {

                                    </tr>
                                    <tr>
                                        <th><la:message key="labels.userAgent"/></th>
                                        <td>${f:h(userAgent)}<la:hidden property="userAgent"/></td>
                                    </tr>
                                    </tbody>
                                </table>
                            </div>

                                    <label for="userAgent" class="col-sm-3 text-sm-right col-form-label"><la:message
                                            key="labels.userAgent"/></label>
                                    <div class="col-sm-9">
                                        <la:errors property="userAgent"/>
                                        <la:text styleId="userAgent" property="userAgent" styleClass="form-control"/>

            false, false, "Long", 0, 0, null, null, false, null, null, null, null, null, false);
    protected final ColumnInfo _columnUserAgent = cci("userAgent", "userAgent", null, null, String.class, "userAgent", null, false, false,
            false, "keyword", 0, 0, null, null, false, null, null, null, null, null, false);

    public ColumnInfo columnCreatedBy() {
        return _columnCreatedBy;

        }

        final String userAgent = getUserAgent();
        if (!StringUtil.isNotBlank(userAgent) || (userAgent.startsWith(Constants.CRAWLING_USER_AGENT_PREFIX)
                && userAgent.endsWith(Constants.CRAWLING_USER_AGENT_SUFFIX))) {
            paramMap.put(Client.USER_AGENT, fessConfig.getUserAgentName());
        } else {
            paramMap.put(Client.USER_AGENT, userAgent);
        }

            return LaRequestUtil.getOptionalRequest().map(request -> {
                final String userAgent = request.getHeader("user-agent");
                if (StringUtil.isBlank(userAgent)) {
                    return false;
                }

                return pathMapping.getUAMatcher(userAgent).find();
            }).orElse(false);
        }
        return false;
    }