import org.codelibs.fess.mylasta.direction.sponsor.FessUserTimeZoneProcessProvider;
import org.lastaflute.core.direction.CachedFwAssistantDirector;
import org.lastaflute.core.direction.FwAssistDirection;
import org.lastaflute.core.direction.FwCoreDirection;
import org.lastaflute.core.security.InvertibleCryptographer;
import org.lastaflute.core.security.OneWayCryptographer;
import org.lastaflute.db.dbflute.classification.ListedClassificationProvider;

import org.apache.logging.log4j.Logger;
import org.codelibs.core.CoreLibConstants;
import org.codelibs.core.exception.InterruptedRuntimeException;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.lang.ThreadUtil;
import org.codelibs.core.misc.DynamicProperties;
import org.codelibs.core.timer.TimeoutManager;
import org.codelibs.core.timer.TimeoutTask;
import org.codelibs.fess.Constants;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.lang.ThreadUtil;

 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.validation;

import org.lastaflute.core.message.UserMessages;
import org.lastaflute.core.message.supplier.UserMessagesCreator;
import org.lastaflute.web.servlet.request.RequestManager;
import org.lastaflute.web.validation.ActionValidator;

import javax.annotation.PostConstruct;

import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.stream.StreamUtil;
import org.codelibs.fess.util.ComponentUtil;

public class FileTypeHelper {
    private static final Logger logger = LogManager.getLogger(FileTypeHelper.class);

For the more details, see the implementation code in [GsaApiManager](/src/main/java/org/codelibs/fess/api/gsa/GsaApiManager.java).

### Google Site Search (GSS) / Google Custom Search (GSE)

import static org.codelibs.core.stream.StreamUtil.split;
import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.stream.Collectors;
import java.util.stream.Stream;

import javax.annotation.Resource;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.lang.StringUtil;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.service;

import java.util.List;

import javax.annotation.Resource;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.DuplicateHostPager;
import org.codelibs.fess.es.config.cbean.DuplicateHostCB;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.service;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.List;

import javax.annotation.Resource;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.GroupPager;
import org.codelibs.fess.es.user.cbean.GroupCB;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.service;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.List;

import javax.annotation.Resource;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.RolePager;
import org.codelibs.fess.es.user.cbean.RoleCB;