}

    public void test_parseDate() {
        Date date;

        date = FessFunctions.parseDate("");
        assertNull(date);

        date = FessFunctions.parseDate("2004-04-01T12:34:56.123Z");
        assertEquals("2004-04-01T12:34:56.123Z", FessFunctions.formatDate(date));

        date = FessFunctions.parseDate("2004-04-01T12:34:56Z");

        }
    }

    protected String toRangeLocalDateTimeString(LocalDateTime date, String format) {
        if (format.contains("epoch_millis")) {
            return Long.toString(date.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
        } else if (format.contains("date_optional_time")) {
            return DateTimeFormatter.ISO_DATE_TIME.format(date);
        } else {

        }
    }

    protected String toRangeLocalDateTimeString(LocalDateTime date, String format) {
        if (format.contains("epoch_millis")) {
            return Long.toString(date.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
        } else if (format.contains("date_optional_time")) {
            return DateTimeFormatter.ISO_DATE_TIME.format(date);
        } else {

		<Property name="backup.date.suffix" value="_%d{yyyyMMdd}" />
		<Property name="backup.max.history" value="10" />
		<Property name="stats.log.pattern" value="%msg%n" />
	</Properties>

	<Appenders>
		<RollingFile name="AppRollingFile" fileName="${log.file.basedir}/${domain.name}.log"
			filePattern="${log.file.basedir}/${domain.name}${backup.date.suffix}-%i.log.gz">

        }

    }

    public Date getDocumentExpires(final CrawlingConfig config) {
        if (config != null) {
            final Integer timeToLive = config.getTimeToLive();
            if (timeToLive != null) {
                // timeToLive minutes
                final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
                return new Date(now + timeToLive.longValue() * 1000 * 60);
            }

import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Base64;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Stream;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.annotation.Secured;

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

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;

            "type" : "keyword"
          },
          "sessionId" : {
            "type" : "keyword"
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1509021050413",
        "number_of_shards" : "5",
        "number_of_replicas" : "1",
        "uuid" : "Oh0_KGaLRLGjpIm2zjB83Q",
        "version" : {
          "created" : "6000051"
        },

            "type" : "keyword"
          },
          "thumbnail_id" : {
            "type" : "keyword"
          }
        }
      }
    },
    "settings" : {
      "index" : {
        "creation_date" : "1509021057304",
        "number_of_shards" : "5",
        "number_of_replicas" : "1",
        "uuid" : "gofu2g1ATH6L2rVweOWmtg",
        "version" : {
          "created" : "6000051"
        },

    public static final String MAPPING_TYPE_LONG = "long";

    public static final String MAPPING_TYPE_DOUBLE = "double";

    public static final String MAPPING_TYPE_DATE = "date";

    public static final String MAPPING_TYPE_PDF_DATE = "pdf_date";

    public static final String PAGING_QUERY_LIST = "pagingQueryList";

    public static final String REQUEST_LANGUAGES = "requestLanguages";