*/
package org.codelibs.fess.app.service;

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

import java.util.List;

import org.codelibs.core.beans.util.BeanUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.pager.GroupPager;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.user.cbean.GroupCB;

import org.codelibs.fess.app.web.error.ErrorAction;
import org.codelibs.fess.crawler.util.CharUtil;
import org.codelibs.fess.helper.PathMappingHelper;
import org.codelibs.fess.helper.SearchLogHelper;
import org.codelibs.fess.helper.ViewHelper;
import org.codelibs.fess.opensearch.log.exentity.ClickLog;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.fess.util.DocumentUtil;
import org.dbflute.util.DfTypeUtil;

 */
package org.codelibs.fess.opensearch.client;

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

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fesen.client.HttpClient;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.client.FesenClient;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.util.ComponentUtil;

 */
package org.codelibs.fess.util;

import java.io.File;
import java.io.FilenameFilter;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.mylasta.direction.FessConfig;

     * guess with an application of Newton's method, which sets guess := (guess + (x / guess)) / 2.
     * This iteration has the following two properties:
     *
     * a) every iteration (except potentially the first) has guess >= floor(sqrt(x)). This is
     * because guess' is the arithmetic mean of guess and x / guess, sqrt(x) is the geometric mean,

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

import java.util.function.Consumer;

import org.codelibs.fess.Constants;

/**
 * A wrapper class that manages a system process for job execution.
 * This class provides access to the underlying process and manages

import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.entity.SearchRequestParams.SearchRequestType;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.suggest.exception.SuggesterException;
import org.codelibs.fess.suggest.request.popularwords.PopularWordsRequestBuilder;
import org.codelibs.fess.util.ComponentUtil;

import com.google.common.cache.Cache;

import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to {@link List} instances. Also see this class's counterparts
 * {@link Sets}, {@link Maps} and {@link Queues}.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/CollectionUtilitiesExplained#lists">{@code Lists}</a>.
 *
 * @author Kevin Bourrillion
 * @author Mike Bostock

 *
 * <p><b>Note:</b> by default, the returned cache uses equality comparisons (the {@link
 * Object#equals equals} method) to determine equality for keys or values. However, if {@link
 * #weakKeys} was specified, the cache uses identity ({@code ==}) comparisons instead for keys.
 * Likewise, if {@link #weakValues} or {@link #softValues} was specified, the cache uses identity
 * comparisons for values.
 *

import org.codelibs.fesen.client.EngineInfo;
import org.codelibs.fesen.client.HttpClient;
import org.codelibs.fess.Constants;
import org.codelibs.fess.app.web.base.login.FessLoginAssist;
import org.codelibs.fess.entity.FacetInfo;
import org.codelibs.fess.entity.GeoInfo;
import org.codelibs.fess.entity.HighlightInfo;
import org.codelibs.fess.entity.PingResponse;
import org.codelibs.fess.entity.QueryContext;