import org.codelibs.fess.suggest.index.writer.SuggestWriter;
import org.codelibs.fess.suggest.index.writer.SuggestWriterResult;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.opensearch.transport.client.Client;

/**
 * Internal operations class for core indexing functionality.
 * Handles indexing of SuggestItem objects with bad word filtering.
 *

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

import java.util.HashMap;
import java.util.Locale;
import java.util.Map;

import org.opensearch.transport.client.Client;

/**
 * Builder class for constructing SuggestSettings instances.
 */
public class SuggestSettingsBuilder {
    /**
     * Constructs a new {@link SuggestSettingsBuilder}.
     */

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.request.popularwords;

import org.codelibs.fess.suggest.request.RequestBuilder;
import org.opensearch.transport.client.Client;

/**
 * Builder for creating a {@link PopularWordsRequest} to fetch popular words.
 * This builder provides methods to set various parameters for the request.
 */

import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.codelibs.fess.suggest.entity.SuggestItem;
import org.codelibs.fess.suggest.settings.SuggestSettings;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.transport.client.Client;

/**
 * Interface for writing suggest items.
 */
public interface SuggestWriter {
    /**
     * Writes the given suggest items to the specified index.
     *

import java.util.List;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.suggest.exception.SuggestSettingsException;
import org.opensearch.core.common.Strings;
import org.opensearch.transport.client.Client;

/**
 * The BadWordSettings class manages the settings related to bad words.
 * It allows adding, deleting, and retrieving bad words from the settings.

import org.opensearch.common.lucene.search.function.CombineFunction;
import org.opensearch.common.lucene.search.function.FieldValueFactorFunction;
import org.opensearch.common.lucene.search.function.FunctionScoreQuery;
import org.opensearch.core.common.Strings;
import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;

import org.opensearch.action.search.SearchResponse;
import org.opensearch.cluster.metadata.AliasMetadata;
import org.opensearch.common.xcontent.XContentType;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.transport.client.Client;

/**
 * The Suggester class provides functionality for managing and querying suggestion indices.

import org.codelibs.fess.suggest.converter.ReadingConverter;
import org.codelibs.fess.suggest.normalizer.Normalizer;
import org.codelibs.fess.suggest.request.RequestBuilder;
import org.opensearch.transport.client.Client;

/**
 * Builder class for constructing {@link SuggestRequest} instances.
 * This builder provides methods to set various parameters for the suggest request.
 */

import org.codelibs.fess.suggest.util.SuggestUtil;
import org.opensearch.action.search.SearchResponse;
import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.Operator;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.search.SearchHit;
import org.opensearch.transport.client.Client;

/**

import com.fasterxml.jackson.databind.ObjectMapper;

import jakarta.annotation.PostConstruct;
import jakarta.annotation.PreDestroy;

/**
 * Helper for inter-instance coordination via OpenSearch.
 * Provides heartbeat registration, distributed operation locking, and event notification
 * to prevent concurrent execution of maintenance operations across multiple Fess instances.
 */
public class CoordinatorHelper {