import org.opensearch.core.action.ActionListener;
import org.opensearch.index.query.BoolQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryBuilders;
import org.opensearch.index.query.functionscore.FunctionScoreQueryBuilder;
import org.opensearch.index.query.functionscore.ScoreFunctionBuilders;
import org.opensearch.search.SearchHit;

    public PopularWordsRequestBuilder addExcludeWord(final String excludeWord) {
        request.addExcludeWord(excludeWord);
        return this;
    }

    /**
     * Sets the query frequency threshold.
     * @param queryFreqThreshold The query frequency threshold.
     * @return This builder instance.
     */
    public PopularWordsRequestBuilder setQueryFreqThreshold(final int queryFreqThreshold) {

suggester.indexer()
    .indexFromDocument(reader, 2, 100)  // threads=2, batch=100
    .getResponse();
```

### Index from Query Logs

```java
import org.codelibs.fess.suggest.index.contents.querylog.QueryLog;

// Add suggestions from search query logs
QueryLog queryLog = new QueryLog("user search query", "user123");
suggester.indexer().indexFromQueryLog(queryLog);
```

### Popular Words Analytics

```java

                }

                items.add(new SuggestItem(words, readings, new String[] { field }, 0, 1, -1, tags, roles, null, SuggestItem.Kind.QUERY));
            }
        } catch (final IOException e) {
            throw new SuggesterException("Failed to create SuggestItem from query log.", e);
        }

        return items;
    }

    @Override

    /**
     * Deletes documents from the specified index based on the given query.
     *
     * @param client the OpenSearch client to use for the operation
     * @param settings the suggest settings to apply
     * @param index the name of the index from which documents will be deleted
     * @param queryBuilder the query that defines which documents to delete

 */
public class SuggestItem {

    /**
     * The kind of suggest item.
     */
    public enum Kind {
        /** Document kind. */
        DOCUMENT("document"),
        /** Query kind. */
        QUERY("query"),
        /** User kind. */
        USER("user");

        private final String kind;

        /**
         * Constructor for Kind.
         * @param kind The kind string.
         */

 */
package org.codelibs.fess.suggest.index.writer;

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;

/**
 * SuggestBulkFileWriter is an implementation of the SuggestWriter interface.
 * This class is responsible for writing and deleting suggest items in bulk.

        assertEquals("http://localhost/", HcHttpClient.constructRedirectLocation("http://localhost/", ""));
        assertEquals("http://localhost/?query=value", HcHttpClient.constructRedirectLocation("http://localhost/", "?query=value"));
        assertEquals("http://localhost/#section1", HcHttpClient.constructRedirectLocation("http://localhost/", "#section1"));

import org.opensearch.action.index.IndexRequestBuilder;
import org.opensearch.common.unit.TimeValue;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.transport.client.Client;

/**
 * SuggestIndexWriter is an implementation of the SuggestWriter interface that provides methods to write, delete,
 * and delete by query suggest items in an OpenSearch index.
 */
public class SuggestIndexWriter implements SuggestWriter {
    /**

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.