import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.timer.TimeoutTarget;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.action.admin.cluster.node.stats.NodeStats;
import org.opensearch.action.admin.cluster.node.stats.NodesStatsResponse;

        }
        try {
            searchEngineClient.flushConfigFiles(() -> {
                final String docIndex = fessConfig.getIndexDocumentUpdateIndex();
                searchEngineClient.admin().indices().prepareClose(docIndex).execute(ActionListener.wrap(res -> {
                    logger.info("Closing index: {}", docIndex);

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.fess.Constants;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.action.admin.cluster.node.hotthreads.NodesHotThreadsResponse;
import org.opensearch.common.unit.TimeValue;

/**

        contentFieldList = Arrays.asList(stream(fessConfig.getSuggestFieldContents()).get(stream -> stream.toArray(n -> new String[n])));

        final SearchEngineClient searchEngineClient = ComponentUtil.getSearchEngineClient();
        searchEngineClient.admin()
                .cluster()
                .prepareHealth()
                .setWaitForYellowStatus()
                .execute()

    private static final Logger logger = LogManager.getLogger(ThumbnailGenerator.class);

    /**
     * OpenSearch client for accessing indexed documents.
     */
    @Resource
    public SearchEngineClient searchEngineClient;

    /**
     * Default constructor for ThumbnailGenerator.
     */
    public ThumbnailGenerator() {
        // Default constructor
    }

    /**

import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
import java.util.function.Consumer;

import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.opensearch.config.exbhv.BadWordBhv;
import org.codelibs.fess.opensearch.config.exbhv.ElevateWordBhv;
import org.codelibs.fess.opensearch.config.exentity.BadWord;

            }

            try {
                final SearchEngineClient searchEngineClient = ComponentUtil.getSearchEngineClient();
                final String index = fessConfig.getIndexDocumentUpdateIndex();
                searchEngineClient.admin().indices().prepareRefresh(index).execute().actionGet();
                final long numOfDeleted = searchEngineClient.deleteByQuery(index, queryBuilder);

    /** Configuration settings for Fess application */
    @Resource
    protected FessConfig fessConfig;

    /** Client for interacting with the search engine */
    @Resource
    protected SearchEngineClient searchEngineClient;

    /**
     * Retrieves a paginated list of elevate words based on the provided pager criteria.
     *
     * @param elevateWordPager the pager containing pagination and filtering criteria

        ComponentUtil.register(new SystemHelper(), "systemHelper");
        ComponentUtil.register(new SearchEngineClient() {
            @Override
            public boolean existsIndex(final String indexName) {
                return false;
            }
        }, "searchEngineClient");

        String result = logNotificationJob.execute();
        assertEquals("No log notifications.", result);
    }

    /** List of crawler session IDs to process */
    protected List<String> sessionIdList;

    /** OpenSearch client for index operations */
    @Resource
    protected SearchEngineClient searchEngineClient;

    /** Service for managing crawled document data */
    @Resource
    protected DataService<OpenSearchAccessResult> dataService;

    /** Service for managing URL crawling queue */
    @Resource