*/
    public void waitForNoWaitingThreads() {
        int count = waitingThreadNames.size();
        while (count > 0) {
            if (logger.isInfoEnabled()) {
                logger.info("{} waiting thread(s).", count);
            }
            ThreadUtil.sleep(systemCpuCheckInterval);
            count = waitingThreadNames.size();
        }
    }

    /**

- **Custom Systems** - REST API for bulk document indexing

---

## Pre-Migration Planning

### 1. Assessment Phase

Before starting migration, assess your current system:

- **Document Count**: Total number of indexed documents
- **Index Size**: Storage requirements for search indices
- **Crawl Sources**: URLs, file shares, databases being indexed
- **Custom Configurations**: URL patterns, security rules, metadata fields

        }
        esCb.request().build(builder);
        SearchResponse response = esCb.build(builder).execute().actionGet(scrollSearchTimeout);
        String scrollId = response.getScrollId();
        int count = 0;
        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();

        assertEquals(Relation.GREATER_THAN_OR_EQUAL_TO.toString(), result.getAllRecordCountRelation());
    }

    /**
     * Test SearchResult with zero record count.
     */
    @Test
    public void test_zeroRecordCount() {
        final SearchResult result = SearchResult.create().allRecordCount(0).build();

        assertEquals(0, result.getAllRecordCount());

        return "Mem:{used " + byteCountToDisplaySize(usedBytes) + ", heap " + byteCountToDisplaySize(totalBytes) + ", max "
                + byteCountToDisplaySize(maxBytes) + "}";
    }

    /**
     * Converts byte count to human-readable size format.
     *
     * @param size the size in bytes
     * @return formatted size string
     */
    public static String byteCountToDisplaySize(final long size) {

        }
        esCb.request().build(builder);
        SearchResponse response = esCb.build(builder).execute().actionGet(scrollSearchTimeout);
        String scrollId = response.getScrollId();
        int count = 0;
        try {
            while (scrollId != null) {
                final SearchHits searchHits = getSearchHits(response);
                final SearchHit[] hits = searchHits.getHits();

        request.setParameter("facet.size", "100");
        request.setParameter("facet.minDocCount", "5");
        request.setParameter("facet.sort", "count");
        request.setParameter("facet.missing", "other");

        FacetInfo facetInfo = searchRequestParams.createFacetInfo(request);
        assertNotNull(facetInfo);
        assertEquals(2, facetInfo.field.length);

    /** The suggest helper for managing suggest functionality. */
    @Resource
    protected SuggestHelper suggestHelper;

    /**
     * Retrieves suggest statistics including word counts.
     *
     * @return JSON response containing suggest statistics
     */
    // GET /api/admin/suggest
    @Execute
    public JsonResponse<ApiResult> get$index() {

import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;

/**
 * Filter for rate limiting to protect against bot attacks and excessive requests.
 * Tracks request counts per IP address and blocks excessive requests based on configurable thresholds.
 */
public class RateLimitFilter implements Filter {

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

        regA(builder);
        return builder;
    }

    protected ValueCountAggregationBuilder regCountA(String name, String field) {
        ValueCountAggregationBuilder builder = AggregationBuilders.count(name).field(field);
        regA(builder);
        return builder;
    }

    protected TermsAggregationBuilder regTermsA(String name, String field) {