/**
 * Helper class for managing crawler statistics and performance metrics.
 * This class provides functionality to track, record, and report statistics
 * about crawler operations including timing data, performance metrics, and
 * operational events. It uses an internal cache to maintain statistics
 * objects and provides methods to begin tracking, record events, and
 * finalize statistics collection.
 *
 */

        public JvmGcObj[] gc;
        /** JVM thread statistics */
        public JvmThreadsObj threads;
        /** JVM class loading statistics */
        public JvmClassesObj classes;
        /** JVM uptime in milliseconds */
        public long uptime;
    }

    /**
     * Data transfer object representing JVM memory statistics.
     */
    public static class JvmMemoryObj {
        /**

import java.util.Map;

/**
 * A response list that extends List functionality and includes pagination and search metadata.
 * This class wraps search results with pagination information, facet responses, and query statistics.
 * It implements the List interface to provide standard list operations while adding search-specific
 * functionality such as page navigation, record counts, and query execution times.
 */

     *   <li>Manages concurrent execution based on thread count limits</li>
     *   <li>Monitors thread completion and handles cleanup</li>
     *   <li>Records execution timing and statistics</li>
     * </ul>
     *
     * @param sessionId unique identifier for this crawling session
     * @param configList list of data configurations to crawl
     */

        }
    }

    /**
     * Sends email notification with crawling results and statistics.
     * The email contains detailed information about the crawling session including
     * execution times, index sizes, and status information.
     *
     * @param infoMap map containing crawling session information and statistics
     */
    protected void sendMail(final Map<String, String> infoMap) {

    public static final String USER_CODE = "userCode";

    /** Search query field name for logging. */
    public static final String SEARCH_FIELD_LOG_SEARCH_QUERY = "q";

    /** Statistics report type parameter name. */
    public static final String STATS_REPORT_TYPE = "reportType";

    /** Result document ID cache key. */
    public static final String RESULT_DOC_ID_CACHE = "resultDocIds";

        public ApiResult result() {
            return new ApiResult(this);
        }
    }

    /**
     * Represents an API response containing statistical information.
     */
    public static class ApiStatsResponse extends ApiResponse {
        /** The statistical data. */
        protected Map<String, Object> stats;

        /**
         * Default constructor for ApiStatsResponse.
         */