* 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.
         */
        public ApiStatsResponse() {
            super();
        }

        /**
         * Sets the statistical data.

import java.io.File;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;

import org.codelibs.fess.app.web.api.ApiResult;
import org.codelibs.fess.app.web.api.ApiResult.ApiStatsResponse;
import org.codelibs.fess.app.web.api.admin.FessApiAdminAction;
import org.codelibs.fess.opensearch.client.SearchEngineClient;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;