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

    public static class ApiStatsResponse extends ApiResponse {
        protected Map<String, Object> stats;

        public ApiStatsResponse stats(final Map<String, Object> stats) {
            this.stats = stats;
            return this;
        }

        @Override

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.es.client.SearchEngineClient;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;