import java.net.UnknownHostException;
import java.nio.charset.StandardCharsets;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.function.BiConsumer;
import java.util.function.BiFunction;
import java.util.function.Function;

            buf.append((obj));
        } else if (obj instanceof Boolean) {
            buf.append(obj.toString());
        } else if (obj instanceof Date) {
            final SimpleDateFormat sdf = new SimpleDateFormat(CoreLibConstants.DATE_FORMAT_ISO_8601_EXTEND, Locale.ROOT);
            buf.append('\"').append(StringEscapeUtils.escapeJson(sdf.format(obj))).append('\"');
        } else {

    }

    public void setQueryRequestedAt_GreaterThan(LocalDateTime queryRequestedAt, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = toRangeLocalDateTimeString(queryRequestedAt, "date_optional_time");
        RangeQueryBuilder builder = regRangeQ("queryRequestedAt", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

        Set<String> fieldSet = (Set<String>) propMap.get(INDEX_ADMIN_DATE_FIELD_SET);
        if (fieldSet == null) {
            fieldSet = split(getIndexAdminDateFields(), ",")
                    .get(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).collect(Collectors.toSet()));
            propMap.put(INDEX_ADMIN_DATE_FIELD_SET, fieldSet);
        }
        return fieldSet;
    }