| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| package org.apache.skywalking.oap.server.core.query; |
| |
| import lombok.Data; |
| import lombok.RequiredArgsConstructor; |
| import org.apache.skywalking.oap.server.core.query.type.Pagination; |
| |
| public enum PaginationUtils { |
| INSTANCE; |
| |
| public Page exchange(Pagination paging) { |
| int limit = paging.getPageSize(); |
| int from = paging.getPageSize() * ((paging.getPageNum() == 0 ? 1 : paging.getPageNum()) - 1); |
| |
| return new Page(from, limit); |
| } |
| |
| @Data |
| @RequiredArgsConstructor |
| public static class Page { |
| private final int from; |
| private final int limit; |
| } |
| } |