x7.repository.util.IdFixedShardingUtil Maven / Gradle / Ivy

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/*
 * 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 x7.repository.util;

import java.util.ArrayList;
import java.util.List;

public class IdFixedShardingUtil {

	public static List listBeginEnd(long minId, long maxId, long count, long rowsOfSharding){
		
		List list = new ArrayList();
		
		long testCount = maxId - minId + 2;
		
		System.out.println("__testCount = " + testCount);
		
		long size = count / rowsOfSharding + (count%rowsOfSharding == 0 ? 0 : 1);
		
		System.out.println("__size = " + size);
		
		long shardingNum = size == 0 ? 1 : testCount / size;
		
		System.out.println("__ShardingNum = " + shardingNum);
		
		for (int i=0; i