/*
* Copyright 1999-2015 dangdang.com.
* <p>
* Licensed 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.
* </p>
*/
package com.dangdang.ddframe.rdb.sharding.api.rule;
import com.google.common.base.Splitter;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.ToString;
import java.util.List;
/**
* 分库分表数据单元.
*
* @author zhangliang
*/
@RequiredArgsConstructor
@Getter
@EqualsAndHashCode
@ToString
public class DataNode {
private static final String DELIMITER = ".";
private final String dataSourceName;
private final String tableName;
public DataNode(final String dataNode) {
List<String> segments = Splitter.on(DELIMITER).splitToList(dataNode);
dataSourceName = segments.get(0);
tableName = segments.get(1);
}
/**
* 判断字符串是否为合法的分库分表数据单元字符串.
*
* @param dataNodeStr 待判断的字符串
* @return 是否为合法的分库分表数据单元字符串
*/
public static boolean isValidDataNode(final String dataNodeStr) {
return dataNodeStr.contains(DELIMITER) && 2 == Splitter.on(DELIMITER).splitToList(dataNodeStr).size();
}
}