io.shardingjdbc.core.rule.DataNode Maven / Gradle / Ivy
/*
* Copyright 1999-2015 dangdang.com.
*
* 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.
*
*/
package io.shardingjdbc.core.rule;
import com.google.common.base.Splitter;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import lombok.RequiredArgsConstructor;
import lombok.ToString;
import java.util.List;
/**
* Sharding data unit node.
*
* @author zhangliang
*/
@RequiredArgsConstructor
@Getter
@EqualsAndHashCode
@ToString
public class DataNode {
private static final String DELIMITER = ".";
private final String dataSourceName;
private final String tableName;
/**
* Constructs a data node with well-formatted string.
*
* @param dataNode string of data node. use {@code .} to split data source name and table name.
*/
public DataNode(final String dataNode) {
List segments = Splitter.on(DELIMITER).splitToList(dataNode);
dataSourceName = segments.get(0);
tableName = segments.get(1);
}
/**
* Adjust the format of data node string is valid or not.
*
* @param dataNodeStr string to be adjusted
* @return format of data node string is valid or not
*/
public static boolean isValidDataNode(final String dataNodeStr) {
return dataNodeStr.contains(DELIMITER) && 2 == Splitter.on(DELIMITER).splitToList(dataNodeStr).size();
}
}