Multiple DataSource on springboot

DataSourceType.java

package com.kakao.order.common.config.database;

/**
 * Created by jaceshim on 2017. 8. 23..
 */
public enum DataSourceType {
	WRITE, READ
}

OrderDataSourceConfig.java

package com.kakao.order.common.config.database;

import javax.sql.DataSource;
import java.util.HashMap;
import java.util.Map;

import com.zaxxer.hikari.HikariDataSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.LazyConnectionDataSourceProxy;

/**
 * Created by jaceshim on 2017. 8. 23..
 */
@Configuration
public class OrderDataSourceConfig {
	private Logger log = LoggerFactory.getLogger(OrderDataSourceConfig.class);

	@Bean(destroyMethod = "shutdown")
	public DataSource readDataSource() {
		// TODO: read용 datasource얻기.
		return null;
	}

	@Bean(destroyMethod = "shutdown")
	public DataSource writeDataSource() {
		// TODO: write용 datasource얻기.		
		return null;
	}

	@Bean
	public DataSource routingDataSource(DataSource writeDataSource, DataSource readDataSource) {
		RoutingDataSource routingDataSource = new RoutingDataSource();

		Map<Object, Object> dataSourceMap = new HashMap<>();
		dataSourceMap.put(DataSourceType.WRITE.name(), writeDataSource);
		dataSourceMap.put(DataSourceType.READ.name(), readDataSource);

		routingDataSource.setTargetDataSources(dataSourceMap);
		routingDataSource.setDefaultTargetDataSource(writeDataSource);

		return routingDataSource;
	}

	@Bean
	public DataSource dataSource(DataSource routingDataSource) {
		return new LazyConnectionDataSourceProxy(routingDataSource);
	}
}

RoutingDataSource.java

package com.kakao.order.common.config.database;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;
import org.springframework.transaction.support.TransactionSynchronizationManager;

/**
 * {@link org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource}와
 * {@link org.springframework.transaction.support.TransactionSynchronizationManager}를 통해
 * Transaction의 readOnly 값에 따라 DataSource를 선택
 */
public class RoutingDataSource extends AbstractRoutingDataSource {
	private Logger log = LoggerFactory.getLogger(RoutingDataSource.class);

	@Override
	protected Object determineCurrentLookupKey() {
		DataSourceType dataSourceType
			= TransactionSynchronizationManager.isCurrentTransactionReadOnly() ? DataSourceType.READ : DataSourceType.WRITE;
		log.info("current data source type : {}", dataSourceType.name());
		return dataSourceType;
	}
}