package com.example.demo;

import org.springframework.beans.factory.ObjectProvider;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnSingleCandidate;
import org.springframework.boot.autoconfigure.transaction.TransactionManagerCustomizers;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.PlatformTransactionManager;

import javax.sql.DataSource;

/**
 * @author William.Q
 */
@Configuration
public class DataSourceTransactionManagerConfiguration {

    @Primary
    @Bean
    DataSourceTransactionManager transactionManager(DataSource dataSource,
                                                    ObjectProvider<TransactionManagerCustomizers> transactionManagerCustomizers) {
        DataSourceTransactionManager transactionManager = new DataSourceTransactionManager(dataSource);
        transactionManagerCustomizers.ifAvailable((customizers) -> customizers.customize(transactionManager));
        return transactionManager;
    }

}