MyBatisAutoConfiguration.java

/*
 * Copyright 2015-2016 http://hsweb.me
 *
 * 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 org.hsweb.web.mybatis;

import org.apache.ibatis.mapping.DatabaseIdProvider;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.TransactionIsolationLevel;
import org.apache.ibatis.transaction.Transaction;
import org.hsweb.web.mybatis.dynamic.DynamicDataSourceSqlSessionFactoryBuilder;
import org.hsweb.web.mybatis.dynamic.DynamicSpringManagedTransaction;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.boot.autoconfigure.SpringBootVFS;
import org.mybatis.spring.transaction.SpringManagedTransactionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.StringUtils;

import javax.sql.DataSource;

@Configuration
@EnableConfigurationProperties(MybatisProperties.class)
@ConditionalOnClass({SqlSessionFactory.class, SqlSessionFactoryBean.class})
public class MyBatisAutoConfiguration {

    @Autowired
    private MybatisProperties properties;

    @Autowired(required = false)
    private Interceptor[] interceptors;

    @Autowired
    private ResourceLoader resourceLoader = new DefaultResourceLoader();

    @Autowired(required = false)
    private DatabaseIdProvider databaseIdProvider;

    @Bean(name = "sqlSessionFactory")
    public SqlSessionFactory sqlSessionFactory(@Qualifier("dataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean factory = new SqlSessionFactoryBean();
        factory.setVfs(SpringBootVFS.class);
        if (properties.isDynamicDatasource()) {
            factory.setSqlSessionFactoryBuilder(new DynamicDataSourceSqlSessionFactoryBuilder());
            factory.setTransactionFactory(new SpringManagedTransactionFactory() {
                @Override
                public Transaction newTransaction(DataSource dataSource, TransactionIsolationLevel level, boolean autoCommit) {
                    return new DynamicSpringManagedTransaction();
                }
            });
        }
        factory.setDataSource(dataSource);
        if (StringUtils.hasText(this.properties.getConfigLocation())) {
            factory.setConfigLocation(this.resourceLoader.getResource(this.properties
                    .getConfigLocation()));
        }
        if (this.interceptors != null && this.interceptors.length > 0) {
            factory.setPlugins(this.interceptors);
        }
        if (this.databaseIdProvider != null) {
            factory.setDatabaseIdProvider(this.databaseIdProvider);
        }
        factory.setTypeAliasesPackage(this.properties.getTypeAliasesPackage());
        String typeHandlers = "org.hsweb.web.mybatis.handler";
        if (this.properties.getTypeHandlersPackage() != null) {
            typeHandlers = typeHandlers + ";" + this.properties.getTypeHandlersPackage();
        }
        factory.setTypeHandlersPackage(typeHandlers);
        factory.setMapperLocations(this.properties.resolveMapperLocations());
        return factory.getObject();
    }

}