io.tiny.mybatis.MybatisAutoConfiguration.java Source code

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Here is the source code for io.tiny.mybatis.MybatisAutoConfiguration.java

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/*
 *    Copyright 2010-2015 the original author or authors.
 *
 *    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.tiny.mybatis;

import com.github.pagehelper.PageHelper;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.SqlSessionFactoryBean;
import org.mybatis.spring.SqlSessionTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
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.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;

import javax.annotation.PostConstruct;
import javax.sql.DataSource;
import java.util.Properties;

@Configuration
@ConditionalOnClass({ SqlSessionFactory.class, SqlSessionFactoryBean.class })
@EnableConfigurationProperties(MybatisProperties.class)
@AutoConfigureAfter(DataSourceAutoConfiguration.class)
public class MybatisAutoConfiguration {

    private static Log log = LogFactory.getLog(MybatisAutoConfiguration.class);

    @Autowired
    private MybatisProperties properties;

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

    @Autowired
    private ResourceLoader resourceLoader = new DefaultResourceLoader();

    @PostConstruct
    public void checkConfigFileExists() {
        if (this.properties.isCheckConfigLocation()) {
            Resource resource = this.resourceLoader.getResource(this.properties.getConfig());
            Assert.state(resource.exists(), "Cannot find config location: " + resource
                    + " (please add config file or check your Mybatis " + "configuration)");
        }
    }

    @Bean(name = "sqlSessionFactory")
    @ConditionalOnMissingBean
    public SqlSessionFactory sqlSessionFactory(DataSource dataSource) throws Exception {
        SqlSessionFactoryBean factory = new SqlSessionFactoryBean();
        factory.setDataSource(dataSource);
        if (StringUtils.hasText(this.properties.getConfig())) {
            factory.setConfigLocation(this.resourceLoader.getResource(this.properties.getConfig()));
        } else {
            if (this.interceptors != null && this.interceptors.length > 0) {
                factory.setPlugins(this.interceptors);
            }
            factory.setTypeAliasesPackage(this.properties.getTypeAliasesPackage());
            factory.setTypeHandlersPackage(this.properties.getTypeHandlersPackage());
            factory.setMapperLocations(this.properties.getMapperLocations());
        }
        return factory.getObject();
    }

    @Bean
    @ConditionalOnMissingBean
    public SqlSessionTemplate sqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
        return new SqlSessionTemplate(sqlSessionFactory, this.properties.getExecutorType());
    }

    /**
     * ?
     */
    @Bean
    public PageHelper pageHelper(DataSource dataSource) {
        log.info("MyBatis?PageHelper");
        PageHelper pageHelper = new PageHelper();
        Properties p = new Properties();
        p.setProperty("offsetAsPageNum", "true");
        p.setProperty("rowBoundsWithCount", "true");
        p.setProperty("reasonable", "true");
        pageHelper.setProperties(p);
        return pageHelper;
    }

}