/**
* Copyright 2010-2016 the original author or authors.
* <p>
* 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
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* 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 com.baomidou.mybatisplus;
import static java.lang.reflect.Proxy.newProxyInstance;
import static org.springframework.util.Assert.notNull;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.sql.Connection;
import java.util.List;
import java.util.Map;
import org.apache.ibatis.cursor.Cursor;
import org.apache.ibatis.executor.BatchResult;
import org.apache.ibatis.session.Configuration;
import org.apache.ibatis.session.ExecutorType;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.mybatis.spring.MyBatisExceptionTranslator;
import org.springframework.beans.factory.DisposableBean;
import org.springframework.dao.support.PersistenceExceptionTranslator;
import com.baomidou.mybatisplus.exceptions.MybatisPlusException;
/**
* Copy SqlSessionTemplate
*
* @see org.mybatis.spring.SqlSessionTemplate
*/
public class MybatisSqlSessionTemplate implements SqlSession, DisposableBean {
private final SqlSessionFactory sqlSessionFactory;
private final ExecutorType executorType;
private final SqlSession sqlSessionProxy;
private final PersistenceExceptionTranslator exceptionTranslator;
/**
* Constructs a Spring managed SqlSession with the {@code SqlSessionFactory}
* provided as an argument.
*
* @param sqlSessionFactory
*/
public MybatisSqlSessionTemplate(SqlSessionFactory sqlSessionFactory) {
this(sqlSessionFactory, sqlSessionFactory.getConfiguration().getDefaultExecutorType());
}
/**
* Constructs a Spring managed SqlSession with the {@code SqlSessionFactory}
* provided as an argument and the given {@code ExecutorType}
* {@code ExecutorType} cannot be changed once the
* {@code SqlSessionTemplate} is constructed.
*
* @param sqlSessionFactory
* @param executorType
*/
public MybatisSqlSessionTemplate(SqlSessionFactory sqlSessionFactory, ExecutorType executorType) {
this(sqlSessionFactory, executorType, new MyBatisExceptionTranslator(sqlSessionFactory.getConfiguration()
.getEnvironment().getDataSource(), true));
}
/**
* Constructs a Spring managed {@code SqlSession} with the given
* {@code SqlSessionFactory} and {@code ExecutorType}. A custom
* {@code SQLExceptionTranslator} can be provided as an argument so any
* {@code PersistenceException} thrown by MyBatis can be custom translated
* to a {@code RuntimeException} The {@code SQLExceptionTranslator} can also
* be null and thus no exception translation will be done and MyBatis
* exceptions will be thrown
*
* @param sqlSessionFactory
* @param executorType
* @param exceptionTranslator
*/
public MybatisSqlSessionTemplate(SqlSessionFactory sqlSessionFactory, ExecutorType executorType,
PersistenceExceptionTranslator exceptionTranslator) {
notNull(sqlSessionFactory, "Property 'sqlSessionFactory' is required");
notNull(executorType, "Property 'executorType' is required");
this.sqlSessionFactory = sqlSessionFactory;
this.executorType = executorType;
this.exceptionTranslator = exceptionTranslator;
this.sqlSessionProxy = (SqlSession) newProxyInstance(SqlSessionFactory.class.getClassLoader(),
new Class[]{SqlSession.class}, new SqlSessionInterceptor());
}
public SqlSessionFactory getSqlSessionFactory() {
return this.sqlSessionFactory;
}
public ExecutorType getExecutorType() {
return this.executorType;
}
public PersistenceExceptionTranslator getPersistenceExceptionTranslator() {
return this.exceptionTranslator;
}
/**
* {@inheritDoc}
*/
public <T> T selectOne(String statement) {
return this.sqlSessionProxy.<T>selectOne(statement);
}
/**
* {@inheritDoc}
*/
public <T> T selectOne(String statement, Object parameter) {
return this.sqlSessionProxy.<T>selectOne(statement, parameter);
}
/**
* {@inheritDoc}
*/
public <K, V> Map<K, V> selectMap(String statement, String mapKey) {
return this.sqlSessionProxy.<K, V>selectMap(statement, mapKey);
}
/**
* {@inheritDoc}
*/
public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey) {
return this.sqlSessionProxy.<K, V>selectMap(statement, parameter, mapKey);
}
/**
* {@inheritDoc}
*/
public <K, V> Map<K, V> selectMap(String statement, Object parameter, String mapKey, RowBounds rowBounds) {
return this.sqlSessionProxy.<K, V>selectMap(statement, parameter, mapKey, rowBounds);
}
/**
* {@inheritDoc}
*/
public <T> Cursor<T> selectCursor(String statement) {
return this.sqlSessionProxy.selectCursor(statement);
}
/**
* {@inheritDoc}
*/
public <T> Cursor<T> selectCursor(String statement, Object parameter) {
return this.sqlSessionProxy.selectCursor(statement, parameter);
}
/**
* {@inheritDoc}
*/
public <T> Cursor<T> selectCursor(String statement, Object parameter, RowBounds rowBounds) {
return this.sqlSessionProxy.selectCursor(statement, parameter, rowBounds);
}
/**
* {@inheritDoc}
*/
public <E> List<E> selectList(String statement) {
return this.sqlSessionProxy.<E>selectList(statement);
}
/**
* {@inheritDoc}
*/
public <E> List<E> selectList(String statement, Object parameter) {
return this.sqlSessionProxy.<E>selectList(statement, parameter);
}
/**
* {@inheritDoc}
*/
public <E> List<E> selectList(String statement, Object parameter, RowBounds rowBounds) {
return this.sqlSessionProxy.<E>selectList(statement, parameter, rowBounds);
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("rawtypes")
public void select(String statement, ResultHandler handler) {
this.sqlSessionProxy.select(statement, handler);
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("rawtypes")
public void select(String statement, Object parameter, ResultHandler handler) {
this.sqlSessionProxy.select(statement, parameter, handler);
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("rawtypes")
public void select(String statement, Object parameter, RowBounds rowBounds, ResultHandler handler) {
this.sqlSessionProxy.select(statement, parameter, rowBounds, handler);
}
/**
* {@inheritDoc}
*/
public int insert(String statement) {
return this.sqlSessionProxy.insert(statement);
}
/**
* {@inheritDoc}
*/
public int insert(String statement, Object parameter) {
return this.sqlSessionProxy.insert(statement, parameter);
}
/**
* {@inheritDoc}
*/
public int update(String statement) {
return this.sqlSessionProxy.update(statement);
}
/**
* {@inheritDoc}
*/
public int update(String statement, Object parameter) {
return this.sqlSessionProxy.update(statement, parameter);
}
/**
* {@inheritDoc}
*/
public int delete(String statement) {
return this.sqlSessionProxy.delete(statement);
}
/**
* {@inheritDoc}
*/
public int delete(String statement, Object parameter) {
return this.sqlSessionProxy.delete(statement, parameter);
}
/**
* {@inheritDoc}
*/
public <T> T getMapper(Class<T> type) {
return getConfiguration().getMapper(type, this);
}
/**
* {@inheritDoc}
*/
public void commit() {
throw new UnsupportedOperationException("Manual commit is not allowed over a Spring managed SqlSession");
}
/**
* {@inheritDoc}
*/
public void commit(boolean force) {
throw new UnsupportedOperationException("Manual commit is not allowed over a Spring managed SqlSession");
}
/**
* {@inheritDoc}
*/
public void rollback() {
throw new UnsupportedOperationException("Manual rollback is not allowed over a Spring managed SqlSession");
}
/**
* {@inheritDoc}
*/
public void rollback(boolean force) {
throw new UnsupportedOperationException("Manual rollback is not allowed over a Spring managed SqlSession");
}
/**
* {@inheritDoc}
*/
public void close() {
throw new UnsupportedOperationException("Manual close is not allowed over a Spring managed SqlSession");
}
/**
* {@inheritDoc}
*/
public void clearCache() {
this.sqlSessionProxy.clearCache();
}
/**
* {@inheritDoc}
*/
public Configuration getConfiguration() {
return this.sqlSessionFactory.getConfiguration();
}
/**
* {@inheritDoc}
*/
public Connection getConnection() {
return this.sqlSessionProxy.getConnection();
}
/**
* {@inheritDoc}
*
* @since 1.0.2
*/
public List<BatchResult> flushStatements() {
return this.sqlSessionProxy.flushStatements();
}
/**
* Allow gently dispose bean:
* <p>
* <p>
* <pre>
* {@code
*
* <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
* <constructor-arg index="0" ref="sqlSessionFactory" />
* </bean>
* }
* </pre>
* <p>
* The implementation of {@link DisposableBean} forces spring context to use
* {@link DisposableBean#destroy()} method instead of
* {@link MybatisSqlSessionTemplate#close()} to shutdown gently.
*
* @see MybatisSqlSessionTemplate#close()
* @see org.springframework.beans.factory.support.DisposableBeanAdapter#inferDestroyMethodIfNecessary
* @see org.springframework.beans.factory.support.DisposableBeanAdapter#CLOSE_METHOD_NAME
*/
public void destroy() throws Exception {
// This method forces spring disposer to avoid call of
// SqlSessionTemplate.close() which gives UnsupportedOperationException
}
/**
* Proxy needed to route MyBatis method calls to the proper SqlSession got
* from Spring's Transaction Manager It also unwraps exceptions thrown by
* {@code Method#invoke(Object, Object...)} to pass a
* {@code PersistenceException} to the
* {@code PersistenceExceptionTranslator}.
*/
private class SqlSessionInterceptor implements InvocationHandler {
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
SqlSession sqlSession = MybatisSqlSessionTemplate.this.sqlSessionFactory
.openSession(MybatisSqlSessionTemplate.this.executorType);
try {
Object result = method.invoke(sqlSession, args);
sqlSession.commit(true);
return result;
} catch (Throwable t) {
throw new MybatisPlusException(t);
} finally {
if (sqlSession != null) {
sqlSession.close();
}
}
}
}
}