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org.apache.ibatis.session.SqlSessionManager Maven / Gradle / Ivy
/**
* Copyright 2009-2017 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 org.apache.ibatis.session;
import java.io.InputStream;
import java.io.Reader;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.sql.Connection;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import org.apache.ibatis.cursor.Cursor;
import org.apache.ibatis.executor.BatchResult;
import org.apache.ibatis.reflection.ExceptionUtil;
/**
* @author Larry Meadors
*/
public class SqlSessionManager implements SqlSessionFactory, SqlSession {
private final SqlSessionFactory sqlSessionFactory;
private final SqlSession sqlSessionProxy;
private final ThreadLocal localSqlSession = new ThreadLocal();
private SqlSessionManager(SqlSessionFactory sqlSessionFactory) {
this.sqlSessionFactory = sqlSessionFactory;
this.sqlSessionProxy = (SqlSession) Proxy.newProxyInstance(
SqlSessionFactory.class.getClassLoader(),
new Class[]{SqlSession.class},
new SqlSessionInterceptor());
}
public static SqlSessionManager newInstance(Reader reader) {
return new SqlSessionManager(new SqlSessionFactoryBuilder().build(reader, null, null));
}
public static SqlSessionManager newInstance(Reader reader, String environment) {
return new SqlSessionManager(new SqlSessionFactoryBuilder().build(reader, environment, null));
}
public static SqlSessionManager newInstance(Reader reader, Properties properties) {
return new SqlSessionManager(new SqlSessionFactoryBuilder().build(reader, null, properties));
}
public static SqlSessionManager newInstance(InputStream inputStream) {
return new SqlSessionManager(new SqlSessionFactoryBuilder().build(inputStream, null, null));
}
public static SqlSessionManager newInstance(InputStream inputStream, String environment) {
return new SqlSessionManager(new SqlSessionFactoryBuilder().build(inputStream, environment, null));
}
public static SqlSessionManager newInstance(InputStream inputStream, Properties properties) {
return new SqlSessionManager(new SqlSessionFactoryBuilder().build(inputStream, null, properties));
}
public static SqlSessionManager newInstance(SqlSessionFactory sqlSessionFactory) {
return new SqlSessionManager(sqlSessionFactory);
}
public void startManagedSession() {
this.localSqlSession.set(openSession());
}
public void startManagedSession(boolean autoCommit) {
this.localSqlSession.set(openSession(autoCommit));
}
public void startManagedSession(Connection connection) {
this.localSqlSession.set(openSession(connection));
}
public void startManagedSession(TransactionIsolationLevel level) {
this.localSqlSession.set(openSession(level));
}
public void startManagedSession(ExecutorType execType) {
this.localSqlSession.set(openSession(execType));
}
public void startManagedSession(ExecutorType execType, boolean autoCommit) {
this.localSqlSession.set(openSession(execType, autoCommit));
}
public void startManagedSession(ExecutorType execType, TransactionIsolationLevel level) {
this.localSqlSession.set(openSession(execType, level));
}
public void startManagedSession(ExecutorType execType, Connection connection) {
this.localSqlSession.set(openSession(execType, connection));
}
public boolean isManagedSessionStarted() {
return this.localSqlSession.get() != null;
}
@Override
public SqlSession openSession() {
return sqlSessionFactory.openSession();
}
@Override
public SqlSession openSession(boolean autoCommit) {
return sqlSessionFactory.openSession(autoCommit);
}
@Override
public SqlSession openSession(Connection connection) {
return sqlSessionFactory.openSession(connection);
}
@Override
public SqlSession openSession(TransactionIsolationLevel level) {
return sqlSessionFactory.openSession(level);
}
@Override
public SqlSession openSession(ExecutorType execType) {
return sqlSessionFactory.openSession(execType);
}
@Override
public SqlSession openSession(ExecutorType execType, boolean autoCommit) {
return sqlSessionFactory.openSession(execType, autoCommit);
}
@Override
public SqlSession openSession(ExecutorType execType, TransactionIsolationLevel level) {
return sqlSessionFactory.openSession(execType, level);
}
@Override
public SqlSession openSession(ExecutorType execType, Connection connection) {
return sqlSessionFactory.openSession(execType, connection);
}
@Override
public Configuration getConfiguration() {
return sqlSessionFactory.getConfiguration();
}
@Override
public T selectOne(String statement) {
return sqlSessionProxy. selectOne(statement);
}
@Override
public T selectOne(String statement, Object parameter) {
return sqlSessionProxy. selectOne(statement, parameter);
}
@Override
public Map selectMap(String statement, String mapKey) {
return sqlSessionProxy. selectMap(statement, mapKey);
}
@Override
public Map selectMap(String statement, Object parameter, String mapKey) {
return sqlSessionProxy. selectMap(statement, parameter, mapKey);
}
@Override
public Map selectMap(String statement, Object parameter, String mapKey, RowBounds rowBounds) {
return sqlSessionProxy. selectMap(statement, parameter, mapKey, rowBounds);
}
@Override
public Cursor selectCursor(String statement) {
return sqlSessionProxy.selectCursor(statement);
}
@Override
public Cursor selectCursor(String statement, Object parameter) {
return sqlSessionProxy.selectCursor(statement, parameter);
}
@Override
public Cursor selectCursor(String statement, Object parameter, RowBounds rowBounds) {
return sqlSessionProxy.selectCursor(statement, parameter, rowBounds);
}
@Override
public List selectList(String statement) {
return sqlSessionProxy. selectList(statement);
}
@Override
public List selectList(String statement, Object parameter) {
return sqlSessionProxy. selectList(statement, parameter);
}
@Override
public List selectList(String statement, Object parameter, RowBounds rowBounds) {
return sqlSessionProxy. selectList(statement, parameter, rowBounds);
}
@Override
public void select(String statement, ResultHandler handler) {
sqlSessionProxy.select(statement, handler);
}
@Override
public void select(String statement, Object parameter, ResultHandler handler) {
sqlSessionProxy.select(statement, parameter, handler);
}
@Override
public void select(String statement, Object parameter, RowBounds rowBounds, ResultHandler handler) {
sqlSessionProxy.select(statement, parameter, rowBounds, handler);
}
@Override
public int insert(String statement) {
return sqlSessionProxy.insert(statement);
}
@Override
public int insert(String statement, Object parameter) {
return sqlSessionProxy.insert(statement, parameter);
}
@Override
public int update(String statement) {
return sqlSessionProxy.update(statement);
}
@Override
public int update(String statement, Object parameter) {
return sqlSessionProxy.update(statement, parameter);
}
@Override
public int delete(String statement) {
return sqlSessionProxy.delete(statement);
}
@Override
public int delete(String statement, Object parameter) {
return sqlSessionProxy.delete(statement, parameter);
}
@Override
public T getMapper(Class type) {
return getConfiguration().getMapper(type, this);
}
@Override
public Connection getConnection() {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot get connection. No managed session is started.");
}
return sqlSession.getConnection();
}
@Override
public void clearCache() {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot clear the cache. No managed session is started.");
}
sqlSession.clearCache();
}
@Override
public void commit() {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot commit. No managed session is started.");
}
sqlSession.commit();
}
@Override
public void commit(boolean force) {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot commit. No managed session is started.");
}
sqlSession.commit(force);
}
@Override
public void rollback() {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot rollback. No managed session is started.");
}
sqlSession.rollback();
}
@Override
public void rollback(boolean force) {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot rollback. No managed session is started.");
}
sqlSession.rollback(force);
}
@Override
public List flushStatements() {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot rollback. No managed session is started.");
}
return sqlSession.flushStatements();
}
@Override
public void close() {
final SqlSession sqlSession = localSqlSession.get();
if (sqlSession == null) {
throw new SqlSessionException("Error: Cannot close. No managed session is started.");
}
try {
sqlSession.close();
} finally {
localSqlSession.set(null);
}
}
private class SqlSessionInterceptor implements InvocationHandler {
public SqlSessionInterceptor() {
// Prevent Synthetic Access
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
final SqlSession sqlSession = SqlSessionManager.this.localSqlSession.get();
if (sqlSession != null) {
try {
return method.invoke(sqlSession, args);
} catch (Throwable t) {
throw ExceptionUtil.unwrapThrowable(t);
}
} else {
final SqlSession autoSqlSession = openSession();
try {
final Object result = method.invoke(autoSqlSession, args);
autoSqlSession.commit();
return result;
} catch (Throwable t) {
autoSqlSession.rollback();
throw ExceptionUtil.unwrapThrowable(t);
} finally {
autoSqlSession.close();
}
}
}
}
}
