/*
* Copyright 2014 mango.jfaster.org
*
* The Mango Project licenses this file to you 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.jfaster.mango.transaction;
import org.jfaster.mango.annotation.DB;
import org.jfaster.mango.annotation.SQL;
import org.jfaster.mango.datasource.AbstractDataSourceFactory;
import org.jfaster.mango.operator.Mango;
import org.jfaster.mango.support.DataSourceConfig;
import org.jfaster.mango.support.Table;
import org.jfaster.mango.support.model4table.Account;
import org.junit.Before;
import org.junit.Test;
import javax.sql.DataSource;
import java.sql.Connection;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.hamcrest.CoreMatchers.nullValue;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
/**
* 测试事务
*
* @author ash
*/
public class TransactionTest {
private final static DataSource ds = DataSourceConfig.getDataSource();
private final static Mango mango = Mango.newInstance(ds);
private final static AccountDao dao = mango.create(AccountDao.class);
@Before
public void before() throws Exception {
Connection conn = ds.getConnection();
Table.ACCOUNT.load(conn);
conn.close();
}
@Test
public void testCommit() throws Exception {
int previousLevel = getPreviousLevel();
Account x = new Account(1, 1000);
Account y = new Account(2, 2000);
dao.insert(x);
dao.insert(y);
int num = 50;
x.add(num);
y.sub(num);
TransactionIsolationLevel level = TransactionIsolationLevel.SERIALIZABLE;
Transaction tx = TransactionFactory.newTransaction(mango, AbstractDataSourceFactory.DEFULT_NAME, level);
ConnectionHolder connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, notNullValue());
assertThat(connHolder.getConnection(), notNullValue());
dao.update(x);
checkConn(connHolder.getConnection(), false, level.getLevel());
dao.update(y);
checkConn(connHolder.getConnection(), false, level.getLevel());
tx.commit();
connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, nullValue());
Connection conn = ds.getConnection();
checkConn(conn, true, previousLevel);
conn.close();
assertThat(dao.getAccount(1), equalTo(x));
assertThat(dao.getAccount(2), equalTo(y));
}
@Test
public void testRollback() throws Exception {
int previousLevel = getPreviousLevel();
Account x = new Account(1, 1000);
Account y = new Account(2, 2000);
dao.insert(x);
dao.insert(y);
int num = 50;
x.add(num);
y.sub(num);
TransactionIsolationLevel level = TransactionIsolationLevel.SERIALIZABLE;
Transaction tx = TransactionFactory.newTransaction(mango, AbstractDataSourceFactory.DEFULT_NAME, level);
ConnectionHolder connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, notNullValue());
assertThat(connHolder.getConnection(), notNullValue());
dao.update(x);
checkConn(connHolder.getConnection(), false, level.getLevel());
dao.update(y);
checkConn(connHolder.getConnection(), false, level.getLevel());
tx.rollback();
connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, nullValue());
Connection conn = ds.getConnection();
checkConn(conn, true, previousLevel);
conn.close();
x.sub(num);
y.add(num);
assertThat(dao.getAccount(1), equalTo(x));
assertThat(dao.getAccount(2), equalTo(y));
}
@Test
public void testRollback2() throws Exception {
int previousLevel = getPreviousLevel();
Account x = new Account(1, 1000);
Account y = new Account(2, 2000);
dao.insert(x);
dao.insert(y);
int num = 50;
x.add(num);
y.sub(num);
TransactionIsolationLevel level = TransactionIsolationLevel.SERIALIZABLE;
Transaction tx = TransactionFactory.newTransaction(mango, AbstractDataSourceFactory.DEFULT_NAME, level);
ConnectionHolder connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, notNullValue());
assertThat(connHolder.getConnection(), notNullValue());
dao.update(x);
checkConn(connHolder.getConnection(), false, level.getLevel());
tx.rollback();
connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, nullValue());
Connection conn = ds.getConnection();
checkConn(conn, true, previousLevel);
conn.close();
x.sub(num);
y.add(num);
assertThat(dao.getAccount(1), equalTo(x));
assertThat(dao.getAccount(2), equalTo(y));
}
@Test
public void testCommitEmpty() throws Exception {
int previousLevel = getPreviousLevel();
TransactionIsolationLevel level = TransactionIsolationLevel.SERIALIZABLE;
Transaction tx = TransactionFactory.newTransaction(mango, AbstractDataSourceFactory.DEFULT_NAME, level);
ConnectionHolder connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, notNullValue());
assertThat(connHolder.getConnection(), notNullValue());
tx.commit();
connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, nullValue());
Connection conn = ds.getConnection();
checkConn(conn, true, previousLevel);
conn.close();
}
@Test
public void testRollbackEmpty() throws Exception {
int previousLevel = getPreviousLevel();
TransactionIsolationLevel level = TransactionIsolationLevel.SERIALIZABLE;
Transaction tx = TransactionFactory.newTransaction(mango, AbstractDataSourceFactory.DEFULT_NAME, level);
ConnectionHolder connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, notNullValue());
assertThat(connHolder.getConnection(), notNullValue());
tx.rollback();
connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
assertThat(connHolder, nullValue());
Connection conn = ds.getConnection();
checkConn(conn, true, previousLevel);
conn.close();
}
@Test
public void testDefaultLevel() throws Exception {
int previousLevel = getPreviousLevel();
Account x = new Account(1, 1000);
Account y = new Account(2, 2000);
dao.insert(x);
dao.insert(y);
int num = 50;
x.add(num);
y.sub(num);
Transaction tx = TransactionFactory.newTransaction(mango, AbstractDataSourceFactory.DEFULT_NAME);
ConnectionHolder connHolder = TransactionSynchronizationManager.getConnectionHolder(ds);
dao.update(x);
checkConn(connHolder.getConnection(), false, previousLevel);
dao.update(y);
checkConn(connHolder.getConnection(), false, previousLevel);
tx.commit();
Connection conn = ds.getConnection();
checkConn(conn, true, previousLevel);
conn.close();
}
private int getPreviousLevel() throws Exception {
Connection conn = ds.getConnection();
int level = conn.getTransactionIsolation();
conn.close();
return level;
}
private void checkConn(Connection conn, boolean autoCommit, int level) throws Exception {
assertThat(conn.getAutoCommit(), is(autoCommit));
assertThat(conn.getTransactionIsolation(), is(level));
}
@DB(table = "account")
interface AccountDao {
@SQL("insert into #table(id, balance) values(:1.id, :1.balance)")
public int insert(Account account);
@SQL("update #table set balance=:1.balance where id=:1.id")
public int update(Account account);
@SQL("select id, balance from #table where id=:1")
public Account getAccount(int id);
}
}