/*
* Copyright 1999-2011 Alibaba Group Holding Ltd.
*
* 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 com.alibaba.druid.bvt.pool.dynamic;
import java.lang.reflect.Field;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import org.junit.Assert;
import junit.framework.TestCase;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.support.logging.Log;
public class PoolPreparedStatementsChangeTest extends TestCase {
private DruidDataSource dataSource;
private Log dataSourceLog;
protected void setUp() throws Exception {
Field logField = DruidDataSource.class.getDeclaredField("LOG");
logField.setAccessible(true);
dataSourceLog = (Log) logField.get(null);
dataSourceLog.resetStat();
dataSource = new DruidDataSource();
dataSource.setUrl("jdbc:mock:xxx");
dataSource.setTestOnBorrow(false);
dataSource.init();
Assert.assertEquals(1, dataSourceLog.getInfoCount());
}
protected void tearDown() throws Exception {
dataSource.close();
}
public void test_connectPropertiesChange() throws Exception {
{
Connection conn = dataSource.getConnection();
conn.close();
}
Assert.assertEquals(false, dataSource.isPoolPreparedStatements());
dataSource.setPoolPreparedStatements(true);
Assert.assertEquals(true, dataSource.isPoolPreparedStatements());
String sql = "select ?";
Assert.assertEquals(0, dataSource.getCachedPreparedStatementCount());
{
Connection conn = dataSource.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql);
stmt.setString(1, "xxx");
ResultSet rs = stmt.executeQuery();
rs.close();
conn.close();
}
Assert.assertEquals(1, dataSource.getCachedPreparedStatementCount());
Assert.assertEquals(1, dataSource.getCachedPreparedStatementAccessCount());
{
Connection conn = dataSource.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql);
stmt.setString(1, "xxx");
ResultSet rs = stmt.executeQuery();
rs.close();
conn.close();
}
Assert.assertEquals(1, dataSource.getCachedPreparedStatementCount());
Assert.assertEquals(2, dataSource.getCachedPreparedStatementAccessCount());
dataSource.setPoolPreparedStatements(false);
Assert.assertEquals(0, dataSource.getCachedPreparedStatementCount());
Assert.assertEquals(2, dataSource.getCachedPreparedStatementAccessCount());
{
Connection conn = dataSource.getConnection();
PreparedStatement stmt = conn.prepareStatement(sql);
stmt.setString(1, "xxx");
ResultSet rs = stmt.executeQuery();
rs.close();
conn.close();
}
Assert.assertEquals(0, dataSource.getCachedPreparedStatementCount());
Assert.assertEquals(2, dataSource.getCachedPreparedStatementAccessCount());
}
}