package com.alibaba.druid.bvt.pool;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import junit.framework.TestCase;
import org.junit.Assert;
import com.alibaba.druid.filter.FilterAdapter;
import com.alibaba.druid.filter.FilterChain;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.pool.DruidPooledConnection;
import com.alibaba.druid.proxy.jdbc.ConnectionProxy;
/**
* 这个场景测试initialSize > maxActive
*
* @author wenshao<szujobs@hotmail.com>
*/
public class DruidDataSourceTest_recycle2 extends TestCase {
private DruidDataSource dataSource;
protected void setUp() throws Exception {
dataSource = new DruidDataSource();
dataSource.setUrl("jdbc:mock:xxx");
dataSource.setTestOnBorrow(false);
dataSource.getProxyFilters().add(new FilterAdapter() {
public void connection_rollback(FilterChain chain, ConnectionProxy connection) throws SQLException {
throw new SQLException();
}
});
}
protected void tearDown() throws Exception {
dataSource.close();
}
public void test_recycle() throws Exception {
DruidPooledConnection conn = dataSource.getConnection();
Statement stmt = conn.createStatement();
stmt.execute("select 1");
Assert.assertEquals(0, dataSource.getPoolingCount());
Assert.assertEquals(1, dataSource.getActiveCount());
conn.close();
Assert.assertEquals(1, dataSource.getPoolingCount());
Assert.assertEquals(0, dataSource.getActiveCount());
}
public void test_recycle_error() throws Exception {
DruidPooledConnection conn = dataSource.getConnection();
conn.setAutoCommit(false);
conn.setReadOnly(false);
Statement stmt = conn.createStatement();
stmt.execute("select 1");
Assert.assertEquals(0, dataSource.getPoolingCount());
Assert.assertEquals(1, dataSource.getActiveCount());
Exception error = null;
try {
conn.close();
} catch (Exception e) {
error = e;
}
Assert.assertNull(error);
{
Connection conn2 = dataSource.getConnection();
conn2.close();
}
Assert.assertEquals(1, dataSource.getPoolingCount());
Assert.assertEquals(0, dataSource.getActiveCount());
}
public void test_recycle_error_interrupt() throws Exception {
final AtomicReference<Exception> errorRef = new AtomicReference<Exception>();
final CountDownLatch closeBeforeLatch = new CountDownLatch(1);
final CountDownLatch lockLatch = new CountDownLatch(1);
final CountDownLatch endLatch = new CountDownLatch(1);
Thread thread = new Thread() {
public void run() {
try {
DruidPooledConnection conn = dataSource.getConnection();
conn.setAutoCommit(false);
conn.setReadOnly(false);
Statement stmt = conn.createStatement();
stmt.execute("select 1");
Assert.assertEquals(0, dataSource.getPoolingCount());
Assert.assertEquals(1, dataSource.getActiveCount());
closeBeforeLatch.countDown();
lockLatch.await();
conn.close();
} catch (Exception e) {
errorRef.set(e);
} finally {
endLatch.countDown();
}
}
};
thread.start();
Assert.assertTrue(closeBeforeLatch.await(1, TimeUnit.SECONDS));
dataSource.getLock().lock();
lockLatch.countDown();
Thread.sleep(10);
thread.interrupt();
Assert.assertTrue(endLatch.await(1, TimeUnit.MINUTES));
Exception error = errorRef.get();
Assert.assertNull(error);
}
}