Merge pull request #99 from wenshao/master

add StatFilter testcase
2023-03-04 19:17:16 +00:00 · 2012-08-27 17:29:18 -07:00
parent 22dda86b3d 8f06ed2f7e
commit 1341ddea35
8 changed files with 858 additions and 2 deletions
@@ -0,0 +1,104 @@
+package com.alibaba.druid.bvt.filter;
+
+import java.sql.Blob;
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.filter.FilterAdapter;
+import com.alibaba.druid.filter.FilterChain;
+import com.alibaba.druid.mock.MockBlob;
+import com.alibaba.druid.mock.MockClob;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.proxy.jdbc.ClobProxyImpl;
+import com.alibaba.druid.proxy.jdbc.ResultSetProxy;
+import com.alibaba.druid.stat.JdbcSqlStat;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class StatFilterOpenBlobCountTest extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setFilters("stat");
+        dataSource.setTestOnBorrow(false);
+        dataSource.getProxyFilters().add(new FilterAdapter() {
+
+            @Override
+            public Blob resultSet_getBlob(FilterChain chain, ResultSetProxy result, int columnIndex)
+                                                                                                    throws SQLException {
+                return new MockBlob();
+            }
+
+            @Override
+            public Blob resultSet_getBlob(FilterChain chain, ResultSetProxy result, String columnLabel)
+                                                                                                       throws SQLException {
+                return new MockBlob();
+            }
+        });
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_stat() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getBlob(1);
+        rs.getBlob(2);
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(2, sqlStat.getBlobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+    }
+
+    public void test_stat_1() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getBlob("1");
+        rs.getBlob("2");
+        rs.getBlob("3");
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(3, sqlStat.getBlobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+    }
+}
@@ -0,0 +1,171 @@
+package com.alibaba.druid.bvt.filter;
+
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Collections;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.filter.FilterAdapter;
+import com.alibaba.druid.filter.FilterChain;
+import com.alibaba.druid.mock.MockBlob;
+import com.alibaba.druid.mock.MockClob;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.proxy.jdbc.ClobProxyImpl;
+import com.alibaba.druid.proxy.jdbc.ResultSetProxy;
+import com.alibaba.druid.stat.JdbcSqlStat;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class StatFilterOpenBlobCountTest2 extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setFilters("stat");
+        dataSource.setTestOnBorrow(false);
+        dataSource.getProxyFilters().add(new FilterAdapter() {
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, int columnIndex)
+                                                                                                        throws SQLException {
+                return new MockBlob();
+            }
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, String columnLabel)
+                                                                                                           throws SQLException {
+                return new MockBlob();
+            }
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, int columnIndex,
+                                              java.util.Map<String, Class<?>> map) throws SQLException {
+                return new MockBlob();
+            }
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, String columnIndex,
+                                              java.util.Map<String, Class<?>> map) throws SQLException {
+                return new MockBlob();
+            }
+        });
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_stat() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject(1);
+        rs.getObject(2);
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(2, sqlStat.getBlobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+    }
+
+    public void test_stat_1() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject("1");
+        rs.getObject("2");
+        rs.getObject("3");
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(3, sqlStat.getBlobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+    }
+
+    public void test_stat_2() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject(1, Collections.<String, Class<?>> emptyMap());
+        rs.getObject(2, Collections.<String, Class<?>> emptyMap());
+        rs.getObject(3, Collections.<String, Class<?>> emptyMap());
+        rs.getObject(4, Collections.<String, Class<?>> emptyMap());
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(4, sqlStat.getBlobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+    }
+
+    public void test_stat_4() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject("1", Collections.<String, Class<?>> emptyMap());
+        rs.getObject("2", Collections.<String, Class<?>> emptyMap());
+        rs.getObject("3", Collections.<String, Class<?>> emptyMap());
+        rs.getObject("4", Collections.<String, Class<?>> emptyMap());
+        rs.getObject("5", Collections.<String, Class<?>> emptyMap());
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(5, sqlStat.getBlobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getBlobOpenCount());
+    }
+}
@@ -0,0 +1,104 @@
+package com.alibaba.druid.bvt.filter;
+
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.filter.FilterAdapter;
+import com.alibaba.druid.filter.FilterChain;
+import com.alibaba.druid.mock.MockClob;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.proxy.jdbc.ClobProxyImpl;
+import com.alibaba.druid.proxy.jdbc.ResultSetProxy;
+import com.alibaba.druid.stat.JdbcSqlStat;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class StatFilterOpenClobCountTest extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setFilters("stat");
+        dataSource.setTestOnBorrow(false);
+        dataSource.getProxyFilters().add(new FilterAdapter() {
+
+            @Override
+            public Clob resultSet_getClob(FilterChain chain, ResultSetProxy result, int columnIndex)
+                                                                                                    throws SQLException {
+                return new ClobProxyImpl(result.getStatementProxy().getConnectionProxy().getDirectDataSource(),
+                                         result.getStatementProxy().getConnectionProxy(), new MockClob());
+            }
+
+            @Override
+            public Clob resultSet_getClob(FilterChain chain, ResultSetProxy result, String columnLabel)
+                                                                                                       throws SQLException {
+                return new ClobProxyImpl(result.getStatementProxy().getConnectionProxy().getDirectDataSource(),
+                                         result.getStatementProxy().getConnectionProxy(), new MockClob());
+            }
+        });
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_stat() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getClob(1);
+        rs.getClob(2);
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(2, sqlStat.getClobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+    }
+
+    public void test_stat_1() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getClob("1");
+        rs.getClob("2");
+        rs.getClob("3");
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(3, sqlStat.getClobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+    }
+}
@@ -0,0 +1,174 @@
+package com.alibaba.druid.bvt.filter;
+
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.Collections;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.filter.FilterAdapter;
+import com.alibaba.druid.filter.FilterChain;
+import com.alibaba.druid.mock.MockClob;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.proxy.jdbc.ClobProxyImpl;
+import com.alibaba.druid.proxy.jdbc.ResultSetProxy;
+import com.alibaba.druid.stat.JdbcSqlStat;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class StatFilterOpenClobCountTest2 extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setFilters("stat");
+        dataSource.setTestOnBorrow(false);
+        dataSource.getProxyFilters().add(new FilterAdapter() {
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, int columnIndex)
+                                                                                                      throws SQLException {
+                return new ClobProxyImpl(result.getStatementProxy().getConnectionProxy().getDirectDataSource(),
+                                         result.getStatementProxy().getConnectionProxy(), new MockClob());
+            }
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, String columnLabel)
+                                                                                                         throws SQLException {
+                return new ClobProxyImpl(result.getStatementProxy().getConnectionProxy().getDirectDataSource(),
+                                         result.getStatementProxy().getConnectionProxy(), new MockClob());
+            }
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, int columnIndex,
+                                              java.util.Map<String, Class<?>> map) throws SQLException {
+                return new ClobProxyImpl(result.getStatementProxy().getConnectionProxy().getDirectDataSource(),
+                                         result.getStatementProxy().getConnectionProxy(), new MockClob());
+            }
+
+            @Override
+            public Object resultSet_getObject(FilterChain chain, ResultSetProxy result, String columnIndex,
+                                              java.util.Map<String, Class<?>> map) throws SQLException {
+                return new ClobProxyImpl(result.getStatementProxy().getConnectionProxy().getDirectDataSource(),
+                                         result.getStatementProxy().getConnectionProxy(), new MockClob());
+            }
+        });
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_stat() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject(1);
+        rs.getObject(2);
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(2, sqlStat.getClobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+    }
+
+    public void test_stat_1() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject("1");
+        rs.getObject("2");
+        rs.getObject("3");
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(3, sqlStat.getClobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+    }
+    
+    public void test_stat_2() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject(1, Collections.<String,Class<?>>emptyMap());
+        rs.getObject(2, Collections.<String,Class<?>>emptyMap());
+        rs.getObject(3, Collections.<String,Class<?>>emptyMap());
+        rs.getObject(4, Collections.<String,Class<?>>emptyMap());
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(4, sqlStat.getClobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+    }
+    
+    public void test_stat_4() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getObject("1", Collections.<String,Class<?>>emptyMap());
+        rs.getObject("2", Collections.<String,Class<?>>emptyMap());
+        rs.getObject("3", Collections.<String,Class<?>>emptyMap());
+        rs.getObject("4", Collections.<String,Class<?>>emptyMap());
+        rs.getObject("5", Collections.<String,Class<?>>emptyMap());
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(5, sqlStat.getClobOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getClobOpenCount());
+    }
+}
@@ -0,0 +1,100 @@
+package com.alibaba.druid.bvt.filter;
+
+import java.io.ByteArrayInputStream;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.filter.FilterAdapter;
+import com.alibaba.druid.filter.FilterChain;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.proxy.jdbc.ResultSetProxy;
+import com.alibaba.druid.stat.JdbcSqlStat;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class StatFilterOpenInputStreamCountTest extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setFilters("stat");
+        dataSource.setTestOnBorrow(false);
+        dataSource.getProxyFilters().add(new FilterAdapter() {
+
+            @Override
+            public java.io.InputStream resultSet_getBinaryStream(FilterChain chain, ResultSetProxy result, int columnIndex)
+                                                                                                                           throws SQLException {
+                return new ByteArrayInputStream(new byte[0]);
+            }
+
+            @Override
+            public java.io.InputStream resultSet_getBinaryStream(FilterChain chain, ResultSetProxy result, String columnLabel)
+                                                                                                                              throws SQLException {
+                return new ByteArrayInputStream(new byte[0]);
+            }
+        });
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_stat() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getBinaryStream(1);
+        rs.getBinaryStream(2);
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(2, sqlStat.getInputStreamOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+    }
+
+    public void test_stat_1() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getBinaryStream("1");
+        rs.getBinaryStream("2");
+        rs.getBinaryStream("3");
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(3, sqlStat.getInputStreamOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+    }
+}
@@ -0,0 +1,101 @@
+package com.alibaba.druid.bvt.filter;
+
+import java.io.ByteArrayInputStream;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.filter.FilterAdapter;
+import com.alibaba.druid.filter.FilterChain;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.proxy.jdbc.ResultSetProxy;
+import com.alibaba.druid.stat.JdbcSqlStat;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class StatFilterOpenInputStreamCountTest2 extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setFilters("stat");
+        dataSource.setTestOnBorrow(false);
+        dataSource.getProxyFilters().add(new FilterAdapter() {
+
+            @Override
+            public java.io.InputStream resultSet_getAsciiStream(FilterChain chain, ResultSetProxy result,
+                                                                int columnIndex) throws SQLException {
+                return new ByteArrayInputStream(new byte[0]);
+            }
+
+            @Override
+            public java.io.InputStream resultSet_getAsciiStream(FilterChain chain, ResultSetProxy result,
+                                                                String columnLabel) throws SQLException {
+                return new ByteArrayInputStream(new byte[0]);
+            }
+
+        });
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_stat() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getAsciiStream(1);
+        rs.getAsciiStream(2);
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(2, sqlStat.getInputStreamOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+    }
+
+    public void test_stat_1() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getAsciiStream("1");
+        rs.getAsciiStream("2");
+        rs.getAsciiStream("3");
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(3, sqlStat.getInputStreamOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getInputStreamOpenCount());
+    }
+}
@@ -0,0 +1,102 @@
+package com.alibaba.druid.bvt.filter;
+
+import java.io.ByteArrayInputStream;
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+
+import org.nutz.lang.stream.StringReader;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+import com.alibaba.druid.filter.FilterAdapter;
+import com.alibaba.druid.filter.FilterChain;
+import com.alibaba.druid.pool.DruidDataSource;
+import com.alibaba.druid.proxy.jdbc.ResultSetProxy;
+import com.alibaba.druid.stat.JdbcSqlStat;
+import com.alibaba.druid.util.JdbcUtils;
+
+public class StatFilterOpenReaderCountTest extends TestCase {
+
+    private DruidDataSource dataSource;
+
+    protected void setUp() throws Exception {
+        dataSource = new DruidDataSource();
+
+        dataSource.setUrl("jdbc:mock:xxx");
+        dataSource.setFilters("stat");
+        dataSource.setTestOnBorrow(false);
+        dataSource.getProxyFilters().add(new FilterAdapter() {
+
+            @Override
+            public java.io.Reader resultSet_getCharacterStream(FilterChain chain, ResultSetProxy result, int columnIndex)
+                                                                                                                         throws SQLException {
+                return new StringReader("");
+            }
+
+            @Override
+            public java.io.Reader resultSet_getCharacterStream(FilterChain chain, ResultSetProxy result, String columnLabel)
+                                                                                                                            throws SQLException {
+                return new StringReader("");
+            }
+        });
+        dataSource.init();
+    }
+
+    protected void tearDown() throws Exception {
+        JdbcUtils.close(dataSource);
+    }
+
+    public void test_stat() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getReaderOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getCharacterStream(1);
+        rs.getCharacterStream(2);
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(2, sqlStat.getReaderOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getReaderOpenCount());
+    }
+
+    public void test_stat_1() throws Exception {
+        Connection conn = dataSource.getConnection();
+
+        String sql = "select 'x'";
+        PreparedStatement stmt = conn.prepareStatement("select 'x'");
+
+        JdbcSqlStat sqlStat = dataSource.getDataSourceStat().getSqlStat(sql);
+
+        Assert.assertEquals(0, sqlStat.getReaderOpenCount());
+
+        ResultSet rs = stmt.executeQuery();
+        rs.next();
+        rs.getCharacterStream("1");
+        rs.getCharacterStream("2");
+        rs.getCharacterStream("3");
+        rs.close();
+        stmt.close();
+
+        conn.close();
+
+        Assert.assertEquals(3, sqlStat.getReaderOpenCount());
+
+        sqlStat.reset();
+        Assert.assertEquals(0, sqlStat.getReaderOpenCount());
+    }
+}
@@ -68,7 +68,7 @@ public class StatFilterReadBytesLengthTest extends TestCase {

        Assert.assertEquals(0, sqlStat.getReadStringLength());
        Assert.assertEquals(6, sqlStat.getReadBytesLength());
-        
+
        sqlStat.reset();
        Assert.assertEquals(0, sqlStat.getReadStringLength());
        Assert.assertEquals(0, sqlStat.getReadBytesLength());
@@ -95,7 +95,7 @@ public class StatFilterReadBytesLengthTest extends TestCase {

        Assert.assertEquals(0, sqlStat.getReadStringLength());
        Assert.assertEquals(7, sqlStat.getReadBytesLength());
-        
+
        sqlStat.reset();
        Assert.assertEquals(0, sqlStat.getReadStringLength());
        Assert.assertEquals(0, sqlStat.getReadBytesLength());