org.geotools.data.jdbc.ds.UnWrapperTest.java Source code

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Here is the source code for org.geotools.data.jdbc.ds.UnWrapperTest.java

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/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 * 
 *    (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package org.geotools.data.jdbc.ds;

import java.io.IOException;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;

import junit.framework.TestCase;

import org.apache.commons.dbcp.BasicDataSource;
import org.geotools.data.jdbc.datasource.DataSourceFinder;
import org.geotools.data.jdbc.datasource.UnWrapper;

/**
 * 
 *
 * @source $URL$
 */
public class UnWrapperTest extends TestCase {

    public void testDBCPUnwrapper() throws SQLException, IOException {
        BasicDataSource ds = new BasicDataSource();
        ds.setDriverClassName("org.h2.Driver");
        ds.setUrl("jdbc:h2:mem:test_mem");
        ds.setAccessToUnderlyingConnectionAllowed(true);

        Connection conn = ds.getConnection();
        UnWrapper uw = DataSourceFinder.getUnWrapper(conn);
        assertNotNull(uw);
        assertTrue(uw.canUnwrap(conn));
        Connection unwrapped = uw.unwrap(conn);
        assertNotNull(unwrapped);
        assertTrue(unwrapped instanceof org.h2.jdbc.JdbcConnection);

        Statement st = conn.createStatement();
        uw = DataSourceFinder.getUnWrapper(st);
        assertNotNull(uw);
        assertTrue(uw.canUnwrap(st));
        Statement uwst = uw.unwrap(st);
        assertNotNull(uwst);
        assertTrue(uwst instanceof org.h2.jdbc.JdbcStatement);
        st.close();

        PreparedStatement ps = conn.prepareStatement("select curtime()");
        uw = DataSourceFinder.getUnWrapper(ps);
        assertNotNull(uw);
        assertTrue(uw.canUnwrap(ps));
        PreparedStatement uwps = (PreparedStatement) uw.unwrap(ps);
        assertNotNull(uwps);
        assertTrue(uwps instanceof org.h2.jdbc.JdbcPreparedStatement);
        ps.close();

        conn.close();
        ds.close();
    }
}