code: package it.unibz.inf.ontop.docker;
  
  /*
   * #%L
   * ontop-test
   * %%
   * Copyright (C) 2009 - 2014 Free University of Bozen-Bolzano
   * %%
   * 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.
   * #L%
   */
  
  import com.google.common.base.Joiner;
  import junit.framework.TestCase;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.sql.*;
  import java.util.Properties;
  
  public abstract class AbstractDbMetadataInfoTest extends TestCase {
  	
  	private final String propertyFile;
  	private Properties properties;
  
  	private static final Logger log = LoggerFactory.getLogger(AbstractDbMetadataInfoTest.class);
  
  	public AbstractDbMetadataInfoTest(String propertyFile) {
  		this.propertyFile = propertyFile;
  	}
  
  	@Override
  	public void setUp() throws IOException, SQLException {
  		InputStream pStream = this.getClass().getResourceAsStream(propertyFile);
  		properties = new Properties();
  		properties.load(pStream);
  		Connection conn = DriverManager.getConnection(getConnectionString(), getConnectionUsername(), getConnectionPassword());
  	}
  	
  	public void testPropertyInfo() throws SQLException {
  		final Driver driver = DriverManager.getDriver(getConnectionString());
  
  		DriverPropertyInfo[] propInfo;
  		try {
  			propInfo = driver.getPropertyInfo(getConnectionString(), null);
  		}
  		catch (RuntimeException err) {
  			// Some drivers (Sun's ODBC-JDBC) throw null pointer exceptions ...
  			// Try again, but with an empty properties ...
  			propInfo = driver.getPropertyInfo(getConnectionString(), new Properties());
  		}
  
  		for (DriverPropertyInfo info : propInfo) {
  			String choices = (info.choices == null)
  					? ""
  					: "[" + Joiner.on(", ").join(info.choices) + "]";
  
  			log.info("{} : {} : {} : {} : {}", info.name, info.value, choices, info.required, info.description);
  		}
  	}
  
  	public String getConnectionPassword() {
  		return properties.getProperty("jdbc.password");
  	}
  
  	public String getConnectionString() {
  		return properties.getProperty("jdbc.url");
  	}
  
  	public String getConnectionUsername() {
  		return properties.getProperty("jdbc.user");
  	}
  }
  