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Show all versions of schemacrawler Show documentation
SchemaCrawler is an open-source Java API that makes working with database metadata as easy as working with plain old Java objects. SchemaCrawler is also a database schema discovery and comprehension, and schema documentation tool. You can search for database schema objects using regular expressions, and output the schema and data in a readable text format. The output is designed to be diff-ed against other database schemas.
/*
========================================================================
SchemaCrawler
http://www.schemacrawler.com
Copyright (c) 2000-2024, Sualeh Fatehi .
All rights reserved.
------------------------------------------------------------------------
SchemaCrawler 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.
SchemaCrawler and the accompanying materials are made available under
the terms of the Eclipse Public License v1.0, GNU General Public License
v3 or GNU Lesser General Public License v3.
You may elect to redistribute this code under any of these licenses.
The Eclipse Public License is available at:
http://www.eclipse.org/legal/epl-v10.html
The GNU General Public License v3 and the GNU Lesser General Public
License v3 are available at:
http://www.gnu.org/licenses/
========================================================================
*/
package us.fatehi.utility.datasource;
import static java.util.Objects.requireNonNull;
import static us.fatehi.utility.Utility.requireNotBlank;
import java.sql.Connection;
import java.util.Map;
import java.util.Properties;
import java.util.function.Consumer;
import java.util.logging.Level;
import java.util.logging.Logger;
import us.fatehi.utility.SQLRuntimeException;
import us.fatehi.utility.string.StringFormat;
final class SingleDatabaseConnectionSource extends AbstractDatabaseConnectionSource {
private static final Logger LOGGER =
Logger.getLogger(SingleDatabaseConnectionSource.class.getName());
private final Connection connection;
SingleDatabaseConnectionSource(
final String connectionUrl,
final Map connectionProperties,
final UserCredentials userCredentials,
final Consumer connectionInitializer) {
super(connectionInitializer);
requireNotBlank(connectionUrl, "No database connection URL provided");
requireNonNull(userCredentials, "No user credentials provided");
final String user = userCredentials.getUser();
final String password = userCredentials.getPassword();
final Properties jdbcConnectionProperties =
createConnectionProperties(connectionUrl, connectionProperties, user, password);
connection = getConnection(connectionUrl, jdbcConnectionProperties);
}
@Override
public void close() throws Exception {
connection.close();
}
@Override
public Connection get() {
connectionInitializer.accept(connection);
LOGGER.log(
Level.FINE,
new StringFormat(
"Initialized database connection <%s> with <%s>", connection, connectionInitializer));
return PooledConnectionUtility.newPooledConnection(connection, this);
}
@Override
public boolean releaseConnection(final Connection connection) {
// No-op
return true;
}
@Override
protected void finalize() throws Throwable {
// Assert that all connections are closed
if (!connection.isClosed()) {
throw new SQLRuntimeException("Connection pool is not closed");
}
super.finalize();
}
}