/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.test.cache.infinispan.functional.cluster;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.service.UnknownUnwrapTypeException;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.service.spi.Configurable;
import org.hibernate.service.spi.Stoppable;
import org.hibernate.testing.env.ConnectionProviderBuilder;
/**
* A {@link ConnectionProvider} implementation adding JTA-style transactionality around the returned
* connections using the {@link DualNodeJtaTransactionManagerImpl}.
*
* @author Brian Stansberry
*/
public class DualNodeConnectionProviderImpl implements ConnectionProvider, Configurable {
private static ConnectionProvider actualConnectionProvider = ConnectionProviderBuilder.buildConnectionProvider();
private String nodeId;
private boolean isTransactional;
@Override
public boolean isUnwrappableAs(Class unwrapType) {
return DualNodeConnectionProviderImpl.class.isAssignableFrom( unwrapType ) ||
ConnectionProvider.class.isAssignableFrom( unwrapType );
}
@Override
@SuppressWarnings( {"unchecked"})
public <T> T unwrap(Class<T> unwrapType) {
if ( DualNodeConnectionProviderImpl.class.isAssignableFrom( unwrapType ) ) {
return (T) this;
}
else if ( ConnectionProvider.class.isAssignableFrom( unwrapType ) ) {
return (T) actualConnectionProvider;
}
else {
throw new UnknownUnwrapTypeException( unwrapType );
}
}
public static ConnectionProvider getActualConnectionProvider() {
return actualConnectionProvider;
}
public void setNodeId(String nodeId) throws HibernateException {
if (nodeId == null) {
throw new HibernateException( "nodeId not configured" );
}
this.nodeId = nodeId;
}
public Connection getConnection() throws SQLException {
DualNodeJtaTransactionImpl currentTransaction = DualNodeJtaTransactionManagerImpl
.getInstance(nodeId).getCurrentTransaction();
if (currentTransaction == null) {
isTransactional = false;
return actualConnectionProvider.getConnection();
} else {
isTransactional = true;
Connection connection = currentTransaction.getEnlistedConnection();
if (connection == null) {
connection = actualConnectionProvider.getConnection();
currentTransaction.enlistConnection(connection);
}
return connection;
}
}
public void closeConnection(Connection conn) throws SQLException {
if (!isTransactional) {
conn.close();
}
}
public void close() throws HibernateException {
if ( actualConnectionProvider instanceof Stoppable ) {
( ( Stoppable ) actualConnectionProvider ).stop();
}
}
public boolean supportsAggressiveRelease() {
return true;
}
@Override
public void configure(Map configurationValues) {
nodeId = (String) configurationValues.get( "nodeId" );
}
}