/*
* Copyright (C) 2013 Brett Wooldridge
*
* 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.
*/
package com.zaxxer.hikari.hibernate;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.service.UnknownUnwrapTypeException;
import org.hibernate.service.spi.Configurable;
import org.hibernate.service.spi.Stoppable;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.zaxxer.hikari.HikariConfig;
import com.zaxxer.hikari.HikariDataSource;
/**
* Connection provider for Hibernate 4.3.
*
* @author Brett Wooldridge, Luca Burgazzoli
*/
public class HikariConnectionProvider implements ConnectionProvider, Configurable, Stoppable
{
private static final long serialVersionUID = -9131625057941275711L;
private static final Logger LOGGER = LoggerFactory.getLogger(HikariConnectionProvider.class);
/**
* HikariCP configuration.
*/
private HikariConfig hcfg;
/**
* HikariCP data source.
*/
private HikariDataSource hds;
// *************************************************************************
//
// *************************************************************************
/**
* c-tor
*/
public HikariConnectionProvider()
{
this.hcfg = null;
this.hds = null;
}
// *************************************************************************
// Configurable
// *************************************************************************
@SuppressWarnings("rawtypes")
@Override
public void configure(Map props) throws HibernateException
{
try {
LOGGER.debug("Configuring HikariCP");
this.hcfg = HikariConfigurationUtil.loadConfiguration(props);
this.hds = new HikariDataSource(this.hcfg);
}
catch (Exception e) {
throw new HibernateException(e);
}
LOGGER.debug("HikariCP Configured");
}
// *************************************************************************
// ConnectionProvider
// *************************************************************************
@Override
public Connection getConnection() throws SQLException
{
Connection conn = null;
if (this.hds != null) {
conn = this.hds.getConnection();
}
return conn;
}
@Override
public void closeConnection(Connection conn) throws SQLException
{
conn.close();
}
@Override
public boolean supportsAggressiveRelease()
{
return false;
}
@Override
@SuppressWarnings("rawtypes")
public boolean isUnwrappableAs(Class unwrapType)
{
return ConnectionProvider.class.equals(unwrapType) || HikariConnectionProvider.class.isAssignableFrom(unwrapType);
}
@Override
@SuppressWarnings("unchecked")
public <T> T unwrap(Class<T> unwrapType)
{
if (isUnwrappableAs(unwrapType)) {
return (T) this;
}
else {
throw new UnknownUnwrapTypeException(unwrapType);
}
}
// *************************************************************************
// Stoppable
// *************************************************************************
@Override
public void stop()
{
this.hds.close();
}
}