/**
*
* Copyright
* 2009-2015 Jayway Products AB
* 2016-2017 Föreningen Sambruk
*
* Licensed under AGPL, Version 3.0 (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.gnu.org/licenses/agpl.txt
*
* 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 se.streamsource.streamflow.web.infrastructure.database;
import java.net.ConnectException;
import java.sql.Connection;
import java.sql.SQLException;
import javax.sql.DataSource;
import liquibase.Liquibase;
import liquibase.database.DatabaseConnection;
import liquibase.database.jvm.JdbcConnection;
import liquibase.resource.ClassLoaderResourceAccessor;
import org.qi4j.api.configuration.Configuration;
import org.qi4j.api.injection.scope.Service;
import org.qi4j.api.injection.scope.This;
import org.qi4j.api.mixin.Mixins;
import org.qi4j.api.service.Activatable;
import org.qi4j.api.service.ServiceComposite;
import org.qi4j.api.service.ServiceImporterException;
import org.qi4j.api.service.ServiceReference;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Wrapper service for LiquiBase
*/
@Mixins(LiquibaseService.Mixin.class)
public interface LiquibaseService
extends Activatable, ServiceComposite, Configuration
{
class Mixin
implements Activatable
{
@This
Configuration<LiquibaseConfiguration> config;
@Service
ServiceReference<DataSource> dataSource;
public void activate() throws Exception
{
Logger log = LoggerFactory.getLogger( LiquibaseService.class.getName() );
boolean enabled = config.configuration().enabled().get();
if (!enabled || !dataSource.isAvailable())
{
return;
}
Connection c = null;
try
{
c = dataSource.get().getConnection();
DatabaseConnection dc = new JdbcConnection(c);
Liquibase liquibase = new Liquibase( config.configuration().changeLog().get(),
new ClassLoaderResourceAccessor(),dc );
liquibase.update( config.configuration().contexts().get() );
}
catch (SQLException e)
{
Throwable ex = e;
while (ex.getCause() != null)
ex = ex.getCause();
if (ex instanceof ConnectException)
{
log.warn( "Could not connect to database; LiquiBase should be disabled" );
return;
}
log.error( "LiquiBase could not perform database migration", e );
if (c != null)
try
{
c.rollback();
c.close();
}
catch (SQLException ex1)
{
}
} catch (ServiceImporterException ex)
{
log.warn( "DataSource is not available - database refactoring skipped" );
}
}
public void passivate() throws Exception
{
}
}
}