/**
*
* 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.infrastructure.event.domain.factory;
import org.qi4j.api.common.AppliesTo;
import org.qi4j.api.concern.GenericConcern;
import org.qi4j.api.entity.EntityComposite;
import org.qi4j.api.injection.scope.Service;
import org.qi4j.api.injection.scope.This;
import se.streamsource.streamflow.infrastructure.event.domain.DomainEvent;
import java.lang.reflect.Method;
/**
* Generate event for event method
*/
@AppliesTo(EventMethodFilter.class)
public class EventCreationConcern
extends GenericConcern
{
@This
EntityComposite entity;
@Service
DomainEventFactory domainEventFactory;
public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable
{
if (args[0] == null)
{
// Create event
DomainEvent event = domainEventFactory.createEvent( entity, method.getName(), args );
args[0] = event;
}
return next.invoke( proxy, method, args );
}
}