| /** |
| * |
| * Copyright 2009-2010 Rickard Öberg AB |
| * |
| * 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 org.apache.zest.library.eventsourcing.domain.factory; |
| |
| import java.lang.reflect.Method; |
| import org.apache.zest.api.common.AppliesTo; |
| import org.apache.zest.api.concern.GenericConcern; |
| import org.apache.zest.api.entity.EntityComposite; |
| import org.apache.zest.api.injection.scope.Service; |
| import org.apache.zest.api.injection.scope.This; |
| import org.apache.zest.library.eventsourcing.domain.api.DomainEvent; |
| import org.apache.zest.library.eventsourcing.domain.api.DomainEventValue; |
| import org.apache.zest.library.eventsourcing.domain.api.DomainEvents; |
| |
| /** |
| * Generate event for event method |
| */ |
| @AppliesTo(DomainEvent.class) |
| public class DomainEventCreationConcern |
| extends GenericConcern |
| { |
| @This |
| private EntityComposite entity; |
| |
| @Service |
| private DomainEventFactory domainEventFactory; |
| |
| @Override |
| public Object invoke( Object proxy, Method method, Object[] args ) throws Throwable |
| { |
| if (DomainEvents.currentEvent() == null) |
| { |
| // Create eventValue |
| DomainEventValue eventValue = domainEventFactory.createEvent( entity, method.getName(), args ); |
| DomainEvents.setCurrentEvent( eventValue ); |
| try |
| { |
| return next.invoke( proxy, method, args ); |
| } finally |
| { |
| DomainEvents.setCurrentEvent( null ); |
| } |
| |
| } else |
| { |
| // This is probably a replay call |
| return next.invoke( proxy, method, args ); |
| } |
| } |
| } |