| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.qi4j.samples.forum.context; |
| |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.Method; |
| import org.qi4j.api.injection.scope.Structure; |
| import org.qi4j.api.mixin.Mixins; |
| import org.qi4j.api.service.ServiceComposite; |
| import org.qi4j.api.structure.Application; |
| import org.qi4j.api.structure.Module; |
| import org.qi4j.api.unitofwork.UnitOfWork; |
| import org.qi4j.api.unitofwork.UnitOfWorkCallback; |
| import org.qi4j.api.unitofwork.UnitOfWorkCompletionException; |
| import org.qi4j.api.value.ValueBuilder; |
| import org.qi4j.functional.Function; |
| import org.qi4j.functional.Iterables; |
| import org.qi4j.library.rest.server.api.ObjectSelection; |
| import org.qi4j.samples.forum.domainevent.DomainEventValue; |
| import org.qi4j.samples.forum.domainevent.ParameterValue; |
| import org.restlet.Request; |
| |
| /** |
| * TODO |
| */ |
| @Mixins( EventsService.Mixin.class ) |
| public interface EventsService |
| extends Events, ServiceComposite |
| { |
| public class Mixin |
| implements InvocationHandler |
| { |
| @Structure |
| Module module; |
| @Structure |
| Application application; |
| |
| @Override |
| public Object invoke( Object proxy, Method method, Object[] args ) |
| throws Throwable |
| { |
| UnitOfWork unitOfWork = module.currentUnitOfWork(); |
| |
| ValueBuilder<DomainEventValue> builder = module.newValueBuilder( DomainEventValue.class ); |
| DomainEventValue prototype = builder.prototype(); |
| prototype.version().set( application.version() ); |
| prototype.timestamp().set( unitOfWork.currentTime() ); |
| prototype.context().set( proxy.getClass().getSuperclass().getName().split( "\\$" )[ 0 ] ); |
| prototype.name().set( method.getName() ); |
| |
| int idx = 0; |
| for( Object arg : args ) |
| { |
| idx++; |
| String name = "param" + idx; |
| ValueBuilder<ParameterValue> parameterBuilder = module.newValueBuilder( ParameterValue.class ); |
| parameterBuilder.prototype().name().set( name ); |
| parameterBuilder.prototype().value().set( arg ); |
| prototype.parameters().get().add( parameterBuilder.newInstance() ); |
| } |
| |
| Iterables.addAll( prototype.selection().get(), Iterables.map( new Function<Object, String>() |
| { |
| @Override |
| public String map( Object o ) |
| { |
| return o.toString(); |
| } |
| }, ObjectSelection.current().selection() ) ); |
| |
| final DomainEventValue domainEvent = builder.newInstance(); |
| |
| // Send event to all interested parties in the ObjectSelection |
| for( Object selectedObject : ObjectSelection.current().selection() ) |
| { |
| if( selectedObject instanceof Events ) |
| { |
| method.invoke( selectedObject, args ); |
| } |
| } |
| |
| unitOfWork.addUnitOfWorkCallback( new UnitOfWorkCallback() |
| { |
| @Override |
| public void beforeCompletion() |
| throws UnitOfWorkCompletionException |
| { |
| } |
| |
| @Override |
| public void afterCompletion( UnitOfWorkStatus status ) |
| { |
| if( status.equals( UnitOfWorkStatus.COMPLETED ) ) |
| { |
| Request.getCurrent().getAttributes().put( "event", domainEvent ); |
| } |
| } |
| } ); |
| |
| return null; |
| } |
| } |
| } |