| /* |
| * Copyright (c) 2011, Rickard Öberg. All Rights Reserved. |
| * |
| * 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.rest.server; |
| |
| import org.apache.zest.api.common.UseDefaults; |
| import org.apache.zest.api.entity.EntityComposite; |
| import org.apache.zest.api.injection.scope.Service; |
| import org.apache.zest.api.injection.scope.Structure; |
| import org.apache.zest.api.mixin.Mixins; |
| import org.apache.zest.api.property.Property; |
| import org.apache.zest.api.unitofwork.UnitOfWork; |
| import org.apache.zest.api.unitofwork.UnitOfWorkCompletionException; |
| import org.apache.zest.api.unitofwork.UnitOfWorkFactory; |
| import org.apache.zest.api.usecase.UsecaseBuilder; |
| import org.apache.zest.bootstrap.AssemblyException; |
| import org.apache.zest.bootstrap.ImportedServiceDeclaration; |
| import org.apache.zest.bootstrap.ModuleAssembly; |
| import org.apache.zest.bootstrap.SingletonAssembler; |
| 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.UnitOfWorkDomainEventsValue; |
| import org.apache.zest.library.eventsourcing.domain.factory.CurrentUserUoWPrincipal; |
| import org.apache.zest.library.eventsourcing.domain.factory.DomainEventCreationConcern; |
| import org.apache.zest.library.eventsourcing.domain.factory.DomainEventFactoryService; |
| import org.apache.zest.library.eventsourcing.domain.source.EventSource; |
| import org.apache.zest.library.eventsourcing.domain.source.memory.MemoryEventStoreService; |
| import org.apache.zest.test.EntityTestAssembler; |
| import org.restlet.*; |
| import org.restlet.data.Protocol; |
| import org.restlet.data.Status; |
| import org.restlet.representation.StringRepresentation; |
| import org.restlet.resource.ResourceException; |
| |
| import java.security.Principal; |
| |
| /** |
| * Start simple web server that exposes the Restlet resource. Test through browser. |
| */ |
| public class DomainEventSourceResourceSample |
| { |
| public static void main( String[] args ) throws Exception |
| { |
| Component component = new Component(); |
| component.getServers().add( Protocol.HTTP, 8080 ); |
| |
| SingletonAssembler assembler = new SingletonAssembler() |
| { |
| public void assemble( ModuleAssembly module ) throws AssemblyException |
| { |
| new EntityTestAssembler().assemble( module ); |
| |
| module.values( DomainEventValue.class, UnitOfWorkDomainEventsValue.class ); |
| module.services( MemoryEventStoreService.class ).taggedWith( "domain" ); |
| module.services( DomainEventFactoryService.class ); |
| module.importedServices( CurrentUserUoWPrincipal.class ).importedBy( ImportedServiceDeclaration.NEW_OBJECT ); |
| module.objects( CurrentUserUoWPrincipal.class ); |
| |
| module.objects( DomainEventSourceResource.class, PingResource.class ); |
| |
| module.entities( TestEntity.class ).withConcerns( DomainEventCreationConcern.class ); |
| } |
| }; |
| |
| component.getDefaultHost().attach( "/events", new TestApplication( assembler ) ); |
| component.getDefaultHost().attach( "/ping", assembler.module().newObject( PingResource.class ) ); |
| component.start(); |
| |
| generateTestData(assembler.module()); |
| } |
| |
| private static void generateTestData(UnitOfWorkFactory unitOfWorkFactory) throws UnitOfWorkCompletionException |
| { |
| // Set principal for the UoW |
| Principal administratorPrincipal = new Principal() |
| { |
| public String getName() |
| { |
| return "administrator"; |
| } |
| }; |
| |
| // Perform UoW with usecase defined |
| for (int i = 0; i < 43; i++) |
| { |
| UnitOfWork uow = unitOfWorkFactory.newUnitOfWork( UsecaseBuilder.newUsecase( "Change description "+(i+1) )); |
| uow.setMetaInfo( administratorPrincipal ); |
| |
| TestEntity entity = uow.newEntity( TestEntity.class ); |
| entity.changedDescription( "New description" ); |
| uow.complete(); |
| } |
| } |
| |
| static class TestApplication |
| extends Application |
| { |
| private final SingletonAssembler assembler; |
| |
| TestApplication(SingletonAssembler assembler) |
| { |
| this.assembler = assembler; |
| } |
| |
| @Override |
| public Restlet createInboundRoot() |
| { |
| getTunnelService().setExtensionsTunnel( true ); |
| return assembler.module().newObject(DomainEventSourceResource.class ); |
| } |
| } |
| |
| |
| @Mixins(TestEntity.Mixin.class) |
| public interface TestEntity |
| extends EntityComposite |
| { |
| @UseDefaults |
| Property<String> description(); |
| |
| @DomainEvent |
| void changedDescription( String newName ); |
| |
| abstract class Mixin |
| implements TestEntity |
| { |
| public void changedDescription( String newName ) |
| { |
| description().set( newName ); |
| } |
| } |
| } |
| |
| // Used to create more events |
| public static class PingResource |
| extends Restlet |
| { |
| @Structure |
| UnitOfWorkFactory unitOfWorkFactory; |
| |
| @Service |
| EventSource eventSource; |
| |
| @Override |
| public void handle( Request request, Response response ) |
| { |
| // Set principal for the UoW |
| Principal administratorPrincipal = new Principal() |
| { |
| public String getName() |
| { |
| return "administrator"; |
| } |
| }; |
| |
| // Perform UoW with usecase defined |
| try |
| { |
| UnitOfWork uow = unitOfWorkFactory.newUnitOfWork( UsecaseBuilder.newUsecase( "Change description "+(eventSource.count()) )); |
| uow.setMetaInfo( administratorPrincipal ); |
| |
| TestEntity entity = uow.newEntity( TestEntity.class ); |
| entity.changedDescription( "New description" ); |
| uow.complete(); |
| |
| response.setEntity( new StringRepresentation( "Event created" ) ); |
| response.setStatus( Status.SUCCESS_OK ); |
| } catch (UnitOfWorkCompletionException e) |
| { |
| throw new ResourceException(e); |
| } |
| } |
| } |
| } |