| /* |
| * 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.apache.polygene.library.restlet.resource; |
| |
| import org.apache.polygene.api.identity.HasIdentity; |
| import org.apache.polygene.api.identity.Identity; |
| import org.apache.polygene.api.injection.scope.Service; |
| import org.apache.polygene.api.injection.scope.Structure; |
| import org.apache.polygene.api.injection.scope.This; |
| import org.apache.polygene.api.mixin.Mixins; |
| import org.apache.polygene.api.property.PropertyDescriptor; |
| import org.apache.polygene.api.unitofwork.UnitOfWork; |
| import org.apache.polygene.api.unitofwork.UnitOfWorkFactory; |
| import org.apache.polygene.api.value.ValueBuilder; |
| import org.apache.polygene.api.value.ValueBuilderFactory; |
| import org.apache.polygene.library.restlet.FormField; |
| import org.apache.polygene.library.restlet.RestForm; |
| import org.apache.polygene.library.restlet.RestLink; |
| import org.apache.polygene.library.restlet.identity.IdentityManager; |
| import org.apache.polygene.library.restlet.repository.RepositoryLocator; |
| import org.restlet.data.Method; |
| |
| @Mixins( CreationResource.Mixin.class ) |
| public interface CreationResource<T extends HasIdentity> extends ServerResource<T> |
| { |
| abstract class Mixin<T extends HasIdentity> |
| implements CreationResource<T> |
| { |
| @Structure |
| private ValueBuilderFactory vbf; |
| |
| @Structure |
| private UnitOfWorkFactory uowf; |
| |
| @This |
| private Parameters<T> parameters; |
| |
| @Service |
| private ResourceBuilder resourceBuilder; |
| |
| @Service |
| private IdentityManager identityManager; |
| |
| @Service |
| private RepositoryLocator locator; |
| |
| @Override |
| public RestLink post( RestForm form ) |
| { |
| String name = form.field( "name" ).value().get(); |
| Class<? extends HasIdentity> entityType = parameters.entityType().get(); |
| Identity identity = identityManager.generate( entityType, name ); |
| locator.find( entityType ).create( identity ); |
| doParameterization( form, entityType, identity ); |
| return resourceBuilder.createRestLink( identity.toString(), parameters.request().get().getResourceRef(), Method.GET ); |
| } |
| |
| private <P> void doParameterization( RestForm form, Class entityType, Identity identity ) |
| { |
| if( !CreationParameterized.class.isAssignableFrom( entityType ) ) |
| { |
| return; |
| } |
| @SuppressWarnings( "unchecked" ) |
| CreationParameterized<P> created = (CreationParameterized<P>) locator.find( entityType ).get( identity ); |
| P parameterization = createParameterizationValue( form, created ); |
| created.parameterize( parameterization ); |
| } |
| |
| private <V> V createParameterizationValue( final RestForm form, CreationParameterized<V> created ) |
| { |
| Class<V> valueType = created.parametersType(); |
| ValueBuilder<V> vb = vbf.newValueBuilderWithState( |
| valueType, |
| propertyName -> mapField( form, propertyName ), |
| association -> null, |
| association -> null, |
| association -> null |
| ); |
| return vb.newInstance(); |
| } |
| |
| private Object mapField( RestForm form, PropertyDescriptor propertyName ) |
| { |
| String name = propertyName.qualifiedName().name(); |
| FormField field = form.field( name ); |
| if( field == null ) |
| { |
| UnitOfWork uow = uowf.currentUnitOfWork(); |
| String usecase = ""; |
| if( uow != null ) |
| { |
| usecase = uow.usecase().name(); |
| } |
| throw new IllegalArgumentException( "Field named '" + name + "' is required and not present in usecase " + usecase ); |
| } |
| return field.value().get(); |
| } |
| } |
| } |