| /* |
| * 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 java.io.IOException; |
| import java.util.Collections; |
| import org.apache.polygene.api.identity.HasIdentity; |
| import org.apache.polygene.api.identity.Identity; |
| import org.apache.polygene.api.identity.StringIdentity; |
| import org.apache.polygene.api.injection.scope.Service; |
| import org.apache.polygene.api.injection.scope.Structure; |
| import org.apache.polygene.api.mixin.Mixins; |
| import org.apache.polygene.api.object.ObjectFactory; |
| import org.apache.polygene.api.value.ValueBuilder; |
| import org.apache.polygene.api.value.ValueBuilderFactory; |
| import org.apache.polygene.library.restlet.Command; |
| 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.crud.EntityRef; |
| import org.apache.polygene.library.restlet.identity.IdentityManager; |
| import org.apache.polygene.library.restlet.serialization.PolygeneConverter; |
| import org.restlet.data.Method; |
| import org.restlet.data.Reference; |
| import org.restlet.representation.Representation; |
| import org.restlet.representation.Variant; |
| import org.restlet.routing.Route; |
| import org.restlet.routing.Router; |
| |
| @Mixins( ResourceBuilder.Mixin.class ) |
| public interface ResourceBuilder |
| { |
| EntityRef createEntityRef(Identity name, Reference base ); |
| |
| EntityRef createEntityRef( Identity name, RestLink get, RestLink put, RestLink delete ); |
| |
| RestLink createRestLink( Identity name, Reference base, Method method ); |
| |
| RestLink createRestLink( Identity name, Reference base, Method method, String description ); |
| |
| Command createCommand( Reference base ); |
| |
| RestForm createNameForm( Reference base ); |
| |
| FormField createFormField( String name, String type ); |
| |
| <T extends HasIdentity> Representation toRepresentation(Class<T> type, T composite ); |
| |
| <T extends HasIdentity> T toObject(Class<T> type, Representation representation ) |
| throws IOException; |
| |
| Route findRoute( String name, Router router ); |
| |
| class Mixin |
| implements ResourceBuilder |
| { |
| @Service |
| private IdentityManager identityManager; |
| |
| private final PolygeneConverter converter; |
| |
| @Structure |
| private ValueBuilderFactory vbf; |
| |
| public Mixin( @Structure ObjectFactory objectFactory ) |
| { |
| converter = new PolygeneConverter( objectFactory ); |
| } |
| |
| @Override |
| public EntityRef createEntityRef( Identity identity, Reference base ) |
| { |
| RestLink get = createRestLink( identity, base, Method.GET ); |
| RestLink put = createRestLink( identity, base, Method.PUT ); |
| RestLink delete = createRestLink( identity, base, Method.DELETE ); |
| return createEntityRef( identity, get, put, delete ); |
| } |
| |
| @Override |
| public EntityRef createEntityRef( Identity identity, RestLink get, RestLink put, RestLink delete ) |
| { |
| ValueBuilder<EntityRef> refBuilder = vbf.newValueBuilder( EntityRef.class ); |
| EntityRef refPrototype = refBuilder.prototype(); |
| refPrototype.name().set( identityManager.extractName( identity ) ); |
| refPrototype.get().set( get ); |
| refPrototype.put().set( put ); |
| refPrototype.delete().set( delete ); |
| return refBuilder.newInstance(); |
| } |
| |
| @Override |
| public RestLink createRestLink( Identity identity, Reference base, Method method ) |
| { |
| String name = identityManager.extractName( identity ); |
| |
| ValueBuilder<RestLink> builder = vbf.newValueBuilder( RestLink.class ); |
| RestLink prototype = builder.prototype(); |
| String path = base.toUri().resolve( name ).getPath(); |
| prototype.path().set( path.endsWith( "/" ) ? path : path + "/" ); |
| prototype.method().set( method.getName() ); |
| return builder.newInstance(); |
| } |
| |
| @Override |
| public RestLink createRestLink( Identity identity, Reference base, Method method, String description ) |
| { |
| String name = identityManager.extractName( identity ); |
| ValueBuilder<RestLink> builder = vbf.newValueBuilder( RestLink.class ); |
| RestLink prototype = builder.prototype(); |
| prototype.path().set( base.toUri().resolve( name ).getPath() + "/" ); |
| prototype.method().set( method.getName() ); |
| prototype.description().set( description ); |
| return builder.newInstance(); |
| } |
| |
| public Command createCommand( Reference base ) |
| { |
| RestForm form = createNameForm( base ); |
| ValueBuilder<Command> builder = vbf.newValueBuilder( Command.class ); |
| builder.prototype().name().set( "create" ); |
| builder.prototype().form().set( form ); |
| return builder.newInstance(); |
| } |
| |
| public RestForm createNameForm( Reference base ) |
| { |
| ValueBuilder<RestForm> builder = vbf.newValueBuilder( RestForm.class ); |
| builder.prototype().link().set( createRestLink( StringIdentity.fromString( "form" ), base, Method.POST ) ); |
| builder.prototype().fields().set( Collections.singletonList( createFormField( "name", FormField.TEXT ) ) ); |
| return builder.newInstance(); |
| } |
| |
| public FormField createFormField( String name, String type ) |
| { |
| ValueBuilder<FormField> builder = vbf.newValueBuilder( FormField.class ); |
| builder.prototype().name().set( name ); |
| builder.prototype().type().set( type ); |
| return builder.newInstance(); |
| } |
| |
| @Override |
| public <T extends HasIdentity> Representation toRepresentation(Class<T> type, T composite ) |
| { |
| return converter.toRepresentation( composite, new Variant(), null ); |
| } |
| |
| @Override |
| public <T extends HasIdentity> T toObject(Class<T> type, Representation representation ) |
| throws IOException |
| { |
| return converter.toObject( representation, type, null ); |
| } |
| |
| @Override |
| public Route findRoute( String name, Router router ) |
| { |
| return router.getRoutes().stream().filter( route -> name.equals( route.getName() ) ).findFirst().orElse( null ); |
| } |
| } |
| } |