Java tutorial
/* * Copyright 2014 the original author or authors. * * 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 com.nebhale.springone2014.web; import com.nebhale.springone2014.model.Door; import com.nebhale.springone2014.model.Game; import org.springframework.hateoas.Resource; import org.springframework.hateoas.ResourceAssembler; import org.springframework.hateoas.Resources; import org.springframework.stereotype.Component; import java.util.List; import java.util.stream.Collectors; import static org.springframework.hateoas.mvc.ControllerLinkBuilder.linkTo; @Component final class DoorsResourceAssembler implements ResourceAssembler<Game, Resources<Resource<Door>>> { @Override public Resources<Resource<Door>> toResource(Game game) { List<Resource<Door>> doors = game.getDoors().stream().map(door -> toResource(game, door)) .collect(Collectors.toList()); Resources<Resource<Door>> resource = new Resources<Resource<Door>>(doors); resource.add(linkTo(GamesController.class).slash(game.getId()).slash("doors").withSelfRel()); return resource; } private Resource<Door> toResource(Game game, Door door) { Resource<Door> resource = new Resource<Door>(door); resource.add( linkTo(GamesController.class).slash(game.getId()).slash("doors").slash(door.getId()).withSelfRel()); return resource; } }