Java tutorial
/* * The MIT License * * Copyright 2015 jd. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package io.jeandavid.projects.vod.service; import io.jeandavid.projects.vod.entities.Dvd; import io.jeandavid.projects.vod.entities.DvdOrder; import io.jeandavid.projects.vod.entities.DvdOrderDvd; import io.jeandavid.projects.vod.entities.Person; import java.util.HashSet; import java.util.List; import java.util.Map; import java.util.Set; import java.util.TreeSet; import javax.ejb.EJB; import javax.ejb.Stateless; import javax.naming.NamingException; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import javax.ws.rs.Consumes; import javax.ws.rs.DELETE; import javax.ws.rs.GET; import javax.ws.rs.POST; import javax.ws.rs.PUT; import javax.ws.rs.Path; import javax.ws.rs.PathParam; import javax.ws.rs.Produces; import javax.ws.rs.core.MediaType; import org.hibernate.Criteria; import org.hibernate.Session; import org.hibernate.criterion.Order; import org.hibernate.criterion.Restrictions; /** * * @author jd */ @Stateless @Path("dvd") public class DvdFacadeREST extends AbstractFacade<Dvd> { @EJB private DvdOrderFacadeREST dvdOrderSessionBean; @PersistenceContext(unitName = "io.jeandavid.projects_vod_war_1.0-SNAPSHOTPU") private EntityManager em; public DvdFacadeREST() { super(Dvd.class); } @POST @Override @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) public Dvd create(Dvd entity) { return super.create(entity); } @PUT @Path("{id}") @Produces(MediaType.APPLICATION_JSON) @Consumes(MediaType.APPLICATION_JSON) public Dvd edit(@PathParam("id") Long id, Dvd entity) { return super.edit(entity); } @DELETE @Path("{id}") public void remove(@PathParam("id") Long id) { super.remove(super.find(id)); } @GET @Path("{id}") @Produces(MediaType.APPLICATION_JSON) public Dvd find(@PathParam("id") Long id) { return super.find(id); } @POST @Path("{id}/arrival") @Consumes(MediaType.APPLICATION_JSON) public void addArrival(@PathParam("id") Long id, Map<String, Object> requestBody) throws NamingException { Dvd dvd = super.find(id); dvd.setQuantity(dvd.getQuantity() + (int) requestBody.get("quantity")); Session session = em.unwrap(Session.class); Set<Long> ids = new TreeSet<>(); for (DvdOrderDvd dvdOrderDvd : dvd.getDvdOrderDvds()) { ids.add(dvdOrderDvd.getDvdOrder().getId()); } Criteria crit = session.createCriteria(DvdOrder.class); List<DvdOrder> dvdOrders = crit.add(Restrictions.in("id", ids.toArray())) .add(Restrictions.like("internalState", DvdOrder.PENDING)).addOrder(Order.desc("created")).list(); for (DvdOrder dvdOrder : dvdOrders) { dvdOrderSessionBean.doThePackaging(dvdOrder); session.merge(dvdOrder); session.flush(); dvdOrderSessionBean.refreshParentDvdOrderStatus(dvdOrder.getParentDvdOrder()); } } @GET @Path("{id}/author") @Produces(MediaType.APPLICATION_JSON) public Set<Person> getAuthors(@PathParam("id") Long id) { Dvd dvd = super.find(id); return new HashSet<Person>(dvd.getAuthors()); } @GET @Path("{id}/director") @Produces(MediaType.APPLICATION_JSON) public Set<Person> getDirectors(@PathParam("id") Long id) { Dvd dvd = super.find(id); return new HashSet<Person>(dvd.getDirectors()); } @GET @Override @Produces(MediaType.APPLICATION_JSON) public List<Dvd> findAll() { return super.findAll(); } @GET @Path("{from}/{to}") @Produces(MediaType.APPLICATION_JSON) public List<Dvd> findRange(@PathParam("from") Integer from, @PathParam("to") Integer to) { return super.findRange(new int[] { from, to }); } @GET @Path("count") @Produces(MediaType.TEXT_PLAIN) public String countREST() { return String.valueOf(super.count()); } @Override protected EntityManager getEntityManager() { return em; } }