/*
* Copyright 2011, Nabil Benothman, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package com.ubike.rest.service;
import com.ubike.model.Account;
import javax.ws.rs.Path;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.DELETE;
import javax.ws.rs.Produces;
import javax.ws.rs.Consumes;
import javax.ws.rs.QueryParam;
import javax.ws.rs.DefaultValue;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.UriInfo;
import com.sun.jersey.api.core.ResourceContext;
import javax.ws.rs.WebApplicationException;
import com.ubike.model.UbikeUser;
import com.ubike.rest.converter.AccountConverter;
import com.ubike.services.AccountServiceLocal;
import javax.ejb.EJB;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.ws.rs.core.MediaType;
import org.springframework.security.annotation.Secured;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
/**
* {@code AccountResource}
* <p>Utility class for dealing with persistence.</p>
*
* Created on Jun 6, 2011 at 7:17:22 PM
*
* @author <a href="mailto:nabil.benothman@gmail.com">Nabil Benothman</a>
*/
@Stateless
@Component
@Scope("request")
public class AccountResource {
@Context
protected UriInfo uriInfo;
@Context
protected ResourceContext resourceContext;
protected Long id;
@EJB
private AccountServiceLocal accountService;
/**
* Creates a new instance of AccountResource
*/
public AccountResource() {
}
/**
*
* @param id
*/
public void setId(Long id) {
this.id = id;
}
/**
* Get method for retrieving an instance of Account identified by id in XML format.
*
* @param id identifier for the entity
* @return an instance of AccountConverter
*/
@Secured({"ROLE_USER", "USER_ACCESS"})
@GET
@Produces({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
public AccountConverter get(@QueryParam("expandLevel") @DefaultValue("1") int expandLevel) {
return new AccountConverter(getEntity(), uriInfo.getAbsolutePath(), expandLevel);
}
/**
* Put method for updating an instance of Account identified by id using XML as the input format.
*
* @param id identifier for the entity
* @param data an AccountConverter entity that is deserialized from a XML stream
*/
@Secured({"ROLE_USER", "ROLE_ADMIN"})
@PUT
@Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
public void put(AccountConverter data) {
EntityManager em = accountService.getEntityManager();
updateEntity(getEntity(), data.resolveEntity(em));
}
/**
* Delete method for deleting an instance of Account identified by id.
*
* @param id identifier for the entity
*/
@Secured({"ROLE_USER", "ROLE_ADMIN"})
@DELETE
public void delete() {
deleteEntity(getEntity());
}
/**
* Returns an instance of Account identified by id.
*
* @param id identifier for the entity
* @return an instance of Account
*/
@Secured({"ROLE_USER", "USER_ACCESS"})
public Account getEntity() {
try {
return accountService.find(id);
} catch (NoResultException ex) {
throw new WebApplicationException(new Throwable("Resource for " + uriInfo.getAbsolutePath() + " does not exist."),
404);
}
}
/**
* Updates entity using data from newEntity.
*
* @param entity the entity to update
* @param newEntity the entity containing the new data
* @return the updated entity
*/
@Secured({"ROLE_USER", "ROLE_ADMIN"})
protected Account updateEntity(Account entity, Account newEntity) {
UbikeUser owner = entity.getOwner();
UbikeUser ownerNew = newEntity.getOwner();
accountService.update(newEntity);
if (owner != null && !owner.equals(ownerNew)) {
owner.setAccount(null);
}
if (ownerNew != null && !ownerNew.equals(owner)) {
ownerNew.setAccount(entity);
}
return entity;
}
/**
* Deletes the entity.
*
* @param entity the entity to delete
*/
@Secured({"ROLE_USER", "ROLE_ADMIN"})
protected void deleteEntity(Account entity) {
UbikeUser owner = entity.getOwner();
if (owner != null) {
owner.setAccount(null);
}
accountService.remove(id);
}
/**
* Returns a dynamic instance of UbikeUserResource used for entity navigation.
*
* @param id identifier for the parent entity
* @return an instance of UbikeUserResource
*/
@Secured({"ROLE_USER", "ROLE_ADMIN"})
@Path("owner/")
public UbikeUserResource getOwnerResource() {
OwnerResourceSub resource = resourceContext.getResource(OwnerResourceSub.class);
resource.setParent(getEntity());
return resource;
}
public static class OwnerResourceSub extends UbikeUserResource {
private Account parent;
public void setParent(Account parent) {
this.parent = parent;
}
@Override
public UbikeUser getEntity() {
UbikeUser entity = parent.getOwner();
if (entity == null) {
throw new WebApplicationException(new Throwable("Resource for " + uriInfo.getAbsolutePath() + " does not exist."),
404);
}
return entity;
}
}
}