/**
* Copyright (C) 2012 KRM Associates, Inc. healtheme@krminc.com
*
* 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.krminc.phr.api.service;
import com.krminc.phr.api.converter.AddressConverter;
import com.krminc.phr.dao.PersistenceService;
import com.krminc.phr.domain.Address;
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 javax.persistence.NoResultException;
import javax.persistence.EntityManager;
import com.krminc.phr.domain.User;
import javax.ws.rs.core.MediaType;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Adress API RESTful resource class.
*
* @author Daniel Shaw (dshaw.com)
*/
public class AddressResource {
final Logger logger = LoggerFactory.getLogger(AddressResource.class);
@Context
protected UriInfo uriInfo;
@Context
protected ResourceContext resourceContext;
protected Long id;
public AddressResource() {
}
public void setId(Long id) {
this.id = id;
}
/**
* Get method for retrieving an instance of Address identified by id in XML format.
*
* @return an instance of AddressConverter
*/
@GET
@Produces( { MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML } )
public AddressConverter get() {
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
persistenceSvc.beginTx();
return new AddressConverter(getEntity(), uriInfo.getAbsolutePath(), Api.DEFAULT_EXPAND_LEVEL);
} finally {
PersistenceService.getInstance().close();
}
}
/**
* Put method for updating an instance of Address identified by id using XML as the input format.
*
* @param data an AddressConverter entity that is deserialized from a XML stream
*/
@PUT
@Consumes( { MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML } )
public void put(AddressConverter data) {
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
persistenceSvc.beginTx();
EntityManager em = persistenceSvc.getEntityManager();
updateEntity(getEntity(), data.resolveEntity(em));
persistenceSvc.commitTx();
} finally {
persistenceSvc.close();
}
}
/**
* Delete method for deleting an instance of Address identified by id.
*/
@DELETE
public void delete() {
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
persistenceSvc.beginTx();
deleteEntity(getEntity());
persistenceSvc.commitTx();
} finally {
persistenceSvc.close();
}
}
/**
* Returns an instance of Address identified by id.
*
* @return an instance of Address
*/
protected Address getEntity() {
EntityManager em = PersistenceService.getInstance().getEntityManager();
try {
return (Address) em.find(Address.class, 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
*/
protected Address updateEntity(Address entity, Address newEntity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
User user = entity.getUser();
User userNew = newEntity.getUser();
entity = em.merge(newEntity);
if (user != null && !user.equals(userNew)) {
user.getAddresses().remove(entity);
}
if (userNew != null && !userNew.equals(user)) {
userNew.getAddresses().add(entity);
}
return entity;
}
/**
* Deletes the entity.
*
* @param entity the entity to deletle
*/
protected void deleteEntity(Address entity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
User user = entity.getUser();
if (user != null) {
user.getAddresses().remove(entity);
}
em.remove(entity);
}
}