/**
* 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.vitals.service;
import com.krminc.phr.api.service.Api;
import com.krminc.phr.domain.vitals.HeartRate;
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.core.Context;
import javax.ws.rs.core.UriInfo;
import com.sun.jersey.api.core.ResourceContext;
import javax.persistence.NoResultException;
import javax.persistence.EntityManager;
import com.krminc.phr.api.vitals.converter.HeartRateConverter;
import com.krminc.phr.dao.PersistenceService;
import com.krminc.phr.domain.HealthRecord;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.servlet.http.HttpServletRequest;
/**
* HeartRate API RESTful resource class.
*
* @author cmccall
* @author Daniel Shaw (dshaw.com)
*/
public class HeartRateResource {
final Logger logger = LoggerFactory.getLogger(HeartRateResource.class);
@Context
protected UriInfo uriInfo;
@Context
protected ResourceContext resourceContext;
@Context
protected transient HttpServletRequest servletRequest;
protected Long id;
public HeartRateResource() {
}
public void setId(Long id) {
this.id = id;
}
/**
* Get method for retrieving an instance of HeartRate identified by id in XML format.
*
* @return an instance of HeartRateConverter
*/
@GET
@Produces( { MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML } )
public HeartRateConverter get() {
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
persistenceSvc.beginTx();
return new HeartRateConverter(getEntity(), uriInfo.getAbsolutePath(), Api.DEFAULT_EXPAND_LEVEL);
} finally {
PersistenceService.getInstance().close();
}
}
/**
* Put method for updating an instance of HeartRate identified by id using XML as the input format.
*
* @param data an HeartRateConverter entity that is deserialized from a XML stream
*/
@PUT
@Consumes( { MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML } )
public void put(HeartRateConverter data) {
//check healthrecord is genuine
try {
Long local = data.getHealthRecordId();
Long session = new Long(servletRequest.getSession().getAttribute("healthRecordId").toString());
if (session != null) {
if (local != null) {
if (session.compareTo(local) != 0) {
data.setHealthRecordId(session); //Passed value not equal, using session value
} // else values are equal, leave as is
} else {
data.setHealthRecordId(session); //No local value passed
}
}
}
catch(NullPointerException ex) {
throw new WebApplicationException(Response.Status.FORBIDDEN);
}
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
//check updateable
if (getEntity().getDataSourceId() != 1) {
throw new WebApplicationException(Response.Status.FORBIDDEN);
}
if (data.hasError) {
throw new WebApplicationException(Response.Status.PRECONDITION_FAILED);
}
persistenceSvc.beginTx();
EntityManager em = persistenceSvc.getEntityManager();
updateEntity(getEntity(), data.resolveEntity(em));
persistenceSvc.commitTx();
} finally {
persistenceSvc.close();
}
}
/**
* Delete method for deleting an instance of HeartRate identified by id.
*/
@DELETE
public void delete() {
//check healthrecord is genuine
try {
Long local = new Long(getEntity().getHealthRecordId());
Long session = new Long(servletRequest.getSession().getAttribute("healthRecordId").toString());
if ( local.compareTo(session) != 0) {
throw new WebApplicationException(Response.Status.FORBIDDEN);
}
}
catch(NullPointerException ex) {
throw new WebApplicationException(Response.Status.FORBIDDEN);
}
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
//check updateable
if (getEntity().getDataSourceId() != 1) {
throw new WebApplicationException(Response.Status.FORBIDDEN);
}
persistenceSvc.beginTx();
deleteEntity(getEntity());
persistenceSvc.commitTx();
} finally {
persistenceSvc.close();
}
}
/**
* Returns an instance of HeartRate identified by id.
*
* @return an instance of HeartRate
*/
protected HeartRate getEntity() {
EntityManager em = PersistenceService.getInstance().getEntityManager();
try {
return (HeartRate) em.find(HeartRate.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 HeartRate updateEntity(HeartRate entity, HeartRate newEntity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
HealthRecord hr = entity.getHealthRecord();
HealthRecord hrNew = newEntity.getHealthRecord();
entity = em.merge(newEntity);
return entity;
}
/**
* Deletes the entity.
*
* @param entity the entity to deletle
*/
protected void deleteEntity(HeartRate entity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
em.remove(entity);
}
}