/*
* Copyright (c) 2008 Boulder Community Foundation - iVolunteer
*
* 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 service;
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 javax.persistence.NoResultException;
import javax.persistence.EntityManager;
import persistence.Source;
import persistence.InterestArea;
import converter.SourceInterestMapConverter;
import persistence.SourceInterestMap;
/**
*
* @author Dave Angulo
*/
public class SourceInterestMapResource {
@Context
protected UriInfo uriInfo;
@Context
protected ResourceContext resourceContext;
protected String id;
/** Creates a new instance of SourceInterestMapResource */
public SourceInterestMapResource() {
}
public void setId(String id) {
this.id = id;
}
/**
* Get method for retrieving an instance of SourceInterestMap identified by
* id in XML format.
*
* @param id
* identifier for the entity
* @return an instance of SourceInterestMapConverter
*/
@GET
@Produces( { "application/xml", "application/json" })
public SourceInterestMapConverter get(
@QueryParam("expandLevel") @DefaultValue("1") int expandLevel) {
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
persistenceSvc.beginTx();
return new SourceInterestMapConverter(getEntity(), uriInfo.getAbsolutePath(),
expandLevel);
} finally {
PersistenceService.getInstance().close();
}
}
/**
* Put method for updating an instance of SourceInterestMap identified by id
* using XML as the input format.
*
* @param id
* identifier for the entity
* @param data
* an SourceInterestMapConverter entity that is deserialized from
* a XML stream
*/
@PUT
@Consumes( { "application/xml", "application/json" })
public void put(SourceInterestMapConverter 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 SourceInterestMap identified by
* id.
*
* @param id
* identifier for the entity
*/
@DELETE
public void delete() {
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
persistenceSvc.beginTx();
deleteEntity(getEntity());
persistenceSvc.commitTx();
} finally {
persistenceSvc.close();
}
}
/**
* Returns an instance of SourceInterestMap identified by id.
*
* @param id
* identifier for the entity
* @return an instance of SourceInterestMap
*/
protected SourceInterestMap getEntity() {
EntityManager em = PersistenceService.getInstance().getEntityManager();
try {
return (SourceInterestMap) em.createQuery(
"SELECT e FROM SourceInterestMap e where e.id = :id").setParameter("id", id)
.getSingleResult();
} 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 SourceInterestMap updateEntity(SourceInterestMap entity, SourceInterestMap newEntity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
InterestArea interestAreaId = entity.getInterestAreaId();
InterestArea interestAreaIdNew = newEntity.getInterestAreaId();
Source sourceId = entity.getSourceId();
Source sourceIdNew = newEntity.getSourceId();
entity = em.merge(newEntity);
if (interestAreaId != null && !interestAreaId.equals(interestAreaIdNew)) {
interestAreaId.getSourceInterestMapCollection().remove(entity);
}
if (interestAreaIdNew != null && !interestAreaIdNew.equals(interestAreaId)) {
interestAreaIdNew.getSourceInterestMapCollection().add(entity);
}
if (sourceId != null && !sourceId.equals(sourceIdNew)) {
sourceId.getSourceInterestMapCollection().remove(entity);
}
if (sourceIdNew != null && !sourceIdNew.equals(sourceId)) {
sourceIdNew.getSourceInterestMapCollection().add(entity);
}
return entity;
}
/**
* Deletes the entity.
*
* @param entity
* the entity to deletle
*/
protected void deleteEntity(SourceInterestMap entity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
InterestArea interestAreaId = entity.getInterestAreaId();
if (interestAreaId != null) {
interestAreaId.getSourceInterestMapCollection().remove(entity);
}
Source sourceId = entity.getSourceId();
if (sourceId != null) {
sourceId.getSourceInterestMapCollection().remove(entity);
}
em.remove(entity);
}
/**
* Returns a dynamic instance of InterestAreaResource used for entity
* navigation.
*
* @param id
* identifier for the parent entity
* @return an instance of InterestAreaResource
*/
@Path("interestAreaId/")
public service.InterestAreaResource getInterestAreaIdResource() {
InterestAreaIdResourceSub resource = resourceContext
.getResource(InterestAreaIdResourceSub.class);
resource.setParent(getEntity());
return resource;
}
/**
* Returns a dynamic instance of SourceResource used for entity navigation.
*
* @param id
* identifier for the parent entity
* @return an instance of SourceResource
*/
@Path("sourceId/")
public SourceResource getSourceIdResource() {
SourceIdResourceSub resource = resourceContext.getResource(SourceIdResourceSub.class);
resource.setParent(getEntity());
return resource;
}
public static class InterestAreaIdResourceSub extends InterestAreaResource {
private SourceInterestMap parent;
public void setParent(SourceInterestMap parent) {
this.parent = parent;
}
@Override
protected InterestArea getEntity() {
InterestArea entity = parent.getInterestAreaId();
if (entity == null) {
throw new WebApplicationException(new Throwable("Resource for "
+ uriInfo.getAbsolutePath() + " does not exist."), 404);
}
return entity;
}
}
public static class SourceIdResourceSub extends SourceResource {
private SourceInterestMap parent;
public void setParent(SourceInterestMap parent) {
this.parent = parent;
}
@Override
protected Source getEntity() {
Source entity = parent.getSourceId();
if (entity == null) {
throw new WebApplicationException(new Throwable("Resource for "
+ uriInfo.getAbsolutePath() + " does not exist."), 404);
}
return entity;
}
}
}