/*
* 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.Event;
import java.util.Collection;
import persistence.Organization;
import persistence.Source;
import persistence.SourceOrgTypeMap;
import persistence.SourceInterestMap;
import converter.SourceConverter;
/**
*
* @author Dave Angulo
*/
public class SourceResource {
@Context
protected UriInfo uriInfo;
@Context
protected ResourceContext resourceContext;
protected String id;
/** Creates a new instance of SourceResource */
public SourceResource() {
}
public void setId(String id) {
this.id = id;
}
/**
* Get method for retrieving an instance of Source identified by id in XML
* format.
*
* @param id
* identifier for the entity
* @return an instance of SourceConverter
*/
@GET
@Produces( { "application/xml", "application/json" })
public SourceConverter get(@QueryParam("expandLevel") @DefaultValue("1") int expandLevel) {
PersistenceService persistenceSvc = PersistenceService.getInstance();
try {
persistenceSvc.beginTx();
return new SourceConverter(getEntity(), uriInfo.getAbsolutePath(), expandLevel);
} finally {
PersistenceService.getInstance().close();
}
}
/**
* Put method for updating an instance of Source identified by id using XML
* as the input format.
*
* @param id
* identifier for the entity
* @param data
* an SourceConverter entity that is deserialized from a XML
* stream
*/
@PUT
@Consumes( { "application/xml", "application/json" })
public void put(SourceConverter 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 Source 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 Source identified by id.
*
* @param id
* identifier for the entity
* @return an instance of Source
*/
protected Source getEntity() {
EntityManager em = PersistenceService.getInstance().getEntityManager();
try {
return (Source) em.createQuery("SELECT e FROM Source 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 Source updateEntity(Source entity, Source newEntity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
Collection<Organization> organizationCollection = entity.getOrganizationCollection();
Collection<Organization> organizationCollectionNew = newEntity.getOrganizationCollection();
Collection<SourceInterestMap> sourceInterestMapCollection = entity
.getSourceInterestMapCollection();
Collection<SourceInterestMap> sourceInterestMapCollectionNew = newEntity
.getSourceInterestMapCollection();
Collection<Event> eventCollection = entity.getEventCollection();
Collection<Event> eventCollectionNew = newEntity.getEventCollection();
Collection<SourceOrgTypeMap> sourceOrgTypeMapCollection = entity
.getSourceOrgTypeMapCollection();
Collection<SourceOrgTypeMap> sourceOrgTypeMapCollectionNew = newEntity
.getSourceOrgTypeMapCollection();
entity = em.merge(newEntity);
for (Organization value : organizationCollection) {
if (!organizationCollectionNew.contains(value)) {
throw new WebApplicationException(new Throwable(
"Cannot remove items from organizationCollection"));
}
}
for (Organization value : organizationCollectionNew) {
if (!organizationCollection.contains(value)) {
Source oldEntity = value.getSourceId();
value.setSourceId(entity);
if (oldEntity != null && !oldEntity.equals(entity)) {
oldEntity.getOrganizationCollection().remove(value);
}
}
}
for (SourceInterestMap value : sourceInterestMapCollection) {
if (!sourceInterestMapCollectionNew.contains(value)) {
throw new WebApplicationException(new Throwable(
"Cannot remove items from sourceInterestMapCollection"));
}
}
for (SourceInterestMap value : sourceInterestMapCollectionNew) {
if (!sourceInterestMapCollection.contains(value)) {
Source oldEntity = value.getSourceId();
value.setSourceId(entity);
if (oldEntity != null && !oldEntity.equals(entity)) {
oldEntity.getSourceInterestMapCollection().remove(value);
}
}
}
for (Event value : eventCollection) {
if (!eventCollectionNew.contains(value)) {
throw new WebApplicationException(new Throwable(
"Cannot remove items from eventCollection"));
}
}
for (Event value : eventCollectionNew) {
if (!eventCollection.contains(value)) {
Source oldEntity = value.getSourceId();
value.setSourceId(entity);
if (oldEntity != null && !oldEntity.equals(entity)) {
oldEntity.getEventCollection().remove(value);
}
}
}
for (SourceOrgTypeMap value : sourceOrgTypeMapCollection) {
if (!sourceOrgTypeMapCollectionNew.contains(value)) {
throw new WebApplicationException(new Throwable(
"Cannot remove items from sourceOrgTypeMapCollection"));
}
}
for (SourceOrgTypeMap value : sourceOrgTypeMapCollectionNew) {
if (!sourceOrgTypeMapCollection.contains(value)) {
Source oldEntity = value.getSourceId();
value.setSourceId(entity);
if (oldEntity != null && !oldEntity.equals(entity)) {
oldEntity.getSourceOrgTypeMapCollection().remove(value);
}
}
}
return entity;
}
/**
* Deletes the entity.
*
* @param entity
* the entity to deletle
*/
protected void deleteEntity(Source entity) {
EntityManager em = PersistenceService.getInstance().getEntityManager();
if (!entity.getOrganizationCollection().isEmpty()) {
throw new WebApplicationException(new Throwable(
"Cannot delete entity because organizationCollection is not empty."));
}
if (!entity.getSourceInterestMapCollection().isEmpty()) {
throw new WebApplicationException(new Throwable(
"Cannot delete entity because sourceInterestMapCollection is not empty."));
}
if (!entity.getEventCollection().isEmpty()) {
throw new WebApplicationException(new Throwable(
"Cannot delete entity because eventCollection is not empty."));
}
if (!entity.getSourceOrgTypeMapCollection().isEmpty()) {
throw new WebApplicationException(new Throwable(
"Cannot delete entity because sourceOrgTypeMapCollection is not empty."));
}
em.remove(entity);
}
/**
* Returns a dynamic instance of OrganizationsResource used for entity
* navigation.
*
* @param id
* identifier for the parent entity
* @return an instance of OrganizationsResource
*/
@Path("organizationCollection/")
public OrganizationsResource getOrganizationCollectionResource() {
OrganizationCollectionResourceSub resource = resourceContext
.getResource(OrganizationCollectionResourceSub.class);
resource.setParent(getEntity());
return resource;
}
/**
* Returns a dynamic instance of SourceInterestMapsResource used for entity
* navigation.
*
* @param id
* identifier for the parent entity
* @return an instance of SourceInterestMapsResource
*/
@Path("sourceInterestMapCollection/")
public SourceInterestMapsResource getSourceInterestMapCollectionResource() {
SourceInterestMapCollectionResourceSub resource = resourceContext
.getResource(SourceInterestMapCollectionResourceSub.class);
resource.setParent(getEntity());
return resource;
}
/**
* Returns a dynamic instance of EventsResource used for entity navigation.
*
* @param id
* identifier for the parent entity
* @return an instance of EventsResource
*/
@Path("eventCollection/")
public EventsResource getEventCollectionResource() {
EventCollectionResourceSub resource = resourceContext
.getResource(EventCollectionResourceSub.class);
resource.setParent(getEntity());
return resource;
}
/**
* Returns a dynamic instance of SourceOrgTypeMapsResource used for entity
* navigation.
*
* @param id
* identifier for the parent entity
* @return an instance of SourceOrgTypeMapsResource
*/
@Path("sourceOrgTypeMapCollection/")
public SourceOrgTypeMapsResource getSourceOrgTypeMapCollectionResource() {
SourceOrgTypeMapCollectionResourceSub resource = resourceContext
.getResource(SourceOrgTypeMapCollectionResourceSub.class);
resource.setParent(getEntity());
return resource;
}
public static class OrganizationCollectionResourceSub extends OrganizationsResource {
private Source parent;
public void setParent(Source parent) {
this.parent = parent;
}
@Override
protected Collection<Organization> getEntities(int start, int max, String query) {
Collection<Organization> result = new java.util.ArrayList<Organization>();
int index = 0;
for (Organization e : parent.getOrganizationCollection()) {
if (index >= start && (index - start) < max) {
result.add(e);
}
index++;
}
return result;
}
}
public static class SourceInterestMapCollectionResourceSub extends SourceInterestMapsResource {
private Source parent;
public void setParent(Source parent) {
this.parent = parent;
}
@Override
protected Collection<SourceInterestMap> getEntities(int start, int max, String query) {
Collection<SourceInterestMap> result = new java.util.ArrayList<SourceInterestMap>();
int index = 0;
for (SourceInterestMap e : parent.getSourceInterestMapCollection()) {
if (index >= start && (index - start) < max) {
result.add(e);
}
index++;
}
return result;
}
}
public static class EventCollectionResourceSub extends EventsResource {
private Source parent;
public void setParent(Source parent) {
this.parent = parent;
}
@Override
protected Collection<Event> getEntities(int start, int max, String query) {
Collection<Event> result = new java.util.ArrayList<Event>();
int index = 0;
for (Event e : parent.getEventCollection()) {
if (index >= start && (index - start) < max) {
result.add(e);
}
index++;
}
return result;
}
}
public static class SourceOrgTypeMapCollectionResourceSub extends SourceOrgTypeMapsResource {
private Source parent;
public void setParent(Source parent) {
this.parent = parent;
}
@Override
protected Collection<SourceOrgTypeMap> getEntities(int start, int max, String query) {
Collection<SourceOrgTypeMap> result = new java.util.ArrayList<SourceOrgTypeMap>();
int index = 0;
for (SourceOrgTypeMap e : parent.getSourceOrgTypeMapCollection()) {
if (index >= start && (index - start) < max) {
result.add(e);
}
index++;
}
return result;
}
}
}