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/**
* Copyright (c) 2009 Red Hat, Inc.
*
* This software is licensed to you under the GNU General Public License,
* version 2 (GPLv2). There is NO WARRANTY for this software, express or
* implied, including the implied warranties of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv2
* along with this software; if not, see
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
*
* Red Hat trademarks are not licensed under GPLv2. No permission is
* granted to use or replicate Red Hat trademarks that are incorporated
* in this software or its documentation.
*/
package org.fedoraproject.candlepin.resource;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import org.apache.log4j.Logger;
import org.fedoraproject.candlepin.model.Consumer;
import org.fedoraproject.candlepin.model.Entitlement;
import org.fedoraproject.candlepin.model.EntitlementPool;
import org.fedoraproject.candlepin.model.ObjectFactory;
import org.fedoraproject.candlepin.model.Product;
import org.fedoraproject.candlepin.resource.cert.CertGenerator;
import org.fedoraproject.candlepin.util.EntityManagerUtil;
import com.sun.jersey.api.representation.Form;
/**
* REST api gateway for the User object.
*/
@Path("/entitlement")
public class EntitlementResource extends BaseResource {
/** default ctor */
public EntitlementResource() {
super(Entitlement.class);
}
/** Logger for this class */
private static Logger log = Logger.getLogger(EntitlementResource.class);
private Object validateObjectInput(Form form, String fieldName, Class clazz) {
String uuid = form.getFirst(fieldName);
Object o = ObjectFactory.get().lookupByUUID(clazz, uuid);
if (o == null) {
throw new RuntimeException(clazz.getName() + " with UUID: [" +
uuid + "] not found");
}
return o;
}
private Object validateObjectInput(String uuid, Class clazz) {
Object o = ObjectFactory.get().lookupByUUID(clazz, uuid);
if (o == null) {
throw new RuntimeException(clazz.getName() + " with UUID: [" +
uuid + "] not found");
}
return o;
}
private Object newValidateObjectInput(EntityManager em, Long id, Class clazz) {
Query q = em.createQuery("from " + clazz.getName() + " o where o.id = :id");
q.setParameter("id", id);
// if (o == null) {
// throw new RuntimeException(clazz.getName() + " with UUID: [" +
// uuid + "] not found");
// }
Object result = q.getSingleResult();
return result;
}
/**
* Test method
* @param c consumer test
* @return test object
*/
@POST
@Consumes({ MediaType.APPLICATION_JSON })
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Path("/foo")
public Object foo(Consumer c) {
return "return value";
}
/**
* Entitles the given Consumer with the given Product.
* @param c Consumer to be entitled
* @param p The Product
* @return Entitled object
*/
@POST
@Consumes({ MediaType.APPLICATION_JSON })
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Path("/entitle")
public Object entitle(Consumer c, Product p) {
// Possibly refactor this down into some 'business layer'
// Check for a matching EntitlementPool
List pools = ObjectFactory.get().listObjectsByClass(EntitlementPool.class);
for (int i = 0; i < pools.size(); i++) {
EntitlementPool ep = (EntitlementPool) pools.get(i);
if (ep.getProduct().equals(p)) {
log.debug("We found a matching EP");
// Check membership availability
if (ep.getCurrentMembers() >= ep.getMaxMembers()) {
throw new RuntimeException("Not enough entitlements");
}
// Check expiration
Date today = new Date();
if (ep.getEndDate().before(today)) {
throw new RuntimeException("Entitlement expired on: " +
ep.getEndDate());
}
Entitlement e = new Entitlement();
e.setPool(ep);
e.setStartDate(new Date());
ep.bumpCurrentMembers();
c.addConsumedProduct(p);
c.addEntitlement(e);
e.setOwner(ep.getOwner());
ObjectFactory.get().store(e);
ObjectFactory.get().store(ep);
return CertGenerator.getCertString();
}
}
return null;
}
/**
* Check to see if a given Consumer is entitled to given Product
* @param consumerUuid consumerUuid to check if entitled or not
* @param productId productUuid to check if entitled or not
* @return boolean if entitled or not
*/
@GET
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Path("/has")
public boolean hasEntitlement(@PathParam("consumer_uuid") String consumerUuid,
@PathParam("product_id") String productId) {
Consumer c = (Consumer) validateObjectInput(consumerUuid, Consumer.class);
Product p = (Product) validateObjectInput(productId, Product.class);
for (Entitlement e : c.getEntitlements()) {
if (e.getProduct().equals(p)) {
return true;
}
}
return false;
}
/**
* Match/List the available entitlements for a given Consumer. Right now
* this returns ALL entitlements because we haven't built any filtering logic.
* @param uuid consumerUuid
* @return List<Entitlement> of applicable
*/
@GET
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
@Path("/listavailable")
public List<EntitlementPool> listAvailableEntitlements(
@PathParam("consumerId") Long consumerId) {
EntityManager em = EntityManagerUtil.createEntityManager();
Consumer c = (Consumer) newValidateObjectInput(em, consumerId, Consumer.class);
List<EntitlementPool> entitlementPools = new EntitlementPoolResource().list();
List<EntitlementPool> retval = new ArrayList<EntitlementPool>();
EntitlementMatcher matcher = new EntitlementMatcher();
for (EntitlementPool ep : entitlementPools) {
boolean add = false;
System.out.println("max = " + ep.getMaxMembers());
System.out.println("cur = " + ep.getCurrentMembers());
if (ep.getMaxMembers() > ep.getCurrentMembers()) {
add = true;
}
if (matcher.isCompatible(c, ep.getProduct())) {
add = true;
}
if (add) {
retval.add(ep);
}
}
return retval;
}
// TODO:
// EntitlementLib.UnentitleProduct(Consumer, Entitlement)
/**
* Return list of Entitlements
* @return list of Entitlements
*/
@GET
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public List<Entitlement> list() {
List<Object> u = ObjectFactory.get().listObjectsByClass(getApiClass());
List<Entitlement> entitlements = new ArrayList<Entitlement>();
for (Object o : u) {
entitlements.add((Entitlement) o);
}
return entitlements;
}
}
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