/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package org.rhq.enterprise.server.resource;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.core.domain.resource.ProductVersion;
import org.rhq.core.domain.resource.ResourceType;
import org.rhq.enterprise.server.RHQConstants;
/**
* SLSB implementation of the {@link ProductVersionManagerLocal}.
*
* @author Jason Dobies
*/
@Stateless
public class ProductVersionManagerBean implements ProductVersionManagerLocal {
// Attributes --------------------------------------------
private final Log log = LogFactory.getLog(this.getClass());
@PersistenceContext(unitName = RHQConstants.PERSISTENCE_UNIT_NAME)
private EntityManager entityManager;
// ProductVersionManagerLocal Implementation --------------------------------------------
public ProductVersion addProductVersion(ResourceType resourceType, String version) {
Query query = entityManager.createNamedQuery(ProductVersion.QUERY_FIND_BY_RESOURCE_TYPE_AND_VERSION);
query.setParameter("resourceType", resourceType);
query.setParameter("version", version);
List resultList = query.getResultList();
ProductVersion productVersion;
if (resultList.size() == 0) {
productVersion = new ProductVersion();
productVersion.setResourceType(resourceType);
productVersion.setVersion(version);
entityManager.persist(productVersion);
} else {
productVersion = (ProductVersion) resultList.get(0);
}
return productVersion;
}
}