/*
* 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.alert;
import java.util.Iterator;
import java.util.List;
import javax.ejb.EJB;
import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.persistence.EntityManager;
import javax.persistence.NoResultException;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import javax.ws.rs.core.Response;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.core.domain.alert.AlertCondition;
import org.rhq.core.domain.alert.AlertConditionCategory;
import org.rhq.core.domain.alert.AlertDefinition;
import org.rhq.core.domain.alert.composite.AbstractAlertConditionCategoryComposite;
import org.rhq.core.domain.auth.Subject;
import org.rhq.core.domain.authz.Permission;
import org.rhq.core.domain.criteria.AlertDefinitionCriteria;
import org.rhq.core.domain.resource.InventoryStatus;
import org.rhq.core.domain.server.PersistenceUtility;
import org.rhq.core.domain.util.PageControl;
import org.rhq.core.domain.util.PageList;
import org.rhq.enterprise.server.RHQConstants;
import org.rhq.enterprise.server.authz.AuthorizationManagerLocal;
import org.rhq.enterprise.server.authz.PermissionException;
import org.rhq.enterprise.server.authz.RequiredPermission;
import org.rhq.enterprise.server.rest.StuffNotFoundException;
/**
* @author Joseph Marques
*/
@Stateless
public class AlertConditionManagerBean implements AlertConditionManagerLocal {
private static final Log LOG = LogFactory.getLog(AlertConditionManagerBean.class);
@PersistenceContext(unitName = RHQConstants.PERSISTENCE_UNIT_NAME)
private EntityManager entityManager;
@EJB
private AuthorizationManagerLocal authorizationManager;
@EJB
private AlertDefinitionManagerLocal alertDefinitionManager;
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
@Override
public Integer getAlertDefinitionByConditionIdNewTx(int alertConditionId) {
try {
Query query = entityManager.createNamedQuery(AlertDefinition.QUERY_FIND_DEFINITION_ID_BY_CONDITION_ID);
query.setParameter("alertConditionId", alertConditionId);
Integer alertDefinitionId = (Integer) query.getSingleResult();
return alertDefinitionId;
} catch (NoResultException nre) {
return null; // we always want this method to return
}
}
public AlertCondition getAlertConditionById(int alertConditionId) {
return entityManager.find(AlertCondition.class, alertConditionId);
}
@SuppressWarnings("unchecked")
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
@Override
public PageList<? extends AbstractAlertConditionCategoryComposite> getAlertConditionComposites(Subject user,
Integer agentId, AlertConditionCategory category, PageControl pageControl) {
if (authorizationManager.isOverlord(user) == false) {
throw new PermissionException("User [" + user.getName() + "] does not have permission to call "
+ "getAlertConditionComposites; only the overlord has that right");
}
String queryName = null;
String countQueryName = AlertCondition.QUERY_BY_CATEGORY_COUNT_PARAMETERIZED; // default
if (category == AlertConditionCategory.BASELINE) {
queryName = AlertCondition.QUERY_BY_CATEGORY_BASELINE;
countQueryName = AlertCondition.QUERY_BY_CATEGORY_COUNT_BASELINE; // no countQuery parameters needed
} else if (category == AlertConditionCategory.CHANGE) {
queryName = AlertCondition.QUERY_BY_CATEGORY_CHANGE;
} else if (category == AlertConditionCategory.TRAIT) {
queryName = AlertCondition.QUERY_BY_CATEGORY_TRAIT;
} else if (category == AlertConditionCategory.AVAILABILITY) {
queryName = AlertCondition.QUERY_BY_CATEGORY_AVAILABILITY;
} else if (category == AlertConditionCategory.AVAIL_DURATION) {
// The duration category can use the same availability composite query, just needs a parameter set
queryName = AlertCondition.QUERY_BY_CATEGORY_AVAILABILITY;
} else if (category == AlertConditionCategory.CONTROL) {
queryName = AlertCondition.QUERY_BY_CATEGORY_CONTROL;
} else if (category == AlertConditionCategory.THRESHOLD) {
queryName = AlertCondition.QUERY_BY_CATEGORY_THRESHOLD;
} else if (category == AlertConditionCategory.EVENT) {
queryName = AlertCondition.QUERY_BY_CATEGORY_EVENT;
} else if (category == AlertConditionCategory.RESOURCE_CONFIG) {
queryName = AlertCondition.QUERY_BY_CATEGORY_RESOURCE_CONFIG;
} else if (category == AlertConditionCategory.DRIFT) {
queryName = AlertCondition.QUERY_BY_CATEGORY_DRIFT;
} else if (category == AlertConditionCategory.RANGE) {
queryName = AlertCondition.QUERY_BY_CATEGORY_RANGE;
} else {
throw new IllegalArgumentException("getAlertConditionComposites does not support category '" + category
+ "'");
}
Query query = entityManager.createNamedQuery(queryName);
PersistenceUtility.setDataPage(query, pageControl);
Query queryCount = entityManager.createNamedQuery(countQueryName);
// The following query is used in two places, and needs the category set to get different results
if (queryName == AlertCondition.QUERY_BY_CATEGORY_AVAILABILITY) {
query.setParameter("category", category);
}
// the default parameterized count query needs a parameter
if (countQueryName == AlertCondition.QUERY_BY_CATEGORY_COUNT_PARAMETERIZED) {
queryCount.setParameter("category", category);
}
query.setParameter("agentId", agentId);
queryCount.setParameter("agentId", agentId);
long totalCount = (Long) queryCount.getSingleResult();
List<? extends AbstractAlertConditionCategoryComposite> list = query.getResultList();
LOG.debug("Found " + totalCount + " elements of type '" + category + "', list was size " + list.size());
return new PageList<AbstractAlertConditionCategoryComposite>(list, (int) totalCount, pageControl);
}
@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
@Override
public InventoryStatus getResourceStatusByConditionIdNewTx(int alertConditionId) {
try {
Query query = entityManager.createNamedQuery(AlertCondition.QUERY_FIND_RESOURCE_STATUS_BY_CONDITION_ID);
query.setParameter("alertConditionId", alertConditionId);
InventoryStatus status = (InventoryStatus) query.getSingleResult();
// a resource was marked for asynchronous uninventory, but not actually deleted yet
return status;
} catch (NoResultException nre) {
// the resource was already deleted asynchronously, tell the caller as much
return InventoryStatus.UNINVENTORIED;
}
}
@Override
public int purgeOrphanedAlertConditions() {
Query purgeQuery = entityManager.createNamedQuery(AlertCondition.QUERY_DELETE_ORPHANED);
return purgeQuery.executeUpdate();
}
}