/*
* 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.scheduler.jobs;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.rhq.core.domain.auth.Subject;
import org.rhq.core.domain.criteria.ResourceCriteria;
import org.rhq.core.domain.criteria.ResourceGroupCriteria;
import org.rhq.core.domain.criteria.SavedSearchCriteria;
import org.rhq.core.domain.criteria.Criteria.Restriction;
import org.rhq.core.domain.search.SavedSearch;
import org.rhq.core.domain.search.SearchSubsystem;
import org.rhq.core.domain.util.PageList;
import org.rhq.enterprise.server.resource.ResourceManagerLocal;
import org.rhq.enterprise.server.resource.group.ResourceGroupManagerLocal;
import org.rhq.enterprise.server.search.SavedSearchManagerLocal;
import org.rhq.enterprise.server.util.LookupUtil;
/**
*
*
* @author Joseph Marques
*/
public class SavedSearchResultCountRecalculationJob extends AbstractStatefulJob {
private final static Log LOG = LogFactory.getLog(SavedSearchResultCountRecalculationJob.class);
private SavedSearchManagerLocal savedSearchManager = LookupUtil.getSavedSearchManager();
private ResourceManagerLocal resourceManager = LookupUtil.getResourceManager();
private ResourceGroupManagerLocal resourceGroupManager = LookupUtil.getResourceGroupManager();
private Subject overlord = LookupUtil.getSubjectManager().getOverlord();
@Override
public void executeJobCode(JobExecutionContext context) throws JobExecutionException {
List<SavedSearch> staleSavedSearches = getSavedSearchesNeedingRecomputation();
int errors = 0;
int updated = 0;
long totalMillis = 0;
for (SavedSearch next : staleSavedSearches) {
if (next.isGlobal()) {
continue;
}
try {
PageList<?> results = null;
if (next.getSearchSubsystem() == SearchSubsystem.RESOURCE) {
ResourceCriteria criteria = new ResourceCriteria();
criteria.setRestriction(Restriction.COUNT_ONLY);
criteria.setSearchExpression(next.getPattern());
totalMillis -= System.currentTimeMillis();
results = resourceManager.findResourcesByCriteria(overlord, criteria);
totalMillis += System.currentTimeMillis();
} else if (next.getSearchSubsystem() == SearchSubsystem.GROUP) {
ResourceGroupCriteria criteria = new ResourceGroupCriteria();
criteria.setRestriction(Restriction.COUNT_ONLY);
criteria.setSearchExpression(next.getPattern());
totalMillis -= System.currentTimeMillis();
results = resourceGroupManager.findResourceGroupsByCriteria(overlord, criteria);
totalMillis += System.currentTimeMillis();
}
if (results != null && processResults(next, results.getTotalSize())) {
updated++;
}
} catch (Throwable t) {
// TODO: mark this saved search as "broken" so that future computation is suppressed for it
errors++;
LOG.error("Could not calculate result count for SavedSearch[name=" + next.getName() + ", pattern='"
+ next.getPattern() + "']: " + t.getMessage());
LOG.debug(t);
}
}
if (updated > 0) {
// only print non-zero stats
LOG.debug("Statistics: updated " + updated + " in " + totalMillis + " ms (" + errors + " errors)");
}
}
private boolean processResults(SavedSearch next, long calculatedSize) {
boolean countChanged = false;
if (next.getResultCount() == null || calculatedSize != next.getResultCount()) {
LOG.trace("Updated " + next + ", new result count is [" + calculatedSize + "]");
next.setResultCount(calculatedSize);
countChanged = true;
}
// always set lastComputeTime so we don't check this until the recomputation time period elapses
next.setLastComputeTime(System.currentTimeMillis());
savedSearchManager.updateSavedSearch(overlord, next);
return countChanged;
}
private List<SavedSearch> getSavedSearchesNeedingRecomputation() {
long fiveMinutesAgo = System.currentTimeMillis() - (5 * 60 * 1000);
SavedSearchCriteria criteria = new SavedSearchCriteria();
criteria.addFilterLastComputeTimeMax(fiveMinutesAgo);
criteria.addFilterGlobal(false); // don't support CRUD global yet, don't bother recalculating these
List<SavedSearch> results = savedSearchManager.findSavedSearchesByCriteria(overlord, criteria);
if (LOG.isTraceEnabled()) {
for (SavedSearch nextSavedSearch : results) {
LOG.trace(nextSavedSearch + " needs recomputation");
}
}
return results;
}
}