/*
* 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.gui.legacy.portlet.problemresources;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.tiles.ComponentContext;
import org.apache.struts.tiles.actions.TilesAction;
import org.rhq.core.domain.auth.Subject;
import org.rhq.core.domain.resource.composite.DisambiguationReport;
import org.rhq.core.domain.resource.composite.ProblemResourceComposite;
import org.rhq.core.domain.util.PageControl;
import org.rhq.core.domain.util.PageList;
import org.rhq.core.util.IntExtractor;
import org.rhq.enterprise.gui.legacy.WebUser;
import org.rhq.enterprise.gui.legacy.WebUserPreferences;
import org.rhq.enterprise.gui.legacy.WebUserPreferences.ProblemResourcesPortletPreferences;
import org.rhq.enterprise.gui.legacy.util.DisambiguatedResourceListUtil;
import org.rhq.enterprise.gui.legacy.util.SessionUtils;
import org.rhq.enterprise.server.measurement.MeasurementProblemManagerLocal;
import org.rhq.enterprise.server.measurement.util.MeasurementUtils;
import org.rhq.enterprise.server.resource.ResourceManagerLocal;
import org.rhq.enterprise.server.util.LookupUtil;
public class ViewAction extends TilesAction {
private static final Log log = LogFactory.getLog(ViewAction.class);
private static final IntExtractor<ProblemResourceComposite> RESOURCE_ID_EXTRACTOR = new IntExtractor<ProblemResourceComposite>() {
public int extract(ProblemResourceComposite object) {
return object.getResourceId();
}
};
@Override
public ActionForward execute(ComponentContext context, ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) throws Exception {
List<DisambiguationReport<ProblemResourceComposite>> disambiguatedList = new ArrayList<DisambiguationReport<ProblemResourceComposite>>();
String timeRange = getResources(request).getMessage("dash.home.ProblemResources.timeRangeUnlimited");
try {
WebUser user = SessionUtils.getWebUser(request.getSession());
if (user == null) {
// session timed out, return prematurely
return null;
}
Subject subject = user.getSubject();
WebUserPreferences preferences = user.getWebPreferences();
ProblemResourcesPortletPreferences problemResourcePreferences = preferences
.getProblemResourcesPortletPreferences();
long begin = 0;
if (problemResourcePreferences.hours > 0) {
List<Long> bounds = MeasurementUtils.calculateTimeFrame(problemResourcePreferences.hours,
MeasurementUtils.UNIT_HOURS);
begin = bounds.get(0);
long end = bounds.get(1);
SimpleDateFormat formatter = new SimpleDateFormat("MMM d, hh:mm a");
timeRange = getResources(request).getMessage("dash.home.ProblemResources.timeRange",
new String[] { formatter.format(new Date(begin)), formatter.format(new Date(end)) });
} else {
timeRange = getResources(request).getMessage("dash.home.ProblemResources.timeRangeUnlimited");
}
try {
MeasurementProblemManagerLocal problemManager = LookupUtil.getMeasurementProblemManager();
ResourceManagerLocal resourceManager = LookupUtil.getResourceManager();
long start = System.currentTimeMillis();
PageList<ProblemResourceComposite> list = problemManager.findProblemResources(subject, begin, new PageControl(0,
problemResourcePreferences.range));
disambiguatedList = DisambiguatedResourceListUtil.disambiguate(
resourceManager, list, RESOURCE_ID_EXTRACTOR);
long end = System.currentTimeMillis();
log.debug("Performance: Took [" + (end - start) + "]ms to find " + problemResourcePreferences.range
+ " problem resources");
} catch (Exception e) {
throw new ServletException("Error finding problem resources", e);
}
} catch (Exception e) {
if (log.isDebugEnabled()) {
log.debug("Dashboard Portlet [ProblemResources] experienced an error: " + e.getMessage(), e);
} else {
log.error("Dashboard Portlet [ProblemResources] experienced an error: " + e.getMessage());
}
} finally {
request.setAttribute("timeRange", timeRange);
context.putAttribute("problemResources", disambiguatedList);
}
return null;
}
}