/*
* Jopr Management Platform
* Copyright (C) 2005-2009 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, version 2, as
* published by the Free Software Foundation, and/or the GNU Lesser
* General Public License, version 2.1, also as published by the Free
* Software Foundation.
*
* 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 and the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.rhq.plugins.jbossas5;
import java.util.Iterator;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.jetbrains.annotations.Nullable;
import org.jboss.deployers.spi.management.ManagementView;
import org.jboss.managed.api.ManagedComponent;
import org.jboss.managed.api.ManagedDeployment;
import org.jboss.profileservice.spi.NoSuchDeploymentException;
import org.rhq.core.domain.measurement.MeasurementDataTrait;
import org.rhq.core.domain.measurement.MeasurementReport;
import org.rhq.core.domain.measurement.MeasurementScheduleRequest;
import org.rhq.core.pluginapi.measurement.MeasurementFacet;
import org.rhq.plugins.jbossas5.util.ManagedComponentUtils;
/**
* @author Ian Springer
*/
public class WarMeasurementFacetDelegate implements MeasurementFacet
{
private static final String CONTEXT_ROOT_TRAIT = "contextRoot";
private static final String VIRTUAL_HOSTS_TRAIT = "virtualHosts";
private static final String CONTEXT_COMPONENT_NAME = "ContextMO";
private final Log log = LogFactory.getLog(this.getClass());
private AbstractManagedDeploymentComponent managedDeploymentComponent;
public WarMeasurementFacetDelegate(AbstractManagedDeploymentComponent managedDeploymentComponent)
{
this.managedDeploymentComponent = managedDeploymentComponent;
}
public void getValues(MeasurementReport report, Set<MeasurementScheduleRequest> requests)
throws Exception
{
ManagementView managementView = this.managedDeploymentComponent.getConnection().getManagementView();
String contextPath = getContextPath();
for (MeasurementScheduleRequest request : requests)
{
String metricName = request.getName();
try
{
if (metricName.equals(CONTEXT_ROOT_TRAIT))
{
if (contextPath == null)
{
// We can't figure out the context root for a stopped WAR.
continue;
}
String contextRoot = (contextPath.equals("/")) ? "/" : contextPath.substring(1);
MeasurementDataTrait trait = new MeasurementDataTrait(request, contextRoot);
report.addData(trait);
}
else if (metricName.equals(VIRTUAL_HOSTS_TRAIT))
{
if (contextPath == null)
{
// We can't figure out the virtual hosts for a stopped WAR.
continue;
}
Set<String> virtualHosts = WebApplicationContextDiscoveryComponent.getVirtualHosts(contextPath,
managementView);
String value = "";
for (Iterator<String> iterator = virtualHosts.iterator(); iterator.hasNext();)
{
String virtualHost = iterator.next();
value += virtualHost;
if (iterator.hasNext())
value += ", ";
}
MeasurementDataTrait trait = new MeasurementDataTrait(request, value);
report.addData(trait);
}
}
catch (Exception e)
{
// Don't let one bad apple spoil the barrel.
log.error("Failed to collect metric '" + metricName + "' for "
+ this.managedDeploymentComponent.getResourceDescription() + ".", e);
}
}
}
/**
* Returns this WAR's context path (e.g. "/jmx-console"), or <code>null</code> if the WAR is currently stopped,
* since stopped WARs are not associated with any contexts.
*
* @return this WAR's context path (e.g. "/jmx-console"), or <code>null</code> if the WAR is currently stopped,
* since stopped WARs are not associated with any contexts
* @throws NoSuchDeploymentException if the WAR is no longer deployed
*/
@Nullable
private String getContextPath()
throws NoSuchDeploymentException
{
ManagedDeployment deployment = this.managedDeploymentComponent.getManagedDeployment();
ManagedComponent contextComponent = deployment.getComponent(CONTEXT_COMPONENT_NAME);
if (contextComponent != null)
{
return (String)ManagedComponentUtils.getSimplePropertyValue(contextComponent, "contextRoot");
}
else
{
return null;
}
}
}