/*
* 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.LinkedHashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.rhq.core.domain.configuration.Configuration;
import org.rhq.core.domain.configuration.PropertySimple;
import org.rhq.core.domain.resource.ResourceType;
import org.rhq.core.pluginapi.inventory.DiscoveredResourceDetails;
import org.rhq.core.pluginapi.inventory.ResourceDiscoveryComponent;
import org.rhq.core.pluginapi.inventory.ResourceDiscoveryContext;
import org.rhq.plugins.jbossas5.helper.MoreKnownComponentTypes;
import org.rhq.plugins.jbossas5.util.RegularExpressionNameMatcher;
import org.rhq.plugins.jbossas5.util.ManagedComponentUtils;
import org.jboss.deployers.spi.management.ManagementView;
import org.jboss.managed.api.ComponentType;
import org.jboss.managed.api.ManagedComponent;
/**
* A component for discovering JBoss Web virtual hosts (vhosts).
*
* @author Ian Springer
*/
public class VirtualHostDiscoveryComponent
implements ResourceDiscoveryComponent<JBossWebComponent>
{
// A regex for the names of all MBean:WebHost components,
// e.g. "jboss.web:host=localhost,type=Host"
private static final String WEB_HOST_COMPONENT_NAMES_REGEX = "jboss.web:host=([^,]+),type=Host";
private final Log log = LogFactory.getLog(this.getClass());
public Set<DiscoveredResourceDetails> discoverResources(
ResourceDiscoveryContext<JBossWebComponent> discoveryContext) throws Exception
{
ResourceType resourceType = discoveryContext.getResourceType();
log.trace("Discovering " + resourceType.getName() + " Resources...");
JBossWebComponent jbossWebComponent = discoveryContext.getParentResourceComponent();
ManagementView managementView = jbossWebComponent.getConnection().getManagementView();
// TODO (ips): Only refresh the ManagementView *once* per runtime discovery scan, rather than every time this
// method is called. Do this by providing a runtime scan id in the ResourceDiscoveryContext.
managementView.load();
Set<ManagedComponent> webHostComponents = getWebHostComponents(managementView);
Set<DiscoveredResourceDetails> discoveredResources = new LinkedHashSet(webHostComponents.size());
for (ManagedComponent webHostComponent : webHostComponents)
{
// Parse the component name, e.g. "jboss.web:host=localhost,type=Host", to figure out the name.
Pattern pattern = Pattern.compile(WEB_HOST_COMPONENT_NAMES_REGEX);
Matcher matcher = pattern.matcher(webHostComponent.getName());
if (!matcher.matches())
{
log.error("Component name '" + webHostComponent.getName() + "' does not match regex '"
+ pattern + "'.");
continue;
}
String name = matcher.group(1);
String resourceKey = name;
String resourceName = name;
String resourceDescription = resourceType.getDescription();
String resourceVersion = null;
Configuration pluginConfig = discoveryContext.getDefaultPluginConfiguration();
pluginConfig.put(new PropertySimple(ManagedComponentComponent.Config.COMPONENT_NAME,
webHostComponent.getName()));
pluginConfig.put(new PropertySimple(VirtualHostComponent.NAME_PROPERTY, name));
DiscoveredResourceDetails resource =
new DiscoveredResourceDetails(resourceType,
resourceKey,
resourceName,
resourceVersion,
resourceDescription,
pluginConfig,
null);
discoveredResources.add(resource);
}
log.trace("Discovered " + discoveredResources.size() + " " + resourceType.getName() + " Resources.");
return discoveredResources;
}
private static Set<ManagedComponent> getWebHostComponents(ManagementView managementView)
throws Exception
{
ComponentType webHostComponentType = MoreKnownComponentTypes.MBean.WebHost.getType();
return ManagedComponentUtils.getManagedComponents(managementView, webHostComponentType,
WEB_HOST_COMPONENT_NAMES_REGEX, new RegularExpressionNameMatcher());
}
}