/*
* JBoss, Home of Professional Open Source
* Copyright 2011 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.rhq;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.mc4j.ems.connection.EmsConnection;
import org.mc4j.ems.connection.bean.EmsBean;
import org.rhq.core.pluginapi.inventory.DiscoveredResourceDetails;
import org.rhq.core.pluginapi.inventory.ResourceDiscoveryContext;
import org.rhq.plugins.jmx.MBeanResourceDiscoveryComponent;
import org.rhq.plugins.jmx.ObjectNameQueryUtility;
import javax.management.ObjectName;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/**
* Discovery class for individual cache instances
*
* @author Heiko W. Rupp
* @author Galder Zamarreño
*/
public class CacheDiscovery extends MBeanResourceDiscoveryComponent<CacheManagerComponent> {
private static final Log log = LogFactory.getLog(CacheDiscovery.class);
/** Run the discovery */
@Override
public Set<DiscoveredResourceDetails> discoverResources(ResourceDiscoveryContext<CacheManagerComponent> ctx) {
boolean trace = log.isTraceEnabled();
if (trace) log.trace("Discover resources with context");
Set<DiscoveredResourceDetails> discoveredResources = new HashSet<DiscoveredResourceDetails>();
EmsConnection conn = ctx.getParentResourceComponent().getEmsConnection();
if (trace) log.trace("Connection to ems server established");
String pattern = getAllCachesPattern(ctx.getParentResourceContext().getResourceKey());
if (trace) log.trace("Pattern to query is " + pattern);
ObjectNameQueryUtility queryUtility = new ObjectNameQueryUtility(pattern);
List<EmsBean> beans = conn.queryBeans(queryUtility.getTranslatedQuery());
if (trace) log.trace("Querying "+queryUtility.getTranslatedQuery()+" returned beans: " + beans);
for (EmsBean bean : beans) {
// Filter out spurious beans
if (CacheComponent.isCacheComponent(bean, "Cache")) {
/* A discovered resource must have a unique key, that must
* stay the same when the resource is discovered the next
* time */
String name = bean.getAttribute("CacheName").getValue().toString();
String mbeanCacheName = bean.getBeanName().getKeyProperty("name");
if (trace) log.trace("Resource name is "+name+" and resource key "+ mbeanCacheName);
DiscoveredResourceDetails detail = new DiscoveredResourceDetails(
ctx.getResourceType(), // Resource Type
mbeanCacheName, // Resource Key
name, // Resource name
null, // Version
"One cache within Infinispan", // ResourceDescription
ctx.getDefaultPluginConfiguration(), // Plugin Config
null // ProcessInfo
);
// Add to return values
discoveredResources.add(detail);
log.info("Discovered new ... " + bean.getBeanName().getCanonicalName());
} else {
log.warn(String.format("MBeanServer returned spurious object %s", bean.getBeanName().getCanonicalName()));
}
}
return discoveredResources;
}
private String getAllCachesPattern(String cacheManagerName) {
return cacheComponentPattern(cacheManagerName, "Cache") + ",*";
}
protected static String cacheComponentPattern(String cacheManagerName, String componentName) {
return "*:type=Cache,component=" + componentName + ",manager=" + ObjectName.quote(cacheManagerName);
}
}