Package org.infinispan.jmx

Source Code of org.infinispan.jmx.AbstractJmxRegistration

/*
* JBoss, Home of Professional Open Source.
* Copyright 2009, Red Hat, Inc. and/or its affiliates, and
* individual contributors as indicated by the @author tags. See the
* copyright.txt file 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.jmx;

import java.util.Set;

import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.ObjectName;

import org.infinispan.CacheException;
import org.infinispan.config.GlobalConfiguration;
import org.infinispan.factories.AbstractComponentRegistry;
import org.infinispan.util.Util;

/**
* Parent class for top level JMX component registration.
*
* @author Galder Zamarreño
* @since 4.0
*/
public abstract class AbstractJmxRegistration {
   String jmxDomain;
   MBeanServer mBeanServer;
   GlobalConfiguration globalConfig;

   protected abstract ComponentsJmxRegistration buildRegistrar(Set<AbstractComponentRegistry.Component> components);

   protected void registerMBeans(Set<AbstractComponentRegistry.Component> components, GlobalConfiguration globalConfig) {
      mBeanServer = getMBeanServer(globalConfig);
      ComponentsJmxRegistration registrar = buildRegistrar(components);
      registrar.registerMBeans();
   }

   protected void unregisterMBeans(Set<AbstractComponentRegistry.Component> components) {
      if (mBeanServer != null) {
         ComponentsJmxRegistration registrar = buildRegistrar(components);
         registrar.unregisterMBeans();
      }
   }

   protected MBeanServer getMBeanServer(GlobalConfiguration configuration) {
      MBeanServerLookup lookup = configuration.getMBeanServerLookupInstance();
      return lookup.getMBeanServer(configuration.getMBeanServerProperties());
   }

   protected String getJmxDomain(String jmxDomain, MBeanServer mBeanServer, String groupName) {
      int index = 2;
      String finalName = jmxDomain;
      boolean done = false;
      while (!done) {
         done = true;
         try {
            ObjectName targetName = new ObjectName(finalName + ':' + groupName + ",*");
            if (mBeanServer.queryNames(targetName, null).size() > 0) {
               finalName = jmxDomain + index++;
               done = false;
            }
         } catch (MalformedObjectNameException e) {
            throw new CacheException("Unable to check for duplicate names", e);
         }
      }

      return finalName;
   }
}
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