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A light weight and high performance Java cache library. Extension for adding JMX support.
There is a newer version: 0.28-BETA
package org.cache2k.ee.impl;

/*
 * #%L
 * cache2k for enterprise environments
 * %%
 * Copyright (C) 2000 - 2016 headissue GmbH, Munich
 * %%
 * 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, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * 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, see
 * .
 * #L%
 */

import org.cache2k.Cache;
import org.cache2k.CacheManager;
import org.cache2k.impl.BaseCache;
import org.cache2k.impl.CacheLifeCycleListener;
import org.cache2k.impl.CacheManagerImpl;
import org.cache2k.impl.CacheManagerLifeCycleListener;
import org.cache2k.impl.CacheUsageExcpetion;

import javax.management.InstanceNotFoundException;
import javax.management.MBeanServer;
import javax.management.ObjectName;
import java.lang.management.ManagementFactory;

/**
 * Adds optional support for JMX.
 */
public class JmxSupport implements CacheLifeCycleListener, CacheManagerLifeCycleListener {

  @Override
  public void cacheCreated(CacheManager cm, Cache c) {
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    if (c instanceof BaseCache) {
      String _name = standardName(cm, c);
      try {
         mbs.registerMBean(
           new CacheMXBeanImpl((BaseCache) c),
           new ObjectName(_name));
      } catch (Exception e) {
        throw new CacheUsageExcpetion("Error registering JMX bean, name='" + _name + "'", e);
      }
    }
  }

  @Override
  public void cacheDestroyed(CacheManager cm, Cache c) {
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    if (c instanceof BaseCache) {
      String _name = standardName(cm, c);
      try {
        mbs.unregisterMBean(new ObjectName(_name));
      } catch (InstanceNotFoundException ignore) {
      } catch (Exception e) {
        throw new CacheUsageExcpetion("Error deregistering JMX bean, name='" + _name + "'", e);
      }
    }
  }

  @Override
  public void managerCreated(CacheManager m) {
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    String _name = cacheManagerName(m);
    try {
      mbs.registerMBean(new ManagerMXBeanImpl((CacheManagerImpl) m),new ObjectName(_name));
    } catch (Exception e) {
      throw new CacheUsageExcpetion("Error registering JMX bean, name='" + _name + "'", e);
    }
  }

  @Override
  public void managerDestroyed(CacheManager m) {
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    String _name = cacheManagerName(m);
    try {
      mbs.unregisterMBean(new ObjectName(_name));
    } catch (InstanceNotFoundException ignore) {
    } catch (Exception e) {
      throw new CacheUsageExcpetion("Error deregistering JMX bean, name='" + _name + "'", e);
    }
  }

  private static String cacheManagerName(CacheManager cm) {
    return
      "org.cache2k" + ":" +
      "type=CacheManager" +
      ",name=" + cm.getName();
  }

  private static String standardName(CacheManager cm, Cache c) {
    return
      "org.cache2k" + ":" +
      "type=Cache" +
      ",manager=" + cm.getName() +
      ",name=" + c.getName();
  }

}