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Tomcat example source code file (MBeanUtils.java)

This example Tomcat source code file (MBeanUtils.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Tomcat tags/keywords

dynamicmbean, engine, exception, exception, host, malformedobjectnameexception, managedbean, managedbean, management, mbeanexception, objectname, objectname, service, string, string, util

The Tomcat MBeanUtils.java source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.catalina.mbeans;


import java.util.Hashtable;

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

import org.apache.catalina.Contained;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Engine;
import org.apache.catalina.Group;
import org.apache.catalina.Host;
import org.apache.catalina.Loader;
import org.apache.catalina.Manager;
import org.apache.catalina.Realm;
import org.apache.catalina.Role;
import org.apache.catalina.Server;
import org.apache.catalina.Service;
import org.apache.catalina.User;
import org.apache.catalina.UserDatabase;
import org.apache.catalina.Valve;
import org.apache.catalina.connector.Connector;
import org.apache.catalina.deploy.ContextEnvironment;
import org.apache.catalina.deploy.ContextResource;
import org.apache.catalina.deploy.ContextResourceLink;
import org.apache.catalina.deploy.NamingResources;
import org.apache.catalina.valves.ValveBase;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.IntrospectionUtils;
import org.apache.tomcat.util.modeler.ManagedBean;
import org.apache.tomcat.util.modeler.Registry;


/**
 * Public utility methods in support of the server side MBeans implementation.
 *
 * @author Craig R. McClanahan
 * @author Amy Roh
 * @version $Revision: 500684 $ $Date: 2007-01-28 00:27:18 +0100 (dim., 28 janv. 2007) $
 */

public class MBeanUtils {
    private static Log log = LogFactory.getLog(MBeanUtils.class);

    // ------------------------------------------------------- Static Variables


    /**
     * The set of exceptions to the normal rules used by
     * <code>createManagedBean().  The first element of each pair
     * is a class name, and the second element is the managed bean name.
     */
    private static String exceptions[][] = {
        { "org.apache.ajp.tomcat4.Ajp13Connector",
          "Ajp13Connector" },
        { "org.apache.coyote.tomcat4.Ajp13Connector",
          "CoyoteConnector" },
        { "org.apache.catalina.users.JDBCGroup",
          "Group" },
        { "org.apache.catalina.users.JDBCRole",
          "Role" },
        { "org.apache.catalina.users.JDBCUser",
          "User" },
        { "org.apache.catalina.users.MemoryGroup",
          "Group" },
        { "org.apache.catalina.users.MemoryRole",
          "Role" },
        { "org.apache.catalina.users.MemoryUser",
          "User" },
    };


    /**
     * The configuration information registry for our managed beans.
     */
    private static Registry registry = createRegistry();


    /**
     * The <code>MBeanServer for this application.
     */
    private static MBeanServer mserver = createServer();


    // --------------------------------------------------------- Static Methods

    /**
     * Create and return the name of the <code>ManagedBean that
     * corresponds to this Catalina component.
     *
     * @param component The component for which to create a name
     */
    static String createManagedName(Object component) {

        // Deal with exceptions to the standard rule
        String className = component.getClass().getName();
        for (int i = 0; i < exceptions.length; i++) {
            if (className.equals(exceptions[i][0])) {
                return (exceptions[i][1]);
            }
        }

        // Perform the standard transformation
        int period = className.lastIndexOf('.');
        if (period >= 0)
            className = className.substring(period + 1);
        return (className);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Connector object.
     *
     * @param connector The Connector to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Connector connector)
        throws Exception {

        String mname = createManagedName(connector);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(connector);
        ObjectName oname = createObjectName(domain, connector);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Context object.
     *
     * @param context The Context to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Context context)
        throws Exception {

        String mname = createManagedName(context);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(context);
        ObjectName oname = createObjectName(domain, context);
        if( mserver.isRegistered(oname)) {
            log.debug("Already registered " + oname);
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }

    
    /**
     * Create, register, and return an MBean for this
     * <code>ContextEnvironment object.
     *
     * @param environment The ContextEnvironment to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(ContextEnvironment environment)
        throws Exception {

        String mname = createManagedName(environment);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(environment);
        ObjectName oname = createObjectName(domain, environment);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>ContextResource object.
     *
     * @param resource The ContextResource to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(ContextResource resource)
        throws Exception {

        String mname = createManagedName(resource);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(resource);
        ObjectName oname = createObjectName(domain, resource);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>ContextResourceLink object.
     *
     * @param resourceLink The ContextResourceLink to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(ContextResourceLink resourceLink)
        throws Exception {

        String mname = createManagedName(resourceLink);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(resourceLink);
        ObjectName oname = createObjectName(domain, resourceLink);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }    
 
    /**
     * Create, register, and return an MBean for this
     * <code>Engine object.
     *
     * @param engine The Engine to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Engine engine)
        throws Exception {

        String mname = createManagedName(engine);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(engine);
        ObjectName oname = createObjectName(domain, engine);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Group object.
     *
     * @param group The Group to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Group group)
        throws Exception {

        String mname = createManagedName(group);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(group);
        ObjectName oname = createObjectName(domain, group);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Host object.
     *
     * @param host The Host to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Host host)
        throws Exception {

        String mname = createManagedName(host);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(host);
        ObjectName oname = createObjectName(domain, host);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Loader object.
     *
     * @param loader The Loader to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Loader loader)
        throws Exception {

        String mname = createManagedName(loader);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(loader);
        ObjectName oname = createObjectName(domain, loader);
        if( mserver.isRegistered( oname ))  {
            // side effect: stop it
            mserver.unregisterMBean( oname );
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }

    /**
     * Create, register, and return an MBean for this
     * <code>Manager object.
     *
     * @param manager The Manager to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Manager manager)
        throws Exception {

        String mname = createManagedName(manager);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(manager);
        ObjectName oname = createObjectName(domain, manager);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>MBeanFactory object.
     *
     * @param factory The MBeanFactory to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(MBeanFactory factory)
        throws Exception {

        String mname = createManagedName(factory);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(factory);
        ObjectName oname = createObjectName(domain, factory);
        if( mserver.isRegistered(oname )) {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>NamingResources object.
     *
     * @param resource The NamingResources to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(NamingResources resource)
        throws Exception {

        String mname = createManagedName(resource);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(resource);
        ObjectName oname = createObjectName(domain, resource);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }

    
    /**
     * Create, register, and return an MBean for this
     * <code>Realm object.
     *
     * @param realm The Realm to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Realm realm)
        throws Exception {

        String mname = createManagedName(realm);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(realm);
        ObjectName oname = createObjectName(domain, realm);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Role object.
     *
     * @param role The Role to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Role role)
        throws Exception {

        String mname = createManagedName(role);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(role);
        ObjectName oname = createObjectName(domain, role);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Server object.
     *
     * @param server The Server to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Server server)
        throws Exception {

        String mname = createManagedName(server);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(server);
        ObjectName oname = createObjectName(domain, server);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Service object.
     *
     * @param service The Service to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Service service)
        throws Exception {

        String mname = createManagedName(service);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(service);
        ObjectName oname = createObjectName(domain, service);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>User object.
     *
     * @param user The User to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(User user)
        throws Exception {

        String mname = createManagedName(user);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(user);
        ObjectName oname = createObjectName(domain, user);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>UserDatabase object.
     *
     * @param userDatabase The UserDatabase to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(UserDatabase userDatabase)
        throws Exception {

        String mname = createManagedName(userDatabase);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(userDatabase);
        ObjectName oname = createObjectName(domain, userDatabase);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }


    /**
     * Create, register, and return an MBean for this
     * <code>Valve object.
     *
     * @param valve The Valve to be managed
     *
     * @exception Exception if an MBean cannot be created or registered
     */
    static DynamicMBean createMBean(Valve valve)
        throws Exception {

        String mname = createManagedName(valve);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            Exception e = new Exception("ManagedBean is not found with "+mname);
            throw new MBeanException(e);
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        DynamicMBean mbean = managed.createMBean(valve);
        ObjectName oname = createObjectName(domain, valve);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
        mserver.registerMBean(mbean, oname);
        return (mbean);

    }

    /**
     * Create an <code>ObjectName for this
     * <code>Connector object.
     *
     * @param domain Domain in which this name is to be created
     * @param connector The Connector to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                        Connector connector)
        throws MalformedObjectNameException {

        ObjectName name = null;
        if (connector.getClass().getName().indexOf("CoyoteConnector") >= 0 ) {
            try {
                String address = (String)
                    IntrospectionUtils.getProperty(connector, "address");
                Integer port = (Integer)
                    IntrospectionUtils.getProperty(connector, "port");
                Service service = connector.getService();
                String serviceName = null;
                if (service != null)
                    serviceName = service.getName();
                StringBuffer sb = new StringBuffer(domain);
                sb.append(":type=Connector");
                sb.append(",port=" + port);
                if ((address != null) && (address.length()>0)) {
                    sb.append(",address=" + address);
                }
                name = new ObjectName(sb.toString());
                return (name);
            } catch (Exception e) {
                throw new MalformedObjectNameException
                    ("Cannot create object name for " + connector+e);
            }
        } else {
            throw new MalformedObjectNameException
                ("Cannot create object name for " + connector);
        }

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Context object.
     *
     * @param domain Domain in which this name is to be created
     * @param context The Context to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Context context)
        throws MalformedObjectNameException {

        ObjectName name = null;
        Host host = (Host)context.getParent();
        Service service = ((Engine)host.getParent()).getService();
        String path = context.getPath();
        if (path.length() < 1)
            path = "/";
        // FIXME 
        name = new ObjectName(domain + ":j2eeType=WebModule,name=//" +
                              host.getName()+ path +
                              ",J2EEApplication=none,J2EEServer=none");
    
        return (name);

    }

    
    /**
     * Create an <code>ObjectName for this
     * <code>Service object.
     *
     * @param domain Domain in which this name is to be created
     * @param environment The ContextEnvironment to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    public static ObjectName createObjectName(String domain,
                                              ContextEnvironment environment)
        throws MalformedObjectNameException {

        ObjectName name = null;
        Object container = 
                environment.getNamingResources().getContainer();
        if (container instanceof Server) {
            name = new ObjectName(domain + ":type=Environment" + 
                        ",resourcetype=Global,name=" + environment.getName());
        } else if (container instanceof Context) {        
            String path = ((Context)container).getPath();
            if (path.length() < 1)
                path = "/";
            Host host = (Host) ((Context)container).getParent();
            Engine engine = (Engine) host.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Environment" + 
                        ",resourcetype=Context,path=" + path + 
                        ",host=" + host.getName() +
                        ",name=" + environment.getName());
        }        
        return (name);

    }
    
    
    /**
     * Create an <code>ObjectName for this
     * <code>ContextResource object.
     *
     * @param domain Domain in which this name is to be created
     * @param resource The ContextResource to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    public static ObjectName createObjectName(String domain,
                                              ContextResource resource)
        throws MalformedObjectNameException {

        ObjectName name = null;
        String quotedResourceName = ObjectName.quote(resource.getName());
        Object container = 
                resource.getNamingResources().getContainer();
        if (container instanceof Server) {        
            name = new ObjectName(domain + ":type=Resource" +
                        ",resourcetype=Global,class=" + resource.getType() + 
                        ",name=" + quotedResourceName);
        } else if (container instanceof Context) {                    
            String path = ((Context)container).getPath();
            if (path.length() < 1)
                path = "/";
            Host host = (Host) ((Context)container).getParent();
            Engine engine = (Engine) host.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Resource" +
                        ",resourcetype=Context,path=" + path + 
                        ",host=" + host.getName() +
                        ",class=" + resource.getType() +
                        ",name=" + quotedResourceName);
        }
        
        return (name);

    }
  
    
     /**
     * Create an <code>ObjectName for this
     * <code>ContextResourceLink object.
     *
     * @param domain Domain in which this name is to be created
     * @param resourceLink The ContextResourceLink to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    public static ObjectName createObjectName(String domain,
                                              ContextResourceLink resourceLink)
        throws MalformedObjectNameException {

        ObjectName name = null;
        String quotedResourceLinkName
                = ObjectName.quote(resourceLink.getName());        
        Object container = 
                resourceLink.getNamingResources().getContainer();
        if (container instanceof Server) {        
            name = new ObjectName(domain + ":type=ResourceLink" +
                        ",resourcetype=Global" + 
                        ",name=" + quotedResourceLinkName);
        } else if (container instanceof Context) {                    
            String path = ((Context)container).getPath();
            if (path.length() < 1)
                path = "/";
            Host host = (Host) ((Context)container).getParent();
            Engine engine = (Engine) host.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=ResourceLink" +
                        ",resourcetype=Context,path=" + path + 
                        ",host=" + host.getName() +
                        ",name=" + quotedResourceLinkName);
        }
        
        return (name);

    }
    
    
 
    /**
     * Create an <code>ObjectName for this
     * <code>Engine object.
     *
     * @param domain Domain in which this name is to be created
     * @param engine The Engine to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Engine engine)
        throws MalformedObjectNameException {

        ObjectName name = null;
        name = new ObjectName(domain + ":type=Engine");
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Group object.
     *
     * @param domain Domain in which this name is to be created
     * @param group The Group to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Group group)
        throws MalformedObjectNameException {

        ObjectName name = null;
        name = new ObjectName(domain + ":type=Group,groupname=" +
                              ObjectName.quote(group.getGroupname()) +
                              ",database=" + group.getUserDatabase().getId());
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Host object.
     *
     * @param domain Domain in which this name is to be created
     * @param host The Host to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Host host)
        throws MalformedObjectNameException {

        ObjectName name = null;
        Engine engine = (Engine)host.getParent();
        Service service = engine.getService();
        name = new ObjectName(domain + ":type=Host,host=" +
                              host.getName());
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Loader object.
     *
     * @param domain Domain in which this name is to be created
     * @param loader The Loader to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Loader loader)
        throws MalformedObjectNameException {

        ObjectName name = null;
        Container container = loader.getContainer();

        if (container instanceof Engine) {
            Service service = ((Engine)container).getService();
            name = new ObjectName(domain + ":type=Loader");
        } else if (container instanceof Host) {
            Engine engine = (Engine) container.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Loader,host=" +
                              container.getName());
        } else if (container instanceof Context) {
            String path = ((Context)container).getPath();
            if (path.length() < 1) {
                path = "/";
            }
            Host host = (Host) container.getParent();
            Engine engine = (Engine) host.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Loader,path=" + path +
                              ",host=" + host.getName());
        }

        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Manager object.
     *
     * @param domain Domain in which this name is to be created
     * @param manager The Manager to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Manager manager)
        throws MalformedObjectNameException {

        ObjectName name = null;
        Container container = manager.getContainer();

        if (container instanceof Engine) {
            Service service = ((Engine)container).getService();
            name = new ObjectName(domain + ":type=Manager");
        } else if (container instanceof Host) {
            Engine engine = (Engine) container.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Manager,host=" +
                              container.getName());
        } else if (container instanceof Context) {
            String path = ((Context)container).getPath();
            if (path.length() < 1) {
                path = "/";
            }
            Host host = (Host) container.getParent();
            Engine engine = (Engine) host.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Manager,path=" + path +
                              ",host=" + host.getName());
        }

        return (name);

    }
    
    
    /**
     * Create an <code>ObjectName for this
     * <code>Server object.
     *
     * @param domain Domain in which this name is to be created
     * @param resources The NamingResources to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              NamingResources resources)
        throws MalformedObjectNameException {

        ObjectName name = null;
        Object container = resources.getContainer();        
        if (container instanceof Server) {        
            name = new ObjectName(domain + ":type=NamingResources" + 
                        ",resourcetype=Global");
        } else if (container instanceof Context) {        
            String path = ((Context)container).getPath();
            if (path.length() < 1)
                path = "/";
            Host host = (Host) ((Context)container).getParent();
            Engine engine = (Engine) host.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=NamingResources" + 
                        ",resourcetype=Context,path=" + path + 
                        ",host=" + host.getName());
        }
        
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>MBeanFactory object.
     *
     * @param domain Domain in which this name is to be created
     * @param factory The MBeanFactory to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              MBeanFactory factory)
        throws MalformedObjectNameException {

        ObjectName name = new ObjectName(domain + ":type=MBeanFactory");

        return (name);

    }

    
    /**
     * Create an <code>ObjectName for this
     * <code>Realm object.
     *
     * @param domain Domain in which this name is to be created
     * @param realm The Realm to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Realm realm)
        throws MalformedObjectNameException {

        ObjectName name = null;
        Container container = realm.getContainer();

        if (container instanceof Engine) {
            Service service = ((Engine)container).getService();
            name = new ObjectName(domain + ":type=Realm");
        } else if (container instanceof Host) {
            Engine engine = (Engine) container.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Realm,host=" +
                              container.getName());
        } else if (container instanceof Context) {
            String path = ((Context)container).getPath();
            if (path.length() < 1) {
                path = "/";
            }
            Host host = (Host) container.getParent();
            Engine engine = (Engine) host.getParent();
            Service service = engine.getService();
            name = new ObjectName(domain + ":type=Realm,path=" + path +
                              ",host=" + host.getName());
        }

        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Role object.
     *
     * @param domain Domain in which this name is to be created
     * @param role The Role to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Role role)
        throws MalformedObjectNameException {

        ObjectName name = null;
        name = new ObjectName(domain + ":type=Role,rolename=" +
                              role.getRolename() + ",database=" +
                              role.getUserDatabase().getId());
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Server object.
     *
     * @param domain Domain in which this name is to be created
     * @param server The Server to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Server server)
        throws MalformedObjectNameException {

        ObjectName name = null;
        name = new ObjectName(domain + ":type=Server");
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Service object.
     *
     * @param domain Domain in which this name is to be created
     * @param service The Service to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              Service service)
        throws MalformedObjectNameException {

        ObjectName name = null;
        name = new ObjectName(domain + ":type=Service,serviceName=" + 
                            service.getName());
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>User object.
     *
     * @param domain Domain in which this name is to be created
     * @param user The User to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              User user)
        throws MalformedObjectNameException {

        ObjectName name = null;
        name = new ObjectName(domain + ":type=User,username=" +
                              ObjectName.quote(user.getUsername())
                              + ",database=" + user.getUserDatabase().getId());
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>UserDatabase object.
     *
     * @param domain Domain in which this name is to be created
     * @param userDatabase The UserDatabase to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                              UserDatabase userDatabase)
        throws MalformedObjectNameException {

        ObjectName name = null;
        name = new ObjectName(domain + ":type=UserDatabase,database=" +
                              userDatabase.getId());
        return (name);

    }


    /**
     * Create an <code>ObjectName for this
     * <code>Valve object.
     *
     * @param domain Domain in which this name is to be created
     * @param valve The Valve to be named
     *
     * @exception MalformedObjectNameException if a name cannot be created
     */
    static ObjectName createObjectName(String domain,
                                       Valve valve)
        throws MalformedObjectNameException {
        if( valve instanceof ValveBase ) {
            ObjectName name=((ValveBase)valve).getObjectName();
            if( name != null )
                return name;
        }

        ObjectName name = null;
        Container container = null;
        String className=valve.getClass().getName();
        int period = className.lastIndexOf('.');
        if (period >= 0)
            className = className.substring(period + 1);
        if( valve instanceof Contained ) {
            container = ((Contained)valve).getContainer();
        }
        if( container == null ) {
            throw new MalformedObjectNameException(
                               "Cannot create mbean for non-contained valve " +
                               valve);
        }        
        if (container instanceof Engine) {
            Service service = ((Engine)container).getService();
            String local="";
            int seq = getSeq(local);
            String ext="";
            if( seq > 0 ) {
                ext=",seq=" + seq;
            }
            name = new ObjectName(domain + ":type=Valve,name=" + className + 
                                    ext + local );
        } else if (container instanceof Host) {
            Service service = ((Engine)container.getParent()).getService();
            String local=",host=" +container.getName();
            int seq = getSeq(local);
            String ext="";
            if( seq > 0 ) {
                ext=",seq=" + seq;
            }
            name = new ObjectName(domain + ":type=Valve,name=" + className + 
                                    ext + local );
        } else if (container instanceof Context) {
            String path = ((Context)container).getPath();
            if (path.length() < 1) {
                path = "/";
            }
            Host host = (Host) container.getParent();
            Service service = ((Engine) host.getParent()).getService();
            String local=",path=" + path + ",host=" +
                    host.getName();
            int seq = getSeq(local);
            String ext="";
            if( seq > 0 ) {
                ext=",seq=" + seq;
            }
            name = new ObjectName(domain + ":type=Valve,name=" + className + 
                                    ext + local );
        }

        return (name);

    }

    static Hashtable seq=new Hashtable();
    static int getSeq( String key ) {
        int i[]=(int [])seq.get( key );
        if (i == null ) {
            i=new int[1];
            i[0]=0;
            seq.put( key, i);
        } else {
            i[0]++;
        }
        return i[0];
    }

    /**
     * Create and configure (if necessary) and return the registry of
     * managed object descriptions.
     */
    public synchronized static Registry createRegistry() {

        if (registry == null) {
            registry = Registry.getRegistry(null, null);
            ClassLoader cl=ServerLifecycleListener.class.getClassLoader();

            registry.loadDescriptors("org.apache.catalina.mbeans",  cl);
            registry.loadDescriptors("org.apache.catalina.authenticator", cl);
            registry.loadDescriptors("org.apache.catalina.core", cl);
            registry.loadDescriptors("org.apache.catalina", cl);
            registry.loadDescriptors("org.apache.catalina.deploy", cl);
            registry.loadDescriptors("org.apache.catalina.loader", cl);
            registry.loadDescriptors("org.apache.catalina.realm", cl);
            registry.loadDescriptors("org.apache.catalina.session", cl);
            registry.loadDescriptors("org.apache.catalina.startup", cl);
            registry.loadDescriptors("org.apache.catalina.users", cl);
            registry.loadDescriptors("org.apache.catalina.ha", cl);
            registry.loadDescriptors("org.apache.catalina.connector", cl);
            registry.loadDescriptors("org.apache.catalina.valves",  cl);
        }
        return (registry);

    }


    /**
     * Create and configure (if necessary) and return the
     * <code>MBeanServer with which we will be
     * registering our <code>DynamicMBean implementations.
     */
    public synchronized static MBeanServer createServer() {

        if (mserver == null) {
            try {
                mserver = Registry.getRegistry(null, null).getMBeanServer();
            } catch (Throwable t) {
                t.printStackTrace(System.out);
                System.exit(1);
            }
        }
        return (mserver);

    }


    /**
     * Deregister the MBean for this
     * <code>Connector object.
     *
     * @param connector The Connector to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Connector connector, Service service)
        throws Exception {

        connector.setService(service);
        String mname = createManagedName(connector);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, connector);
        connector.setService(null);
        if( mserver.isRegistered( oname ))  {
            mserver.unregisterMBean(oname);
        }
    }


    /**
     * Deregister the MBean for this
     * <code>Context object.
     *
     * @param context The Context to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Context context)
        throws Exception {

        String mname = createManagedName(context);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, context);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }

    
    /**
     * Deregister the MBean for this
     * <code>ContextEnvironment object.
     *
     * @param environment The ContextEnvironment to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(ContextEnvironment environment)
        throws Exception {

        String mname = createManagedName(environment);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, environment);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }
    
    
    /**
     * Deregister the MBean for this
     * <code>ContextResource object.
     *
     * @param resource The ContextResource to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(ContextResource resource)
        throws Exception {

        String mname = createManagedName(resource);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, resource);
        if( mserver.isRegistered(oname ))
            mserver.unregisterMBean(oname);

    }
     
    
    /**
     * Deregister the MBean for this
     * <code>ContextResourceLink object.
     *
     * @param resourceLink The ContextResourceLink to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(ContextResourceLink resourceLink)
        throws Exception {

        String mname = createManagedName(resourceLink);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, resourceLink);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }   
    
    /**
     * Deregister the MBean for this
     * <code>Engine object.
     *
     * @param engine The Engine to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Engine engine)
        throws Exception {

        String mname = createManagedName(engine);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, engine);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Group object.
     *
     * @param group The Group to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Group group)
        throws Exception {

        String mname = createManagedName(group);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, group);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Host object.
     *
     * @param host The Host to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Host host)
        throws Exception {

        String mname = createManagedName(host);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, host);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Loader object.
     *
     * @param loader The Loader to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Loader loader)
        throws Exception {

        String mname = createManagedName(loader);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, loader);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Manager object.
     *
     * @param manager The Manager to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Manager manager)
        throws Exception {

        String mname = createManagedName(manager);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, manager);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }
    
    
   /**
     * Deregister the MBean for this
     * <code>NamingResources object.
     *
     * @param resources The NamingResources to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(NamingResources resources)
        throws Exception {

        String mname = createManagedName(resources);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, resources);
       if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }
    
    
    /**
     * Deregister the MBean for this
     * <code>Realm object.
     *
     * @param realm The Realm to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Realm realm)
        throws Exception {

        String mname = createManagedName(realm);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, realm);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Role object.
     *
     * @param role The Role to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Role role)
        throws Exception {

        String mname = createManagedName(role);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, role);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Server object.
     *
     * @param server The Server to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Server server)
        throws Exception {

        String mname = createManagedName(server);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, server);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Service object.
     *
     * @param service The Service to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Service service)
        throws Exception {

        String mname = createManagedName(service);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, service);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>User object.
     *
     * @param user The User to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(User user)
        throws Exception {

        String mname = createManagedName(user);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, user);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>UserDatabase object.
     *
     * @param userDatabase The UserDatabase to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(UserDatabase userDatabase)
        throws Exception {

        String mname = createManagedName(userDatabase);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, userDatabase);
        if( mserver.isRegistered(oname) )
            mserver.unregisterMBean(oname);

    }


    /**
     * Deregister the MBean for this
     * <code>Valve object.
     *
     * @param valve The Valve to be managed
     *
     * @exception Exception if an MBean cannot be deregistered
     */
    static void destroyMBean(Valve valve, Container container)
        throws Exception {

        ((Contained)valve).setContainer(container);
        String mname = createManagedName(valve);
        ManagedBean managed = registry.findManagedBean(mname);
        if (managed == null) {
            return;
        }
        String domain = managed.getDomain();
        if (domain == null)
            domain = mserver.getDefaultDomain();
        ObjectName oname = createObjectName(domain, valve);
        try {
            ((Contained)valve).setContainer(null);
        } catch (Throwable t) {
        ;
        }
        if( mserver.isRegistered(oname) ) {
            mserver.unregisterMBean(oname);
        }

    }

}

Other Tomcat examples (source code examples)

Here is a short list of links related to this Tomcat MBeanUtils.java source code file:

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All Rights Reserved.