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/* 
 * Copyright 2009 Laurent Bovet, Swiss Post IT 
 *
 * Licensed 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.jminix.server;

import java.lang.management.ManagementFactory;
import java.util.ArrayList;
import java.util.List;

import javax.management.MBeanServerConnection;
import javax.management.MBeanServerFactory;

import org.apache.commons.logging.LogFactory;

/**
 * Provides the default local server
 *
 * @author Laurent Bovet ([email protected])
 * @since 0.8
 */
public class DefaultLocalServerConnectionProvider extends AbstractListServerConnectionProvider
{

    public List getConnections()
    {
       List result = new ArrayList();
       
       // Make sure the platform server is instanciated
       try {
           ManagementFactory.getPlatformMBeanServer();
       }
       catch (SecurityException ex) {
           LogFactory.getLog(this.getClass()).warn("Not allowed to obtain the Java platform MBeanServer", ex);
       }
       
       try {
           List servers = MBeanServerFactory.findMBeanServer(null);
           
           LogFactory.getLog(this.getClass()).debug("Found "+servers.size()+" MBean servers");
           
    	   result.addAll(servers);
       } catch(Exception e) {
    	   LogFactory.getLog(this.getClass()).warn("Could not register the Java platform MBeanServer", e);           
       }
       
       return result;
    }

}