001    /**
002     *  Licensed to the Apache Software Foundation (ASF) under one or more
003     *  contributor license agreements.  See the NOTICE file distributed with
004     *  this work for additional information regarding copyright ownership.
005     *  The ASF licenses this file to You under the Apache License, Version 2.0
006     *  (the "License"); you may not use this file except in compliance with
007     *  the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    package org.apache.geronimo.clustering;
018    
019    import java.io.IOException;
020    import java.util.HashMap;
021    import java.util.Map;
022    
023    import javax.management.remote.JMXConnector;
024    import javax.management.remote.JMXConnectorFactory;
025    import javax.management.remote.JMXServiceURL;
026    
027    /**
028     *
029     * @version $Rev$ $Date$
030     */
031    public abstract class AbstractNode implements Node {
032        private final String name;
033        
034        public AbstractNode(String name) {
035            if (null == name) {
036                throw new IllegalArgumentException("name is required");
037            }
038            this.name = name;
039        }
040    
041        public String getName() {
042            return name;
043        }
044        
045        public JMXConnector getJMXConnector() throws IOException {
046            Map<String, Object> environment = new HashMap<String, Object>();
047            environment.put(JMXConnectorFactory.DEFAULT_CLASS_LOADER, AbstractNode.class.getClassLoader());
048            JMXServiceURL address = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://" + getHost() + ":" + getPort() + "/JMXConnector");
049            return JMXConnectorFactory.connect(address, environment);
050        }
051        
052        protected abstract String getHost();
053        
054        protected abstract int getPort();
055    
056        @Override
057        public boolean equals(Object obj) {
058            if (!(obj instanceof AbstractNode)) {
059                return false;
060            }
061            AbstractNode other = (AbstractNode) obj;
062            return name.equals(other.name);
063        }
064        
065        @Override
066        public int hashCode() {
067            return name.hashCode();
068        }
069        
070    }