/*
* Copyright 2005 The Apache Software Foundation
*
* 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.apache.felix.jmood;
import java.io.IOException;
import java.net.InetAddress;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;
import java.rmi.server.UnicastRemoteObject;
import javax.management.InstanceAlreadyExistsException;
import javax.management.InstanceNotFoundException;
import javax.management.MBeanRegistrationException;
import javax.management.MBeanServer;
import javax.management.MalformedObjectNameException;
import javax.management.NotCompliantMBeanException;
import javax.management.ObjectName;
import javax.management.remote.JMXConnectorServer;
import javax.management.remote.JMXConnectorServerFactory;
import javax.management.remote.JMXServiceURL;
public class RMIHandler {
private int port;
private Registry rmiRegistry;
private AgentContext ac;
private JMXConnectorServer connectorServer;
private MBeanServer server;
private static final String connectorServerOname="RemotingService:type=ConnectorServer, subtype=RMIConnectorServer, provider=JRE";
public RMIHandler(int port, AgentContext ac, MBeanServer server){
this.port=port;
this.ac=ac;
this.server=server;
}
public void start() throws IOException, InstanceAlreadyExistsException, MBeanRegistrationException, NotCompliantMBeanException, MalformedObjectNameException, NullPointerException, InstanceNotFoundException {
Thread t=new Thread(){
public void run() {
try {
rmiRegistry=LocateRegistry.createRegistry(port);
} catch (RemoteException e) {
ac.warning(e.getMessage()+"\n"+"Possibly some other framework already running, skipping RMI registry creation");
return;
}
}
};
t.setName("RMIREGISTRY");
t.setContextClassLoader(this.getClass().getClassLoader());
t.start();
InetAddress[] addresses=InetAddress.getAllByName(InetAddress.getLocalHost().getCanonicalHostName());
//Do not attach the agent to the loopback address
InetAddress address=null;
for (int i = 0; i < addresses.length; i++) {
if (!addresses[i].isLoopbackAddress()) {
address=addresses[i];
break;
}
}
if (address==null){
StringBuffer msg=new StringBuffer("java.net.InetAddress could not find non-localhost IP. \n");
msg.append(" Is there any network interface available? Are you using Linux?. \n")
.append("If you are using debian-based distros, try editing the /etc/hosts file so that it does not contain")
.append(" something like '127.0.0.1 ${hostname}'");
this.ac.warning(msg.toString());
address=InetAddress.getLocalHost();
}
JMXServiceURL url = new JMXServiceURL(
"service:jmx:rmi:///jndi/rmi://"+address.getHostName()+":"
+ this.port + "/server");
this.ac.debug(url.toString());
this.connectorServer = JMXConnectorServerFactory.newJMXConnectorServer(
url, null,this.server);
this.server.registerMBean(this.connectorServer, new ObjectName(connectorServerOname));
this.connectorServer.start();
}
public void stop() throws Exception {
this.connectorServer.stop();
UnicastRemoteObject.unexportObject(this.rmiRegistry, true);
this.server.unregisterMBean(new ObjectName(connectorServerOname));
}
}