/* | |
* 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)); | |
} | |
} |