Examples of javax.management.loading.MLet

javax.management.loading.MLet
URL classloader capable of parsing an MLet text file adhering to the file format defined in the JMX specification (v1.0). @see javax.management.loading.MLetMBean @author Juha Lindfors. @version $Revision: 1.13 $
Revisions:
20020313 Juha Lindfors:
- Added MLet text file ARG tag support
20020317 Juha Lindfors:
- Unified Loader Repository support
- We need to intercept addURL() call since MLet CL exposes this as a public method (unlike URL CL). This means the set of URLs in this classloaders scope may change after it has been registered to the repository.
- We override loadClass() to delegate class loading directly to the repository in case a Unified Loader Repository is installed. This means in case of ULR this classloader is never used to load classes. The ULR has a set of Unified CLs that match the URLs added to this CL.
20020501 Fusayuki Minamoto:
- Added MLet text file VERSION tag support
20020811 Adrian Brock:
- Fix the Unified Repository Support to be more spec compliant.


   public void testMultipleRemoteMBeanServers() throws Exception
   {
      // The 1st remote server
      MBeanServer remoteServer1 = newMBeanServer();
      MLet mlet = new MLet(new URL[]{new URL("http", "host", 80, "/path")});
      ObjectName remoteMLetName = ObjectName.getInstance(":type=mlet");
      remoteServer1.registerMBean(mlet, remoteMLetName);
      JMXServiceURL address1 = new JMXServiceURL("rmi", "localhost", 0);
      JMXConnectorServer connectorServer1 = JMXConnectorServerFactory.newJMXConnectorServer(address1, null, null);
      ObjectName connectorServerName1 = ObjectName.getInstance(":type=connector,protocol=" + address1.getProtocol());
      remoteServer1.registerMBean(connectorServer1, connectorServerName1);
      connectorServer1.start();
      address1 = connectorServer1.getAddress();


      // The 2nd remote server
      MBeanServer remoteServer2 = newMBeanServer();
      Timer timer = new Timer();
      ObjectName remoteTimerName = ObjectName.getInstance(":type=timer");
      remoteServer2.registerMBean(timer, remoteTimerName);
      timer.start();
      JMXServiceURL address2 = new JMXServiceURL("rmi", "localhost", 0);
      JMXConnectorServer connectorServer2 = JMXConnectorServerFactory.newJMXConnectorServer(address2, null, remoteServer2);
      connectorServer2.start();
      address2 = connectorServer2.getAddress();


      // The local server
      MBeanServer localServer = newMBeanServer();
      RemoteMBeanProxy proxy1 = new RemoteMBeanProxy(remoteMLetName, address1, null, null);
      JMXConnector cntor = JMXConnectorFactory.connect(address2);
      RemoteMBeanProxy proxy2 = new RemoteMBeanProxy(remoteTimerName, cntor.getMBeanServerConnection());
      ObjectName proxyName1 = ObjectName.getInstance(":proxy=" + ObjectName.quote(remoteMLetName.getCanonicalName()));
      ObjectName proxyName2 = ObjectName.getInstance(":proxy=" + ObjectName.quote(remoteTimerName.getCanonicalName()));
      localServer.registerMBean(proxy1, proxyName1);
      localServer.registerMBean(proxy2, proxyName2);
      JMXServiceURL address3 = new JMXServiceURL("local", "localhost", 0);
      JMXConnectorServer connectorServer3 = JMXConnectorServerFactory.newJMXConnectorServer(address3, null, localServer);
      connectorServer3.start();
      address3 = connectorServer3.getAddress();


      // The client
      JMXConnector connector = JMXConnectorFactory.connect(address3);
      MBeanServerConnection mbsc = connector.getMBeanServerConnection();


      // Tests
      URL[] urls = (URL[])mbsc.getAttribute(proxyName1, "URLs");
      if (!Utils.arrayEquals(urls, mlet.getURLs())) fail();


      if (!timer.isActive()) fail();
      mbsc.invoke(proxyName2, "stop", null, null);
      if (timer.isActive()) fail();
   }

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                server=MBeanServerFactory.createMBeanServer();


                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler-ant",
                        "loader", "ant");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);


                if( log.isDebugEnabled())
                    log.debug("Creating mbean server and loader "+ mlet +
                            " " + this.getClass().getClassLoader());

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                server=MBeanServerFactory.createMBeanServer();


                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler-ant",
                        "loader", "ant");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);


                if( log.isDebugEnabled())
                    log.debug("Creating mbean server and loader "+ mlet +
                            " " + this.getClass().getClassLoader());

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            // XXX Not very clean...  Just a workaround
            if( ! loaderLoaded ) {
                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler",
                        "loader", "modeler");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);
                loaderLoaded=true;
            }
        
            // Process nodes

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            // XXX Not very clean...  Just a workaround
            if( ! loaderLoaded ) {
                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler",
                        "loader", "modeler");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);
                loaderLoaded=true;
            }
        
            // Process nodes

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            // XXX Not very clean...  Just a workaround
            if( ! loaderLoaded ) {
                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler",
                        "loader", "modeler");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);
                loaderLoaded=true;
            }
        
            // Process nodes

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            // XXX Not very clean...  Just a workaround
            if( ! loaderLoaded ) {
                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler",
                        "loader", "modeler");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);
                loaderLoaded=true;
            }
        
            // Process nodes

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            ex.initCause(e);
            throw ex;
        }




        MLet bootMLet = new MLet();
        try {
            server.registerMBean(bootMLet, objectName);
        } catch (Exception e) {
            // it should be impossible for this registration to fail
            IllegalStateException ex = new IllegalStateException(e.getMessage());
            ex.initCause(e);
            throw ex;
        }
        return bootMLet.getMBeansFromURL(mletURL);
    }

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            // XXX Not very clean...  Just a workaround
            if( ! loaderLoaded ) {
                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler",
                        "loader", "modeler");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);
                loaderLoaded=true;
            }
        
            // Process nodes

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            // XXX Not very clean...  Just a workaround
            if( ! loaderLoaded ) {
                // Register a loader that will be find ant classes.
                ObjectName defaultLoader= new ObjectName("modeler",
                        "loader", "modeler");
                MLet mlet=new MLet( new URL[0], this.getClass().getClassLoader());
                server.registerMBean(mlet, defaultLoader);
                loaderLoaded=true;
            }
        
            // Process nodes

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