Examples with ReadOpFileAccessController org.apache.geode.management.internal.unsafe.ReadOpFileAccessController used on opensource projects

Example 1 with ReadOpFileAccessController

use of org.apache.geode.management.internal.unsafe.ReadOpFileAccessController in project geode by apache.

the class ManagementAgent method configureAndStart.

/**
   * http://docs.oracle.com/javase/6/docs/technotes/guides/management/agent.html #gdfvq
   * https://blogs.oracle.com/jmxetc/entry/java_5_premain_rmi_connectors
   * https://blogs.oracle.com/jmxetc/entry/building_a_remotely_stoppable_connector
   * https://blogs.oracle.com/jmxetc/entry/jmx_connecting_through_firewalls_using
   * https://blogs.oracle.com/jmxetc/entry/java_5_premain_rmi_connectors
   */
private void configureAndStart() throws IOException {
    // get the port for RMI Registry and RMI Connector Server
    final int port = this.config.getJmxManagerPort();
    final String hostname;
    final InetAddress bindAddr;
    if (StringUtils.isBlank(this.config.getJmxManagerBindAddress())) {
        hostname = SocketCreator.getLocalHost().getHostName();
        bindAddr = null;
    } else {
        hostname = this.config.getJmxManagerBindAddress();
        bindAddr = InetAddress.getByName(hostname);
    }
    String jmxManagerHostnameForClients = this.config.getJmxManagerHostnameForClients();
    if (StringUtils.isNotBlank(jmxManagerHostnameForClients)) {
        System.setProperty("java.rmi.server.hostname", jmxManagerHostnameForClients);
    }
    final SocketCreator socketCreator = SocketCreatorFactory.getSocketCreatorForComponent(SecurableCommunicationChannel.JMX);
    final boolean ssl = socketCreator.useSSL();
    if (logger.isDebugEnabled()) {
        logger.debug("Starting jmx manager agent on port {}{}", port, (bindAddr != null ? (" bound to " + bindAddr) : "") + (ssl ? " using SSL" : ""));
    }
    // RMISocketFactory.getDefaultSocketFactory();
    RMIClientSocketFactory rmiClientSocketFactory = ssl ? new SslRMIClientSocketFactory() : null;
    RMIServerSocketFactory rmiServerSocketFactory = new GemFireRMIServerSocketFactory(socketCreator, bindAddr);
    // Following is done to prevent rmi causing stop the world gcs
    System.setProperty("sun.rmi.dgc.server.gcInterval", Long.toString(Long.MAX_VALUE - 1));
    // Create the RMI Registry using the SSL socket factories above.
    // In order to use a single port, we must use these factories
    // everywhere, or nowhere. Since we want to use them in the JMX
    // RMI Connector server, we must also use them in the RMI Registry.
    // Otherwise, we wouldn't be able to use a single port.
    // Start an RMI registry on port <port>.
    registry = LocateRegistry.createRegistry(port, rmiClientSocketFactory, rmiServerSocketFactory);
    // Retrieve the PlatformMBeanServer.
    MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
    // Environment map. why is this declared as HashMap?
    final HashMap<String, Object> env = new HashMap<String, Object>();
    // Manually creates and binds a JMX RMI Connector Server stub with the
    // registry created above: the port we pass here is the port that can
    // be specified in "service:jmx:rmi://"+hostname+":"+port - where the
    // RMI server stub and connection objects will be exported.
    // Here we choose to use the same port as was specified for the
    // RMI Registry. We can do so because we're using \*the same\* client
    // and server socket factories, for the registry itself \*and\* for this
    // object.
    final RMIServerImpl stub = new RMIJRMPServerImpl(port, rmiClientSocketFactory, rmiServerSocketFactory, env);
    // Create an RMI connector server.
    //
    // As specified in the JMXServiceURL the RMIServer stub will be
    // registered in the RMI registry running in the local host on
    // port <port> with the name "jmxrmi". This is the same name the
    // out-of-the-box management agent uses to register the RMIServer
    // stub too.
    //
    // The port specified in "service:jmx:rmi://"+hostname+":"+port
    // is the second port, where RMI connection objects will be exported.
    // Here we use the same port as that we choose for the RMI registry.
    // The port for the RMI registry is specified in the second part
    // of the URL, in "rmi://"+hostname+":"+port
    //
    // We construct a JMXServiceURL corresponding to what we have done
    // for our stub...
    final JMXServiceURL url = new JMXServiceURL("service:jmx:rmi://" + hostname + ":" + port + "/jndi/rmi://" + hostname + ":" + port + "/jmxrmi");
    // Create an RMI connector server with the JMXServiceURL
    //
    // JDK 1.5 cannot use JMXConnectorServerFactory because of
    // http://bugs.sun.com/view_bug.do?bug_id=5107423
    // but we're using JDK 1.6
    jmxConnectorServer = new RMIConnectorServer(new JMXServiceURL("rmi", hostname, port), env, stub, mbs) {

        @Override
        public JMXServiceURL getAddress() {
            return url;
        }

        @Override
        public synchronized void start() throws IOException {
            try {
                registry.bind("jmxrmi", stub);
            } catch (AlreadyBoundException x) {
                final IOException io = new IOException(x.getMessage());
                io.initCause(x);
                throw io;
            }
            super.start();
        }
    };
    if (securityService.isIntegratedSecurity()) {
        shiroAuthenticator = new JMXShiroAuthenticator();
        env.put(JMXConnectorServer.AUTHENTICATOR, shiroAuthenticator);
        jmxConnectorServer.addNotificationListener(shiroAuthenticator, null, jmxConnectorServer.getAttributes());
        // always going to assume authorization is needed as well, if no custom AccessControl, then
        // the CustomAuthRealm
        // should take care of that
        MBeanServerWrapper mBeanServerWrapper = new MBeanServerWrapper();
        jmxConnectorServer.setMBeanServerForwarder(mBeanServerWrapper);
        registerAccessControlMBean();
    } else {
        /* Disable the old authenticator mechanism */
        String pwFile = this.config.getJmxManagerPasswordFile();
        if (pwFile != null && pwFile.length() > 0) {
            env.put("jmx.remote.x.password.file", pwFile);
        }
        String accessFile = this.config.getJmxManagerAccessFile();
        if (accessFile != null && accessFile.length() > 0) {
            // Lets not use default connector based authorization
            // env.put("jmx.remote.x.access.file", accessFile);
            // Rewire the mbs hierarchy to set accessController
            ReadOpFileAccessController controller = new ReadOpFileAccessController(accessFile);
            controller.setMBeanServer(mbs);
            mbs = controller;
        }
    }
    jmxConnectorServer.start();
    if (logger.isDebugEnabled()) {
        logger.debug("Finished starting jmx manager agent.");
    }
}