Invoking the FileNotificationMBean from a Java program

The following Java™ code snippet provides an example of using the REST connector to invoke the FileNotificationMBean method notifyFileChanges. This example updates the running server configuration with changes that are made to either of two server configuration files: /var/zosconnect/servers/serverName/server.xml and /var/zosconnect/servers/serverName/includedConfig.xml.

    /** z/OS Connect Server hostname */
    private final static String hostname = "companyhost.company.com";
    /** z/OS Connect Server HTTPS port */
    private final static String httpsPort = "9443";
    /** z/OS Connect Server administration role user */
    private final static String adminUserid = "adminUser";
    /** z/OS Connect Server administration role user's password */
    private final static String adminPassword = "adminPswd";
    /** Truststore containing z/OS Connect Server's public certificate */
    private final static String trustStoreLocation = "/mydir/trust.p12";
    /** Truststore password */
    private final static String trustStorePassword = "truststorePswd";
    /** Absolute paths of configuration files to monitor */
    private final static String configFilePath1 = "/var/zosconnect/servers/serverName/server.xml";
    private final static String configFilePath2 = "/var/zosconnect/servers/serverName/includedConfig.xml";

    /** FileNotificationMBean name */   
    private final static String MBEAN_FILE_NOTIFICATION = "WebSphere:service=com.ibm.ws.kernel.filemonitor.FileNotificationMBean";
    /** FileNotificationMBean method notifyFileChanges signature */
    private final static String[]  MBEAN_FILE_NOTIFICATION_NOTIFYFILECHANGES_SIGNATURE = new String[]  {
        Collection.class.getName(),
        Collection.class.getName(),
        Collection.class.getName() };
    /** JMX service URL*/
    private static String jmxServiceURL = "service:jmx:rest://" + hostname + ":" + httpsPort + "/IBMJMXConnectorREST";   
    ...
    public void invokeFileNotificationMBean() {
    ...      
      // Get secure remote JMX MBean server connection      
      System.setProperty("javax.net.ssl.trustStore", trustStoreLocation);      
      System.setProperty("javax.net.ssl.trustStorePassword", trustStorePassword);      
      HashMap<String, Object> environment = new HashMap<String, Object>();      
      environment.put("jmx.remote.protocol.provider.pkgs", "com.ibm.ws.jmx.connector.client");      
      environment.put("com.ibm.ws.jmx.connector.client.disableURLHostnameVerification", Boolean.TRUE);      
      environment.put(JMXConnector.CREDENTIALS, new String[] { adminUserid , adminPassword });      
      JMXServiceURL url = new JMXServiceURL(jmxServiceURL);      
      JMXConnector jmxConnector = JMXConnectorFactory.newJMXConnector(url, environment);      
      jmxConnector.connect();      
      MBeanServerConnection mbsc = jmxConnector.getMBeanServerConnection();                  

      // Invoke FileNotificationMBean      
      ObjectName fileMonitorMBeanName = new ObjectName(MBEAN_FILE_NOTIFICATION);      
      if (mbsc.isRegistered(fileMonitorMBeanName)) {
          // Create a list of absolute paths of each file to be checked
          List<String> modifiedFilePaths = new ArrayList<String>();
          modifiedFilePaths.add(configFilePath1);
          modifiedFilePaths.add(configFilePath2);

         // Set MBean method notifyFileChanges parameters (createdFiles, modifiedFiles, deletedFiles)
         Object[] params = new Object[] { null, modifiedFilePaths, null };

         // Invoke FileNotificationMBean method notifyFileChanges
          mbsc.invoke(fileMonitorMBeanName, "notifyFileChanges", params,
      MBEAN_FILE_NOTIFICATION_NOTIFYFILECHANGES_SIGNATURE);
      }
      else {
        System.err.println("MBean invoke request failed " + MBEAN_FILE_NOTIFICATION + " is not registered.");
      }
      ...  
      // Close the JMX connection
     jmxConnector.close();  
     ...
    }