Update an application through programming



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You can update an existing application through the administrative console, the wsadmin tool, or programming. Use this example to completely update an application through programming.


Before you begin

This task assumes a basic familiarity with MBean programming.

Before one can update an application on WebSphere Application Server, first install your application.



Perform the following tasks to completely update an application through programming.



  1. Connect to WebSphere Application Server.

  2. Create the application management proxy.

  3. Create the notification filter for listening to events.

  4. Add the listener.

  5. Prepare the EAR file by populating it with binding information.

  6. Update the application.

  7. Wait for some timeout so that the program does not end.

  8. Listen to Java Management Extensions (JMX) notifications to understand completion of the operation.

  9. When the update is done, remove the listener and quit.



After you successfully run the code, the application is updated.



The following example shows how to update an application based on the previous steps. Some statements are split on multiple lines for printing purposes.

import java.lang.*;
import java.io.*;
import java.util.*;
import java.lang.reflect.*;
import com.ibm.websphere.management.application.*;
import com.ibm.websphere.management.application.client.*;
import com.ibm.websphere.management.*;

import javax.management.*;

public class aa {

    public static void main (String [] args) {

        try {
  // Connect to WebSphere Application Server.
  String host = "localhost";
  String port = "8880";
  String target = "WebSphere:cell=cellName,node=nodeName,server=server1";

  Properties config = new Properties();
  config.put (AdminClient.CONNECTOR_HOST,  host);
  config.put (AdminClient.CONNECTOR_PORT,  port);
  config.put (AdminClient.CONNECTOR_TYPE, AdminClient.CONNECTOR_TYPE_SOAP);
  System.out.println ("Config: " + config);
     AdminClient _soapClient = AdminClientFactory.createAdminClient(config);
  // Create the application management proxy, AppManagement.
  AppManagement proxy = AppManagementProxy. getJMXProxyForClient (_soapClient);

  String appName = "MyApp";
  String fileContents = "C:/test/test.ear";

  // Create the notification filter.
  NotificationFilterSupport myFilter = new NotificationFilterSupport();
  myFilter.enableType (NotificationConstants.TYPE_APPMANAGEMENT);
  //Add the listener.
  NotificationListener listener = new AListener(_soapClient, myFilter, 
"Install: " + appName, AppNotification.INSTALL);

// Refer to the installation example to see how one can prepare the EAR
// file by populating it with binding information.
// If code for the preparation phase has started, then you already have the options table.
// If not, create a new table and add the module-to-server relationship to it by uncommenting
// the next statement.
//Hashtable options = new Hashtable();
  options.put (AppConstants.APPDEPL_LOCALE, Locale.getDefault());
  options.put ((AppConstants.APPUPDATE_CONTENTTYPE, AppConstants.APPUPDATE_CONTENT_APP); 

// Uncomment the following statements to add the module to the server relationship table if 
//  the preparation phase does not collect it
//Hashtable module2server = new Hashtable();
//module2server.put ("*", target);
//options.put (AppConstants.APPDEPL_MODULE_TO_SERVER, module2server);
// Update the application.
  proxy.updateApplication (   appName,

// Wait for some timeout. The installation API is
//  asynchronous and so returns immediately.
// If the program does not wait here, the program ends.
  Thread.sleep(300000); // Wait so that the program does not end.

        catch (Exception e) {



// Specify the Java Management Extensions (JMX) notification listener for JMX events.
class AListener implements NotificationListener
    AdminClient _soapClient;
    NotificationFilterSupport  myFilter;
    Object handback;
    ObjectName on;
    String eventTypeToCheck;

    public AListener(AdminClient cl, NotificationFilterSupport fl, 
Object h, String eType) throws Exception
        _soapClient = cl;
        myFilter = fl;
        handback = h;
        eventTypeToCheck = eType;

        Iterator iter = _soapClient.queryNames (new ObjectName(
"WebSphere:type=AppManagement,*"), null).iterator();
        on = (ObjectName)iter.next();
        System.out.println ("ObjectName: " + on);
        _soapClient.addNotificationListener (on, this, myFilter, handback);

    public void handleNotification (Notification notf, Object handback)
            AppNotification ev = (AppNotification) notf.getUserData();
            System.out.println ("!! JMX event Recd: (handback obj= " + handback+ "): " + ev);

            //When the installation is done, remove the listener and quit

            if (ev.taskName.equals (eventTypeToCheck) &&
                (ev.taskStatus.equals (AppNotification.STATUS_COMPLETED) ||
                 ev.taskStatus.equals (AppNotification.STATUS_FAILED)))
                            _soapClient.removeNotificationListener (on, this);
            catch (Throwable th)
                        System.out.println ("Error removing listener: " + th);
                    System.exit (0);


Related Tasks

Installing an application through programming
Uninstalling an application through programming
Adding to, updating, or deleting part of an application through programming
Preparing a module and adding it to an existing application through programming
Preparing and updating a module through programming
Delete a module through programming
Adding a file through programming
Updating a file through programming
Delete a file through programming




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IBM is a trademark of the IBM Corporation in the United States, other countries, or both.