FileDocCategorySizeDatePackage
MBeanLocatorImpl.javaAPI DocGlassfish v2 API4809Fri May 04 22:33:34 BST 2007com.sun.enterprise.admin.event

MBeanLocatorImpl

public class MBeanLocatorImpl extends Object implements MBeanLocator
Implementation of mbeanLocator by using QueryNames
author
Satish Viswanatham

(Omit source code)

Fields Summary
static Logger
logger
static final String
UNSUPPORTED_TYPE
static final String
MALFORMED_OBJECT_KEY
Constructors Summary
Methods Summary
public java.lang.Objectlocate(java.lang.Object objectKey)
This method returns the mbean of interest for the event/notification

param
Object object key -- it could EventKey, ObjectName or String
return
Object proxy for the mbean that is of interest


                                         
        
                 
        ObjectName on = null;
        QueryExp e = null;

        if ( objectKey instanceof EventKey ) {
            EventKey eKey = (EventKey) objectKey;
            on = eKey.getObjectName();
            e = eKey.getQuery();
        } else if ( objectKey instanceof ObjectName) {
            on = (ObjectName) objectKey;
        } else if ( objectKey instanceof String ) {
            try {
                on = new ObjectName( (String) objectKey);
            } catch ( Exception exp ) {
               logger.log(Level.WARNING, MALFORMED_OBJECT_KEY, objectKey);
               return null;
            }
        } else {
            if ( objectKey != null ) 
                logger.log(Level.WARNING, UNSUPPORTED_TYPE, objectKey.getClass().getName());
            return null;
        }

        return MBeanServerFactory.getMBeanServer().queryMBeans(on, e);
public static voidmain(java.lang.String[] args)


        /* fix this later so that
         *  local can take MBeanServerproxy can be tested that way
         */
        if ( args.length < 1 ) 
        {
            System.out.println("Usage:  <object name> ");
            System.exit(3);
        }

        String name = args[0];
        System.out.println("name is " + args[0]);
        MBeanLocatorImpl m = new MBeanLocatorImpl();
        Set s = null;
        try {
           s = (Set)m.locate(new ObjectName(name));
        } catch (MalformedObjectNameException e ) {
            System.out.println("Please enter a valid object name ");
            System.exit(1);
        } catch ( NullPointerException  e) {
            System.out.println("Please enter a non null object name ");
            System.exit(2);
        }
        System.out.println(" The number of beans matched that description " + s.size());