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package com.sun.appserv.ejb;

import java.rmi.RemoteException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;

import org.glassfish.persistence.ejb.entitybean.container.spi.ReadOnlyEJBLocalHome;
import org.glassfish.persistence.ejb.entitybean.container.spi.ReadOnlyEJBHome;

import org.glassfish.persistence.ejb.entitybean.container.ReadOnlyBeanNotifierImpl;

import java.util.logging.*;

import com.sun.logging.*;

/**
 * Class that is used to obtain ReadOnlyBeanNotifier
 *  and ReadOnlyBeanLocalNotifier.
 *
 * @author Mahesh Kannan
 */
public class ReadOnlyBeanHelper {
    protected static final Logger _logger =
        LogDomains.getLogger(ReadOnlyBeanHelper.class, LogDomains.EJB_LOGGER);

    public static ReadOnlyBeanNotifier getReadOnlyBeanNotifier(String ejbName) {
        try {
            Context ctx = new InitialContext();
            Object obj = ctx.lookup(ejbName);
            ReadOnlyEJBHome home = (ReadOnlyEJBHome) 
                    PortableRemoteObject.narrow(obj, ReadOnlyEJBHome.class);
            ReadOnlyBeanNotifier roNotifier = new ReadOnlyBeanNotifierImpl();
            roNotifier.setHome(home);
            return roNotifier;
        } catch (Exception ex) {
            if(_logger.isLoggable(Level.SEVERE)) {
                _logger.log(Level.SEVERE, "entitybean.container.remote_exception", ex);
            }
        }
        return null;
    }

    public static ReadOnlyBeanLocalNotifier getReadOnlyBeanLocalNotifier(
            String ejbName)
    {
        try {
            Context ctx = new InitialContext();
            ReadOnlyEJBLocalHome home = 
                (ReadOnlyEJBLocalHome) ctx.lookup(ejbName);
            return home.getReadOnlyBeanLocalNotifier();
        } catch (Exception ex) {
            if(_logger.isLoggable(Level.SEVERE)) {
                _logger.log(Level.SEVERE, "entitybean.container.remote_exception",ex);
            }
        }
        return null;
    }

}