RE: [Jython-dev] RE: EJB access from Jython

[Garcia, M. <mg...@Bu...>]

Hey Thomas, 
Here is what works for me.  Its a small client to an EJB:
Code follows:
===========================================
import java
from java.lang import Object,StringBuffer,String
from javax.naming import *
from java.util import *
from javax.rmi import *
from java.io import *
from com.oppen.pb.ejb.Mailer import *


class Client:

        def __init__(self):
            self.doNothing = 0
            self.p = Properties()
	    self.jndiContext = InitialContext()
	    self.ref = Object()
            
        def getInitialContext(self):
            self.p.put(Context.INITIAL_CONTEXT_FACTORY,
"weblogic.jndi.TengahInitialContextFactory")
            self.p.put(Context.PROVIDER_URL, "t3://localhost:7001")
            return InitialContext(self.p)

        def getRemote(self,jndiContext):
            self.jndiContext = self.getInitialContext()
#	    self.ref = jndiContext.lookup("CompositionControllerHome")
#	    home =
PortableRemoteObject.narrow(self.ref,CompositionControllerHome.class)
            #Create a remote reference to the stateless bean
            home = jndiContext.lookup("MailerHome")
            mailer = home.create()
	    print 'CONNECTION SUCCESS!!'
	    return mailer

if __name__ == '__main__':
    print 'in the body of app'
    a = Client()
    print 'object creation'
    ctx = a.getInitialContext()
    rem = a.getRemote(ctx)
    print rem.testReturn()
    to = [".com",".com"]
    frm = ".com"
    cc = [".com"]
    bcc = [".com"]
    subject = "Not a whole lot!"
    message = "Test message from mailer EJB."

 
rem.sendMessage(to,frm,cc,bcc,subject,message)==============================
============= 

Hope this helps.  The jist is that in main I instantiate a new Client, then
call getInitialContext which returns an InitialContext.  Then I call
getRemote passing it the InitialContext from the previous call.  getRemote
gives me the remote reference I need to then call a test method
rem.testReturn().  The last thing I do (this is an java mail bean by the
way) is set up some variables and pass it to rem.sendMessage() which sends
an email.

have fun.
Mick


-----Original Message-----
From: Thomas Bang Biilmann
To: Jython Dev (E-mail)
Sent: 4/4/01 7:54 AM
Subject: [Jython-dev] RE: EJB access from Jython

In addition to the question posted previously, I can now add the
following:

I've tried something like this:

...
from vm import SimpleBean
from vm import SimpleBeanHome
from javax.naming import Context
from javax.naming import InitialContext
from javax.rmi import PortableRemoteObject
initCtx = InitialContext()
sbHomeRef = initCtx.lookup('ejb/SimpleBean')
...

from within my Jython script. Until this point,  everything works fine.
This
is very similar to the "standard" way of looking up an EJB from a J2EE
program. However, when you in Java at this point would write:

sbHome = (SimpleBeanHome)
PortableRemoteObject.narrow(sbHomeRef, 
SimpleBeanHome.class);
sb = sbHome.create();

next, in Jython I'm not sure how to go about this? How can I get the
remote
interface created? 

Cheers,
Thomas


>  -----Original Message-----
> From: 	Thomas Bang Biilmann  
> Sent:	3. april 2001 16:50
> To:	Jython Dev (E-mail)
> Subject:	EJB access from Jython
> 
> Hi.
> 
> I'm currently experimenting with Jython scripting inside an 
> EJB deployed to Borland AppServer 4.5. The EJB (a stateful 
> session bean) is up and running, e.g. I can issue a simple 
> Jython script from the client and get the script executed on 
> the server. Now, I need to get access to other EJBs from the 
> bean implementing Jython scripting. I know that in the case 
> of beans (not EJBs, but JavaBeans), this is done via 
> registerBean/lookupBean or declareBean, but when it comes to 
> "looking up" an EJB, I'm lacking knowledge. How can this be done? 
> 
> /Thomas

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