0 Replies Latest reply on Oct 9, 2002 2:34 PM by scmikes

client JNDI config problem

scmikes Oct 9, 2002 2:34 PM

Hello,

I am starting to use JBOSS as a host for
GRID computing. I have a workflow that I need to
execute across several machines. I would like to
use JNDI to store run info during the workflow execution.

I was looking the the "for pay docs" in the JNDI section for Jboss3.0.3 (good docs, worth the $$). It had good coverage of JNDI setup. But it did not cover JNDI context cleanup.

Specificially, I want to create a scratch subcontext
for a run, then delete the subcontext at the end of the
run.

In a nutshell here is what I am doing in the example client code (code at end of post):
- Obtain root context (works)
- create "plm" subcontext (works)
- create the binding in "plm" subcontext (works)
(foo, bar)
(run, it)
(really, good)
- list contents of "plm" subcontext (works)
- drop the subContext (fails with operation not supported error)

Do I have to set some security parameters somewhere in the JBOSS JNDI config to allow clients to delete
a subContext??

Thanks,
Mike

Here is the info:

--------------- Client Error ---------------------
D:\scmikes\jndi\work1>ant run.client_1

[java] javax.naming.OperationNotSupportedException
[java] at org.jnp.interfaces.NamingContext.destroySubcontext(NamingContext.java:828)
[java] at javax.naming.InitialContext.destroySubcontext(InitialContext.java:403)
[java] at Client_1.main(Client_1.java:19)
[java] Foo: java.lang.String
[java] really: java.lang.String
[java] run: java.lang.String

------------ jndi.properties -------------------
java.naming.factory.initial=org.jboss.naming.HttpNamingContextFactory
java.naming.provider.url=http://localhost:8080/invoker/JMXInvokerServlet
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces

------------- Client Source Code -------------------

import javax.naming.InitialContext;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.NamingEnumeration;
import javax.naming.NameClassPair;

import javax.naming.directory.*;

public class Client_1
{
public static void main(String [] args)
{

try {

Context ctx = new InitialContext();

//--------------- Create new sub context ----------
Context newCtx = ctx.createSubcontext("plm");

//---------------- Create Mappings in plm
newCtx.bind("Foo", "Bar");
newCtx.bind("run", "it");
newCtx.bind("really", "good");

//--------- start over, listing context
NamingEnumeration list = ctx.list("plm");

while (list.hasMore()) {
NameClassPair nc = (NameClassPair)list.next();
System.out.println(nc);
}

//-------------------------- Delete new context
ctx.destroySubcontext("plm");

}
catch (javax.naming.NamingException ne)
{ne.printStackTrace();}
}

}

------------- Build.xml (from JBOSS workbook ) ----------
<?xml version="1.0"?>