Hi mark,
I solved my JNDI federation problem and maybe you are interested to know how ?
<JustToRememberMyProblem>
I want to get JMS ressources from JNDI. They're stored in a FileSystem JNDI
and I need to federate it to Tomcat JNDI.
</JustToRememberMyProblem>
I added a custom factory to tomcat (in commons/classes):
import java.util.Enumeration;
import java.util.Hashtable;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.Name;
import javax.naming.NameClassPair;
import javax.naming.NamingEnumeration;
import javax.naming.NamingException;
import javax.naming.RefAddr;
import javax.naming.Reference;
import javax.naming.spi.ObjectFactory;
public class JndiFederationFactory implements ObjectFactory {
public Object getObjectInstance(
Object obj,
Name name,
Context nameCtx,
Hashtable environment)
throws NamingException {
Reference ref = (Reference) obj;
Enumeration addrs = ref.getAll();
String lookup = null;
Properties props = new Properties();
while (addrs.hasMoreElements()) {
RefAddr addr = (RefAddr) addrs.nextElement();
String type = addr.getType();
String value = (String) addr.getContent();
if (type.equals("lookup")) {
lookup = value;
} else {
props.put(type, value);
}
}
InitialContext ctx = new InitialContext(props);
if (lookup == null) {
throw new NamingException("la propri�t� lookup doit �tre d�finie");
}
return ctx.lookup(lookup);
}
}
I added IBM MQSeries/JMS client classes to commons/lib
I added this conf in server.xml :
<Resource name="jms/QueueConnexionFactory" auth="Container"
type="javax.jms.QueueConnexionFactory"/>
<ResourceParams name="jms/QueueConnexionFactory">
<parameter>
<name>factory</name>
<value>com.cgey.JndiFederationFactory</value>
</parameter>
<parameter>
<name>lookup</name>
<value>urlQmgrLocal</value>
</parameter>
<parameter>
<name>java.naming.factory.initial</name>
<value>com.sun.jndi.fscontext.RefFSContextFactory</value>
</parameter>
<parameter>
<name>java.naming.security.authentication</name>
<value>none</value>
</parameter>
<parameter>
<name>java.naming.provider.url</name>
<value>file:///c:/MQSeries/jndi</value>
</parameter>
</ResourceParams>
Using this, I can lookup in local JNDI from my webapp for "jms/QueueConnexionFactory"
and get the MQSeries
QueueConnexionFactory defined in a FileSystem JNDI Context. This is a pseudo JNDI
Federation, but it works fine.
Nico.
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