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From ttmdev <joe.fernan...@ttmsolutions.com>
Subject Re: sending message from an external client
Date Tue, 29 Apr 2008 12:44:02 GMT

Yup, referencing ActiveMQ objects from your code nails your application to
ActiveMQ and makes it non-portable. It defeats the purpose of using the JMS.
If you're running an external (standalone) client, Spring would be a good
way to go, but if you want to still use the JNDI, then simply create a
jndi.properties file and put it in your CLASSPATH. You can then get the
initial context and a particular factory as follows. 

Context ctx = new InitialContext();            
ConnectionFactory factory = (javax.jms.ConnectionFactory) 
            ctx.lookup("localConnectionFactory");       

You could also reference some other unique *.properties files and load  that
one as follows

Properties props = new Properties();
ClassLoader myLoader = this.getClass().getClassLoader();
props.load(myLoader.getResourceAsStream("amq.properties"));
javax.naming.Context ctx = new InitialContext(props);     

See the attached sample jndi.properties file

http://www.nabble.com/file/p16959605/jndi.properties jndi.properties 

Hope this helps.

Joe
Goto www.ttmsolutions.com for a free ActiveMQ user guide



DA wrote:
> 
> i have created ActiveMQConnectionFactory  and it is working .But i want
> the code to be generic so that even if i change messaging from activemq to
> some other thing my code should work fine with out any changes.
> 
> 
> James.Strachan wrote:
>> 
>> From an external client its often easier to just create an
>> ActiveMQConnectionFactory rather than use JNDI. Or use Spring
>> 
>> 2008/4/29 DA <dileepa@pramati.com>:
>>>
>>>  Hi all,
>>>  My application runs on jboss and i configured activewq for
>>>  messsaging.everything is working fine messaging r flowing fine.Now i
>>> want to
>>>  send message to this queue from an external client a main program.
>>>  i created the initialcontext with the properties from jboss
>>>
>>>  java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
>>>  java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
>>>
>>>  now when i did a lookup for connectionfatory it is returning me null.
>>> On
>>>  debugging it i found that it actually found the connectionfactory but
>>> in
>>>  NamingManager.getObjectInstance at
>>>
>>>  factory = getObjectFactoryFromReference(ref, f);
>>>                 if (factory != null) {
>>>                     return factory.getObjectInstance(ref, name, nameCtx,
>>>                                                      environment);
>>>                 }
>>>
>>>  it is returning null. Before going there, ref is holding the
>>>  connectionfactory instance.
>>>
>>>  i observed that factory is
>>> "org.jboss.util.naming.NonSerializableFactory"
>>>
>>>  in that factory.getObjectInstance it is looking for 
>>> connectionfactoryName
>>>  in a map and simply returning null from there.
>>>
>>>  can any one tell me what is happening there and what is wrong in my
>>> code.
>>>
>>>  Thanks in advance.
>>>   DA
>>>  --
>>>  View this message in context:
>>> http://www.nabble.com/sending-message-from-an-external-client-tp16956671s2354p16956671.html
>>>  Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>>
>>>
>> 
>> 
>> 
>> -- 
>> James
>> -------
>> http://macstrac.blogspot.com/
>> 
>> Open Source Integration
>> http://open.iona.com
>> 
>> 
> 
> 

-- 
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