How to send JMS Message from a BPM Process

Question

Hi All
I have small query regarding sending JMS Message from a bpm process. Is it possible to send JMS message from one bpm process to another bpm process.
I have a scenario in which I need to send a JMS message to a queue where another process is listening on that queue and as soon as the message is received on the queue the process instance is created.
I know how to listen for the JMS message on the queue, but I don't how to send a JMS message from a process.
Also Can I create process by sending the Notification to the process instead of a JMS message. But the process to be created is not a subprocess i.e. Can notification be send accross different processes.
Any information or example in this regard would be helpful.
Thanks in advance
Edited by: user9945154 on Apr 22, 2009 7:46 PM

Answer 1

Hi,
Here's one approach to sending JMS messages from an Oracle BPM process. If you're doing this just to send a message into another process, do not take this approach. It's far easier and quicker if you do this using the OOTB "send notification" logic.
These steps describe how to do this using WebLogic. The steps would be different if you're using another ap server / JMS provider.
1. Guessing you've already done this, but first expose the two required WebLogic jar files for JMS messaging as Java components in the External Resources. The two files for WebLogic are weblogic.jar and wljmsclient.jar” (located in the < WebLogic home directory > /weblogic/server/lib” directory).
AquaLogic BPM JMS Queue Listener for WebLogic 8.1
2. You've probably already done this, but add an External Resource to represent the J2EE container:
• Name: “weblogicJ2EE” - this is important and will be used in the next step
• Supported Type: “GENERIC_J2EE”
• Initial Context Factory: “weblogic.jndi.WLInitialContextFactory”
• URL: “t3://localhost:7001”
• Principal: and Credentials: whatever userid and password you defined to access theWebLogic administrative console.
3. Create the External Resource that represents the send queue configuration. In this example, I'm calling it “WebLogic Send Queue”. This is important - remember what you named it because you will use this name in the logic that sends the JMS message. This new External Resource is configured as:
• J2EE: “weblogicJ2EE” (same name as the second External Resource you created)
• Destination Type: “QUEUE”
• Lookup Name: “weblogic.examples.jms.exampleQueue”
• Connection Factory Lookup Name: “weblogic.examples.jms.QueueConnectionFactory”
4. Here's the logic to send a Message to the Queue
<pre class="jive-pre"><p />msg as String = "Hello World"
jmsMsg as Fuego.Msg.JmsMessage
msg = "<?xml version=\"1.0\"?><Msg>" + msg + "</Msg></xml>"
jmsMsg = JmsMessage(type : JmsMessageType.TEXT)
jmsMsg.textValue = msg
sendMessage DynamicJMS
using configuration = "WebLogic Send Queue",
message = jmsMsg</pre>
Note that the “sendMessage” method uses the configuration parameter “WebLogic Send Queue”. You previously created a JMS messaging service External Resource with this name in the third step.
Again, please don't go this route if you're just using it to send notifications between processes,
Dan