JMS - Store-And-Forward

As the concept of message bridges is specially designed for communication with other JMS implementations, WebLogic Server offers us Store-And-Forward (SAF) to establish JMS communication between recent WLS versions.

Compared with JMS bridges, the practical implementation of SAF is a little bit different.

The SAF-architecture looks like this:

First, we configure the target domain.
This is quite straight forward.  Define a JMS server, a JMS module with a connection factory and a queue.

The source configuration is different.

• You need a JMS server as well.
• You'll need to create a "Store-And-Forward Agent" connected with a persistent store.
• A "Connection Factory" must be configured.
• The queue doesn't have to configured in the system module directly.
• A "SAF Remote Context" needs to be created; there we will define the t3 connection url.
• As last component, a "SAF Imported Destination" must be configured.  In that component, we'll make a queue that points to the target queue.

SAF Agent:

The components of the system module:

The SAF Remote Context:

The SAF Imported Destination:

The SAF Queue within the imported destination:

When the architecture is completely configured, we can now test our setup.

In a small web application, we send messages to the source queue:

And the output on our target queue looks like this:

[oracle@wls12c2 jms]$ java SAFQueueTargetReceive t3://wls12c2:8011

JMS Ready To Receive Messages (To quit, send a "quit" message).

Text Message Received: this is a test message 0

Text Message Received: this is a test message 1

Text Message Received: this is a test message 2

Text Message Received: this is a test message 3

Text Message Received: this is a test message 4

Text Message Received: this is a test message 5

Text Message Received: this is a test message 6

Text Message Received: this is a test message 7

Text Message Received: this is a test message 8

Text Message Received: this is a test message 9

Conclusion: our SAF configuration works like a charm!