Configuring AMBA

The FRONT ARENA AMB Adapter (AMBA) is the FRONT ARENA subsystem that both creates and publishes event notifications and handles any external request messages posted on the AMB. It is highly configurable and must be set up in accordance with the bridge component of the adapter to make both event and request processing work.

Note:
For details on how to set the AMBA parameters, see the documentation for the FRONT ARENA application.

Event processing

For event processing, the following AMBA parameters, seen in Table 36, must be set up in a predefined way or their values must be compatible with the configuration parameters of the bridge.

Table 36. AMBA parameters for event processing

AMBA parameter Value Description
-sender_source The value of the AMBA parameter must be the prefix of all topics specified in the bridge parameter value, EventHandler/ Filter<n>/Topics and is a valid value for the bridge parameter EventHandler/ Filter<n>/Sources The sender source for outgoing messages. The prefix for all message topics looks as follows:
<sender source>/....
-sender_off 0 Disables or enables outgoing messages from AMBA.
-show_changes 0 Include difference information in generated messages.

Request processing

For request processing, the following AMBA parameters, seen in Table 37, must be set up in a predefined way or their values must be compatible with the configuration parameters of the bridge.

Table 37. AMBA parameters for request processing

AMBA parameter Value Description
-receiver_sources The value of the bridge parameter, RequestHandler/ FAPublicationSubject, must be one of the values of this AMBA parameter. Prefix of topics to listen to; messages are received if their topic looks as follows:
<receiver source>/....
(<receiver source> being one of possibly multiple values of this parameter).
-receiver_off 0 Disable or enable the receiving of messages.
-db_writes_off 0 Disable or enable the writing of incoming messages to the FRONT ARENA database.
-force_update 1(*) Update database records, even if all the values are unchanged.
-show_changes 0(*) Include difference information in the generated messages.
-sender_source The value of the bridge parameter, RequestHandler/ FAAMBASenderSource, must be identical with the value of this AMBA parameter (*). Sender source for outgoing messages; prefix for all message topics which look as follows:
<sender source>/....
-sender_off 0(*) Disable or enable outgoing messages from AMBA.

(*) Parameter values marked in this way are only relevant if synchronous request processing is to be supported.

Message format

The format of the messages accepted and published by the AMBA is highly configurable. The AMBA message configuration must match the message format created and understood by the external application. For example, the configuration must correspond to the business object definitions used by the Adapter for FRONT ARENA in a WebSphere Business Integration scenario.

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