Oracle Server E10293-02 User Manual

Diameter Application Example

Oracle Communication and Mobility Server Developer’s Guide

The network element (acting as client) sends an Accounting-Request (ACR) with 
Accounting-Record-Type AVP set to EVENT_RECORD to indicate service specific 
information to the CDF (acting as server).

The server processes the received Accounting-Request and returns an 
Accounting-Answer (ACA) message with Accounting-Record-Type AVP set to 
EVENT_RECORD to the client.

The following section describes all the steps that must be performed to create a Rf 
client/server Diameter Application. The steps where the side (client or server) is not 
specified are common to both sides.

Several steps are required to initialize the Diameter stack before messages can be 
exchanged. These steps are the following ones:

■

Create a DiameterStack instance

■

Register the Rf Diameter application to the created Diameter stack

■

Create listening points to bind to local transport addresses (optional / server side)

■

Configure routes and connect to Diameter peers (optional / client side)

An instance of the Diameter stack can be created as follows:

Get an instance of the DiameterFactory class myFactory using the following 
method: DiameterFactory.getInstance().

Create myStack, an instance of the DiameterStack class, using the following 
method: myFactory.createDiameterStack().

Once the Diameter stack is defined, the current accounting 

application objects may be instantiated. An Accounting Diameter application is 
represented by instances of the two following interfaces: DiameterRfProvider and 
DiameterRfListener. The former represents the Accounting Diameter application for 
use by the higher-level user code; the latter represents the Accounting Diameter 
application for use by the Diameter stack. The DiameterRfProvider interface is used by 
the higher-level user code to send accounting messages (Accounting Request(ACR) 
and accounting Answer(ACA)) and control the application behavior. All the call back 
methods defined in the DiameterRfListener interface are used by the Diameter stack to 
deliver these accounting messages and some events to the user code.

The Rf provider is created as follows: