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Mobicents JAIN SLEE Diameter Rx Resource Adaptor User Guide


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If you find a typographical error in this manual, or if you have thought of a way to make this manual better, we would love to hear from you! Please submit a report in the the Issue Tracker, against the product Mobicents JAIN SLEE Diameter Rx Resource Adaptor, or contact the authors.

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Diameter Rx Resource Adaptor Type is defined by Mobicents team as part of effort to standardize RA Types.

Diameter Rx Type 1.0.0.BETA1 defines the following Activities:

net.java.slee.resource.diameter.rx.RxClientSessionActivity

This type of activity represents client side of Rx session. Abort-Session-Request (ASR) and Re-Auth-Request (RAR) messages are received in this Activity and respective Answers are sent from it. AA-Request (AAR) and Session-Termination-Request (STR) messages can be created and sent in this Activity, receiving the respective Answer (or timeout) later on this Activity.

This activity type can be created with call to the proper createRxClientSessionActivity method of net.java.slee.resource.diameter.rx.RxProvider. It ends once underlying Rx session ends.

State machine for client Authorization sessions can be found at Section 8.1 of Diameter Base Protocol RFC.

net.java.slee.resource.diameter.rx.RxServerSessionActivity

This type of activity represents server side of Rx session. AA-Request (AAR) and Session-Termination-Request (STR) messages are received in this Activity and respective Answers are sent from it. Abort-Session-Request (ASR) and Re-Auth-Request (RAR) messages can be created and sent in this Activity, receiving the respective Answer (or timeout) later on this Activity.

This activity type is implicitly created by the Resource Adaptor upon reception of the AA-Request message. It ends once underlying Rx session ends.

State machine for server Authorization sessions can be found at Section 8.1 of Diameter Base Protocol RFC.

All activities define methods required to properly function and expose necessary information to JAIN SLEE services. Rx Server Activity is defined as follows:



      public AAAnswer createAAAnswer();
      public void sendAAAnswer(AAAnswer aaa) throws IOException;
      public SessionTerminationAnswer createSessionTermAnswer();
      public void sendSessionTermAnswer(SessionTerminationAnswer sta) throws IOException;
      public void sendReAuthRequest(ReAuthRequest rar) throws IOException;
      public void sendAbortSessionRequest(AbortSessionRequest asr) throws IOException;  
    
public AAAnswer createAAAnswer();

This method creates a Rx-specific AA-Answer message pre-populated with the AVPs appropriate for this session taken from previously received session AA-Request.

public void sendAAAnswer(AAAnswer aaa) throws IOException;

This method sends a AA-Answer message to the peer.

public SessionTerminationAnswer createSessionTermAnswer();

This method creates a Rx-specific Session-Termination-Answer message pre-populated with the AVPs appropriate for this session taken from previously received session Session-Termination-Request.

public void sendSessionTermAnswer(SessionTerminationAnswer sta) throws IOException;

This method sends a Session-Termination-Answer message to the peer.

public void sendReAuthRequest(ReAuthRequest rar) throws IOException;

This method sends a Rx-specific Re-Auth-Request message to the peer.

public void sendAbortSessionRequest(AbortSessionRequest asr) throws IOException;

This method sends a Rx-specific Abort-Session-Request message to the peer.

Rx Client Activity is defined as follows:



      public AARequest createRxAARequest();
      public void sendRxAARequest(AARequest aar) throws IOException;
      public SessionTerminationRequest createSessionTermRequest();
      public void sendSessionTermRequest(SessionTerminationRequest str) throws IOException;
      public void sendReAuthAnswer(ReAuthAnswer raa) throws IOException;
      public void sendAbortSessionAnswer(AbortSessionAnswer asa) throws IOException;
    
public AARequest createRxAARequest();

Create a Rx-specific AA-Request message pre-populated with the AVPs appropriate for this session.

public void sendRxAARequest(AARequest aar) throws IOException;

Sends an AA-Request message to the peer.

public void sendReAuthAnswer(ReAuthAnswer raa) throws IOException;

Sends a Re-Auth-Answer message to the peer.

public void sendSessionTermRequest(SessionTerminationRequest str) throws IOException;

Sends a Rx-specific Session-Termination-Request message to the peer.

public void sendAbortSessionAnswer(AbortSessionAnswer asa) throws IOException;

Sends a Abort-Session-Answer message to the peer.

Note

It is safe to type cast all the mentioned Diameter Activities to it's super interface net.java.slee.resource.diameter.base.DiameterActivity defined in Diameter Base Activities section.

The Mobicents Diameter Rx Resource Adaptor SBB Interface provides SBBs with access to the Diameter objects required for creating and sending messages. It is defined as follows:



    package net.java.slee.resource.diameter.rx;
    import java.io.IOException;
    import net.java.slee.resource.diameter.Validator;
    import net.java.slee.resource.diameter.base.CreateActivityException;
    import net.java.slee.resource.diameter.base.events.avp.DiameterIdentity;
    import net.java.slee.resource.diameter.rx.events.AAAnswer;
    import net.java.slee.resource.diameter.rx.events.AARequest;
    import net.java.slee.resource.diameter.rx.events.AbortSessionAnswer;
    import net.java.slee.resource.diameter.rx.events.AbortSessionRequest;
    import net.java.slee.resource.diameter.rx.events.ReAuthAnswer;
    import net.java.slee.resource.diameter.rx.events.ReAuthRequest;
    public interface RxProvider {
        public RxMessageFactory getRxMessageFactory();
        public RxAvpFactory getRxAvpFactory();
        public RxClientSessionActivity getActivityBySessionID(String sessionID);
        public RxClientSessionActivity createRxClientSessionActivity() throws CreateActivityException;
        public RxClientSessionActivity createRxClientSessionActivity(DiameterIdentity destinationHost, 
            DiameterIdentity destinationRealm) throws CreateActivityException;
        public AAAnswer sendAARequest(AARequest aar) throws IOException;
        public AbortSessionAnswer sendAbortSessionRequest(AbortSessionRequest asr)
            throws IOException;
        public ReAuthAnswer sendReAuthRequest(ReAuthRequest rar) throws IOException;
        DiameterIdentity[] getConnectedPeers();
        int getPeerCount();
        Validator getValidator();
    }
    

public RxMessageFactory getRxMessageFactory();

This method returns a message factory to be used to create concrete implementations of Rx messages.

public RxAvpFactory getRxAvpFactory();

This method returns an avp factory to be used to create concrete implementations of Rx AVPs.

public RxClientSessionActivity getActivityBySessionID(String sessionID);

This method returns an exisitng Rx activity by it's Session-Id attribute and null if it doesn't exist.

public RxClientSessionActivity createRxClientSessionActivity() throws CreateActivityException;

This method creates a new activity to send and receive Diameter Rx messages.

public RxClientSessionActivity createRxClientSessionActivity(DiameterIdentity destinationHost, DiameterIdentity destinationRealm) throws CreateActivityException;

This method creates a new activity to send and receive Diameter Rx messages for the given host and/or realm.

public AAAnswer sendAARequest(AARequest aar) throws IOException;

This method sends an AA-Request message to the appropriate peers, and block until the response is received then return it.

public AbortSessionAnswer sendAbortSessionRequest(AbortSessionRequest asr) throws IOException;

This method sends an Abort-Session-Request message to the appropriate peers, and block until the response is received then return it.

public ReAuthAnswer sendReAuthRequest(ReAuthRequest rar) throws IOException;

This method sends an Re-Auth-Request message to the appropriate peers, and block until the response is received then return it.

public DiameterIdentity[] getConnectedPeers();

This method returns the identities of peers this Diameter resource adaptor is connected to.

public int getPeerCount();

This method returns the number of peers this Diameter resource adaptor is connected to.

public Validator getValidator();

This method returns the Diameter Message and AVP validator instance.

This RA uses the Mobicents Diameter Stack, an improvement over jDiameter Stack. The stack is the result of the work done by Mobicents Diameter and jDiameter development teams, and source code is provided in all releases.

There is a single Resource Adaptor Entity created when deploying the Resource Adaptor, named DiameterRx. The DiameterRx entity uses the default Resource Adaptor configuration, specified in Section 3.1, “Configuration”.

The DiameterRx entity is also bound to Resource Adaptor Link Name DiameterRx, to use it in an Sbb add the following XML to its descriptor:



    <resource-adaptor-type-binding>
      <resource-adaptor-type-ref>
        <resource-adaptor-type-name>Diameter Rx</resource-adaptor-type-name>
        <resource-adaptor-type-vendor>java.net</resource-adaptor-type-vendor>
        <resource-adaptor-type-version>0.8.1</resource-adaptor-type-version>
      </resource-adaptor-type-ref>

      <activity-context-interface-factory-name>
        slee/resources/JDiameterRxResourceAdaptor/java.net/0.8.1/acif
      </activity-context-interface-factory-name>

      <resource-adaptor-entity-binding>
        <resource-adaptor-object-name>
            slee/resources/diameter-rx-ra-interface
        </resource-adaptor-object-name>
        <resource-adaptor-entity-link>DiameterRx</resource-adaptor-entity-link>
      </resource-adaptor-entity-binding>
    </resource-adaptor-type-binding>
    
    

  1. Downloading the source code

    Use SVN to checkout a specific release source, the base URL is http://mobicents.googlecode.com/svn/tags/servers/jain-slee/2.x.y/resources/diameter-rx, then add the specific release version, lets consider 1.0.0.BETA1.

    [usr]$ svn co http://mobicents.googlecode.com/svn/tags/servers/jain-slee/2.x.y/resources/diameter-rx/1.0.0.BETA1 slee-ra-diameter-rx-1.0.0.BETA1
  2. Building the source code

    Important

    Maven 2.0.9 (or higher) is used to build the release. Instructions for using Maven2, including install, can be found at http://maven.apache.org

    Use Maven to build the deployable unit binary.

    				    [usr]$ cd slee-ra-diameter-rx-1.0.0.BETA1
    				    [usr]$ mvn install
    				    

    Once the process finishes you should have the deployable-unit jar file in the target directory, if Mobicents JAIN SLEE is installed and environment variable JBOSS_HOME is pointing to its underlying JBoss Application Server directory, then the deployable unit jar will also be deployed in the container.

Similar process as for Section 4.2.1, “Release Source Code Building”, the only change is the SVN source code URL, which is http://mobicents.googlecode.com/svn/trunk/servers/jain-slee/resources/diameter-rx.

Revision History
Revision 1.0Mon Sep 07 2011Alexandre Mendonça
Creation of the Mobicents JAIN SLEE Diameter Rx RA User Guide.