Package com.bea.wcp.diameter.accounting

Class ClientSession

java.lang.Object

com.bea.wcp.diameter.Session

com.bea.wcp.diameter.accounting.ClientSession

All Implemented Interfaces:

Externalizable, Serializable

Direct Known Subclasses:

RfSession

public class ClientSession
extends Session

Client accounting session implementing the client accounting state machine described in RFC 3588 section 8.2. This session can be used to create and send new ACR accounting requests, and receive corresponding ACA answer messages. The current session state is based on the accounting record type of the previously created request. For an EVENT ACR, the session will be terminated (removed from the Diameter session map) as soon as the corresponding EVENT ACA message is received. Likewise, after STOP ACR is sent, the session will be terminated as soon as the corresponding STOP ACA message is received.

Author:

Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ClientSession()	Used by Externalizable.
ClientSession(Application app)	Creates a new ClientSession for the specified application.
ClientSession(Application app, String id, Object parent)

Method Summary

Modifier and Type	Method	Description
ACR	createACR(RecordType type)	Creates a new accounting request (ACR) for the specified accounting record type.
protected void	rcvAnswer(Answer ans)	Receives accounting answer (ACA) messages for this session.
void	readExternal(ObjectInput is)
void	sndMessage(Message msg)	Called by the container just before a new ACR or ACA message has been sent out.
void	writeExternal(ObjectOutput out)

Methods inherited from class com.bea.wcp.diameter.Session

appendXml, createRequest, getAdapter, getApplication, getAttribute, getId, getListener, isTerminated, notifyListener, rcvMessage, rcvRequest, removeAttribute, setAdapter, setAttribute, setListener, terminate, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

ClientSession

public ClientSession()

Used by Externalizable.

ClientSession

public ClientSession(Application app)

Creates a new ClientSession for the specified application.

ClientSession

public ClientSession(Application app,
 String id,
 Object parent)

Method Details

createACR

public ACR createACR(RecordType type)

Creates a new accounting request (ACR) for the specified accounting record type. For a newly created ClientSession, the first ACR request must be either an EVENT request for event-based accounting, or a START request for session-based accounting. If an EVENT request, then this must be the only request created for the session, and the session will be terminated automatically upon receipt of the corresponding EVENT ACA message. If a START request, then this must be followed by zero or more INTERIM requests, and finally a terminating STOP request. Upon receiving the STOP ACA message, the session will be automatically terminated.

Parameters:

type - the accounting RecordType for the request

Returns:

the resulting ACR request for this session

Throws:

IllegalStateException - if the session is terminated, a request is currently pending, or the specified RequestType is not valid for the current session state

sndMessage

public void sndMessage(Message msg)
                throws IOException

Called by the container just before a new ACR or ACA message has been sent out. The current session state is updated accordingly.

Overrides:

sndMessage in class Session

Parameters:

msg - the ACR/ACA message being sent out

Throws:

IOException - if the message could not be sent

IllegalStateException - if the session has been terminated, a request is already pending, or a request is out of sequence (invalid record number)

rcvAnswer

protected void rcvAnswer(Answer ans)
                  throws DiameterException,
IOException

Receives accounting answer (ACA) messages for this session. The session state machine will be updated according to ACA record number and type. If ACA record type is EVENT or STOP then the session will be automatically terminated.

Overrides:

rcvAnswer in class Session

Parameters:

ans - the ACA message

Throws:

DiameterException - if a Diameter protocol error occurred

IOException - if an I/O error occurred while processing the message

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class Session

Throws:

IOException

readExternal

public void readExternal(ObjectInput is)
                  throws IOException,
ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class Session

Throws:

IOException

ClassNotFoundException