gov.nist.javax.sip.stack
Interface SIPMessageValve

All Known Implementing Classes:

CongestionControlMessageValve

public interface SIPMessageValve

This interface has callbacks that are notified for every SIP message arriving at the container. The callbacks occurs before any significant long-lived resources are allocated for this call, thus it gives a chance to the application to pre-process the message and filter based on some application-specific algorithm. Creating and sending a stateless response is also allowed. It is useful for congestion control or header re-writing.

Author:

Vladimir Ralev

Method Summary

void	destroy() This method is called when the valve is about to be destroyed.
void	init(SipStack stack) This method is called when the valve is initialized.
boolean	processRequest(SIPRequest request, MessageChannel messageChannel) The callback method that is called for every request before any transaction/dialog mapping or allocation occur.
boolean	processResponse(Response response, MessageChannel messageChannel) The callback method that is called for every response before any transaction/dialog mapping or allocation occur.

Method Detail

processRequest

boolean processRequest(SIPRequest request,
                       MessageChannel messageChannel)

The callback method that is called for every request before any transaction/dialog mapping or allocation occur.

Parameters:

request -

messageChannel -

Returns:

processResponse

boolean processResponse(Response response,
                        MessageChannel messageChannel)

The callback method that is called for every response before any transaction/dialog mapping or allocation occur.

Parameters:

response -

messageChannel -

Returns:

init

void init(SipStack stack)

This method is called when the valve is initialized. You can perform any initialization here.

Parameters:

stack -

destroy

void destroy()

This method is called when the valve is about to be destroyed. You can perform any cleanup here.