gov.nist.core.net
Interface AddressResolver

All Known Implementing Classes:

DefaultAddressResolver

public interface AddressResolver

An interface that allows you to customize address lookup. This is a NIST-SIP only feature. We dont support DNS SRV lookup directly in NIST-SIP but we provide a means by which the user can enable it. The user can implement this interface to do DNS lookups or other lookup schemes and register it with the stack. The default implementation of the address resolver does nothing more than just return back the Hop that it was passed (fixing up the port if necessary). However, this behavior can be overriden. To override implement this interface and register it with the stack using SIPTransactionStack.setAddressResolver(AddressResolver).

Author:

M. Ranganathan

Method Summary

Hop	resolveAddress(Hop hop) Do a name lookup and resolve the given IP address.

Method Detail

resolveAddress

public Hop resolveAddress(Hop hop)

Do a name lookup and resolve the given IP address. The default implementation is just an identity mapping (returns the argument).

Parameters:

hop - - an incoming Hop containing a potenitally unresolved address.

Returns:

a new hop ( if the address is recomputed ) or the original hop if this is just an identity mapping ( the default behavior ).