On Wed, Jan 27, 2010 at 1:10 PM, jose vilmar estacio de souza
<vil...@informal.com.br> wrote:
> Hi all,
> If I understand correctly, the class BlacklistFilter block addresses that
> are present in a table and reject address that are not present.
> What I need is a filter that does just the opposite. Accept thee addresses
> present in the table and reject the addresses not present.
> Is there anything available?
> Thanks.
Its simple, just check for the opposite condition in the current
blacklist filter.
Please note that current filter uses a List for this, you can optimize
it to use a ConcurrentHashMap for faster lookup's
Something like
private boolean isBlocked(IoSession session) {
SocketAddress remoteAddress = session.getRemoteAddress();
if (remoteAddress instanceof InetSocketAddress) {
InetAddress address = ((InetSocketAddress)
remoteAddress).getAddress();
// check all subnets
for(Subnet subnet : blacklist) {
if(!subnet.inSubnet(address)) {
return true;
}
}
}
return false;
}
This is just over the head, please check other conditions carefully :-)
> []S José Vilmar Estácio de Souza
> http://www.informal.com.br
> Msn:vil...@informal.com.br Skype:jvilmar
> Twitter: http://www.twitter.com/jvesouza
> Phone: +55 21-2555-2650 Cel: +55 21-8868-0859
>
>
--
thanks
ashish
Blog: http://www.ashishpaliwal.com/blog
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