public class ProtocolRouterextends Object
implements Router
The ProtocolRouter is used when there are multiple
services that can be used. Each service is selected based on the
protocol sent in the initiating request. If a match cannot be
made based on the request then a default service us chosen.
Constructor for the ProtocolRouter object. This is
used to create a router using a selection of services that can
be selected using the Sec-WebSocket-Protocol header
sent in the initiating request by the client.
Parameters:
registry - this is the registry of available services
This is used to route an incoming request to a service if
the request represents a WebSocket handshake as defined by
RFC 6455. If the request is not a session initiating handshake
then this will return a null value to allow it to be processed
by some other part of the server.