org.openqa.selenium.remote.http

Interface Filter

All Superinterfaces:

java.util.function.Function<HttpHandler,HttpHandler>

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Filter
extends java.util.function.Function<HttpHandler,HttpHandler>

Can be wrapped around an HttpHandler in order to either modify incoming HttpRequests or outgoing HttpResponses using the well-known "Filter" pattern. This is very similar to the Servlet spec's javax.servlet.Filter, but takes advantage of lambdas:

 Filter filter = next -> {
   return req -> {
     req.addHeader("cheese", "brie");
     HttpResponse res = next.apply(req);
     res.addHeader("vegetable", "peas");
     return res;
   };
 }
 

Because each filter returns an HttpHandler, it's easy to do processing before, or after each request, as well as short-circuit things if necessary.

Method Summary

Modifier and Type	Method and Description
default HttpHandler	andFinally(HttpHandler end)
default Filter	andThen(Filter next)

Methods inherited from interface java.util.function.Function

andThen, apply, compose, identity

Method Detail

andThen

default Filter andThen(Filter next)

andFinally

default HttpHandler andFinally(HttpHandler end)