org.zalando.riptide

Interface Selector<A>

Type Parameters:

A - generic response attribute type

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 Selector<A>

A Selector can be used change the dispatching strategy. Its purpose is to select an attribute of the response and find a binding for it.

Method Summary

Modifier and Type	Method and Description
Optional<A>	attributeOf(org.springframework.http.client.ClientHttpResponse response) Retrieves an attribute from the given response
default Optional<Binding<A>>	select(Optional<A> attribute, Map<Optional<A>,Binding<A>> bindings) Attempts to find a matching binding for the given attribute.

Method Detail

attributeOf

Optional<A> attributeOf(org.springframework.http.client.ClientHttpResponse response)
                 throws IOException

Retrieves an attribute from the given response

Parameters:

response - the incoming response

Returns:

an attribute based on the response which is then used to select the correct binding

Throws:

IOException - if accessing the response failed

select

default Optional<Binding<A>> select(Optional<A> attribute,
                                    Map<Optional<A>,Binding<A>> bindings)

Attempts to find a matching binding for the given attribute. Defaults to a direct map lookup.

Parameters:

attribute - the previously selected attribute

bindings - all bindings

Returns:

an optional binding match, if found