org.springframework.cloud.client.loadbalancer

Interface ServiceInstanceChooser

All Known Subinterfaces:

LoadBalancerClient

public interface ServiceInstanceChooser

Implemented by classes which use a load balancer to choose a server to send a request to.

Author:

Ryan Baxter, Olga Maciaszek-Sharma

Method Summary

Modifier and Type	Method and Description
ServiceInstance	choose(String serviceId) Chooses a ServiceInstance from the LoadBalancer for the specified service.
<T> ServiceInstance	choose(String serviceId, Request<T> request) Chooses a ServiceInstance from the LoadBalancer for the specified service and LoadBalancer request.

Method Detail

choose

ServiceInstance choose(String serviceId)

Chooses a ServiceInstance from the LoadBalancer for the specified service.

Parameters:

serviceId - The service ID to look up the LoadBalancer.

Returns:

A ServiceInstance that matches the serviceId.

choose

<T> ServiceInstance choose(String serviceId,
                           Request<T> request)

Chooses a ServiceInstance from the LoadBalancer for the specified service and LoadBalancer request.

Type Parameters:

T - The type of the request context.

Parameters:

serviceId - The service ID to look up the LoadBalancer.

request - The request to pass on to the LoadBalancer

Returns:

A ServiceInstance that matches the serviceId.