updates to interfaces from netflix

src/main/java/org/springframework/cloud/client/loadbalancer/LoadBalancerClient.java

@@ -2,6 +2,8 @@ package org.springframework.cloud.client.loadbalancer;
 
 import org.springframework.cloud.client.ServiceInstance;
 
+import java.net.URI;
+
 /**
  * @author Spencer Gibb
  */
@@ -14,10 +16,13 @@ public interface LoadBalancerClient {
     public ServiceInstance choose(String serviceId);
 
     /**
-     * Choose a ServiceInstance from the LoadBalancer for the specified service
+     * execute request using a ServiceInstance from the LoadBalancer for the specified service
      * @param serviceId the service id to look up the LoadBalancer
      * @param request allows implementations to execute pre and post actions such as incrementing metrics
      * @return the result of the LoadBalancerRequest callback on the selected ServiceInstance
      */
-    public <T> T choose(String serviceId, LoadBalancerRequest<T> request);
+    public <T> T execute(String serviceId, LoadBalancerRequest<T> request);
+
+    public URI reconstructURI(ServiceInstance instance, URI original);
+
 }

src/main/java/org/springframework/cloud/client/loadbalancer/LoadBalancerRequest.java

@@ -6,5 +6,5 @@ import org.springframework.cloud.client.ServiceInstance;
  * @author Spencer Gibb
  */
 public interface LoadBalancerRequest<T> {
-    public T apply(ServiceInstance instance);
+    public T apply(ServiceInstance instance) throws Exception;
 }