Add ServiceInstance.getUri and implement in DefaultServiceInstance

fixes gh-12

src/main/java/org/springframework/cloud/client/DefaultServiceInstance.java

@@ -16,6 +16,8 @@
 
 package org.springframework.cloud.client;
 
+import java.net.URI;
+
 import lombok.Data;
 
 /**
@@ -32,4 +34,17 @@ public class DefaultServiceInstance implements ServiceInstance {
 
 	private final int port;
 
+	private final boolean secure;
+
+	@Override
+	public URI getUri() {
+		return getUri(this);
+	}
+
+	public static URI getUri(ServiceInstance instance) {
+		String scheme = (instance.isSecure()) ? "https" : "http";
+		String uri = String.format("%s://%s:%s", scheme, instance.getHost(),
+				instance.getPort());
+		return URI.create(uri);
+	}
 }

src/main/java/org/springframework/cloud/client/ServiceInstance.java

@@ -16,6 +16,8 @@
 
 package org.springframework.cloud.client;
 
+import java.net.URI;
+
 /**
  * @author Spencer Gibb
  */
@@ -26,4 +28,9 @@ public interface ServiceInstance {
 	public String getHost();
 
 	public int getPort();
+
+	public boolean isSecure();
+
+	public URI getUri();
+
 }

src/main/java/org/springframework/cloud/client/discovery/noop/NoopDiscoveryClientAutoConfiguration.java

@@ -72,7 +72,7 @@ public class NoopDiscoveryClientAutoConfiguration implements
 		}
 		int port = findPort();
 		this.serviceInstance = new DefaultServiceInstance(this.environment.getProperty(
-				"spring.application.name", "application"), host, port);
+				"spring.application.name", "application"), host, port, false);
 	}
 
 	private int findPort() {