Implements getServiceId

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/discovery/ZookeeperServiceDiscovery.java

@@ -102,6 +102,11 @@ public class ZookeeperServiceDiscovery implements ZookeeperRegistration, Applica
 		this.appName = resolver.getProperty("spring.application.name", "application");
 	}
 
+	@Override
+	public String getServiceId() {
+		return this.appName;
+	}
+
 	/**
 	 * Builds Service Instance - needs to be used when you want to register your application
 	 * in Zookeeper

spring-cloud-zookeeper-discovery/src/main/java/org/springframework/cloud/zookeeper/serviceregistry/ServiceInstanceRegistration.java

@@ -130,6 +130,14 @@ public class ServiceInstanceRegistration implements ZookeeperRegistration {
 		this.serviceInstance = this.builder.build();
 	}
 
+	@Override
+	public String getServiceId() {
+		if (this.serviceInstance == null) {
+			return null;
+		}
+		return this.serviceInstance.getName();
+	}
+
 	public int getPort() {
 		if (this.serviceInstance == null) {
 			return 0;