--- /dev/null
+/**
+* Copyright (C) 2016 ZTE, Inc. and others. All rights reserved. (ZTE)
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package org.openo.msb.wrapper.consul.option;
+
+import com.google.common.base.Optional;
+
+import javax.ws.rs.client.WebTarget;
+
+public class Options {
+ private Options(){};
+
+ static <T> WebTarget optionallyAdd(WebTarget input, String key, Optional<T> val) {
+ return val.isPresent() ? input.queryParam(key, val.get()) : input;
+ }
+}