| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.servicecomb.foundation.common.utils; |
| |
| import java.lang.reflect.ParameterizedType; |
| import java.lang.reflect.Type; |
| |
| public final class GenericsUtils { |
| /** |
| * check if XXX.class is generic type. see TestGenericsUtils for details meaning. |
| * This method is provided for API compatibility for RestTemplate. Following code: |
| * |
| * <code> |
| * List<GenericObjectParam<List<RecursiveObjectParam>>> response = consumers.getSCBRestTemplate() |
| * postForObject("/testListObjectParam", request, List.class); |
| * </code> |
| * |
| * should work for versions of 1.*. This is because java-chassis can read type info from swaggers. |
| * |
| * Start from 2.x, the best practise to write this code is to use ParameterizedTypeReference provided by RestTemplate |
| * exchange method. |
| */ |
| public static boolean isGenericResponseType(Type type) { |
| if (type instanceof ParameterizedType) { |
| return false; |
| } |
| if (type instanceof Class<?>) { |
| return ((Class<?>) type).getTypeParameters().length > 0; |
| } |
| return true; |
| } |
| } |