001/*
002 * Copyright 2002-2019 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.messaging.handler.annotation.reactive;
018
019import reactor.core.publisher.Mono;
020
021import org.springframework.core.MethodParameter;
022import org.springframework.messaging.Message;
023import org.springframework.messaging.handler.invocation.reactive.HandlerMethodArgumentResolver;
024
025/**
026 * No-op resolver for method arguments of type {@link kotlin.coroutines.Continuation}.
027 *
028 * @author Sebastien Deleuze
029 * @since 5.2
030 */
031public class ContinuationHandlerMethodArgumentResolver implements HandlerMethodArgumentResolver {
032
033        @Override
034        public boolean supportsParameter(MethodParameter parameter) {
035                return "kotlin.coroutines.Continuation".equals(parameter.getParameterType().getName());
036        }
037
038        @Override
039        public Mono<Object> resolveArgument(MethodParameter parameter, Message<?> message) {
040                return Mono.empty();
041        }
042}