001/* 002 * Copyright 2002-2018 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.invocation.reactive; 018 019import java.util.ArrayList; 020import java.util.Arrays; 021import java.util.List; 022 023import org.springframework.util.Assert; 024 025/** 026 * Assist with configuration for handler method argument resolvers. 027 * At present, it supports only providing a list of custom resolvers. 028 * 029 * @author Rossen Stoyanchev 030 * @since 5.2 031 */ 032public class ArgumentResolverConfigurer { 033 034 private final List<HandlerMethodArgumentResolver> customResolvers = new ArrayList<>(8); 035 036 037 /** 038 * Configure resolvers for custom handler method arguments. 039 * @param resolver the resolvers to add 040 */ 041 public void addCustomResolver(HandlerMethodArgumentResolver... resolver) { 042 Assert.notNull(resolver, "'resolvers' must not be null"); 043 this.customResolvers.addAll(Arrays.asList(resolver)); 044 } 045 046 047 public List<HandlerMethodArgumentResolver> getCustomResolvers() { 048 return this.customResolvers; 049 } 050 051}