001/*
002 * Copyright 2002-2015 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.web.server;
018
019import reactor.core.publisher.Mono;
020
021/**
022 * Contract to allow a {@link WebFilter} to delegate to the next in the chain.
023 *
024 * @author Rossen Stoyanchev
025 * @since 5.0
026 */
027public interface WebFilterChain {
028
029        /**
030         * Delegate to the next {@code WebFilter} in the chain.
031         * @param exchange the current server exchange
032         * @return {@code Mono<Void>} to indicate when request handling is complete
033         */
034        Mono<Void> filter(ServerWebExchange exchange);
035
036}