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 for interception-style, chained processing of Web requests that may 023 * be used to implement cross-cutting, application-agnostic requirements such 024 * as security, timeouts, and others. 025 * 026 * @author Rossen Stoyanchev 027 * @since 5.0 028 */ 029public interface WebFilter { 030 031 /** 032 * Process the Web request and (optionally) delegate to the next 033 * {@code WebFilter} through the given {@link WebFilterChain}. 034 * @param exchange the current server exchange 035 * @param chain provides a way to delegate to the next filter 036 * @return {@code Mono<Void>} to indicate when request processing is complete 037 */ 038 Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain); 039 040}