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.web.server.handler; 018 019import java.util.List; 020 021import reactor.core.publisher.Mono; 022 023import org.springframework.web.server.ServerWebExchange; 024import org.springframework.web.server.WebFilter; 025import org.springframework.web.server.WebHandler; 026 027/** 028 * {@link WebHandlerDecorator} that invokes a chain of {@link WebFilter WebFilters} 029 * before invoking the delegate {@link WebHandler}. 030 * 031 * @author Rossen Stoyanchev 032 * @since 5.0 033 */ 034public class FilteringWebHandler extends WebHandlerDecorator { 035 036 private final DefaultWebFilterChain chain; 037 038 039 /** 040 * Constructor. 041 * @param filters the chain of filters 042 */ 043 public FilteringWebHandler(WebHandler handler, List<WebFilter> filters) { 044 super(handler); 045 this.chain = new DefaultWebFilterChain(handler, filters); 046 } 047 048 049 /** 050 * Return a read-only list of the configured filters. 051 */ 052 public List<WebFilter> getFilters() { 053 return this.chain.getFilters(); 054 } 055 056 057 @Override 058 public Mono<Void> handle(ServerWebExchange exchange) { 059 return this.chain.filter(exchange); 060 } 061 062}