001/* 002 * Copyright 2002-2016 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.cors; 018 019import javax.servlet.http.HttpServletRequest; 020 021/** 022 * Interface to be implemented by classes (usually HTTP request handlers) that 023 * provides a {@link CorsConfiguration} instance based on the provided request. 024 * 025 * @author Sebastien Deleuze 026 * @since 4.2 027 */ 028public interface CorsConfigurationSource { 029 030 /** 031 * Return a {@link CorsConfiguration} based on the incoming request. 032 * @return the associated {@link CorsConfiguration}, or {@code null} if none 033 */ 034 CorsConfiguration getCorsConfiguration(HttpServletRequest request); 035 036}