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.accept; 018 019import java.util.List; 020 021import org.springframework.http.MediaType; 022 023/** 024 * Strategy to resolve {@link MediaType} to a list of file extensions. 025 * For example resolve "application/json" to "json". 026 * 027 * @author Rossen Stoyanchev 028 * @since 3.2 029 */ 030public interface MediaTypeFileExtensionResolver { 031 032 /** 033 * Resolve the given media type to a list of path extensions. 034 * @param mediaType the media type to resolve 035 * @return a list of extensions or an empty list (never {@code null}) 036 */ 037 List<String> resolveFileExtensions(MediaType mediaType); 038 039 /** 040 * Return all registered file extensions. 041 * @return a list of extensions or an empty list (never {@code null}) 042 */ 043 List<String> getAllFileExtensions(); 044 045}