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.http;
018
019import java.util.HashMap;
020import java.util.Map;
021
022/**
023 * Java 5 enumeration of HTTP request methods. Intended for use
024 * with {@link org.springframework.http.client.ClientHttpRequest}
025 * and {@link org.springframework.web.client.RestTemplate}.
026 *
027 * @author Arjen Poutsma
028 * @author Juergen Hoeller
029 * @since 3.0
030 */
031public enum HttpMethod {
032
033        GET, HEAD, POST, PUT, PATCH, DELETE, OPTIONS, TRACE;
034
035
036        private static final Map<String, HttpMethod> mappings = new HashMap<String, HttpMethod>(16);
037
038        static {
039                for (HttpMethod httpMethod : values()) {
040                        mappings.put(httpMethod.name(), httpMethod);
041                }
042        }
043
044
045        /**
046         * Resolve the given method value to an {@code HttpMethod}.
047         * @param method the method value as a String
048         * @return the corresponding {@code HttpMethod}, or {@code null} if not found
049         * @since 4.2.4
050         */
051        public static HttpMethod resolve(String method) {
052                return (method != null ? mappings.get(method) : null);
053        }
054
055
056        /**
057         * Determine whether this {@code HttpMethod} matches the given
058         * method value.
059         * @param method the method value as a String
060         * @return {@code true} if it matches, {@code false} otherwise
061         * @since 4.2.4
062         */
063        public boolean matches(String method) {
064                return (this == resolve(method));
065        }
066
067}