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/*
 * Copyright (c) 2021 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.github.pustike.web.utils;

import java.util.Map;

/**
 * Enumeration of HTTP request methods.
 */
public enum HttpMethod {
    GET, HEAD, POST, PUT, PATCH, DELETE, OPTIONS, TRACE;

    private static final Map mappings = Map.of(GET.name(), GET, HEAD.name(), HEAD,
            POST.name(), POST, PUT.name(), PUT, PATCH.name(), PATCH, DELETE.name(), DELETE,
            OPTIONS.name(), OPTIONS, TRACE.name(), TRACE);

    /**
     * Resolve the given method value to an {@code HttpMethod}.
     * @param method the method value as a String
     * @return the corresponding {@code HttpMethod}, or {@code null} if not found
     */
    public static HttpMethod resolve(String method) {
        return method != null ? mappings.get(method) : null;
    }

    /**
     * Determine whether this {@code HttpMethod} matches the given
     * method value.
     * @param method the method value as a String
     * @return {@code true} if it matches, {@code false} otherwise
     */
    public boolean matches(String method) {
        return (this == resolve(method));
    }
}