JwtAlgorithm.java

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package dev.rafex.ether.jwt;
 
import java.util.Arrays;
 
/*-
 * #%L
 * ether-jwt
 * %%
 * Copyright (C) 2025 - 2026 Raúl Eduardo González Argote
 * %%
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * #L%
 */
 
/** Supported JWT signature algorithms. */
public enum JwtAlgorithm {
    HS256("HS256"), RS256("RS256");
 
    private final String headerValue;
 
    JwtAlgorithm(final String headerValue) {
        this.headerValue = headerValue;
    }
 
    public String headerValue() {
        return headerValue;
    }
 
    public static JwtAlgorithm fromHeaderValue(final String value) {
        return Arrays.stream(values())
                .filter(a -> a.headerValue.equals(value))
                .findFirst()
                .orElse(null);
    }
}