/*******************************************************************************
 * Copyright 2018 The MIT Internet Trust Consortium
 *
 * 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
 *
 *   http://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 cz.muni.ics.oauth2.model;

import com.nimbusds.jose.Algorithm;
import com.nimbusds.jose.Requirement;

/**
 * @author jricher
 */
public final class PKCEAlgorithm extends Algorithm {

	private static final long serialVersionUID = 7752852583210088925L;

	public static final PKCEAlgorithm plain = new PKCEAlgorithm("plain", Requirement.REQUIRED);
	public static final PKCEAlgorithm S256 = new PKCEAlgorithm("S256", Requirement.OPTIONAL);

	public PKCEAlgorithm(String name, Requirement req) {
		super(name, req);
	}

	public PKCEAlgorithm(String name) {
		super(name, null);
	}

	public static PKCEAlgorithm parse(final String s) {
		if (s.equals(plain.getName())) {
			return plain;
		} else if (s.equals(S256.getName())) {
			return S256;
		} else {
			return new PKCEAlgorithm(s);
		}
	}

}
