1 /*
2 * The contents of this file are subject to the terms of the Common Development and
3 * Distribution License (the License). You may not use this file except in compliance with the
4 * License.
5 *
6 * You can obtain a copy of the License at legal/CDDLv1.0.txt. See the License for the
7 * specific language governing permission and limitations under the License.
8 *
9 * When distributing Covered Software, include this CDDL Header Notice in each file and include
10 * the License file at legal/CDDLv1.0.txt. If applicable, add the following below the CDDL
11 * Header, with the fields enclosed by brackets [] replaced by your own identifying
12 * information: "Portions copyright [year] [name of copyright owner]".
13 *
14 * Copyright 2013-2015 ForgeRock AS.
15 */
16
17 package org.forgerock.json.jose.jws;
18
19 import java.util.Map;
20
21 /**
22 * An implementation for the JWS Header parameters.
23 *
24 * @since 2.0.0
25 */
26 public class JwsHeader extends JwtSecureHeader {
27
28 /**
29 * Constructs a new, empty JwsHeader.
30 */
31 public JwsHeader() {
32 }
33
34 /**
35 * Constructs a new JwsHeader, with its parameters set to the contents of the given Map.
36 *
37 * @param headerParameters A Map containing the parameters to be set in the header.
38 */
39 public JwsHeader(Map<String, Object> headerParameters) {
40 super(headerParameters);
41 }
42
43 /**
44 * Gets the Algorithm set in the JWT header.
45 * <p>
46 * If there is no algorithm set in the JWT header, then the JwsAlgorithm NONE will be returned.
47 *
48 * @return {@inheritDoc}
49 */
50 @Override
51 public JwsAlgorithm getAlgorithm() {
52 String algorithm = getAlgorithmString();
53 if (algorithm == null) {
54 return JwsAlgorithm.NONE;
55 } else {
56 return JwsAlgorithm.valueOf(algorithm);
57 }
58 }
59 }