1 /*
2 * Copyright [2007] [University Corporation for Advanced Internet Development, Inc.]
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.opensaml.xml.signature.validator;
18
19 import org.opensaml.xml.signature.Signature;
20 import org.opensaml.xml.util.DatatypeHelper;
21 import org.opensaml.xml.validation.ValidationException;
22 import org.opensaml.xml.validation.Validator;
23
24 /**
25 * Checks {@link org.opensaml.xml.signature.Signature} for Schema compliance.
26 */
27 public class SignatureSchemaValidator implements Validator<Signature> {
28
29 /** {@inheritDoc} */
30 public void validate(Signature xmlObject) throws ValidationException {
31 validateSignatureMethod(xmlObject);
32 validateCanonicalizationMethod(xmlObject);
33 }
34
35 /**
36 * Check the canonicalization method.
37 *
38 * @param xmlObject the object to be validated
39 * @throws ValidationException thrown if object is invalid
40 */
41 protected void validateCanonicalizationMethod(Signature xmlObject) throws ValidationException {
42 if (DatatypeHelper.isEmpty(xmlObject.getCanonicalizationAlgorithm())) {
43 throw new ValidationException("The CanonicalizationMethod value was empty");
44 }
45 }
46
47 /**
48 * Check the signature method.
49 *
50 * @param xmlObject the object to be validated
51 * @throws ValidationException thrown if object is invalid
52 */
53 protected void validateSignatureMethod(Signature xmlObject) throws ValidationException {
54 if (DatatypeHelper.isEmpty(xmlObject.getSignatureAlgorithm())) {
55 throw new ValidationException("The SignatureMethod value was empty");
56 }
57 }
58
59 }