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.encryption.validator;
18
19 import javax.xml.namespace.QName;
20
21 import org.opensaml.xml.XMLObject;
22 import org.opensaml.xml.encryption.ReferenceType;
23 import org.opensaml.xml.util.DatatypeHelper;
24 import org.opensaml.xml.util.XMLConstants;
25 import org.opensaml.xml.validation.ValidationException;
26 import org.opensaml.xml.validation.Validator;
27
28 /**
29 * Checks {@link org.opensaml.xml.encryption.ReferenceType} for Schema compliance.
30 */
31 public class ReferenceTypeSchemaValidator implements Validator<ReferenceType> {
32
33 /** {@inheritDoc} */
34 public void validate(ReferenceType xmlObject) throws ValidationException {
35 validateURI(xmlObject);
36 validateChildrenNamespaces(xmlObject);
37 }
38
39 /**
40 * Validate the URI.
41 *
42 * @param xmlObject the object to validate
43 * @throws ValidationException thrown if the object is invalid
44 */
45 protected void validateURI(ReferenceType xmlObject) throws ValidationException {
46 if (DatatypeHelper.isEmpty(xmlObject.getURI())) {
47 throw new ValidationException("ReferenceType URI was empty");
48 }
49 }
50
51 /**
52 * Validate that all children are from another namespace.
53 *
54 * @param xmlObject the object to validate
55 * @throws ValidationException thrown if the object is invalid
56 */
57 protected void validateChildrenNamespaces(ReferenceType xmlObject) throws ValidationException {
58 // Validate that any children are from another namespace.
59 for (XMLObject child : xmlObject.getUnknownXMLObjects()) {
60 QName childName = child.getElementQName();
61 if (XMLConstants.XMLENC_NS.equals(childName.getNamespaceURI())) {
62 throw new ValidationException("ReferenceType contains an illegal child extension element: " + childName);
63 }
64 }
65 }
66
67 }