1 /*
2 * Copyright [2006] [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.saml2.metadata.impl;
18
19 import org.opensaml.common.impl.AbstractSAMLObjectMarshaller;
20 import org.opensaml.saml2.metadata.KeyDescriptor;
21 import org.opensaml.xml.XMLObject;
22 import org.opensaml.xml.io.MarshallingException;
23 import org.opensaml.xml.security.credential.UsageType;
24 import org.w3c.dom.Element;
25
26 /**
27 * A thread-safe marshaller for {@link org.opensaml.saml2.metadata.KeyDescriptor}s.
28 */
29 public class KeyDescriptorMarshaller extends AbstractSAMLObjectMarshaller {
30
31 /** {@inheritDoc} */
32 protected void marshallAttributes(XMLObject xmlObject, Element domElement) throws MarshallingException {
33 KeyDescriptor keyDescriptor = (KeyDescriptor) xmlObject;
34
35 if (keyDescriptor.getUse() != null) {
36 UsageType use = keyDescriptor.getUse();
37 // UsageType enum contains more values than are allowed by SAML 2 schema
38 if (use.equals(UsageType.SIGNING) || use.equals(UsageType.ENCRYPTION)) {
39 domElement.setAttribute(KeyDescriptor.USE_ATTRIB_NAME, use.toString().toLowerCase());
40 } else if (use.equals(UsageType.UNSPECIFIED)) {
41 // emit nothing for unspecified - this is semantically equivalent to non-existent attribute
42 } else {
43 // Just in case values are unknowingly added to UsageType in the future...
44 throw new MarshallingException("KeyDescriptor had illegal value for use attribute: " + use.toString());
45 }
46 }
47 }
48 }