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1   /*
2    * Copyright [2005] [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  /**
18   * 
19   */
20  
21  package org.opensaml.saml2.core.impl;
22  
23  import org.opensaml.common.impl.AbstractSAMLObjectUnmarshaller;
24  import org.opensaml.saml2.core.AuthnContextClassRef;
25  import org.opensaml.saml2.core.AuthnContextComparisonTypeEnumeration;
26  import org.opensaml.saml2.core.AuthnContextDeclRef;
27  import org.opensaml.saml2.core.RequestedAuthnContext;
28  import org.opensaml.xml.XMLObject;
29  import org.opensaml.xml.io.UnmarshallingException;
30  import org.w3c.dom.Attr;
31  
32  /**
33   * A thread-safe Unmarshaller for {@link org.opensaml.saml2.core.RequestedAuthnContext} objects.
34   */
35  public class RequestedAuthnContextUnmarshaller extends AbstractSAMLObjectUnmarshaller {
36  
37      /** {@inheritDoc} */
38      protected void processAttribute(XMLObject samlObject, Attr attribute) throws UnmarshallingException {
39          RequestedAuthnContext rac = (RequestedAuthnContext) samlObject;
40  
41          if (attribute.getLocalName().equals(RequestedAuthnContext.COMPARISON_ATTRIB_NAME)) {
42              if ("exact".equals(attribute.getValue())) {
43                  rac.setComparison(AuthnContextComparisonTypeEnumeration.EXACT);
44              } else if ("minimum".equals(attribute.getValue())) {
45                  rac.setComparison(AuthnContextComparisonTypeEnumeration.MINIMUM);
46              } else if ("maximum".equals(attribute.getValue())) {
47                  rac.setComparison(AuthnContextComparisonTypeEnumeration.MAXIMUM);
48              } else if ("better".equals(attribute.getValue())) {
49                  rac.setComparison(AuthnContextComparisonTypeEnumeration.BETTER);
50              } else {
51                  throw new UnmarshallingException("Saw an invalid value for Comparison attribute: "
52                          + attribute.getValue());
53              }
54          } else {
55              super.processAttribute(samlObject, attribute);
56          }
57      }
58  
59      /** {@inheritDoc} */
60      protected void processChildElement(XMLObject parentSAMLObject, XMLObject childSAMLObject)
61              throws UnmarshallingException {
62          RequestedAuthnContext rac = (RequestedAuthnContext) parentSAMLObject;
63          if (childSAMLObject instanceof AuthnContextClassRef) {
64              rac.getAuthnContextClassRefs().add((AuthnContextClassRef) childSAMLObject);
65          } else if (childSAMLObject instanceof AuthnContextDeclRef) {
66              rac.getAuthnContextDeclRefs().add((AuthnContextDeclRef) childSAMLObject);
67          } else {
68              super.processChildElement(parentSAMLObject, childSAMLObject);
69          }
70      }
71  }