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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.core.impl;
18  
19  import java.util.ArrayList;
20  import java.util.Collections;
21  import java.util.List;
22  
23  import org.opensaml.common.impl.AbstractSAMLObject;
24  import org.opensaml.saml2.core.EncryptedElementType;
25  import org.opensaml.xml.XMLObject;
26  import org.opensaml.xml.encryption.EncryptedData;
27  import org.opensaml.xml.encryption.EncryptedKey;
28  import org.opensaml.xml.util.XMLObjectChildrenList;
29  
30  /**
31   * A concrete implementation of {@link org.opensaml.saml2.core.EncryptedElementType}.
32   */
33  public class EncryptedElementTypeImpl extends AbstractSAMLObject implements EncryptedElementType {
34      
35      /** EncryptedData child element. */
36      private EncryptedData encryptedData;
37      
38      /** EncryptedKey children. */
39      private final XMLObjectChildrenList<EncryptedKey> encryptedKeys;
40  
41      /**
42       * Constructor.
43       *
44       * @param namespaceURI the namespace the element is in
45       * @param elementLocalName the local name of the XML element this Object represents
46       * @param namespacePrefix the prefix for the given namespace
47       */
48      protected EncryptedElementTypeImpl(String namespaceURI, String elementLocalName, String namespacePrefix) {
49          super(namespaceURI, elementLocalName, namespacePrefix);
50          encryptedKeys = new XMLObjectChildrenList<EncryptedKey>(this);
51      }
52  
53      /** {@inheritDoc} */
54      public EncryptedData getEncryptedData() {
55          return this.encryptedData;
56      }
57  
58      /** {@inheritDoc} */
59      public void setEncryptedData(EncryptedData newEncryptedData) {
60          this.encryptedData = prepareForAssignment(this.encryptedData, newEncryptedData);
61      }
62  
63      /** {@inheritDoc} */
64      public List<EncryptedKey> getEncryptedKeys() {
65          return this.encryptedKeys;
66      }
67  
68      /** {@inheritDoc} */
69      public List<XMLObject> getOrderedChildren() {
70          ArrayList<XMLObject> children = new ArrayList<XMLObject>();
71          
72          if (encryptedData != null) {
73              children.add(encryptedData);
74          }
75          
76          children.addAll(encryptedKeys);
77          
78          if (children.size() == 0) {
79              return null;
80          }
81          
82          return Collections.unmodifiableList(children);
83      }
84  
85  }