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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.xml.encryption.impl;
18  
19  import java.util.ArrayList;
20  import java.util.Collections;
21  import java.util.List;
22  
23  import org.opensaml.xml.XMLObject;
24  import org.opensaml.xml.encryption.EncryptionProperties;
25  import org.opensaml.xml.encryption.EncryptionProperty;
26  import org.opensaml.xml.util.XMLObjectChildrenList;
27  import org.opensaml.xml.validation.AbstractValidatingXMLObject;
28  
29  /**
30   * Concrete implementation of {@link org.opensaml.xml.encryption.EncryptionProperties}.
31   */
32  public class EncryptionPropertiesImpl extends AbstractValidatingXMLObject implements EncryptionProperties {
33      
34      /** Id attribute value. */
35      private String id;
36      
37      /** EncryptionProperty child elements. */
38      private final XMLObjectChildrenList encryptionProperties;
39  
40      /**
41       * Constructor.
42       *
43       * @param namespaceURI
44       * @param elementLocalName
45       * @param namespacePrefix
46       */
47      protected EncryptionPropertiesImpl(String namespaceURI, String elementLocalName, String namespacePrefix) {
48          super(namespaceURI, elementLocalName, namespacePrefix);
49          encryptionProperties = new XMLObjectChildrenList<EncryptionProperty>(this);
50      }
51  
52      /** {@inheritDoc} */
53      public String getID() {
54          return this.id;
55      }
56  
57      /** {@inheritDoc} */
58      public void setID(String newID) {
59          String oldID = this.id;
60          this.id = prepareForAssignment(this.id, newID);
61          registerOwnID(oldID, this.id);
62      }
63  
64      /** {@inheritDoc} */
65      public List<EncryptionProperty> getEncryptionProperties() {
66          return (List<EncryptionProperty>) encryptionProperties;
67      }
68  
69      /** {@inheritDoc} */
70      public List<XMLObject> getOrderedChildren() {
71          ArrayList<XMLObject> children = new ArrayList<XMLObject>();
72          
73          children.addAll((List<XMLObject>) encryptionProperties);
74          
75          if (children.size() == 0) {
76              return null;
77          }
78          
79          return Collections.unmodifiableList(children);
80      }
81  
82  }