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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;
18  
19  import java.util.ArrayList;
20  import java.util.List;
21  
22  /**
23   * Implementation of {@link EncryptedKeyResolver} which finds {@link EncryptedKey} elements
24   * within the {@link org.opensaml.xml.signature.KeyInfo} of the {@link EncryptedData} context.
25   */
26  public class InlineEncryptedKeyResolver extends AbstractEncryptedKeyResolver {
27  
28      /** {@inheritDoc} */
29      public Iterable<EncryptedKey> resolve(EncryptedData encryptedData) {
30          List<EncryptedKey> resolvedEncKeys = new ArrayList<EncryptedKey>();
31          
32          if (encryptedData.getKeyInfo() == null) {
33              return resolvedEncKeys;
34          }
35          
36          for (EncryptedKey encKey : encryptedData.getKeyInfo().getEncryptedKeys()) {
37              if (matchRecipient(encKey.getRecipient())) {
38                  resolvedEncKeys.add(encKey);
39              }
40          }
41          
42          return resolvedEncKeys;
43      }
44  
45  }