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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.security.keyinfo;
18  
19  import java.util.List;
20  
21  import org.opensaml.xml.security.credential.Credential;
22  import org.opensaml.xml.security.credential.StaticCredentialResolver;
23  
24  /**
25   * Simple implementation of {@link KeyInfoCredentialResolver} which just stores and returns a static set of credentials.
26   * 
27   * <p>
28   * Note: no filtering or other evaluation of the credentials is performed.  Any Criteria
29   * specified are ignored.  For a similar Collection-based KeyInfoCredentialResolver implementation which does support 
30   * evaluation and filtering based on supplied evaluable criteria, see {@link CollectionKeyInfoCredentialResolver}.
31   * </p>
32   * 
33   * <p>
34   * This implementation might also be used at the end of a chain of KeyInfoCredentialResolvers in
35   * order to supply a default, fallback set of credentials, if none could otherwise be resolved.
36   * </p>
37   */
38  public class StaticKeyInfoCredentialResolver extends StaticCredentialResolver implements KeyInfoCredentialResolver {
39      
40      /**
41       * Constructor.
42       *
43       * @param credentials collection of credentials to be held by this resolver
44       */
45      public StaticKeyInfoCredentialResolver(List<Credential> credentials) {
46          super(credentials);
47      }
48      
49      /**
50       * Constructor.
51       *
52       * @param credential a single credential to be held by this resolver
53       */
54      public StaticKeyInfoCredentialResolver(Credential credential) {
55          super(credential);
56      }
57  
58  }