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1   /**
2    *
3    * Copyright 2005 The Apache Software Foundation
4    *
5    *  Licensed under the Apache License, Version 2.0 (the "License");
6    *  you may not use this file except in compliance with the License.
7    *  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   *  Unless required by applicable law or agreed to in writing, software
12   *  distributed under the License is distributed on an "AS IS" BASIS,
13   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   *  See the License for the specific language governing permissions and
15   *  limitations under the License.
16   */
17  package org.apache.geronimo.security.realm.providers;
18  
19  import java.io.IOException;
20  import java.security.cert.X509Certificate;
21  import javax.security.auth.callback.Callback;
22  import javax.security.auth.callback.UnsupportedCallbackException;
23  
24  /**
25   * @version $Rev: 355877 $ $Date: 2005-12-10 18:48:27 -0800 (Sat, 10 Dec 2005) $
26   */
27  public class CertificateCallbackHandler implements ClearableCallbackHandler {
28      X509Certificate certificate;
29      public CertificateCallbackHandler(X509Certificate certificate) {
30          this.certificate = certificate;
31      }
32  
33      public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
34          for (int i = 0; i < callbacks.length; i++) {
35              Callback callback = callbacks[i];
36              if (callback instanceof CertificateCallback) {
37                  CertificateCallback cc = (CertificateCallback) callback;
38                  cc.setCertificate(certificate);
39              } else {
40                  throw new UnsupportedCallbackException(callback);
41              }
42          }
43      }
44  
45      public void clear() {
46          certificate = null;
47      }
48  }