View Javadoc

1   /*
2    * ====================================================================
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *   http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing,
14   * software distributed under the License is distributed on an
15   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16   * KIND, either express or implied.  See the License for the
17   * specific language governing permissions and limitations
18   * under the License.
19   * ====================================================================
20   *
21   * This software consists of voluntary contributions made by many
22   * individuals on behalf of the Apache Software Foundation.  For more
23   * information on the Apache Software Foundation, please see
24   * <http://www.apache.org/>.
25   *
26   */
27  package org.apache.http.impl.nio;
28  
29  import javax.net.ssl.SSLContext;
30  import java.security.NoSuchAlgorithmException;
31  
32  // TODO: to be replaced by SSLContext#getDefault() after upgrade to 1.6
33  class SSLContextUtils {
34  
35      static SSLContext getDefault() {
36          SSLContext sslcontext;
37          try {
38              try {
39                  sslcontext = SSLContext.getInstance("Default");
40              }  catch (NoSuchAlgorithmException ex) {
41                  sslcontext = SSLContext.getInstance("TLS");
42              }
43              sslcontext.init(null, null, null);
44          } catch (final Exception ex) {
45              throw new IllegalStateException("Failure initializing default SSL context", ex);
46          }
47          return sslcontext;
48      }
49  
50  }