View Javadoc
1   /*
2    * Copyright 2017 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   https://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, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty5.handler.ssl;
17  
18  
19  /**
20   * Event that is fired once we did a selection of a {@link SslContext} based on the {@code SNI hostname},
21   * which may be because it was successful or there was an error.
22   */
23  public final class SniCompletionEvent extends SslCompletionEvent {
24      private final String hostname;
25  
26      /**
27       * Creates a new event that indicates a successful processing of the SNI extension.
28       *
29       * @param hostname      the hostname that was used for SNI.
30       */
31      public SniCompletionEvent(String hostname) {
32          super(null);
33          this.hostname = hostname;
34      }
35  
36      /**
37       * Creates a new event that indicates a failed processing of the SNI extension.
38       *
39       * @param hostname      the hostname that was used for SNI.
40       * @param cause         the cause of the failure.
41       */
42      public SniCompletionEvent(String hostname, Throwable cause) {
43          super(null, cause);
44          this.hostname = hostname;
45      }
46  
47      /**
48       * Creates a new event that indicates a failed processing of the SNI extension.
49       *
50       * @param cause         the cause of the failure.
51       */
52      public SniCompletionEvent(Throwable cause) {
53          this(null, cause);
54      }
55  
56      /**
57       * Returns the SNI hostname send by the client if we were able to parse it, {@code null} otherwise.
58       */
59      public String hostname() {
60          return hostname;
61      }
62  
63      @Override
64      public String toString() {
65          final Throwable cause = cause();
66          return cause == null ? getClass().getSimpleName() + "(SUCCESS='"  + hostname() + "'\")":
67                  getClass().getSimpleName() +  '(' + cause + ')';
68      }
69  }