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 * 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, 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.netty.handler.ssl;
17
18 import io.netty.util.internal.ObjectUtil;
19
20 public abstract class SslCompletionEvent {
21
22 private final Throwable cause;
23
24 SslCompletionEvent() {
25 cause = null;
26 }
27
28 SslCompletionEvent(Throwable cause) {
29 this.cause = ObjectUtil.checkNotNull(cause, "cause");
30 }
31
32 /**
33 * Return {@code true} if the completion was successful
34 */
35 public final boolean isSuccess() {
36 return cause == null;
37 }
38
39 /**
40 * Return the {@link Throwable} if {@link #isSuccess()} returns {@code false}
41 * and so the completion failed.
42 */
43 public final Throwable cause() {
44 return cause;
45 }
46
47 @Override
48 public final String toString() {
49 final Throwable cause = cause();
50 return cause == null? getClass().getSimpleName() + "(SUCCESS)" :
51 getClass().getSimpleName() + '(' + cause + ')';
52 }
53 }