'初始化'

admin

2021-06-29 0a03971cf8b1ca89f171946ecce8e8e6435b9ec5

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
/* Copyright 2017 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 
 *  2019.12.15-Changed constructor HuaweiScheduledExecutor
 *                  Huawei Technologies Co., Ltd.
 *
 */
package com.huawei.push.messaging;
 
import com.google.common.base.Strings;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
 
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.ThreadFactory;
 
import static com.google.common.base.Preconditions.checkArgument;
 
/**
 * A single-threaded scheduled executor implementation.
 */
public class HuaweiScheduledExecutor extends ScheduledThreadPoolExecutor {
 
    public HuaweiScheduledExecutor(ThreadFactory threadFactory, String name) {
        this(threadFactory, name, null);
    }
 
    public HuaweiScheduledExecutor(ThreadFactory threadFactory, String name, Thread.UncaughtExceptionHandler handler) {
        super(1, decorateThreadFactory(threadFactory, name, handler));
        setRemoveOnCancelPolicy(true);
    }
 
    static ThreadFactory getThreadFactoryWithName(ThreadFactory threadFactory, String name) {
        return decorateThreadFactory(threadFactory, name, null);
    }
 
    private static ThreadFactory decorateThreadFactory(
            ThreadFactory threadFactory, String name, Thread.UncaughtExceptionHandler handler) {
        checkArgument(!Strings.isNullOrEmpty(name));
        ThreadFactoryBuilder builder = new ThreadFactoryBuilder()
                .setThreadFactory(threadFactory)
                .setNameFormat(name)
                .setDaemon(true);
        if (handler != null) {
            builder.setUncaughtExceptionHandler(handler);
        }
        return builder.build();
    }
}