1 /*
2 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License").
5 * You may not use this file except in compliance with the License.
6 * A copy of the License is located at
7 *
8 * http://aws.amazon.com/apache2.0
9 *
10 * or in the "license" file accompanying this file. This file is distributed
11 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
12 * express or implied. See the License for the specific language governing
13 * permissions and limitations under the License.
14 */
15
16 package software.amazon.awssdk.utils;
17
18 import java.util.concurrent.ThreadFactory;
19 import software.amazon.awssdk.annotations.SdkProtectedApi;
20
21 /**
22 * An decorator for {@link ThreadFactory} that sets all threads it creates to be daemon threads.
23 */
24 @SdkProtectedApi
25 public class DaemonThreadFactory implements ThreadFactory {
26 private final ThreadFactory delegate;
27
28 public DaemonThreadFactory(ThreadFactory delegate) {
29 this.delegate = Validate.notNull(delegate, "delegate must not be null");
30 }
31
32 @Override
33 public Thread newThread(Runnable runnable) {
34 Thread thread = delegate.newThread(runnable);
35 thread.setDaemon(true);
36 return thread;
37 }
38 }
39