2 * Copyright 2015-present Open Networking Foundation
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 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package io.atomix.utils.concurrent;
18 import java.lang.ref.WeakReference;
23 * The Atomix thread primarily serves to store a {@link ThreadContext} for the current thread.
24 * The context is stored in a {@link WeakReference} in order to allow the thread to be garbage collected.
26 * There is no {@link ThreadContext} associated with the thread when it is first created.
27 * It is the responsibility of thread creators to {@link #setContext(ThreadContext) set} the thread context when appropriate.
29 * @author <a href="http://github.com/kuujo">Jordan Halterman</a>
31 public class AtomixThread extends Thread {
32 private WeakReference<ThreadContext> context;
34 public AtomixThread(Runnable target) {
39 * Sets the thread context.
41 * @param context The thread context.
43 public void setContext(ThreadContext context) {
44 this.context = new WeakReference<>(context);
48 * Returns the thread context.
50 * @return The thread {@link ThreadContext} or {@code null} if no context has been configured.
52 public ThreadContext getContext() {
53 return context != null ? context.get() : null;