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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * this work for additional information regarding copyright ownership.<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * The ASF licenses this file to You under the Apache license, Version 2.0<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * the License. You may obtain a copy of the License at<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * See the license for the specific language governing permissions and<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * limitations under the license.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> */<a name="line.16"></a> |
| <span class="sourceLineNo">017</span><a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.logging.log4j.core.util;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.concurrent.ThreadFactory;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.concurrent.atomic.AtomicInteger;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>/**<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> * Creates {@link Log4jThread}s.<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> *<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * @since 2.7<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> */<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>public class Log4jThreadFactory implements ThreadFactory {<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span> private static final String PREFIX = "TF-";<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span> /**<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * Creates a new daemon thread factory.<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> *<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * @param threadFactoryName<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * The thread factory name.<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * @return a new daemon thread factory.<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> */<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> public static Log4jThreadFactory createDaemonThreadFactory(final String threadFactoryName) {<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> return new Log4jThreadFactory(threadFactoryName, true, Thread.NORM_PRIORITY);<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> }<a name="line.41"></a> |
| <span class="sourceLineNo">042</span><a name="line.42"></a> |
| <span class="sourceLineNo">043</span> /**<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * Creates a new thread factory.<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> *<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * This is mainly used for tests. Production code should be very careful with creating<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * non-daemon threads since those will block application shutdown<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * (see https://issues.apache.org/jira/browse/LOG4J2-1748).<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> *<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * @param threadFactoryName<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * The thread factory name.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * @return a new daemon thread factory.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> */<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public static Log4jThreadFactory createThreadFactory(final String threadFactoryName) {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> return new Log4jThreadFactory(threadFactoryName, false, Thread.NORM_PRIORITY);<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> }<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> private static final AtomicInteger FACTORY_NUMBER = new AtomicInteger(1);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> private static final AtomicInteger THREAD_NUMBER = new AtomicInteger(1);<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private final boolean daemon;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> private final ThreadGroup group;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> private final int priority;<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private final String threadNamePrefix;<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> /**<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * Constructs an initialized thread factory.<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> *<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> * @param threadFactoryName<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> * The thread factory name.<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * @param daemon<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * Whether to create daemon threads.<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * @param priority<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * The thread priority.<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> */<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public Log4jThreadFactory(final String threadFactoryName, final boolean daemon, final int priority) {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> this.threadNamePrefix = PREFIX + FACTORY_NUMBER.getAndIncrement() + "-" + threadFactoryName + "-";<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> this.daemon = daemon;<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> this.priority = priority;<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> final SecurityManager securityManager = System.getSecurityManager();<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> this.group = securityManager != null ? securityManager.getThreadGroup()<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> : Thread.currentThread().getThreadGroup();<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> }<a name="line.82"></a> |
| <span class="sourceLineNo">083</span><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> @Override<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public Thread newThread(final Runnable runnable) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> // Log4jThread prefixes names with "Log4j2-".<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> final Thread thread = new Log4jThread(group, runnable, threadNamePrefix + THREAD_NUMBER.getAndIncrement(), 0);<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> if (thread.isDaemon() != daemon) {<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> thread.setDaemon(daemon);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> }<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> if (thread.getPriority() != priority) {<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> thread.setPriority(priority);<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> }<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> return thread;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span>}<a name="line.97"></a> |
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