content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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.
   */
  package com.alibaba.druid.util;
  
  import java.util.concurrent.ThreadFactory;
  import java.util.concurrent.atomic.AtomicInteger;
  
  /**
   * @author sandzhang [sandzhangtoo@gmail.com]
   */
  public class DaemonThreadFactory implements ThreadFactory {
      private AtomicInteger threadNo = new AtomicInteger(1);
      private final String nameStart;
      private final String nameEnd = "]";
  
      public DaemonThreadFactory(String poolName) {
          nameStart = "[" + poolName + "-";
      }
  
      public Thread newThread(Runnable r) {
          String threadName = nameStart + threadNo.getAndIncrement() + nameEnd;
          Thread newThread = new Thread(r, threadName);
          newThread.setDaemon(true);
          if (newThread.getPriority() != Thread.NORM_PRIORITY) {
              newThread.setPriority(Thread.NORM_PRIORITY);
          }
          return newThread;
      }
  
  }
  