content: /*
   *  Copyright Beijing 58 Information Technology Co.,Ltd.
   *
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you 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.bj58.spat.gaea.server.util.tools;
  
  public class ThreadRenameRunnable implements Runnable {
  	
      private final Runnable runnable;
      private final String proposedThreadName;
  
      public ThreadRenameRunnable(Runnable runnable, String proposedThreadName) {
          if (runnable == null) {
              throw new NullPointerException("runnable");
          }
          if (proposedThreadName == null) {
              throw new NullPointerException("proposedThreadName");
          }
          this.runnable = runnable;
          this.proposedThreadName = proposedThreadName;
      }
  
      public void run() {
          final Thread currentThread = Thread.currentThread();
          final String oldThreadName = currentThread.getName();
          final String newThreadName = proposedThreadName;
  
          // 修改线程名
          boolean renamed = false;
          if (!oldThreadName.equals(newThreadName)) {
              try {
                  currentThread.setName(newThreadName);
                  renamed = true;
              } catch (SecurityException e) {
              	e.printStackTrace();
              }
          }
  
          try {
              runnable.run();
          } finally {
              if (renamed) {
                  // 执行完毕后将线程名重置回去
                  currentThread.setName(oldThreadName);
              }
          }
      }
  }