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 *  BACKENDLESS.COM CONFIDENTIAL
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 *  Copyright 2012 BACKENDLESS.COM. All Rights Reserved.
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 *  if any. The intellectual and technical concepts contained herein are proprietary to Backendless.com and its
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package com.backendless;

import java.util.concurrent.ThreadFactory;

class ThreadFactoryService implements ThreadFactory
{
  private final static String DEFAULT_THREAD_GROUP_NAME = "Backendless_thread_group";
  private final static ThreadGroup THREAD_GROUP;
  private static ThreadFactoryService instance;

  static
  {
    THREAD_GROUP = new ThreadGroup( DEFAULT_THREAD_GROUP_NAME );
  }

  @Override
  public Thread newThread( Runnable runnable )
  {
    return new Thread( THREAD_GROUP, runnable );
  }

  protected static ThreadFactoryService getThreadFactory()
  {
    if( instance == null )
      synchronized( ThreadFactoryService.class )
      {
        if( instance == null )
        {
          instance = new ThreadFactoryService();
        }
      }

    return instance;
  }
}