import java.util.*;

//工廠
class Test{
 
  public void run(){
    Queens queen=new Queens();
   
    QueenThread qt=new QueenThread(queen);
   
    new Thread(qt).start();
   
    new Thread(qt).start();
   
    System.out.println("Len=  "+queen.getQueens().size());
  }
 
  public static void main(String[]args){
    new Test().run();
  }
}

//生產(chǎn)緩存
class Queens{
  private List buffList=null;      
  private final List queenList=new ArrayList(); 
 
  public Queens(){
    init();
  }
 
  public void init(){
   int i=0;
  
   for(int len=0;len<2;len++){
      buffList=new ArrayList();
     
      for(;i<(len+1)*3;i++){
       buffList.add(String.valueOf(i+1));
      }
      queenList.add(buffList);
   }
  }
 
  public synchronized void deleteQueen(int index){
     queenList.remove(index);
  }
 
  public List getQueens(){
    return queenList;
  }
 
  public int getLen(){
    return queenList.size();
  }
}

//處理隊(duì)列緩存
class QueenThread implements Runnable{
   private static int id=0;
   private Queens queen;
  
   public QueenThread(Queens queen){
     this.queen=queen;
   }
  
   private ThreadLocal tl=new ThreadLocal(){
      protected Integer initialValue(){
        return new Integer(id++);
      }
   };

   public void run(){
     int currentId=((Integer)(tl.get())).intValue();
    
     List queenList=(List)queen.getQueens().get(currentId);
    
     for(int i=0;i<queenList.size();i++){
      System.out.println(Thread.currentThread().getName()+" "+(String)queenList.get(i));
      
      try{
        Thread.sleep(2000);
      }catch(InterruptedException e){
       e.printStackTrace();
      }
     
     }
   
     System.out.println(Thread.currentThread().getName()+" ID= "+currentId);
   }
 }