效率不会高的 AbstractBoarHandler

因为 boar application 会维持一个 boarManager ，而 一个boar 会有一个 AbstractBoarHandler ，故而这里

代码这样写会是很消耗资源地 ，你平时写代码有注意这些没 ...

/**
 * Copyright (C) 2006 the original author or authors.
 *
 * This software is published under the terms of the GNU Public License (GPL),
 * a copy of which is included in this distribution.
 */

package com.boar;

import java.util.List;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import com.boar.domain.Instruct;
import com.boar.domain.InstructManager;
import com.boar.domain.impl.DBInstructManager;

/**
 * Abstract Handler 
 *
 * @author <a href="zhuaming@gmail.com">Ben </a>
 *
 */

public abstract class AbstractBoarHandler {
 
 protected InstructManager instructManager = new DBInstructManager();
 protected List<Instruct> instructs = null;
 private String workgroupID ;
 
 public AbstractBoarHandler(String workgroupID) {
  this.workgroupID = workgroupID;
  instructs = instructManager.getInstructs(workgroupID);
  
  ScheduledExecutorService scheduledExecute = Executors.newSingleThreadScheduledExecutor();
  scheduledExecute.scheduleAtFixedRate(new Worker(),1, 120, TimeUnit.SECONDS);
 }

 public abstract String process(String packet);
  
 private class Worker implements Runnable {
  public void run() {
   instructs = instructManager.getInstructs(workgroupID);
  } 
 }
 
}