timecomputeutils.java

来自「一个成熟的论坛」· Java 代码 · 共 50 行

package com.singnet.util;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import com.singnet.data.OfflineBean;
import com.singnet.data.OnlineBean;

public class TimeComputeUtils
{
	public static List<OnlineBean> 		ONLINE_LIST;
	public static List<OfflineBean>		OFFLINE_LIST;
	
	static {
		ONLINE_LIST = new ArrayList<OnlineBean>();
		OFFLINE_LIST = new ArrayList<OfflineBean>();
	}
	
	public static long compute(OnlineBean olb)
	{
		return olb.getEndTime() - olb.getStartTime();
	}
	
	public static OnlineBean getOnlineBeanByUserID(String userID) 
	{
		Iterator<OnlineBean> it = ONLINE_LIST.iterator();
		while(it.hasNext()) {
			OnlineBean olb = it.next();
			if(olb.isCurrentUser(userID)) return olb;
		}
		return null;
	}
	
	public static boolean isAlreadyOnline(String userID) 
	{
		Iterator<OnlineBean> it = ONLINE_LIST.iterator();
		while(it.hasNext()) {
			OnlineBean olb = it.next();
			if(olb.isCurrentUser(userID)) return true;
		}
		return false;
	}
	
	public static int getOnlineNum()
	{
		return ONLINE_LIST.size();
	}
}