package com.yeejoin.amos.patrol.business.util;


import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

public class CacheMap{
	//缓存Map
	ConcurrentHashMap<String, CacheValue> cacheMap=new ConcurrentHashMap<String, CacheValue> ();
	//保证不能被外界 构造
	CacheMap(){
	}
	public void setex(String key,Toke value,long times){
	CacheValue cValue=new CacheValue();
	cValue.setTimes(System.currentTimeMillis()+times*1000);
	cValue.setValue(value);
	cacheMap.put(key, cValue);
	}
	public Toke getValue(String key){
	CacheValue cValue=cacheMap.get(key);
	if(cValue!=null && cValue.getTimes()>System.currentTimeMillis()){
	return cValue.getValue();
	}else if(cValue!=null && cacheMap.containsKey(key)){
	//清理一次
	cacheMap.remove(key);
	}
	return null;
	}
	/**
	获取key集合
	@return
	*/
	public Set getKeys(){
	return cacheMap.keySet();
	}
	}