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package com.holmos.cache.status;

import java.util.concurrent.atomic.AtomicLongFieldUpdater;


/**
 * 缓存的状态信息
 * @author: 吴银龙([email protected])
 * @version: 2013-3-12 下午10:13:50 
 */

public class CacheStatus {
	
	private AtomicLongFieldUpdater DATA_MOUNT= AtomicLongFieldUpdater.newUpdater(CacheStatus.class, "dataMount");
	private AtomicLongFieldUpdater USED_SIZE= AtomicLongFieldUpdater.newUpdater(CacheStatus.class, "usedSize");
	private AtomicLongFieldUpdater VISIT_TIMES= AtomicLongFieldUpdater.newUpdater(CacheStatus.class, "visitTimes");
	private AtomicLongFieldUpdater UPDATE_TIMES= AtomicLongFieldUpdater.newUpdater(CacheStatus.class, "updateTimes");
	private AtomicLongFieldUpdater HIT_TIMES= AtomicLongFieldUpdater.newUpdater(CacheStatus.class, "hitTimes");
	/**缓存的层级*/
	private byte level;
	
	/**缓存元素个数*/
	private long dataMount;
	
	/**已用缓存大小，单位Byte*/
	private long usedSize;
	
	public byte getLevel() {
		return level;
	}

	public void setLevel(byte level) {
		this.level = level;
	}

	public long getDataMount() {
		return dataMount;
	}

	public void setDataMount(long dataMount) {
		this.dataMount = dataMount;
	}

	public long getUsedSize() {
		return usedSize;
	}

	public void setUsedSize(long usedSize) {
		this.usedSize = usedSize;
	}

	public long getVisitTimes() {
		return visitTimes;
	}

	public void setVisitTimes(long visitTimes) {
		this.visitTimes = visitTimes;
	}

	public long getUpdateTimes() {
		return updateTimes;
	}

	public void setUpdateTimes(long updateTimes) {
		this.updateTimes = updateTimes;
	}

	public long getPutTimes() {
		return putTimes;
	}

	public void setPutTimes(long putTimes) {
		this.putTimes = putTimes;
	}

	public long getLiveTime() {
		return liveTime;
	}

	public void setLiveTime(long liveTime) {
		this.liveTime = liveTime;
	}

	public long getHitTimes() {
		return hitTimes;
	}

	public void setHitTimes(long hitTimes) {
		this.hitTimes = hitTimes;
	}

	public long getMissTime() {
		return missTime;
	}

	public void setMissTime(long missTime) {
		this.missTime = missTime;
	}

	/**缓存读取次数*/
	private long visitTimes;

	/**缓存更新次数，指对以前缓存中已有数据的更新次数*/
	private long updateTimes;
	
	/**缓存写入次数，指原来在缓存中没有的数据*/
	private long putTimes;
	
	/**缓存数据的存活时间*/
	private long liveTime;
	
	/**命中次数*/
	private long hitTimes;
	
	/**没有命中的次数*/
	private long missTime;
	
	public void increaceHitTime(){
		HIT_TIMES.incrementAndGet(this);
		VISIT_TIMES.incrementAndGet(this);
	}
	
	public void increaceVisitTime(){
		VISIT_TIMES.incrementAndGet(this);
	}
	
	public void increaceUpdateTime(){
		VISIT_TIMES.incrementAndGet(this);
		UPDATE_TIMES.incrementAndGet(this);
	}
	
	public void increaceDataMount(){
		DATA_MOUNT.incrementAndGet(this);
	}
	
	public void decreaceDataMount(){
		DATA_MOUNT.decrementAndGet(this);
	}
	
	public void addUsedSize(long size){
		USED_SIZE.addAndGet(this, size);
	}
	
	public void minusUsedSize(long size){
		USED_SIZE.addAndGet(this, 0 - size );
	}
}