Package cn.herodotus.engine.web.service.stamp

Class AccessLimitedStampManager

java.lang.Object

cn.herodotus.engine.cache.jetcache.stamp.AbstractStampManager<String,Long>

cn.herodotus.engine.web.service.stamp.AccessLimitedStampManager

All Implemented Interfaces:

StampManager<String,Long>, org.springframework.beans.factory.InitializingBean

public class AccessLimitedStampManager
extends AbstractStampManager<String,Long>

Description: 防刷签章管理器

这里使用Long类型作为值的存储类型，是为了解决该Cache 同时可以存储Duration相关的数据

Author:

: gengwei.zheng

Date:

: 2021/8/25 21:43

Constructor Summary

Constructors

Constructor	Description
AccessLimitedStampManager(SecureProperties secureProperties)

Method Summary

Modifier and Type	Method	Description
void	afterPropertiesSet()
Duration	calculateRemainingTime(Duration configuredDuration, String expireKey)	计算剩余过期时间
SecureProperties	getSecureProperties()
Long	nextStamp(String key)

Methods inherited from class cn.herodotus.engine.cache.jetcache.stamp.AbstractStampManager

check, delete, get, getCache, getExpire, lock, lockAndRun, put, setExpire

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface cn.herodotus.engine.cache.jetcache.stamp.StampManager

containKey, create, create, create, lock, lock, lockAndRun, lockAndRun, put, put

Constructor Details

AccessLimitedStampManager

public AccessLimitedStampManager(SecureProperties secureProperties)

Method Details

getSecureProperties

public SecureProperties getSecureProperties()

nextStamp

public Long nextStamp(String key)

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Throws:

Exception

calculateRemainingTime

public Duration calculateRemainingTime(Duration configuredDuration,
 String expireKey)

计算剩余过期时间

每次create或者put，缓存的过期时间都会被覆盖。（注意：Jetcache put 方法的参数名：expireAfterWrite）。 因为Jetcache没有Redis的incr之类的方法，那么每次放入Times值，都会更新过期时间，实际操作下来是变相的延长了过期时间。

Parameters:

configuredDuration - 注解上配置的、且可以正常解析的Duration值

expireKey - 时间标记存储Key值。

Returns:

还剩余的过期时间 Duration