Package com.networknt.http.client.oauth.cache

Class LongestExpireCacheStrategy

java.lang.Object

com.networknt.http.client.oauth.cache.LongestExpireCacheStrategy

All Implemented Interfaces:

ICacheStrategy

public class LongestExpireCacheStrategy
extends Object
implements ICacheStrategy

This class is to cache Jwts with "LongestExpire" strategy, which means: When the cache pool meets the capacity and a new jwt with provided key needs to be cached: the token with the longest expiry time will be the last to be replaced, the token with the least expiry time will be the first to be replace.

Constructor Summary

Constructors

Constructor	Description
LongestExpireCacheStrategy(int capacity)

Method Summary

Modifier and Type	Method	Description
void	cacheJwt(Jwt.Key cachedKey, Jwt jwt)	This method is to cache a jwt LongestExpireCacheStrategy based on a given Jwt.Key and a Jwt.
Jwt	getCachedJwt(Jwt.Key key)	get Jwt from cache pool based on provided Jwt.Key key

Methods inherited from class java.lang.Object

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

Constructor Detail

LongestExpireCacheStrategy

public LongestExpireCacheStrategy(int capacity)

Method Detail

cacheJwt

public void cacheJwt(Jwt.Key cachedKey,
                     Jwt jwt)

This method is to cache a jwt LongestExpireCacheStrategy based on a given Jwt.Key and a Jwt. Every time it updates the expiry time of a jwt, and shift it up to a proper position. Since the PriorityQueue is implemented by heap, the average O(n) should be O(log n).

Specified by:

cacheJwt in interface ICacheStrategy

Parameters:

cachedKey - Jwt.Key the key to be used to cache

jwt - Jwt the jwt to be cached

getCachedJwt

public Jwt getCachedJwt(Jwt.Key key)

get Jwt from cache pool based on provided Jwt.Key key

Specified by:

getCachedJwt in interface ICacheStrategy

Parameters:

key - Jwt.Key

Returns:

Jwt jwt