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/*
 * Copyright (c) 2015-2021, www.dibo.ltd ([email protected]).
 * 

* Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at *

* https://www.apache.org/licenses/LICENSE-2.0 *

* Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */ package com.diboot.iam.redis; import org.apache.shiro.cache.Cache; import org.apache.shiro.cache.CacheException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.data.redis.core.RedisTemplate; import java.util.Collection; import java.util.HashSet; import java.util.Set; import java.util.concurrent.TimeUnit; /** * RedisCache缓存定义 * * @author : uu * @version : v1.0 * @Date 2021/6/8 18:36 * Copyright © diboot.com */ public class ShiroRedisCache implements Cache { private static final Logger log = LoggerFactory.getLogger(ShiroRedisCache.class); private RedisTemplate redisTemplate; private String cacheName; private static final String SUFFIX_KEYS = "_KEYS"; private int tokenExpireMinutes; public ShiroRedisCache(String cacheName, RedisTemplate redisTemplate, int tokenExpireMinutes) { this.cacheName = cacheName; this.redisTemplate = redisTemplate; this.tokenExpireMinutes = tokenExpireMinutes; } private String getKey(String key){ return this.cacheName + ":" + key; } @Override public V get(K k) throws CacheException { String key = this.getKey(k.toString()); log.debug("get key : {}", key); return (V)redisTemplate.opsForValue().get(key); } @Override public V put(K k , V v) throws CacheException { if (k == null || v == null) { return null; } String key = this.getKey(k.toString()); log.debug("put key : {}, value: {}", key, v); redisTemplate.opsForValue().set(key, v, tokenExpireMinutes, TimeUnit.MINUTES); // 添加keys redisTemplate.opsForSet().add(this.cacheName + SUFFIX_KEYS, key); log.debug("redis缓存新增key:{}", key); return v; } @Override public V remove(K k) throws CacheException { if (k == null) { return null; } String key = this.getKey(k.toString()); V value = get(k); log.debug("remove key : {}", key); redisTemplate.delete(key); // 从keys缓存中移除 redisTemplate.opsForSet().remove(this.cacheName + SUFFIX_KEYS, key); log.debug("redis缓存移除key:{}", key); return value; } @Override public void clear() throws CacheException { redisTemplate.delete(this.keys()); } @Override public int size() { return keys().size(); } @Override public Set keys() { return (Set) redisTemplate.opsForSet().members(this.cacheName + SUFFIX_KEYS); } @Override public Collection values() { Set keys = keys(); Set values = new HashSet<>(keys.size()); for (K key: keys) { V value = (V)redisTemplate.opsForValue().get(key); if(value != null){ values.add(value); } } return values; } }





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