spring security SpringCacheBasedUserCache 源码
spring security SpringCacheBasedUserCache 代码
文件路径：/core/src/main/java/org/springframework/security/core/userdetails/cache/SpringCacheBasedUserCache.java
/*
* Copyright 2002-2016 the original author or authors.
*
* 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 org.springframework.security.core.userdetails.cache;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.cache.Cache;
import org.springframework.core.log.LogMessage;
import org.springframework.security.core.userdetails.UserCache;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.util.Assert;
/**
* Caches {@link UserDetails} instances in a Spring defined {@link Cache}.
*
* @author Marten Deinum
* @since 3.2
*/
public class SpringCacheBasedUserCache implements UserCache {
private static final Log logger = LogFactory.getLog(SpringCacheBasedUserCache.class);
private final Cache cache;
public SpringCacheBasedUserCache(Cache cache) {
Assert.notNull(cache, "cache mandatory");
this.cache = cache;
}
@Override
public UserDetails getUserFromCache(String username) {
Cache.ValueWrapper element = (username != null) ? this.cache.get(username) : null;
logger.debug(LogMessage.of(() -> "Cache hit: " + (element != null) + "; username: " + username));
return (element != null) ? (UserDetails) element.get() : null;
}
@Override
public void putUserInCache(UserDetails user) {
logger.debug(LogMessage.of(() -> "Cache put: " + user.getUsername()));
this.cache.put(user.getUsername(), user);
}
public void removeUserFromCache(UserDetails user) {
logger.debug(LogMessage.of(() -> "Cache remove: " + user.getUsername()));
this.removeUserFromCache(user.getUsername());
}
@Override
public void removeUserFromCache(String username) {
this.cache.evict(username);
}
}
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