com.yqjr.framework.component.shiro.SessionCacheManager Maven / Gradle / Ivy
package com.yqjr.framework.component.shiro;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import javax.servlet.http.HttpServletRequest;
import org.apache.shiro.SecurityUtils;
import org.apache.shiro.UnavailableSecurityManagerException;
import org.apache.shiro.cache.Cache;
import org.apache.shiro.cache.CacheException;
import org.apache.shiro.cache.CacheManager;
import org.apache.shiro.session.InvalidSessionException;
import org.apache.shiro.session.Session;
import org.apache.shiro.subject.Subject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.yqjr.framework.utils.ServletUtil;
/**
*
* ClassName: SessionCacheManager
* Description: 自定义授权缓存管理类
* Create By: Wanglei
* Create Date: 2017年5月12日 下午5:53:43
* Modified By:
* Modified Date:
* Modified Content:
* Version: 1.0
*
*/
public class SessionCacheManager implements CacheManager {
@Override
public Cache getCache(String name) throws CacheException {
return new SessionCache(name);
}
/**
* SESSION缓存管理类
*/
public class SessionCache implements Cache {
private Logger logger = LoggerFactory.getLogger(getClass());
private String cacheKeyName = null;
public SessionCache(String cacheKeyName) {
this.cacheKeyName = cacheKeyName;
}
public Session getSession(){
Session session = null;
try{
Subject subject = SecurityUtils.getSubject();
session = subject.getSession(false);
if (session == null){
session = subject.getSession();
}
}catch (InvalidSessionException e){
logger.error("Invalid session error", e);
}catch (UnavailableSecurityManagerException e2){
logger.error("Unavailable SecurityManager error", e2);
}
return session;
}
@SuppressWarnings("unchecked")
@Override
public V get(K key) throws CacheException {
if (key == null){
return null;
}
V v = null;
HttpServletRequest request = ServletUtil.getRequest();
if (request != null){
v = (V)request.getAttribute(cacheKeyName);
if (v != null){
return v;
}
}
V value = null;
value = (V)getSession().getAttribute(cacheKeyName);
logger.debug("get {} {} {}", cacheKeyName, key, request != null ? request.getRequestURI() : "");
if (request != null && value != null){
request.setAttribute(cacheKeyName, value);
}
return value;
}
@Override
public V put(K key, V value) throws CacheException {
if (key == null){
return null;
}
getSession().setAttribute(cacheKeyName, value);
if (logger.isDebugEnabled()){
HttpServletRequest request = ServletUtil.getRequest();
logger.debug("put {} {} {}", cacheKeyName, key, request != null ? request.getRequestURI() : "");
}
return value;
}
@SuppressWarnings("unchecked")
@Override
public V remove(K key) throws CacheException {
V value = null;
value = (V)getSession().removeAttribute(cacheKeyName);
logger.debug("remove {} {}", cacheKeyName, key);
return value;
}
@Override
public void clear() throws CacheException {
getSession().removeAttribute(cacheKeyName);
logger.debug("clear {}", cacheKeyName);
}
@Override
public int size() {
logger.debug("invoke session size abstract size method not supported.");
return 0;
}
@Override
public Set keys() {
logger.debug("invoke session keys abstract size method not supported.");
return new HashSet();
}
@Override
public Collection values() {
logger.debug("invoke session values abstract size method not supported.");
return Collections.emptyList();
}
}
}