@Override
protected void storeSession(final RedisSession session) {
if (!session.redisMap.isEmpty()) {
final Map<String, String> toStore =
session.redisMap.containsKey("attributes")
? session.redisMap
: new TreeMap<String, String>(session.redisMap);
if (toStore.containsKey("attributes"))
toStore.put("attributes", serializer.serialize(session.getSessionAttributes()));
LOG.debug(
"[RedisSessionManager] storeSession - Storing session id={}", session.getClusterId());
jedisExecutor.execute(
new JedisCallback<Object>() {
@Override
public Object execute(Jedis jedis) {
session.lastSaved = System.currentTimeMillis();
toStore.put("lastSaved", "" + session.lastSaved);
return jedis.multi(
new TransactionBlock() {
@Override
public void execute() throws JedisException {
final String key =
RedisSessionIdManager.REDIS_SESSION_KEY + session.getClusterId();
super.hmset(key, toStore);
int ttl = session.getMaxInactiveInterval();
if (ttl > 0) {
super.expire(key, ttl);
}
}
});
}
});
session.redisMap.clear();
}
}
public RedisSession createSession() {
RedisSession redisSession = new RedisSession();
if (defaultMaxInactiveInterval != null) {
redisSession.setMaxInactiveIntervalInSeconds(defaultMaxInactiveInterval);
}
return redisSession;
}
/**
* @param id the session id
* @param allowExpired if true, will also include expired sessions that have not been deleted. If
* false, will ensure expired sessions are not returned.
* @return
*/
private RedisSession getSession(String id, boolean allowExpired) {
Map<Object, Object> entries = getSessionBoundHashOperations(id).entries();
if (entries.isEmpty()) {
return null;
}
MapSession loaded = new MapSession();
loaded.setId(id);
for (Map.Entry<Object, Object> entry : entries.entrySet()) {
String key = (String) entry.getKey();
if (CREATION_TIME_ATTR.equals(key)) {
loaded.setCreationTime((Long) entry.getValue());
} else if (MAX_INACTIVE_ATTR.equals(key)) {
loaded.setMaxInactiveIntervalInSeconds((Integer) entry.getValue());
} else if (LAST_ACCESSED_ATTR.equals(key)) {
loaded.setLastAccessedTime((Long) entry.getValue());
} else if (key.startsWith(SESSION_ATTR_PREFIX)) {
loaded.setAttribute(key.substring(SESSION_ATTR_PREFIX.length()), entry.getValue());
}
}
if (!allowExpired && loaded.isExpired()) {
return null;
}
RedisSession result = new RedisSession(loaded);
result.originalLastAccessTime =
loaded.getLastAccessedTime()
+ TimeUnit.SECONDS.toMillis(loaded.getMaxInactiveIntervalInSeconds());
result.setLastAccessedTime(System.currentTimeMillis());
return result;
}
@Override
protected void deleteSession(final RedisSession session) {
LOG.debug(
"[RedisSessionManager] deleteSession - Deleting from Redis session id={}",
session.getClusterId());
jedisExecutor.execute(
new JedisCallback<Object>() {
@Override
public Object execute(Jedis jedis) {
return jedis.del(RedisSessionIdManager.REDIS_SESSION_KEY + session.getClusterId());
}
});
}
@Override
protected RedisSession loadSession(final String clusterId, final RedisSession current) {
long now = System.currentTimeMillis();
RedisSession loaded;
if (current == null) {
LOG.debug(
"[RedisSessionManager] loadSession - No session found in cache, loading id={}",
clusterId);
loaded = loadFromStore(clusterId, current);
} else if (current.requestStarted()) {
LOG.debug(
"[RedisSessionManager] loadSession - Existing session found in cache, loading id={}",
clusterId);
loaded = loadFromStore(clusterId, current);
} else {
loaded = current;
}
if (loaded == null) {
LOG.debug(
"[RedisSessionManager] loadSession - No session found in Redis for id={}", clusterId);
if (current != null) current.invalidate();
} else if (loaded == current) {
LOG.debug(
"[RedisSessionManager] loadSession - No change found in Redis for session id={}",
clusterId);
return loaded;
} else if (!loaded.lastNode.equals(getSessionIdManager().getWorkerName()) || current == null) {
// if the session in the database has not already expired
if (loaded.expiryTime * 1000 > now) {
// session last used on a different node, or we don't have it in memory
loaded.changeLastNode(getSessionIdManager().getWorkerName());
} else {
LOG.debug(
"[RedisSessionManager] loadSession - Loaded session has expired, id={}", clusterId);
loaded = null;
}
}
return loaded;
}
public void save(RedisSession session) {
session.saveDelta();
}