/**
* Is invoked for the backup of a non-sticky session that was not accessed for the current
* request.
*/
protected void onBackupWithoutLoadedSession(
@Nonnull final String sessionId,
@Nonnull final String requestId,
@Nonnull final BackupSessionService backupSessionService) {
if (!_sessionIdFormat.isValid(sessionId)) {
return;
}
try {
final long start = System.currentTimeMillis();
final String validityKey = _sessionIdFormat.createValidityInfoKeyName(sessionId);
final SessionValidityInfo validityInfo = loadSessionValidityInfoForValidityKey(validityKey);
if (validityInfo == null) {
_log.warn("Found no validity info for session id " + sessionId);
return;
}
final int maxInactiveInterval = validityInfo.getMaxInactiveInterval();
final byte[] validityData =
encode(maxInactiveInterval, System.currentTimeMillis(), System.currentTimeMillis());
// fix for #88, along with the change in session.getMemcachedExpirationTimeToSet
final int expiration = maxInactiveInterval <= 0 ? 0 : maxInactiveInterval;
final Future<Boolean> validityResult =
_memcached.set(validityKey, toMemcachedExpiration(expiration), validityData);
if (!_manager.isSessionBackupAsync()) {
validityResult.get(_manager.getSessionBackupTimeout(), TimeUnit.MILLISECONDS);
}
/*
* - ping session
* - ping session backup
* - save validity backup
*/
final Callable<?> backupSessionTask =
new OnBackupWithoutLoadedSessionTask(
sessionId, _storeSecondaryBackup, validityKey, validityData, maxInactiveInterval);
_executor.submit(backupSessionTask);
if (_log.isDebugEnabled()) {
_log.debug("Stored session validity info for session " + sessionId);
}
_stats.registerSince(NON_STICKY_ON_BACKUP_WITHOUT_LOADED_SESSION, start);
} catch (final Throwable e) {
_log.warn("An error when trying to load/update validity info.", e);
}
}
/**
* Invoked after a non-sticky session is loaded from memcached, can be used to update some session
* fields based on separately stored information (e.g. session validity info).
*
* @param lockStatus the {@link LockStatus} that was returned from {@link
* #onBeforeLoadFromMemcached(String)}.
*/
protected void onAfterLoadFromMemcached(
@Nonnull final MemcachedBackupSession session, @Nullable final LockStatus lockStatus) {
session.setLockStatus(lockStatus);
final long start = System.currentTimeMillis();
final SessionValidityInfo info = loadSessionValidityInfo(session.getIdInternal());
if (info != null) {
_stats.registerSince(NON_STICKY_AFTER_LOAD_FROM_MEMCACHED, start);
session.setLastAccessedTimeInternal(info.getLastAccessedTime());
session.setThisAccessedTimeInternal(info.getThisAccessedTime());
} else {
_log.warn("No validity info available for session " + session.getIdInternal());
}
}