/**
* {@inheritDoc}
*
* <p>Overridden to make it visible to other classes in this package.
*/
@Override
protected void unregisterSession(Endpoint endpoint, WsSession wsSession) {
if (wsSession.getUserPrincipal() != null && wsSession.getHttpSessionId() != null) {
unregisterAuthenticatedSession(wsSession, wsSession.getHttpSessionId());
}
super.unregisterSession(endpoint, wsSession);
}
/**
* {@inheritDoc}
*
* <p>Overridden to make it visible to other classes in this package.
*/
@Override
protected void registerSession(Endpoint endpoint, WsSession wsSession) {
super.registerSession(endpoint, wsSession);
if (wsSession.isOpen()
&& wsSession.getUserPrincipal() != null
&& wsSession.getHttpSessionId() != null) {
registerAuthenticatedSession(wsSession, wsSession.getHttpSessionId());
}
}
@Override
public void destroy() {
shutdownExecutor();
super.destroy();
// If the executor hasn't fully shutdown it won't be possible to
// destroy this thread group as there will still be threads running.
// Mark the thread group as daemon one, so that it destroys itself
// when thread count reaches zero.
// Synchronization on threadGroup is needed, as there is a race between
// destroy() call from termination of the last thread in thread group
// marked as daemon versus the explicit destroy() call.
int threadCount = threadGroup.activeCount();
boolean success = false;
try {
while (true) {
int oldThreadCount = threadCount;
synchronized (threadGroup) {
if (threadCount > 0) {
Thread.yield();
threadCount = threadGroup.activeCount();
}
if (threadCount > 0 && threadCount != oldThreadCount) {
// Value not stabilized. Retry.
continue;
}
if (threadCount > 0) {
threadGroup.setDaemon(true);
} else {
threadGroup.destroy();
success = true;
}
break;
}
}
} catch (IllegalThreadStateException exception) {
// Fall-through
}
if (!success) {
log.warn(
sm.getString(
"serverContainer.threadGroupNotDestroyed",
threadGroup.getName(),
Integer.valueOf(threadCount)));
}
}