public synchronized String getToken(FacesContext context) {
if (_token != null) return _token;
// Don't need a token when nothing's in the map, and we
// don't have a parent
if (isEmpty() && (_sharedData._children == null) && (_sharedData._parent == null)) return null;
String parentToken;
TokenCache cache;
if (_sharedData._parent != null) {
parentToken = _sharedData._parent.getToken(context);
cache = _sharedData._parent._getTokenCache();
} else {
parentToken = null;
cache = _getRootTokenCache(context, _sharedData._lifetime);
}
Map<String, Object> store = _createMapToStore(context, parentToken);
String token = cache.addNewEntry(this, store);
if (parentToken != null) token = parentToken + TokenCache.SEPARATOR_CHAR + token;
_token = token;
// With a new token, there cannot be any shared children
// with a prior request.
if (_sharedData._children != null) {
// =-=AEW NEED TO CLONE SHARED DATA
_LOG.fine("Discarding child PageFlowScopes; new token is {0}", token);
_sharedData._children = null;
}
return _token;
}
private static TokenCache _getRootTokenCache(FacesContext context, int lifetime) {
return TokenCache.getTokenCacheFromSession(
context.getExternalContext(), _PAGE_FLOW_SCOPE_CACHE, true, lifetime);
}