private void removeMarkupWhereBaseMarkupIsNoLongerInTheCache() {
// Repeat until all dependent resources have been removed (count == 0)
int count = 1;
while (count > 0) {
// Reset prior to next round
count = 0;
// Iterate though all entries of the cache
Iterator<Markup> iter = markupCache.getValues().iterator();
while (iter.hasNext()) {
Markup markup = iter.next();
if ((markup != null) && (markup != Markup.NO_MARKUP)) {
// Check if the markup associated with key has a base markup. And if yes, test
// if that is cached. If the base markup has been removed, than remove the
// derived markup as well.
MarkupResourceStream resourceStream = markup.getMarkupResourceStream();
if (resourceStream != null) {
resourceStream = resourceStream.getBaseMarkupResourceStream();
}
// Is the base markup available in the cache?
if ((resourceStream != null) && !isMarkupCached(resourceStream)) {
iter.remove();
count++;
if (log.isDebugEnabled()) {
log.debug("Removed derived markup from cache: " + markup.getMarkupResourceStream());
}
}
}
}
}
}
