public synchronized void clean() {
for (Iterator<TimedCacheEntry<BufferedImage>> iterator = entries.iterator();
iterator.hasNext(); ) {
TimedCacheEntry<BufferedImage> entry = iterator.next();
if (entry.isExpired()) iterator.remove();
}
}
public synchronized BufferedImage acquire(Dimension dimension) {
TimedCacheEntry<BufferedImage> match = null;
for (TimedCacheEntry<BufferedImage> entry : entries) {
BufferedImage image = entry.value();
if (image != null
&& image.getWidth() == dimension.width
&& image.getHeight() == dimension.height) {
match = entry;
break;
}
}
if (match != null) {
entries.remove(match);
return match.value();
} else {
return allocateNewBufferedImage(dimension, 3);
}
}