public static long getCacheSizeInBytes() {
long totalSize = 0;
Map<String, PictureTilingCacheInfo> cache = PictureTilingComponent.getCache();
for (String key : cache.keySet()) {
PictureTilingCacheInfo cacheEntry = cache.get(key);
totalSize += cacheEntry.getDiskSpaceUsageInBytes();
}
return totalSize;
}
public static void doGC(long deltaInKB) {
gcRuns += 1;
Map<String, PictureTilingCacheInfo> cache = PictureTilingComponent.getCache();
Map<Date, String> sortingMap = new HashMap<Date, String>();
for (String key : cache.keySet()) {
PictureTilingCacheInfo cacheEntry = cache.get(key);
sortingMap.put(cacheEntry.getLastAccessedTime(), key);
}
List<Date> accesTimeList = new ArrayList<Date>();
accesTimeList.addAll(sortingMap.keySet());
Collections.sort(accesTimeList);
long deletedVolume = 0;
for (Date accessDate : accesTimeList) {
PictureTilingCacheInfo cacheEntry = cache.get(sortingMap.get(accessDate));
long deletePotential = cacheEntry.getDiskSpaceUsageInBytes() / (1024);
if (deletePotential > deltaInKB - deletedVolume) {
cacheEntry.partialCleanUp(deltaInKB - deletedVolume + 1);
return;
} else {
deletedVolume += deletePotential;
cacheEntry.cleanUp();
cache.remove(accessDate);
}
if (deletedVolume > deltaInKB) break;
}
}
