private FetchEntry getFetchEntry(String urlString, URL url) {
ImageEntry imageEntry = new ImageEntry(urlString);
String hash =
toHexString(shaHash.get().digest(urlString.getBytes(ClientConfiguration.UTF8_CHARSET)));
String cacheFileName = getCacheFileName(hash, urlString);
imageEntry.cacheFile = Paths.get(cacheFileName);
// from url
FetchEntry fetchEntry = new FetchEntry(imageEntry);
fetchEntry.url = url;
// from cache
Path cachePath = Paths.get(cacheFileName);
if (Files.exists(cachePath)) {
FetchEntry cacheFetchEntry = new FetchEntry(imageEntry);
try {
cacheFetchEntry.url = cachePath.toUri().toURL();
} catch (MalformedURLException e) {
throw new AssertionError(e);
}
cacheFetchEntry.setAlternateEntry(fetchEntry);
fetchEntry = cacheFetchEntry;
} else {
logger.debug("Cache miss: {}", urlString);
}
return fetchEntry;
}
