* the success or failure information in the asset. Returns the asset
* upon success, and null upon failure.
*/
private Asset loadAssetFromCache(Asset asset, String originalChecksum) {
AssetURI assetURI = asset.getAssetURI();
String uriString = assetURI.toExternalForm();
String checksum = asset.getChecksum();
// Attempt to load the asset from the cache. If it fails, then
// we set the failure information and notify any listeners and
// return.