/** Removes revoked and invalid photo attributes from a photo attribute array. */
private PhotoAttribute[] filterArray(PhotoAttribute[] original) {
List<PhotoAttribute> filtered = new ArrayList<>();
for (PhotoAttribute att : original) {
if (!att.isRevokedOrInvalid()) {
filtered.add(att);
}
}
return filtered.toArray(new PhotoAttribute[filtered.size()]);
}
/**
* Warning: this method uses the unextended position of the cursor!
*
* @param cursor A cursor, already moved to the correct position.
* @return The array of photo attributes produced from the attribute data at that cursor position.
*/
public PhotoAttribute[] getItemArrayAtUnextendedPosition(Cursor cursor) {
int rank = cursor.getInt(INDEX_RANK);
PhotoAttribute[] attributes = mPhotoAttributeCache.get(rank);
if (attributes != null) {
Log.d(Constants.TAG, "The requested photo attribute array is cached!");
return attributes;
}
Log.d(Constants.TAG, "The requested photo attribute array is not cached!");
try {
byte[] data = cursor.getBlob(INDEX_ATTRIBUTE_DATA);
int status = getStatus(cursor);
attributes = PhotoAttribute.fromAttributeData(data, status, mContext);
if (!mShowRevokedItems) {
attributes = filterArray(attributes);
}
mPhotoAttributeCache.put(rank, attributes);
return attributes;
} catch (IOException e) {
Log.e(Constants.TAG, "Could not read photo attribute subpacket data", e);
return null;
}
}