@Override
public DirectoryListing getListing(String src, byte[] startAfter,
boolean needLocation) throws AccessControlException,
FileNotFoundException, UnresolvedLinkException, IOException {
GetListingRequestProto req = GetListingRequestProto.newBuilder()
.setSrc(src)
.setStartAfter(ByteString.copyFrom(startAfter))
.setNeedLocation(needLocation).build();
try {
GetListingResponseProto result = rpcProxy.getListing(null, req);