/**
* Copies the contents of this byte source to the given {@code ByteSink}.
*
* @throws IOException if an I/O error occurs in the process of reading from this source or
* writing to {@code sink}
*/
public long copyTo(ByteSink sink) throws IOException {
checkNotNull(sink);
Closer closer = Closer.create();
try {
InputStream in = closer.register(openStream());
OutputStream out = closer.register(sink.openStream());
return ByteStreams.copy(in, out);
} catch (Throwable e) {
throw closer.rethrow(e);
} finally {
closer.close();
}
}
