@Override
    public void cleanup() {
        if (stream != null) {
            try {
                stream.close();
            } catch (IOException e) {
                // Ignore
            }
        }
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
A DataFetcher that retrieves an {@link InputStream} for a Url.
core/src/main/java/com/bumptech/glide/load/data/HttpUrlFetcher.java