byte[] fileBatchBytes = null;
reader = new JSONReader(new InputStreamReader(is));
reader.startArray();
while (reader.hasNext()) {
if (rowBatchBytes == null) {
rowBatchBytes = reader.readObject(byte[].class);
} else if (fileBatchBytes == null) {
fileBatchBytes = reader.readObject(byte[].class);
} else {
throw new Exception("archive data json parse failed!");
}