public static byte[] getBytesFromInputStream(
			InputStream inputStream) throws IOException {
		ByteArrayOutputStream buffer = new ByteArrayOutputStream();

		int nRead;
		byte[] data = new byte[4096];

		while ((nRead = inputStream.read(data, 0, data.length)) != -1) {
		  buffer.write(data, 0, nRead);
		}

		buffer.flush();

		return buffer.toByteArray();
	}