String encoding = "ISO-8859-1";
BufferedReader in = new BufferedReader(new InputStreamReader(is, encoding));
BufferedReader in_1 = new BufferedReader(new InputStreamReader(is_1, encoding));
XMLOutputFactory factory = XMLOutputFactory.newInstance();
XMLStreamWriter ch = factory.createXMLStreamWriter(os, "utf-8");
String freq = get_FREQ_fromSDMX(sdmxFilePath);
DataPage.convert(ch, id, in, in_1, freq, id,logFilePath);