Question

I receive 360K of data from a server which I transform into a XML file on my phone. The final file is about 1.3 Mb. Later, I try to read this file and on my GT-S5660 and this process runs for 5(!) hours. Although it produces a correct result I wonder if there is a way to optimize this process. I have an iphone version of it, and there the process completes in less than 5 seconds.
Is this a normal behaviour? If so, would SQLIte be an alternative?
Here’s my code:

FileInputStream fileos;
    try {
        fileos = openFileInput("TarifsCache" + Constants.VERSION + ".txt");
    } catch (FileNotFoundException e) {
        return;
    }
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    DocumentBuilder db;
    try {
        db = dbf.newDocumentBuilder();
    } catch (ParserConfigurationException e) {
        return;
    }
    Document doc;
    try {
        doc = db.parse(new InputSource(fileos));
    } catch (SAXException e) {
        return;
    } catch (IOException e) {
        return;
    }
    doc.getDocumentElement().normalize();

    for (int i = 0;; i++) {

        NodeList nodeList = doc.getElementsByTagName("Cache" + i);

        Node node = nodeList.item(0);
        if (node == null)
            break;
        Element fstElmnt = (Element) node;

        NodeList nameList = fstElmnt.getElementsByTagName("area_ref");
        Element nameElement = (Element) nameList.item(0);
        nameList = nameElement.getChildNodes();
        tarifread.area_ref = Integer.parseInt(((Node) nameList.item(0))
                .getNodeValue());

followed by plenty of other element retrievals.

Answer 1

Try to use advance parser parser like SAX and dnt use STAX as its not support in android .