Hello Serg,
Did you try the dom4j library? It might be more sparingly on the
resources since it is a pure
Java library (and an excellent as well), not having the possible JNI
binding overhead.
Regards,
Helge Fredriksen
Serg_HD wrote:
> My xml-file have more than 75000 nodes and I must placed this nodes in
> ArrayList, but if count of this nodes exceeds
> 20000 I have memory overflow error.
>
> Code:
>
> public static void main(String[] args)
> {
> ArrayList<String[]> geoIp = new ArrayList<String[]>();
>
> /*one node of geoip.xml (~75000 nodes): <country ip_start="2.6.190.56"
> ip_end="2.6.190.63" num_ip_start="33996344"
> num_ip_end="33996351" flag="GB" >United Kingdom</country>*/
>
> QFile xmlFile = new QFile("geoip.xml");
> if (!xmlFile.exists()) System.out.println("file not exists");
> else
> {
> QDomDocument doc = new QDomDocument();
> doc.setContent(xmlFile);
> QDomElement docElement = doc.documentElement();
> QDomElement node = docElement.firstChildElement();
> while(!node.isNull())
> {
> String[] mas = new String[6];
> mas[0] = node.attribute("ip_start");
> mas[1] = node.attribute("ip_end");
> mas[2] = node.attribute("num_ip_start");
> mas[3] = node.attribute("num_ip_end");
> mas[4] = node.attribute("flag");
> mas[5] = node.text();
> geoIp.add(mas);
>
> /*with this line I have error of memory overflow, without it all normal*/
> node = node.nextSiblingElement();
> }
> }
> }
>
>
> This example (whithout xml) works fine, we don't have memory overflow:
>
> /*one line of geoip.txt:
> "2.6.190.56","2.6.190.63","33996344","33996351","GB","United Kingdom"*/
>
> QFile csvFile = new QFile("Presets/geoip.txt");
> if (!csvFile.open(new QIODevice.OpenMode(QIODevice.OpenModeFlag.ReadOnly)))
> return;
> ArrayList baseList = new ArrayList();
> while (!csvFile.atEnd())
> {
> String line = csvFile.readLine().toString();
> String[] mas = line.split(",");
> for (int i = 0; i < mas.length; i ++)
> {
> String str = mas[i];
> mas[i] = str.replace("\"", "");
> }
> baseList.add(mas); //baseList contains all data of file (~75000 lines)
> }
>
> "VM Options: -Xmx512m" not help too.
> I would not want to deviate from XML, advise something? Very thanks (sorry
> for my english).
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>
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