[fpc-pascal] How to save a huge XML?

[Marcos Douglas]

On Tue, Jun 18, 2013 at 9:39 AM, Antonio Fortuny
<a.fortuny at sitasoftware.lu> wrote:
>
>
> Le 18/06/2013 14:35, Marcos Douglas a écrit :
>
> Hi,
>
> I need to save some huge XML files in HD.
> Today I call WriteXMLFile(Doc, AFileName) but I have XML with 5G, 10G.. 30G...
>
> What the best way to save "line by line"?
>
> Append chuncks of lines to a TFileStream until source XML file is exhausted

But I'm using TXMLDocument class to make the XML.

For each line (log) I do this:
(doesn't matter the information in Par variable)

procedure TXMLLogger.Log;
var
  I: Integer;
  No: TDOMElement;
  Par: TParam;
begin
  No := FDoc.CreateElement('line');
  for I := 0 to FParams.Count-1 do
  begin
    Par := FParams.Items[I];
    TDOMElement(No).SetAttribute(Par.Name, Par.AsString);
  end;
  FRootNode.AppendChild(No);

  FParams.Clear;
end;

At the end, I do some like:
procedure TXMLLogger.Finish;
var
  No: TDOMElement;
begin
  No := FDoc.CreateElement('finish');
  TDOMElement(No).SetAttribute('dh', FmtDateTime(Now));
  FRootNode.AppendChild(No);
end;

And the application call:
procedure TXMLLogger.SaveToFile(const AFileName: string);
begin
  WriteXMLFile(FDoc, AFileName);
end;

So, there is a way to use TXMLDocument but save line by line more faster?

Regards,
Marcos Douglas