Fw: Help using the Xalan mailing lists

[Henry Zongaro <zo...@ca.ibm.com>]

[Forwarding for Higino Silva, who is having difficulty posting to 
xalan-j-users.]

Hi, Higino.

     I don't see anything wrong with your program.  I do not believe that 
this is a known problem.

     Are you able to reproduce the failure if you do not use the 
incremental processing feature of Xalan-j?  Are you able to reproduce it 
using the org.apache.xalan.xslt.Process command?  200000 lines doesn't 
sound like it should consume 1.34 GB of memory, but it's hard to say for 
certain without knowing how many elements, attributes and character data 
are packed into those 200000 lines.

Thanks,

Henry
------------------------------------------------------------------
Henry Zongaro      Xalan development
IBM SWS Toronto Lab   T/L 969-6044;  Phone +1 905 413-6044
mailto:zongaro@ca.ibm.com
----- Forwarded by Henry Zongaro/Toronto/IBM on 2005-05-02 01:39 PM -----

Higino Silva, Engº <hs...@tmn.pt> 
2005-05-02 11:59 AM

To
Henry Zongaro/Toronto/IBM@IBMCA
cc

Subject
Help using the Xalan mailing lists




Hi, 
I'm using Xalan to convert big XML files. Following is a simplified 
version of the code used: 
                        StreamResult strResult = null; // Shut up compiler 

                        if( conv.outFileName == null ) 
                                strResult = new StreamResult(System.out); 
                        else 
                                strResult = new StreamResult(new 
File(conv.outFileName)); 
                        strResult.setSystemId(conv.outFileName); 
                        // Use a Transformer for output 
                        // Use the TransformerFactory to instantiate a 
Transformer that will work with  
                        // the stylesheet you specify. This method call 
also processes the stylesheet 
                        // into a compiled Templates object. 
                        TransformerFactory tFactory = 
TransformerFactory.newInstance(); 
                        tFactory.setAttribute("
http://xml.apache.org/xalan/features/incremental", 
java.lang.Boolean.TRUE);
                        Transformer transformer = 
tFactory.newTransformer(new StreamSource(xslFileName)); 
                        BufferedReader br = new BufferedReader(new 
FileReader(conv.inputFileName)); 
                        InputSource inputSource = new InputSource(br); 
                        XMLFilereader gsmReader = new UBEEFileReader(); 

                        // Use the parser as a SAX source for input 
                        SAXSource source = new SAXSource(gsmReader, 
inputSource); 
                        transformer.transform(source, strResult); 
When I'm aplying this code to tranform an input file with let's say 
200,000 lines the process instance starts comsuming arround 64M of memory 
and keeps increasing to 1.34GB untill is crashes with out of memory.
Can someone explain what I'm doing wrong or how can I prevent this memory 
creep? 


Besta regards 
Higino Silva