RE: Measure the length of an XML document in bytes

Hello Mukul,

Very nice example.  Indeed I could try to convince the project manager
with this solution. 

However we are right now using just the built-in XSLT processor of
XMLSpy 2004. And I have to present them the demo with that.

What do I have to do in order to use the class with XMLSpy?  I guess the
namespace below has to be changed, right?

xmlns:my-class="xalan://MyPackage.Utility" 
...
File Size : <xsl:value-of select="my-class:getFileSize($filename)" />
bytes


Many Thanks,
Houman


-----Original Message-----
From: Mukul Gandhi [mailto:gandhi(_dot_)mukul(_at_)gmail(_dot_)com] 
Sent: 05 August 2005 05:13
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] Measure the length of an XML document in bytes

Hi Houman,
   I just finished writing a Java extension function which determines
file size in bytes (as reported by Windows). Below is the Java code,
XSLT stylesheet and Xalan command line. With this stylesheet, we can
pass the file name from command line.

Java file
-----------
package MyPackage;

import java.io.File;

public class Utility {

  public static long getFileSize(String filename) {
    File file = new File(filename);
    return file.length();
  }
}

XSLT stylesheet
-----------------------
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" 
                xmlns:my-class="xalan://MyPackage.Utility" 
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
        
<xsl:output method="text" />

<xsl:param name="filename" />

<xsl:template match="/">
  File Size : <xsl:value-of select="my-class:getFileSize($filename)" />
bytes
</xsl:template>
        
</xsl:stylesheet>

Xalan Command Line
------------------------------
C:\xml\xsleg\xslt>java org.apache.xalan.xslt.Process -in file_size.xsl
-xsl file
_size.xsl -PARAM filename node.xml

  File Size : 111 bytes

But sorry, if this is not what you want. Just thought of sharing the
code.  

Regards,
Mukul

On 8/4/05, Khorasani, Houman <houman_khorasani(_at_)csgsystems(_dot_)com> wrote:

Hi Mukul,

Interesting idea. However I am stuck between two middlewares.  I have

to

use plain XSLT's. There won't be any java involved.

Actually, I read the customers req. and it says lengths of the
characters are good enough. So I don't need to know the length in

bytes.


So if I would use string-length() like this

<xsl:value-of select="string-length(*)"/>

I would get just the length of the first value.
I wish I could use it like that:

<xsl:value-of select="string-length(<xsl:copy-of select="*"/>)"/>

But this is not possible.
Any ideas how to count the length of a document character by

character?


Many thanks,
Houman


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