Re: Breaking up a large XML document into several smal

On 11/01/2008, Glen Mazza <glen.mazza@xxxxxxxxx> wrote:
> Hello,
>
> I searched the XSLT FAQ and could not find an answer to this.  If only
> for proof-of-concept (we may find better solutions not needing this),
> I am interested in breaking up a very large XML document into multiple
> smaller ones, and was wondering if XSLT would be a good solution for
> this.  For example, if I have the following:
>
> <order>
>    <widgets>
>        <widget.../>
>        <widget.../>
>        ... (about 100000 widgets) ...
>    </widgets>
> </order>
>
> And, as output, I would like about hundred documents of 1000 widgets
> each, with the last document having the remainder (possibly not 1000)
> widgets:
>
> <order>
>    <widgets>
>        <widget../>     // widget #1
>
>        <widget.../>    // widget #1000
>    </widgets>
> </order>
>
> <order>
>    <widgets>
>        <widget../>     // widget #1001
>
>        <widget.../>    // widget #2000
>    </widgets>
> </order>
> ...
>
> Can this be done via XSLT, or would a SAX-based solution be more
> appropriate, or?


XSLT 2.0 would be easiest and quickest to code here, but if you have
memory limitations then writing a sax based solution wouldn't to hard.

The XSLT would be something like:

<xsl:apply-templates select="/order/widgets/widget[position() mod 1000 = 1]"/>

<xsl:template match="widget">
  <xsl:result-document href="...">
    <order>
      <widgets>
        <xsl:copy-of select=".|following-sibling::widget[position() < 1000]"/>
     ...


cheers
-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/