Subject: Re: [xsl] Random selection From: "Dimitre Novatchev" <dnovatchev@xxxxxxxxx> Date: Sun, 30 Nov 2008 09:02:52 -0800 |
On Sun, Nov 30, 2008 at 8:38 AM, Mukul Gandhi <gandhi.mukul@xxxxxxxxx> wrote: > If you are working in Java environment, you could use the Java class > 'Random' for random number support. > Hi Mukul, What about people, who use C#, Python, VB, C++, ..., etc? I strongly believe that recommending a non-portable solution on this list when a known, 100% XSLT, portable one exists, should be discouraged. -- Cheers, Dimitre Novatchev --------------------------------------- Truly great madness cannot be achieved without significant intelligence. --------------------------------------- To invent, you need a good imagination and a pile of junk ------------------------------------- Never fight an inanimate object ------------------------------------- You've achieved success in your field when you don't know whether what you're doing is work or play > (http://java.sun.com/javase/6/docs/api/java/util/Random.html). > > Supposing your input XML is (this is just an example for illustration. > your real XML could be different.): > > <images> > <image val="a.jpg" /> > <image val="b.jpg" /> > <image val="c.jpg" /> > <image val="d.jpg" /> > <image val="e.jpg" /> > <image val="f.jpg" /> > </images> > > The stylesheet could be: > > <?xml version="1.0" encoding="UTF-8"?> > <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" > xmlns:java="http://xml.apache.org/xalan/java" > exclude-result-prefixes="java" > version="1.0"> > > <xsl:output method="html" /> > > <xsl:template match="/"> > <xsl:variable name="max" select="count(images/image)" /> > <xsl:variable name="random" select="java:java.util.Random.new()"/> > <xsl:variable name="x" select="java:nextInt($random, $max) + 1" /> > <!-- this is the random number --> > <html> > <head> > <title/> > </head> > <body> > <img src="{images/image[$x]/@val}" /> > </body> > </html> > </xsl:template> > > </xsl:stylesheet> > > Here I have used the Java extension mechanism provided by Xalan. > > On Sun, Nov 30, 2008 at 8:43 PM, sudheshna iyer <sudheshnaiyer@xxxxxxxxx> wrote: >> Here is the more clear explanation of what I am looking for: >> >> I need to select an image from pool of images randomly and produce <img src> element of html. >> >> This xsl should read the image tags from xml and based on the number of image tag nodes in the xml, it >> should display random image by producing <img src> element of html. >> >> Thank you for your help. > > > > -- > Regards, > Mukul Gandhi
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