Another simple method. No need to write a java class.
1. You have to declare this namespace xmlns:file="java.io.File"
2. This is the input format: <file name="test.jpg"/>
<xsl:template match=file">
<xsl:variable name="file" select="resolve-uri(@name, base-uri(.))"
as="xs:string"/>
<xsl:if test="not(file:exists(file:new($file)))">
<xsl:value-of select="@name"/><xsl:message>file missing /
incorrect name</xsl:message>
</xsl:if>
</xsl:template>
Regards,
Ganesh
On Wed, Jun 24, 2009 at 3:27 AM, Michael Kay<mike(_at_)saxonica(_dot_)com>
wrote:
It's always useful to use the -TJ option when debugging this kind of
problem.
I think your problem is that you used the -jar option on the command line.
This causes the classpath to be ignored. You need to use the
java -cp ... net.sf.saxon.Transform
way of invoking the transformation.
I'm afraid this is an elephant trap that many people fall into. However
prominently I put the warnings in the documentation, they still fall in.
Incidentally, questions about specific XSLT products are best asked on a
product specific list. For Saxon that's the saxon-help list which you can
find via the saxon project on SourceForge.
Regards,
Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay
-----Original Message-----
From: Blaine McNutt (rbmcnutt) [mailto:rbmcnutt(_at_)cisco(_dot_)com]
Sent: 23 June 2009 20:20
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Calling a Java extension from XSLT using Saxon B
I am not a Java programmer, but I would like to use an
extension to check for the existence of an image file
referenced by an XML file (as I believe that is the only way
to check for the existence of a non-XML file). This topic has
been discussed a lot on various aliases, and despite my best
efforts, I'm unable to unravel the mystery.
I've included what I believe to be relevant information.
Error Message:
--------------
Error at xsl:value-of on line 15 column 48 of
nxs-test-image-exists.xsl:
XPST0017: XPath syntax error at char 20 on line 15 in
{nxs:fileExist(@osrc)}:
Cannot find a matching 1-argument function named
{java:FileExist}fileExist() Failed to compile stylesheet. 1
error detected.
Saxon-B 9.1.7 J stored in xmlsrc/xTools/saxon9.
-----------------------------------------------
Java program (compiled and the FileExist.class file stored in
xmlsrc/xTools/saxon9/classes)
/* Source:
http://p2p.wrox.com/xslt/71563-xslt-check-if-directory-exist.html */
import java.io.File;
public class FileExist {
private static boolean exist;
public static boolean fileExist(String myfile) {
exist = new File(myfile).exists();
return exist;
}
}
XML Snippet for img element
---------------------------
...
<img osrc="../../images/1982.jpg" />
...
XSLT
------
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:nxs="java:FileExist">
<xsl:output method="xml"/>
<xsl:template match="/">
<xsl:apply-templates /> </xsl:template>
<xsl:template match="img">
<xsl:value-of select="nxs:fileExist(@osrc)"
/> </xsl:template>
</xsl:stylesheet>
Korn Shell script/command line call:
------------------------------------
# define saxon command line
saxon="java -classpath xTools/saxon9/classes; -jar -Xmx1G
xTools/saxon9/saxon9.jar -tree:tiny -dtd:off -ext:on "
# call transform
$saxon deliverables/help/helpFile.xml
xslt/nxs-test-image-exists.xsl > imageerror.xml
Thank you for any insights you might offer.
Blaine
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