supplying runtime parameter

[sp]

the xml file i used
<catalog>
<cd>
<title year="1990">Emp ire Burlesque</title>
<artist>Bob Dylan</artist>
<price>10.90</price>
</cd>
<cd>
<title year="1995">Hid e your heart</title>
<artist>Bonni e Tyler</artist>
<price>9.90</price>
</cd>
<cd>
<title year="1995">Gre atest Hits</title>
<artist>Dolly Parton</artist>
<price>9.90</price>
</cd>
<cd>
<title year="1995">Sti ll got the blues</title>
<artist>Gary Moore</artist>
<price>10.20</price>
</cd>
<cd>
<title year="1998">Ero s</title>
<artist>Eros Ramazzotti</artist>
<price>9.90</price>
</cd>
<cd>
<title year="1998">One night only</title>
<artist>Bee Gees</artist>
<price>10.90</price>
</cd>
</catalog>
the output expected
<cd>
<title year="1990">Emp ire Burlesque</title>
<artist>Bob Dylan</artist>
<price>10.90</price>
</cd>
the xsl used
<?xml version="1.0"?>
<xsl:styleshe et version="1.0"
xmlns:xsl="http ://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" />
<xsl:template match="/">
<xsl:for-each select="/catalog/cd[title[@year='1990']]">
<catalog>
<xsl:copy-of select="." />
</catalog>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

in the above xsl i am filtering the xml by hardcoding the value of year
is there any way to pass the filtering parameter as a runtime argument
( i am working in C++ )

by using the transformNode function i am abel to apply the filtering in
XSL but how can i pass the filter parameter runtime

could anyone help in this issue

thanks
praveen

[Martin Honnen]

sp wrote:

<xsl:for-each select="/catalog/cd[title[@year='1990']]"> in the above xsl i am filtering the xml by hardcoding the value of year
is there any way to pass the filtering parameter as a runtime argument
Yes, your stylesheet can declare a global parameter
<xsl:param name="inputYear " />
then you need to check the API documentation of your XSLT processor on
how to set that parameter before running a transformation e.g. there
will a method alike
xsltProcessor.a ddParameter('in putYear', '2000')
( i am working in C++ )

by using the transformNode function i am abel to apply the filtering in
XSL but how can i pass the filter parameter runtime

Which processor are you using, some version of Microsoft MSXML?
API docs are here:
<http://msdn.microsoft. com/library/default.asp?url =/library/en-us/xmlsdk/html/9ddcd728-2646-494a-8fa4-3b68e8c032b7.as p>
Note however that your example does not need a stylesheet at all, a
simple XPath expression evaluation (e.g. selectNodes, selectSingleNod e
with MSXML) would give you the result as you do not seem to want to
create any nodes, you simple select one cd element and that can be done
with pure XPath without using XSLT e.g.:
xmlDocument.set Property('Selec tionLanguage', 'XPath');
var someInputYear = '2000';
var cdElement = xmlDocument.sel ectSingleNode(
'/catalog/cd[title[@year = "' + someInputYear + '"]]');

--

Martin Honnen
http://JavaScript.FAQTs.com/

[gimme_this_gimme_that]

This you might find this java utility class helpful ....
I use it to dynamically add a xsl:variable to an xsl transform.
package acme.com;

import java.io.ByteArr ayInputStream;
import java.io.IOExcep tion;
import java.io.InputSt ream;
import java.util.Itera tor;
import java.util.Map;

import javax.xml.parse rs.DocumentBuil derFactory;
import javax.xml.parse rs.FactoryConfi gurationError;
import javax.xml.parse rs.ParserConfig urationExceptio n;

import org.apache.comm ons.logging.Log ;
import org.apache.comm ons.logging.Log Factory;
import org.w3c.dom.Att r;
import org.w3c.dom.Doc ument;
import org.w3c.dom.Nam edNodeMap;
import org.w3c.dom.Nod e;
import org.w3c.dom.Tex t;
import org.xml.sax.SAX Exception;

public class XSLUtils {
public static InputStream addParameters(I nputStream xsl, Map
parameters) {
Document document = null;
try {
document =
DocumentBuilder Factory.newInst ance().newDocum entBuilder().pa rse(xsl);

Node root = document.getDoc umentElement();

Iterator iterator = parameters.keyS et().iterator() ;
while(iterator != null && iterator.hasNex t()) {
String name = (String)iterato r.next();
String value = (String)paramet ers.get(name);

Node element = document.create Element("xsl:va riable");
NamedNodeMap attributes = element.getAttr ibutes();
Attr nameAttr = document.create Attribute("name ");
nameAttr.setNod eValue(name);
attributes.setN amedItem(nameAt tr);

Text textNode = document.create TextNode(value) ;
element.appendC hild(textNode);

root.insertBefo re(element, root.getFirstCh ild());
}

// now convert document to an InputStream
return new
ByteArrayInputS tream(XMLTransf ormer.transform (document,
false).getBytes ());
} catch(SAXExcept ion e) {
LOG.error(e);
} catch(IOExcepti on e) {
LOG.error(e);
} catch(ParserCon figurationExcep tion e) {
LOG.error(e);
} catch(FactoryCo nfigurationErro r e) {
LOG.error(e);
} catch(XMLTransf ormException e) {
LOG.error(e);
} finally {
StreamUtils.clo se(xsl);
}

return null;
}
}

Then to use it ...

StringBuffer sb = new StringBuffer();
sb.append("<?xm l version=\"1.0\"
encoding=\"UTF-8\"?>");
sb.append(xml.g enerateXml()); // result of
xml.generateXml () is a string of XML
xmlStream = new
ByteArrayInputS tream(sb.toStri ng().getBytes(" UTF-8"));

InputStream xslStream =
getServletConte xt().getResourc eAsStream("/WEB-INF/xsl/joborder-email-template.xsl");
xslStream = XSLUtils.addPar ameters(xslStre am, params); //
xsl:variables added here.

// apply transform to XML to generate HTML
String html = DoWhatYouHaveTo To.transform(xm lStream, xslStream);

// add xsl variable assignments
xslStream = XSLUtils.addPar ameters(xslStre am, params);

// apply transform to XML to generate HTML
String html = XSLTransformer. transform(xmlSt ream,
xslStream);

[Philippe Poulard]

hi,

you could use RefleX for this purpose :
http://reflex.gforge.inria.fr/

a very simple script can be done like this :

<?xml version="1.0" encoding="iso-8859-1"?>
<xcl:active-sheet xmlns:xcl="http ://www.inria.fr/xml/active-tags/xcl">
<xcl:transfor m output="/path/to/file.html"
source="/path/to/file.xml" stylesheet="/path/to/stylesheet.xsl" >
<xcl:param name="inputYear " value="1990"/>
</xcl:transform>
</xcl:active-sheet>

inside your stylesheet, just declare the parameter :
<xsl:param name="inputYear "/>
and change the hard-coded value where expected :
<xsl:for-each select="/catalog/cd[title[@year=$inputYea r]]">

notice that for this example, you don't need a stylesheet, you can get
directly the output like this :
<?xml version="1.0" encoding="iso-8859-1"?>
<xcl:active-sheet xmlns:xcl="http ://www.inria.fr/xml/active-tags/xcl">
<xcl:parse name="myCatalog " source="/path/to/file.xml"/>
<xcl:transfor m output="/path/to/file.html" source="{
$myCatalog/catalog/cd[title/@year = '1990'] }"/>
</xcl:active-sheet>

the difference is that there is no stylesheet specified, so it is a
simple copy of the node selected

notice that such scripts could be launched in batch mode as well as in
Web application, and you can of course pass parameters from the
environment (batch) or from the URL query string (HTTP)

have a look at the RefleX web site

sp wrote:

the xml file i used
<catalog>
<cd>
<title year="1990">Emp ire Burlesque</title>
<artist>Bob Dylan</artist>
<price>10.90</price>
</cd>
<cd>
<title year="1995">Hid e your heart</title>
<artist>Bonni e Tyler</artist>
<price>9.90</price>
</cd>
<cd>
<title year="1995">Gre atest Hits</title>
<artist>Dolly Parton</artist>
<price>9.90</price>
</cd>
<cd>
<title year="1995">Sti ll got the blues</title>
<artist>Gary Moore</artist>
<price>10.20</price>
</cd>
<cd>
<title year="1998">Ero s</title>
<artist>Eros Ramazzotti</artist>
<price>9.90</price>
</cd>
<cd>
<title year="1998">One night only</title>
<artist>Bee Gees</artist>
<price>10.90</price>
</cd>
</catalog>
the output expected
<cd>
<title year="1990">Emp ire Burlesque</title>
<artist>Bob Dylan</artist>
<price>10.90</price>
</cd>
the xsl used
<?xml version="1.0"?>
<xsl:styleshe et version="1.0"
xmlns:xsl="http ://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" />
<xsl:template match="/">
<xsl:for-each select="/catalog/cd[title[@year='1990']]">
<catalog>
<xsl:copy-of select="." />
</catalog>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

in the above xsl i am filtering the xml by hardcoding the value of year
is there any way to pass the filtering parameter as a runtime argument
( i am working in C++ )

by using the transformNode function i am abel to apply the filtering in
XSL but how can i pass the filter parameter runtime

could anyone help in this issue

thanks
praveen

--
Cordialement,

///
(. .)
--------ooO--(_)--Ooo--------
| Philippe Poulard |
-----------------------------
http://reflex.gforge.inria.fr/
Have the RefleX !