This is the mail archive of the
xsl-list@mulberrytech.com
mailing list .
RE: A community project
- From: "Ivan Pedruzzi" <ivan at exceloncorp dot com>
- To: <xsl-list at lists dot mulberrytech dot com>
- Date: Wed, 30 Jan 2002 22:15:58 -0500
- Subject: RE: [xsl] A community project
- Reply-to: xsl-list at lists dot mulberrytech dot com
May be this servlet from xalan's examples can help you
package servlet;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.Enumeration;
import java.net.URL;
import org.xml.sax.*;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import javax.xml.transform.stream.StreamResult;
public class XSLTServletWithParams extends HttpServlet {
public void init(ServletConfig config) throws ServletException
{
super.init(config);
}
public void doGet (HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
{
// The servlet returns HTML; charset is UTF8.
// See ApplyXSLT.getContentType() to get output properties from
<xsl:output>.
response.setContentType("text/html; charset=UTF-8");
PrintWriter out = response.getWriter();
try
{
TransformerFactory tFactory = TransformerFactory.newInstance();
// Get params from URL.
String xml = getRequestParam(request, "URL");
String xsl = getRequestParam(request, "xslURL");
Source xmlSource = null;
Source xslSource = null;
Transformer transformer = null;
// Get the XML input document.
if (xml != null && xml.length()> 0)
xmlSource = new StreamSource(new URL(xml).openStream());
// Get the stylesheet.
if (xsl != null && xsl.length()> 0)
xslSource = new StreamSource(new URL(xsl).openStream());
if (xmlSource != null) // We have an XML input document.
{
if (xslSource == null) // If no stylesheet, look for PI in XML
input document.
{
String media= null , title = null, charset = null;
xslSource = tFactory.getAssociatedStylesheet(xmlSource,media,
title, charset);
}
if (xslSource != null) // Now do we have a stylesheet?
{
transformer = tFactory.newTransformer(xslSource);
setParameters(transformer, request); // Set stylesheet params.
// Perform the transformation.
transformer.transform(xmlSource, new StreamResult(out));
}
else
out.write("No Stylesheet!");
}
else
out.write("No XML Input Document!");
}
catch (Exception e)
{
e.printStackTrace(out);
}
out.close();
}
// Get parameters from the request URL.
String getRequestParam(HttpServletRequest request, String param)
{
if (request != null)
{
String paramVal = request.getParameter(param);
return paramVal;
}
return null;
}
// Set stylesheet parameters from the request URL.
void setParameters(Transformer transformer, HttpServletRequest
request)
{
Enumeration paramNames = request.getParameterNames();
while (paramNames.hasMoreElements())
{
String paramName = (String) paramNames.nextElement();
try
{
String paramVal = request.getParameter(paramName);
if (paramVal != null)
transformer.setParameter(paramName, paramVal);
}
catch (Exception e)
{
}
}
}
}
Ivan Pedruzzi
eXcelon Corporation
http://www.stylusstudio.com
> -----Original Message-----
> From: owner-xsl-list@lists.mulberrytech.com
> [mailto:owner-xsl-list@lists.mulberrytech.com] On Behalf Of
> Adam van den Hoven
> Sent: Wednesday, January 30, 2002 9:22 PM
> To: xsl-list@lists.mulberrytech.com
> Subject: [xsl] A community project
>
>
> More times than I can count I've written ASP code that takes
> an xml document and an xsl document and performed the
> transform using a number of global paramters.
>
> However time has past, jobs have changed and I am thrust into
> a Java environment. Despite the fact that I was once a
> promising Java coder, almost 3 years of ASP has eroded my
> ability to do it.
>
> Does anyone have a JSP file they would care to share with the
> rest of the world that takes xml and xsl files names from the
> command line plus an arbitrary number of global parameters
> and returns the resulting output? I'm thinking of something
> like the following url:
>
http://www.adamvandenhoven.com/transform.jsp?XML=/testsource.xsl&XSL=/te
stTrans.xsl&SomeParam=value&SomeOtherParam=AnotherValue
and the assumption is that testTrans.xsl looks something like:
<xsl:stylesheet> <xsl:param name="SomeParam"/> <xsl:param
name="SomeOtherParam"/> <xsl:template match="/"> . . .
All I'm looking for the the basic JSP. There is no need to add caching
or doc pooling or whatever. I know guys who can add that for me. I also
don't care which parser to use.
Its a useful piece of code to have around. If I dig out the ASP version
from the bowels of my old work, I'll post it.
Have a great day,
Adam
__________________________________________________
D O T E A S Y - "Join the web hosting revolution!"
http://www.doteasy.com
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list