I doubt if this is your problem, but have you made sure to define both the
XSL and FO namespaces at the top of your XSL stylesheet?
<xsl:stylesheet version="1.0"
xmlns:xsl=" http://www.w3.org/1999/XSL/Transform
<http://www.w3.org/1999/XSL/Transform> "
xmlns:fo=" http://www.w3.org/1999/XSL/Format
<http://www.w3.org/1999/XSL/Format> "
>
I struggled with null pointer exceptions for about three days until I
figured this one out.
Good luck!
-Matt
-----Original Message-----
From: Paul Kowlessar [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, October 02, 2001 2:16 PM
To: [EMAIL PROTECTED]
Subject: Re: Newbie question: Error: Null
Amit,
I did as you asked and here is the resulting exceptions. I'm stumped.
/***************************************************************************
***/
javax.xml.transform.TransformerConfigurationException:
javax.xml.parsers.FactoryConfigurationError: com.sun.xml.p
at
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:815)
at
org.apache.fop.tools.xslt.TraxTransform.getTransformer(TraxTransform.java:50
)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:100)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:80)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:76)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:49)
at PDFTest.<init>(PDFTest.java:87)
at PDFTest.main(PDFTest.java:107)
---------
javax.xml.transform.TransformerException:
javax.xml.parsers.FactoryConfigurationError: com.sun.xml.parser.SAXPars
at
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:813)
at
org.apache.fop.tools.xslt.TraxTransform.getTransformer(TraxTransform.java:50
)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:100)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:80)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:76)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:49)
at PDFTest.<init>(PDFTest.java:87)
at PDFTest.main(PDFTest.java:107)
---------
org.xml.sax.SAXException: javax.xml.parsers.FactoryConfigurationError:
com.sun.xml.parser.SAXParserFactoryImpl
at
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:771)
at
org.apache.fop.tools.xslt.TraxTransform.getTransformer(TraxTransform.java:50
)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:100)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:80)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:76)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:49)
at PDFTest.<init>(PDFTest.java:87)
at PDFTest.main(PDFTest.java:107)
---------
org.xml.sax.SAXException: javax.xml.parsers.FactoryConfigurationError:
com.sun.xml.parser.SAXParserFactoryImpl
at
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:771)
at
org.apache.fop.tools.xslt.TraxTransform.getTransformer(TraxTransform.java:50
)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:100)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:80)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:76)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:49)
at PDFTest.<init>(PDFTest.java:87)
at PDFTest.main(PDFTest.java:107)
java.lang.reflect.InvocationTargetException: java.lang.NullPointerException
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:102)
at
org.apache.fop.tools.xslt.TraxTransform.transform(TraxTransform.java:80)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:76)
at
org.apache.fop.tools.xslt.XSLTransform.transform(XSLTransform.java:49)
at PDFTest.<init>(PDFTest.java:87)
at PDFTest.main(PDFTest.java:107)
[ERROR]: Logger not set
[INFO]: building formatting object tree
/***************************************************************************
*************/
Cheers...Paul
Amit wrote:
Paul I haven't had much luck with XSLTInputHandler
For some reason I could never get it working. I used
org.apache.fop.tools.xslt.XSLTransform instead and
everything works great.
I have attached my code for a servlet, so to use it in your application
substitute all the
ByArrayOutputStream to FilOutputStream and it should work.
I haven't tried it but if you have problems I'll try it give you feedback if
neccessary.
/*----------------------Code snippet begin ---------------------------*/
String xmlFile=" file:C:\\yourfile.xml <file:C:\\yourfile.xml> ";
String xmlFile=" file:C:\\yourfile.xsl <file:C:\\yourfile.xsl> ";
java.io.Reader reader;
Writer writer = new StringWriter();
try{
ByteArrayOutputStream out = new ByteArrayOutputStream();
XSLTransform.transform(xmlFile,
xslFile, writer);
writer.flush();
writer.close();
reader = new StringReader(writer.toString());
Driver driver = new Driver(new InputSource(reader), out);
driver.setRenderer(Driver.RENDER_PDF);
driver.run();
byte[] content = out.toByteArray();
response.setContentType("application/pdf");
response.setContentLength(content.length);
response.getOutputStream().write(content);
response.getOutputStream().flush();
} catch (Exception ex) {
throw new ServletException(ex);
}
/*
------------------------------------------------------------------------*/
Paul Kowlessar wrote:
> Hi Amit,
>
> I'm sorry; I should have mentioned that these errors occur while running
the standalone application
> as well. As to your question, I want to use Fop within an application on
the client side.
>
> Cheers...Paul
>
> Amit wrote:
>
> > Paul,
> > There is already a class which will take the xml, xsl files and outpu a
pdf!
> > There is also a batch file (if you or unix a shell script) which will do
this for you.
> > It is is in your fop installation directory and is called fop.bat
(fop.sh on unix).
> > This is for a standalone application. Are you trying to create a servlet
which will out put PDF
> > files with the xml and xsl files as input?
> >
> > Amit
> >
> > Paul Kowlessar wrote:
> >
> > > Hi,
> > >
> > > I have just downloaded FOP 0.20.2 and have included the appropriate
jars
> > > into my classpath. To test my installation, I have created a simple
> > > program based on the code in the "Embedding FOP" page. Here is the
> > > code:
> > > /********************************************/
> > > import java.util.*;
> > > import java.io.*;
> > > import java.io.FileOutputStream;
> > > import org.apache.fop.apps.*;
> > > import org.xml.sax.*;
> > > import org.apache.avalon.framework.logger.*;
> > > import org.apache.log.*;
> > >
> > > public class PDFTest
> > > {
> > > public PDFTest()
> > > {
> > > Logger log = null;
> > > Hierarchy hierarchy = Hierarchy.getDefaultHierarchy();
> > > log = hierarchy.getLoggerFor("fop");
> > > log.setPriority(Priority.WARN);
> > >
> > > String xmlFile = "c:\\worktemp\\01M10_YVR_FA.xml";
> > > String xslFile = "c:\\worktemp\\bidreport.xsl";
> > > String pdfFile = "c:\\worktemp\\outFile.pdf";
> > > FileOutputStream output = null;
> > > try{
> > > output = new FileOutputStream(pdfFile);
> > > Driver driver = new Driver();
> > > driver.setLogger(log);
> > > driver.setRenderer(Driver.RENDER_PDF);
> > > XSLTInputHandler inputHandler = new XSLTInputHandler(new
> > > File(xmlFile), newFile(xslFile));
> > > org.xml.sax.XMLReader parser = inputHandler.getParser();
> > > driver.setOutputStream(output);
> > > driver.render(parser,inputHandler.getInputSource());
> > > }catch (Exception ex){
> > > ex.printStackTrace();
> > > }
> > > }
> > >
> > > public static void main(String[] args)
> > > {
> > > PDFTest test = new PDFTest();
> > > }
> > > }
> > > /*************************************************************/
> > >
> > > This file compiles with no problem. However, when I try to run it the
> > > following errors are encountered:
> > >
> > > org.apache.fop.apps.FOPException
> > > at
> > >
org.apache.fop.apps.XSLTInputHandler.getParser(XSLTInputHandler.java:109)
> > >
> > > at PDFTest.<init>(PDFTest.java:29)
> > > at PDFTest.main(PDFTest.java:41)
> > >
> > > ---------
> > >
> > > java.lang.reflect.InvocationTargetException:
> > > org.apache.fop.apps.FOPException:
> > > javax.xml.parsers.FactoryConfigurationE
> > > at
> > >
org.apache.fop.apps.TraxInputHandler.getXMLFilter(TraxInputHandler.java:103)
> > >
> > > at java.lang.reflect.Method.invoke(Native Method)
> > > at
> > >
org.apache.fop.apps.XSLTInputHandler.getParser(XSLTInputHandler.java:102)
> > >
> > > at PDFTest.<init>(PDFTest.java:29)
> > > at PDFTest.main(PDFTest.java:41)
> > >
> > > ---------
> > >
> > > ---------
> > >
> > > org.apache.fop.apps.FOPException:
> > > javax.xml.parsers.FactoryConfigurationError:
> > > com.sun.xml.parser.SAXParserFactoryImpl
> > > at
> > >
org.apache.fop.apps.TraxInputHandler.getXMLFilter(TraxInputHandler.java:103)
> > >
> > > at java.lang.reflect.Method.invoke(Native Method)
> > > at
> > >
org.apache.fop.apps.XSLTInputHandler.getParser(XSLTInputHandler.java:102)
> > >
> > > at PDFTest.<init>(PDFTest.java:29)
> > > at PDFTest.main(PDFTest.java:41)
> > >
> > > ---------
> > >
> > > javax.xml.transform.TransformerConfigurationException:
> > > javax.xml.parsers.FactoryConfigurationError: com.sun.xml.parser
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:815)
> > >
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newXMLFilter(TransformerFa
ctoryImpl.java:486)
> > >
> > > at
> > >
org.apache.fop.apps.TraxInputHandler.getXMLFilter(TraxInputHandler.java:84)
> > >
> > > at java.lang.reflect.Method.invoke(Native Method)
> > > at
> > >
org.apache.fop.apps.XSLTInputHandler.getParser(XSLTInputHandler.java:102)
> > >
> > > at PDFTest.<init>(PDFTest.java:29)
> > > at PDFTest.main(PDFTest.java:41)
> > > ---------
> > > javax.xml.transform.TransformerException:
> > > javax.xml.parsers.FactoryConfigurationError:
> > > com.sun.xml.parser.SAXParserFac
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:813)
> > >
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newXMLFilter(TransformerFa
ctoryImpl.java:486)
> > >
> > > at
> > >
org.apache.fop.apps.TraxInputHandler.getXMLFilter(TraxInputHandler.java:84)
> > >
> > > at java.lang.reflect.Method.invoke(Native Method)
> > > at
> > >
org.apache.fop.apps.XSLTInputHandler.getParser(XSLTInputHandler.java:102)
> > >
> > > at PDFTest.<init>(PDFTest.java:29)
> > > at PDFTest.main(PDFTest.java:41)
> > > ---------
> > > org.xml.sax.SAXException: javax.xml.parsers.FactoryConfigurationError:
> > > com.sun.xml.parser.SAXParserFactoryImpl
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:771)
> > >
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newXMLFilter(TransformerFa
ctoryImpl.java:486)
> > >
> > > at
> > >
org.apache.fop.apps.TraxInputHandler.getXMLFilter(TraxInputHandler.java:84)
> > >
> > > at java.lang.reflect.Method.invoke(Native Method)
> > > at
> > >
org.apache.fop.apps.XSLTInputHandler.getParser(XSLTInputHandler.java:102)
> > >
> > > at PDFTest.<init>(PDFTest.java:29)
> > > at PDFTest.main(PDFTest.java:41)
> > > ---------
> > > org.xml.sax.SAXException: javax.xml.parsers.FactoryConfigurationError:
> > > com.sun.xml.parser.SAXParserFactoryImpl
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newTemplates(TransformerFa
ctoryImpl.java:771)
> > >
> > > at
> > >
org.apache.xalan.processor.TransformerFactoryImpl.newXMLFilter(TransformerFa
ctoryImpl.java:486)
> > >
> > > at
> > >
org.apache.fop.apps.TraxInputHandler.getXMLFilter(TraxInputHandler.java:84)
> > >
> > > at java.lang.reflect.Method.invoke(Native Method)
> > > at
> > >
org.apache.fop.apps.XSLTInputHandler.getParser(XSLTInputHandler.java:102)
> > >
> > > at PDFTest.<init>(PDFTest.java:29)
> > > at PDFTest.main(PDFTest.java:41)
> > >
> > > Has anyone encountered this problem before? If so, please reply with
> > > your solution.
> > > Thanks in advance.
> > >
> > > Cheers...Paul
> > >
> > > ---------------------------------------------------------------------
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> > > For additional commands, email: [EMAIL PROTECTED]
> >
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