I have been doing a lot of reading about how to chain transformationswith SAX.
I attempted to execute the following code, and have printed the exception that
follows after the last line of code is executed. Does anyone have any idea what
is wrong?
Rechell Schwartz
String xsl1 = "data.xsl";
String xsl2 = "format.xsl";
long sttime = System.currentTimeMillis();
// Read the arguments
File stylesheet1 = new File(xsl1);
File stylesheet2 = new File(xsl2);
// Set up the input stream
InputSource input = new InputSource(new
StringReader(hand.detailresult));
// Set up to read the input file
/* SAXParserFactory spf =
SAXParserFactory.newInstance();
spf.setNamespaceAware(true);
SAXParser parser = spf.newSAXParser();
XMLReader reader = parser.getXMLReader();
// Create the filters
SAXTransformerFactory stf =(SAXTransformerFactory)
TransformerFactory.newInstance();
XMLFilter filter1 = stf.newXMLFilter(new
StreamSource(stylesheet1));
XMLFilter filter2 = stf.newXMLFilter(new
StreamSource(stylesheet2));
// Wire the output of the reader to filter1 (see Note
#3)
// and the output of filter1 to filter2
filter1.setParent(reader);
filter2.setParent(filter1);
// Set up the output stream
StreamResult result = new StreamResult(out);
// Set up the transformer to process the SAX events
generated
// by the last filter in the chain
Transformer transformer = stf.newTransformer();
transformer.setParameter("flash", flashText);
transformer.setParameter("noflash", noflashText);
transformer.setParameter("sitename", site_name);
SAXSource transformSource = new SAXSource(filter2,
input);
transformer.transform(transformSource, result);
--------------------------------------------------------------------------------------
000000> <javax.xml.transform.TransformerException:
java.lang.NullPointerException
at
weblogic.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:462
)
at jsp_servlet._maint.__data._jspService(__data.java:280)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
---------
java.lang.NullPointerException
at weblogic.apache.xerces.framework.XMLParser.parse(XMLParser.java:980)
at weblogic.xml.jaxp.RegistryXMLReader.parse(RegistryXMLReader.java:125)
at
weblogic.apache.xalan.transformer.TrAXFilter.parse(TrAXFilter.java:130)
at
weblogic.apache.xalan.transformer.TrAXFilter.parse(TrAXFilter.java:130)
at
weblogic.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:445
)
at jsp_servlet._maint.__data._jspService(__data.java:280)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
---------
java.lang.NullPointerException
at
weblogic.apache.xalan.serialize.SerializerToXML.accum(SerializerToXML.java:1394)
at
weblogic.apache.xalan.serialize.SerializerToXML.attributeDecl(SerializerToXML.java:1984)
at
weblogic.apache.xalan.transformer.TransformerIdentityImpl.attributeDecl(TransformerIdentityImpl.java
:1295)
at
weblogic.apache.xerces.parsers.SAXParser.attlistDecl(SAXParser.java:1058)
at
weblogic.apache.xerces.framework.XMLDTDScanner.addAttDef(XMLDTDScanner.java:2270)
at
weblogic.apache.xerces.framework.XMLDTDScanner.scanAttlistDecl(XMLDTDScanner.java:2220)
at
weblogic.apache.xerces.framework.XMLDTDScanner.scanDecls(XMLDTDScanner.java:1447)
at
weblogic.apache.xerces.framework.XMLDocumentScanner.scanDoctypeDecl(XMLDocumentScanner.java:2217)
at
weblogic.apache.xerces.framework.XMLDocumentScanner.access$0(XMLDocumentScanner.java:2170)
at
weblogic.apache.xerces.framework.XMLDocumentScanner$PrologDispatcher.dispatch(XMLDocumentScanner.jav
a:901)
at
weblogic.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
at weblogic.apache.xerces.framework.XMLParser.parse(XMLParser.java:967)
at weblogic.xml.jaxp.RegistryXMLReader.parse(RegistryXMLReader.java:125)
at
weblogic.apache.xalan.transformer.TrAXFilter.parse(TrAXFilter.java:130)
at
weblogic.apache.xalan.transformer.TrAXFilter.parse(TrAXFilter.java:130)
at
weblogic.apache.xalan.transformer.TransformerIdentityImpl.transform(TransformerIdentityImpl.java:445
)
at jsp_servlet._maint.__data._jspService(__data.java:280)
at weblogic.servlet.jsp.JspBase.service(JspBase.java:27)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:265)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:200)
at
weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:2495)
at
weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2204)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:139)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:120)
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