JavaServlet with XSLT

Hi. Guys
I am trying to develop a web application using javaservlet, this application invokes an XSLT style sheet to transform an XML document. I am getting a mistake that I believe it is concern with the configuration, any one can help please?
Here is how I’m invoking the xslt sttylesheet
try {
curName="/WEB-INF/classes/xslt/transforme.xsl";
URL xsltURL=getServletContext().getResource(curName);
{color:#ff0000} String xsltSystemID=xsltURL.toExternalForm();{color}
this.thanksTemplates=transFact.newTemplates(new StreamSource (xsltSystemID));
The code in red is line number 63
And here is the error message
java.lang.NullPointerException
at Mypackage. TransDoc.doGet(TransDoc.java:63)
in addition, the xslt stylesheet is resided in the correct path. And saxon8.jar is embedded in my classpath.
Many thanks in advance

String xsltSystemID=xsltURL.toExternalForm();The only thing which can be null in this line is xsltURL. So the resource simply doesn't exist. Doublecheck the name and the availability. Hint: classpath covers /WEB-INF/classes, not /.

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Possible with XSLT mapping?

Hi,
I have source xml structure of format
<Header fld1 fld2 fld3
fld4 fld5 fld6 ><line fld7 fld8 fld9 </line></header>
Header occurence is 1---unbounded
and line occurence is 0---unbounded
and line items can exist or not for some header items.for some headers items can be single or multiple.
I get xml files on sender side and need to convert to flat files ,so I am using sender file CC on sender and receiver file CC with FCC on the receiver side.
I am able to get with receiver file FCC ,I know FCC can support two level heirarchies only.
header1
header2
header3
header n
line x
line y
line z
line n
so i dont know to which header values the item values belong to.I need to get
this structure
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header2....(let say 2 items)
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liney
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header n.....(again no items)
so I have another Xi guy,he told me that we can achieve this by using a XSLT mapping rather than gaphical mapping which I am using now.
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I know we may get the required output structure by writing a module program and call that in the receiver file adapter.
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thank you,
regards,
Babu

udo,
sorry if I put in confusion with my structures of both source and target.I am trying to give little eloberate
I have source xml data like this.
<Header1 fld1=1234 fld2="name1" fld3='SAP1"
fld4='000" fld5=0 fld6="sdn1"</header>...............no line items here
<Header2 fld1=123 fld2="name" fld3='SAP"
fld4='00" fld5=0 fld6="sdn" ><line fld7=value1 fld8=value2 fld9=value3 /line><line fld7=value4 fld8=value5 fld9=value6 /line></header>.....two line items here
<Header3 fld1=123 fld2="name" fld3='SAP"
fld4='00" fld5=0 fld6="sdn" ><line fld7=value7 fld8=value8 fld9=value9 /line></header>......one line item here
Header4 fld1=12345 fld2="name2" fld3='SAP2"
fld4='0006" fld5=01 fld6="sdn2"</header>.......no line items here
I want target flat file structure like this considering "~" (tild)as delimiter
1234name1SAP100000~sdn1 ...................> flatfile values for header1(no item values for this header1)
123nameSAP000~sdn..........................> flat file values for hader2
value1value2value3...........................>line item values for header2
value4value5value6...........................>line item values for header2(two line item values for this header2)
123nameSAP000~sdn..........................>values for hader3
value7value8value9...........................>line item values for header3(one item values for this header3)
12345name2SAP2000601~sdn2..................>values for header4(no item values for this header4)
................... like for n header values.

Using transform api with xslt and DOM Nodes

Hi,
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If I use this on e.g.
xsl:
<?xml version="1.0"?>
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From what I read in the API docs, I think what I'm doing should be ok.
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why?
that's all the point of XSL: define what part of your
XML you want in your XSL templates, there is no need
to prepare a sub-DOM of your DOM.
Ok. Right. That's an alternative.
The problem remains, that there are some stylesheets originally written
for the current solution and though they should work with the whole document
as well, it's not certain.
Actually I don't know if this ever worked. I did neither write this code nor maintained the system so far.
btw. you would be faster by giving a StreamSource to
your transformation.Probably yes. But that would imply to rewrite a lot of code.
What is happening is:
there is a SOAP answser containing a xml document as the result parameter.
The SOAP answer is parsed (I guess by the soap classes already) and the
result xml is extracted. That's where the element node I'm trying to transform
stems from.
Besides, I still don't see why DOMSource takes any node if only document nodes
work.
Thanks, Morus

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Actually your mapping raising an exception which result in sys-fail.
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###### --%>
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I know how to do this in a JSP, but since the data is in XML we like to do this
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Can you help?
Subbu Allamaraju <subbuATBeaDOTCom> wrote:
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the
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Subbu
Ard van der Scheer wrote:
Hi,
We're using XSLT to transform XML data to HTML in a portlet. The problemis that
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link with XSLT? In the JSP you can use the netui tag library like:
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link
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</netui:anchor>
but how can I achieve this with XSLT? We tried generating the xsl witha jsp,
but this doesn't work since the data entered in the value attributeof the netui:parameter
tag will be encoded causing the XSL transformer to fail.
Is there an easy solution to this? Or can XSLT only be used with verysimple content?
Ard

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Thanks.

It's 10.2.0.4.
Here's the procedure that accepts the XML/XSL clobs and tries to produce a SQL statement.
PROCEDURE GetSQLQueryFromXML(XMLClob in CLOB, XSLStylesheet in CLOB,
            SQLQuery out CLOB, status out integer) IS
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xmldata               XMLType; -- The XMLType format of the XML to transform
xsldata               XMLType; -- The XMLType format of the stylesheet to apply
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v_SQLQuery            Clob;     -- Holds XML Clob before translating ~ to '
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status := 1; -- Everything went fine to get here
EXCEPTION
WHEN OTHERS THEN
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END GetSQLQueryFromXML;The XML it works off of is
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<variable table_name="SOME_PERSON_TABLE" query_type="PERSON">
<item>
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    <criteria><![CDATA[=]]></criteria>
    <fieldType><![CDATA[Integer]]></fieldType>
    <value><![CDATA[123456789]]></value>
</item>
<item>
    <fieldName><![CDATA[LAST_NAME]]></fieldName>
    <criteria><![CDATA[=]]></criteria>
    <fieldType><![CDATA[String]]></fieldType>
    <value><![CDATA[DOE]]></value>
</item>
<item>
    <fieldName><![CDATA[FIRST_NAME]]></fieldName>
    <criteria><![CDATA[=]]></criteria>
    <fieldType><![CDATA[String]]></fieldType>
    <value><![CDATA[JOHN]]></value>
</item>
<item>
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    <criteria><![CDATA[-]]></criteria>
    <fieldType><![CDATA[String]]></fieldType>
    <value />
</item>
<item>
    <fieldName><![CDATA[SUFFIX]]></fieldName>
    <criteria><![CDATA[-]]></criteria>
    <fieldType><![CDATA[String]]></fieldType>
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</item>
</variable>');And the corresponding XSLT that should translate it is:
myStylesheet CLOB :=
to_clob('<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">


<xsl:output method="text" omit-xml-declaration="yes" indent="no"/>


<xsl:variable name="apos">~</xsl:variable>
<xsl:template match="/">
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    <xsl:value-of select="variable/@table_name"/>
    where 1=1
    <xsl:for-each select="variable/child::node()">
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        <xsl:when test="./value/text()[normalize-space(.)]">
        
          AND <xsl:value-of select="./fieldName"/>
          <xsl:text> </xsl:text>
          <xsl:value-of select="./criteria"/>
          <xsl:text> </xsl:text>
          <xsl:choose>
            <xsl:when test="string(./fieldType)=''String''">
              <xsl:copy-of select="$apos" />
              <xsl:value-of select="./value"/>
              <xsl:copy-of select="$apos" />
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            <xsl:when test="string(./fieldType)=''Clob''">
              <xsl:copy-of select="$apos" />
              <xsl:value-of select="./value"/>
              <xsl:copy-of select="$apos" />
            </xsl:when>
            <xsl:otherwise>
              <xsl:value-of select="./value"/>
            </xsl:otherwise>
          </xsl:choose>
        </xsl:when>
      </xsl:choose>
    </xsl:for-each>
</xsl:template>
</xsl:stylesheet>');Basically if the VALUE element has a value then the fieldType is checked. If fieldType is String or Clob then we'll need the apostrophes. For now I'm putting in tildas and changing them later.

Need Help with XSLT Mapping....

My scenario is synchronous scenario. SAP(Proxy) to XI to WebServer(SOAP)
The response is coming back in asingle ANY field and so I guess I need XSLT Mapping to map it to the response message going backto SAP.
The response sent by webserver is of the structure:
<?xml version="1.0" encoding="UTF-8"?>
<GetStudentsExResponse xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://tempuri.org/LMSWebSvc/LMS_Interface">
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<?xml version="1.0" encoding="UTF-8"?>
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</ns0:Course_Response_MT>
and the xslt mapping that I have written for this is:
<?xml version='1.0' encoding='utf-8' ?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:a="urn:sce-com:xi:fi:goyala" xmlns:DateUtils="com.sce.hcm.xi.util.DateUtils">
     <xsl:template match="/">
          <a:Course_Response_MT>
               <GetStudentsExResponse>
                    <GetStudentsExResult>
                         <Courses>
                              <CourseName>
                                   <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course[@CourseName]"/>
                                   <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course[@CourseID]"/>
                                   <Student>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student[@LastName]"/>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student[@FirstName]"/>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student[@SSN]"/>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student[@LoginID]"/>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student[@CourseStatus]"/>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student[@CourseStatusDate]"/>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student[@CourseScore]"/>
                                        <Lesson>
                                             <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson[@LessonCode]"/>
                                             <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson[@LessonName]"/>
                                             <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson[@LessonStatus]"/>
                                             <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson[@LessonStatusDate]"/>
                                             <ExamInteractions>
                                                         <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions[@QuesNum]"/>
                                                         <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions[@StudentResp]"/>
                                                         <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions[@CorrectResp]"/>
                                                               <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions[@Judged]"/>
                                             </ExamInteractions>
                                        </Lesson>
                                   </Student>
                              </CourseName>
                         </Courses>
                    </GetStudentsExResult>
               </GetStudentsExResponse>
          </a:Course_Response_MT>
     </xsl:template>
</xsl:stylesheet>
But This mapping is not working... I am getting errors...
Pls advice, this is urgent..
Regards,
XIer
Edited by: XIer on Apr 25, 2008 12:23 PM
Edited by: XIer on Apr 25, 2008 12:37 PM
Edited by: XIer on Apr 25, 2008 12:37 PM

Hi All,
          I have now modified my XSLT Mapping as :
<?xml version='1.0' encoding='utf-8' ?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:a="urn:sce-com:xi:fi:goyala" xmlns:DateUtils="com.sce.hcm.xi.util.DateUtils">
     <xsl:template match="/">
          <a:Course_Response_MT>
               <GetStudentsExResponse>
               <xsl:value-of select="a:GetStudentsExResponse"/>
                    <GetStudentsExResult>
                    <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult"/>
                         <Courses>
                         <xsl:for-each select="a:GetStudentsExResponse/GetStudentsExResult/Courses">
                              <Course>
                               <CourseName>
                                   <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/@CourseName"/>
                                   </CourseName>
                                   <CourseID>
                                   <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/@CourseID"/>
                                   </CourseID>
                                   <xsl:for-each select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student">
                                   <Student>
                                   <LastName>
                                        <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/@LastName"/></LastName>
                                   <FirstName>     <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/@FirstName"/></FirstName>
                                        <SSN><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/@SSN"/></SSN>
                                        <LoginID><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/@LoginID"/></LoginID>
                                        <CourseStatus><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/@CourseStatus"/></CourseStatus>
                                        <CourseStatusDate><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/@CourseStatusDate"/></CourseStatusDate>
                                        <CourseScore><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/@CourseScore"/></CourseScore>
                                        <xsl:for-each select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson">
                                        <Lesson>
                                             <LessonCode><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/@LessonCode"/></LessonCode>
                                             <LessonName><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/@LessonName"/></LessonName>
                                             <LessonStatus><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/@LessonStatus"/></LessonStatus>
                                             <LessonStatusDate><xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/@LessonStatusDate"/></LessonStatusDate>
                                             <ExamInteractions>
                                                  <QuesNum>       <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions/@QuesNum"/></QuesNum>
                                                  <StudentResp>       <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions/@StudentResp"/></StudentResp>
                                                  <CorrectResp>       <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions/@CorrectResp"/></CorrectResp>
                                                     <Judged>          <xsl:value-of select="a:GetStudentsExResponse/GetStudentsExResult/Courses/Course/Student/Lesson/ExamInteractions/@Judged"/></Judged>
                                             </ExamInteractions>
                                        </Lesson>
                                        </xsl:for-each>
                                   </Student>
                              </xsl:for-each>
                              </Course>
                              </xsl:for-each>
                         </Courses>
                    </GetStudentsExResult>
               </GetStudentsExResponse>
          </a:Course_Response_MT>
     </xsl:template>
</xsl:stylesheet>
However when i execute this mapping in IR, I get empty tags at the target side:
<?xml version="1.0" encoding="UTF-8"?>
<a:Course_Response_MT xmlns:a="urn:sce-com:xi:fi:goyala"><GetStudentsExResponse><GetStudentsExResult><Courses/></GetStudentsExResult></GetStudentsExResponse></a:Course_Response_MT>
Please Advice....
Regards,
XIer

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