Need to exclude the empty elements after mapping in xslt.

Question

Hi Team,
I have a requirement. I need to invoke a wsdl which will have some po details. I'm using transformation to map the value from my local bpel variable to invoke variable. It is mostly a one-one mapping. no functions no looping and no complex transformation. Now the requirement is that I need to only send the elements which has the value also to add, there is no particular element which can be empty. There can be three elements empty or four or any. I need to map all and then I need to send only the elements those has values. Below is my mapping.
<?xml version="1.0" encoding="UTF-8" ?>
<?oracle-xsl-mapper <!-- SPECIFICATION OF MAP SOURCES AND TARGETS, DO NOT MODIFY. -->
  <mapSources>
    <source type="XSD">
      <schema location="POTest.xsd"/>
      <rootElement name="POTestProcessResponse" namespace="http://xmlns.oracle.com/POTest"/>
    </source>
  </mapSources>
  <mapTargets>
    <target type="XSD">
      <schema location="POTest.xsd"/>
      <rootElement name="POTestProcessResponse" namespace="http://xmlns.oracle.com/POTest"/>
    </target>
  </mapTargets>
  <!-- GENERATED BY ORACLE XSL MAPPER 10.1.3.3.0(build 070615.0525) AT [THU OCT 17 10:53:26 GMT 2013]. -->
?>
<xsl:stylesheet version="1.0"
                xmlns:xref="http://www.oracle.com/XSL/Transform/java/oracle.tip.xref.xpath.XRefXPathFunctions"
                xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
                xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
                xmlns:ns1="http://xmlns.oracle.com/POTest"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:ora="http://schemas.oracle.com/xpath/extension"
                xmlns:ehdr="http://www.oracle.com/XSL/Transform/java/oracle.tip.esb.server.headers.ESBHeaderFunctions"
                xmlns:ns0="http://www.w3.org/2001/XMLSchema"
                xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc"
                xmlns:ids="http://xmlns.oracle.com/bpel/services/IdentityService/xpath"
                xmlns:hwf="http://xmlns.oracle.com/bpel/workflow/xpath"
                exclude-result-prefixes="xsl ns1 ns0 xref xp20 bpws ora ehdr orcl ids hwf">
  <xsl:template match="/">
    <ns1:POTestProcessResponse>
      <xsl:attribute name="OrderDate">
        <xsl:value-of select="/ns1:POTestProcessResponse/@OrderDate"/>
      </xsl:attribute>
      <ns1:name>
        <xsl:value-of select="/ns1:POTestProcessResponse/ns1:name"/>
      </ns1:name>
      <ns1:street>
        <xsl:value-of select="/ns1:POTestProcessResponse/ns1:street"/>
      </ns1:street>
      <ns1:city>
        <xsl:value-of select="/ns1:POTestProcessResponse/ns1:city"/>
      </ns1:city>
      <ns1:state>
        <xsl:value-of select="/ns1:POTestProcessResponse/ns1:state"/>
      </ns1:state>
      <ns1:zip>
        <xsl:value-of select="/ns1:POTestProcessResponse/ns1:zip"/>
      </ns1:zip>
    </ns1:POTestProcessResponse>
  </xsl:template>
  </xsl:stylesheet>
Here I just mentioned only some elements but there are lot of other elements which can also be empty. If I keep on putting an if condition for each and every element it will messup the code. which I don't want to do due to lot of elements that needs to be checked. I tried with following templates.
1)
<xsl:template match="*[not(child::node())]"/>
  <xsl:template match="@*|node()">
<xsl:if test=". != '' or ./@* != ''">
   <xsl:copy>
     <xsl:apply-templates select="@*|node()" />
   </xsl:copy>
</xsl:if>
</xsl:template>
2)
<xsl:output omit-xml-declaration="yes" indent="yes"/>
  <xsl:strip-space elements="*"/>
  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="node()|@*"/>
    </xsl:copy>
  </xsl:template>
  <xsl:template match="*[not(node())]
  |
   *[not(node()[2])
   and
     node()/self::text()
   and
     not(normalize-space())
  "/>
3)
<xsl:template match="/">
    <xsl:apply-templates select="*"/>
  </xsl:template>
  <xsl:template match="*">
    <xsl:if test=". != ''">
      <xsl:copy>
        <xsl:element name="name()">
          <xsl:copy-of select="@*"/>
          <xsl:apply-templates/>
        </xsl:element>
      </xsl:copy>
    </xsl:if>
  </xsl:template>
But none of them is working. Kindly help. It is the only issue which is blocking.
Help is greatly appreciated.
Regards,
Venkatesh.

Answer 1

I received the following errors:
  Line Number:(55) : Error: "xsl:strip-space" XSL Element Currently not Supported
  Line Number:(31) : Error: <xsl:template match="/"> and <xsl:template name="..."> are the only permitted <template> elements in the XSL
  Line Number:(53) : Error: <xsl:template match="/"> and <xsl:template name="..."> are the only permitted <template> elements in the XSL
  Line Number:(56) : Error: <xsl:template match="/"> and <xsl:template name="..."> are the only permitted <template> elements in the XSL
Below is the complete transformation code.:
<?xml version="1.0" encoding="UTF-8" ?>
<?oracle-xsl-mapper
  <!-- SPECIFICATION OF MAP SOURCES AND TARGETS, DO NOT MODIFY. -->
  <mapSources>
    <source type="XSD">
      <schema location="POTest.xsd"/>
      <rootElement name="POTestProcessRequest" namespace="http://xmlns.oracle.com/POTest"/>
    </source>
  </mapSources>
  <mapTargets>
    <target type="XSD">
      <schema location="POTest.xsd"/>
      <rootElement name="POTestProcessResponse" namespace="http://xmlns.oracle.com/POTest"/>
    </target>
  </mapTargets>
  <!-- GENERATED BY ORACLE XSL MAPPER 10.1.3.3.0(build 070615.0525) AT [THU OCT 17 10:20:35 GMT 2013]. -->
?>
<xsl:stylesheet version="1.0"
                xmlns:xref="http://www.oracle.com/XSL/Transform/java/oracle.tip.xref.xpath.XRefXPathFunctions"
                xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
                xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
                xmlns:ns1="http://xmlns.oracle.com/POTest"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:ora="http://schemas.oracle.com/xpath/extension"
                xmlns:ehdr="http://www.oracle.com/XSL/Transform/java/oracle.tip.esb.server.headers.ESBHeaderFunctions"
                xmlns:ns0="http://www.w3.org/2001/XMLSchema"
                xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc"
                xmlns:ids="http://xmlns.oracle.com/bpel/services/IdentityService/xpath"
                xmlns:hwf="http://xmlns.oracle.com/bpel/workflow/xpath"
                exclude-result-prefixes="xsl ns1 ns0 xref xp20 bpws ora ehdr orcl ids hwf">
  <xsl:template match="/">
      <ns1:POTestProcessResponse>
      <xsl:attribute name="OrderDate">
        <xsl:value-of select="/ns1:POTestProcessRequest/@OrderDate"/>
      </xsl:attribute>
      <ns1:name>
        <xsl:value-of select="/ns1:POTestProcessRequest/ns1:name"/>
      </ns1:name>
      <ns1:street>
        <xsl:value-of select="/ns1:POTestProcessRequest/ns1:street"/>
      </ns1:street>
      <ns1:city>
        <xsl:value-of select="/ns1:POTestProcessRequest/ns1:city"/>
      </ns1:city>
      <ns1:state>
        <xsl:value-of select="/ns1:POTestProcessRequest/ns1:state"/>
      </ns1:state>
      <ns1:zip>
        <xsl:value-of select="/ns1:POTestProcessRequest/ns1:zip"/>
      </ns1:zip>
    </ns1:POTestProcessResponse>
  </xsl:template>
    <xsl:strip-space elements="*" />
<xsl:template match="*">
<xsl:if test=".!='' or count(@*)!=0">
  <xsl:copy>
   <xsl:apply-templates select="*|@*|text()" />
  </xsl:copy>
</xsl:if>
</xsl:template>
<xsl:template match="@*">
<xsl:copy-of select="." />
</xsl:template>
<xsl:template match="text()">
<xsl:value-of select="." />
</xsl:template>
</xsl:stylesheet>