Grouping between different Xpath in XSLT - xslt

Question

I am having concerns in grouping the nodes from different XPath.
My XML is :-
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<rfs>
<rf id="cc_3_case_33">
<ref>P028</ref>
<rcs>
<rc id="cc_3_rc_199_1022">
<kws/>
</rc>
</rcs>
<kws>
<kw>
<name>AAKAB</name>
<type>CC</type>
</kw>
<kw>
<name>Bakery</name>
<type>IS</type>
</kw>
</kws>
</rf>
<rf id="cc_5_case_85">
<ref>P086</ref>
<rcs>
<rc id="cc_5_rc_199_3772">
<kws>
<kw>
<name>AAKSweAB</name>
<type>CC</type>
</kw>
<kw>
<name>Tefac</name>
<type>IS</type>
</kw>
</kws>
</rc>
</rcs>
<kws/>
</rf>
<rf id="cc_3_case_8">
<ref>P013</ref>
<rcs>
<rc id="cc_3_rc_199_1179">
<kws>
<kw>
<name>AAKAB</name>
<type>CC</type>
</kw>
<kw>
<name>AAK Denmark A/S</name>
<type>CC</type>
</kw>
<kw>
<name>Processes</name>
<type>IS</type>
</kw>
</kws>
</rc>
</rcs>
<kws>
<kw>
<name>AAKAB</name>
<type>CC</type>
</kw>
<kw>
<name>Processes</name>
<type>IS</type>
</kw>
</kws>
</rf>
<rf id="cc_3_case_89">
<ref>P085</ref>
<rcs>
<rc id="cc_3_rc_199_4057">
<kws>
<kw>
<name>AAKAB</name>
<type>CC</type>
</kw>
<kw>
<name>PB</name>
<type>IS</type>
</kw>
<kw>
<name>PBM</name>
<type>IS>PB</type>
</kw>
<kw>
<name>Coasun</name>
<type>Product Category</type>
</kw>
<kw>
<name>Akobisc</name>
<type>Product Category>Coasun</type>
</kw>
</kws>
</rc>
</rcs>
<kws>
<kw>
<name>AAKAB</name>
<type>CC</type>
</kw>
</kws>
</rf>
<rf id="cc_8_case_58">
<ref>P055</ref>
<rcs>
<rc id="cc_8_rc_199_2333">
<kws>
<kw>
<name>AAKNetBV</name>
<type>CC</type>
</kw>
<kw>
<name>Special Nutrition</name>
<type>IS</type>
</kw>
</kws>
</rc>
</rcs>
<kws>
<kw>
<name>AAKSweAB</name>
<type>CC</type>
</kw>
<kw>
<name>Special Nutrition</name>
<type>IS</type>
</kw>
</kws>
</rf>
<rf id="cc_5_case_46">
<ref>P041</ref>
<rcs>
<rc id="cc_5_rc_199_1572">
<kws>
<kw>
<name>AAKAB</name>
<type>CC</type>
</kw>
<kw>
<name>AAKSweAB</name>
<type>CC</type>
</kw>
<kw>
<name>PC</name>
<type>IS</type>
</kw>
</kws>
</rc>
<rc id="cc_5_rc_199_2254">
<kws>
<kw>
<name>AAKSweAB</name>
<type>CC</type>
</kw>
<kw>
<name>PC</name>
<type>IS</type>
</kw>
</kws>
</rc>
</rcs>
<kws>
<kw>
<name>AAKSweAB</name>
<type>CC</type>
</kw>
<kw>
<name>PC</name>
<type>IS</type>
</kw>
</kws>
</rf>
<rf id="cc_0_case_76">
<ref>P075</ref>
<rcs>
<rc id="cc_0_rc_199_3186">
<kws/>
</rc>
</rcs>
<kws>
<kw>
<name>AAKKamPL</name>
<type>CC</type>
</kw>
</kws>
</rf>
<rf id="cc_0_case_72">
<ref>P071</ref>
<rcs>
<rc id="cc_0_rc_199_3170">
<kws>
<kw>
<name>CCF</name>
<type>IS</type>
</kw>
</kws>
</rc>
</rcs>
<kws>
<kw>
<name>AAKKamPL</name>
<type>CC</type>
</kw>
</kws>
</rf>
</rfs>
The XSLT I wrote is below which is able to group between nodes of similar Xpath..and if the data doesn't exist in same hierarchy, the values are not coming up.
My XSLT :-
<xsl:template match="/">
<ccwc id="a">
<cccs>
<xsl:choose>
<xsl:when test="rfs/rf/rcs/rc/kws=''">
<xsl:for-each-group select="rfs/rf/kws/kw[type='CC'][1]" group-by="name">
<xsl:variable name="ccName1" select="current-group()[1]/name"/>
<ccc>
<xsl:attribute name="id"><xsl:value-of select="$ccName1"/></xsl:attribute>
<name><xsl:value-of select="$ccName1"/></name>
<cccs>
<xsl:for-each-group select="current-group()/../kw[type='IS']" group-by="name">
<xsl:variable name="ccName2" select="current-group()[1]/name"/>
<ccc>
<xsl:attribute name="id"><xsl:value-of select="concat($ccName1,'_',$ccName2)"/></xsl:attribute>
<name><xsl:value-of select="$ccName2"/></name>
</ccc>
</xsl:for-each-group>
</cccs>
</ccc>
</xsl:for-each-group>
</xsl:when>
<xsl:when test="rfs/rf/rcs/rc/kws!=''">
<xsl:for-each-group select="rfs/rf/rcs/rc/kws/kw[type='CC'][1]" group-by="name">
<xsl:variable name="ccName1" select="current-group()[1]/name"/>
<ccc>
<xsl:attribute name="id"><xsl:value-of select="$ccName1"/></xsl:attribute>
<name><xsl:value-of select="$ccName1"/></name>
<cccs>
<xsl:for-each-group select="current-group()/../kw[type='IS']" group-by="name">
<xsl:variable name="ccName2" select="current-group()[1]/name"/>
<ccc>
<xsl:attribute name="id"><xsl:value-of select="concat($ccName1,'_',$ccName2)"/></xsl:attribute>
<name><xsl:value-of select="$ccName2"/></name>
</ccc>
</xsl:for-each-group>
</cccs>
</ccc>
</xsl:for-each-group>
</xsl:when>
</xsl:choose>
</cccs>
</ccwc>
</xsl:template>
</xsl:transform>
My Output XML is coming -
<ccwc id="a">
<cccs>
<ccc id="AAKAB">
<name>AAKAB</name>
<cccs>
<ccc id="AAKAB_Bakery">
<name>Bakery</name>
</ccc>
<ccc id="AAKAB_Processes">
<name>Processes</name>
</ccc>
</cccs>
</ccc>
<ccc id="AAKSweAB">
<name>AAKSweAB</name>
<cccs>
<ccc id="AAKSweAB_Special Nutrition">
<name>Special Nutrition</name>
</ccc>
<ccc id="AAKSweAB_PC">
<name>PC</name>
</ccc>
</cccs>
</ccc>
<ccc id="AAKKamPL">
<name>AAKKamPL</name>
<cccs/>
</ccc>
</cccs>
</ccwc>
Whereas I want the Output XML as follows:-
<?xml version="1.0" encoding="UTF-8"?>
<ccwc xmlns:aak="http://www.tridan.it/aak" id="aak">
<defaultComplexity>NORMAL</defaultComplexity>
<cccs>
<ccc id="AAKAB">
<name>AAKAB</name>
<cccs>
<ccc id="AAKAB_Bakery">
<name>Bakery</name>
</ccc>
<ccc id="AAKAB_Processes">
<name>Processes</name>
</ccc>
</cccs>
</ccc>
<ccc id="AAKSweAB">
<name>AAKSweAB</name>
<cccs>
<ccc id="AAKSweAB_Special Nutrition">
<name>Special Nutrition</name>
</ccc>
<ccc id="AAKSweAB_PC">
<name>PC</name>
</ccc>
</cccs>
</ccc>
<ccc id="AAKKamPL">
<name>AAKKamPL</name>
<cccs>
<ccc id="AAKKamPL_CCF">
<name>CCF</name>
</ccc>
</cccs>
</ccc>
</cccs>
</ccwc>
i.e , concatenating the CC and IS first occurrence values whether both are in rfs/rf/kws/kw or both in rfs/rf/rcs/rc/kws/kw or one in either of the XPaths.
Any help would be appreciable.Thanks!