Performance with grouping

Hi,

I have the following XML :

<RESPONSES>
	<RESPONSE>
		<C0><![CDATA[Res_ID]]></C0>
		<C1><![CDATA[Res_Type]]></C1>
		<C2><![CDATA[Error]]></C2>
	</RESPONSE>
	<RESPONSE>
		<C0><![CDATA[15760412_105755]]></C0>
		<C1><![CDATA[SF-IND]]></C1>
		<C2><![CDATA[Unverifiable Service Address]]></C2>
	</RESPONSE>
	<RESPONSE>
		<C0><![CDATA[15930044_106686]]></C0>
	</RESPONSE>
	<RESPONSE>
		<C0><![CDATA[15600408_106431]]></C0>
		<C1><![CDATA[SF-IND]]></C1>
	</RESPONSE>
</RESPONSES>

The actual XML could have several children like C0, C1, C2.......Cn and also
several RESPONSE tags. I need to dynamically extract the tagname from always
the first <RESPONSE> node and then do further processing to group each
node-set into a <resident> tag like:

<residents>
	<resident>
		<Res_ID>15760412_105755</Res_ID>
		<Res_Type>SF-IND</Res_Type>
		<Error>Unverifiable Service Address</Error>
	</resident>
	<resident>
		<Res_ID>15930044_106686</Res_ID>
		<Res_Type>SF-IND</Res_Type>
	</resident>
	<resident>
		<Res_ID>15600408_106431</Res_ID>
		<Res_Type>SF-IND</Res_Type>
	</resident>
</residents>

However, what I have working so far is this:

<residents>
	<resident>
		<Res_ID>15760412_105755</Res_ID>
		<Res_ID>15930044_106686</Res_ID>
		<Res_ID>15600408_106431</Res_ID>
	</resident>
	<resident>
		<Res_Type>SF-IND</Res_Type>
		<Res_Type>SF-IND</Res_Type>
	</resident>
	<resident>
		<Error>Unverifiable Service Address</Error>
	</resident>
</residents>

using the following XSL (snippet):

	<xsl:template match="/">
		<residents>
			<xsl:apply-templates
select="RESPONSES/RESPONSE[1]"/>
		</residents>
	</xsl:template>
	<xsl:template match="RESPONSE[1]">
		<xsl:for-each select="*">
		<resident>
		<xsl:apply-templates
select="../following-sibling::RESPONSE/*[local-name()=local-name(current())]
">
			<xsl:with-param name="tagname"
select="normalize-space(.)"/>
		</xsl:apply-templates>
		</resident>
		</xsl:for-each>
	</xsl:template>
	<xsl:template match="*">
		<xsl:param name="tagname"/>
		<xsl:element name="{$tagname}">
			<xsl:value-of select="."/>
		</xsl:element>
	</xsl:template>

I could loop around and get the grouping how I need it. However, because the
source XML can get pretty large at times, I am looking for a solution that
would make the most sense performance wise. I am using Xalan-J-2_2.

Any help would be appreciated. Thanks,

Maulik Modi
mmodi@xxxxxxxxxx


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