Question

I’m receiving XML into BizTalk. One part is element and the value is ids separated by comma

<Stores>15,34</Stores>

I need to transform this into

<Stores>
    <Store>Store 1</Store>
    <Store>Store 4</Store>
</Stores>

What I need to do is to explode the value by comma, take each value and get value from database (15 -> Store 1, 34 -> Store 2).

How can I make the explode in xslt, how ca I get value from database for each exploded value. I already have procedure in db for that, just need to know how to call it.

Answer 1

Here is an XSLT 1.0 compatible solution that does the explode:

<!-- straightforward -->
<xsl:template match="Stores">
  <xsl:copy>
    <xsl:call-template name="explode">
      <xsl:with-param name="str" select="text()" />
    </xsl:call-template>
  </xsl:copy>
</xsl:template>

<!-- string processing through recursion -->
<xsl:template name="explode">
  <xsl:param name="str" select="''" />

  <xsl:variable name="temp" select="concat($str, ',')" />
  <xsl:variable name="head" select="substring-before($temp, ',')" />
  <xsl:variable name="tail" select="substring-after($temp, ',')" />

  <xsl:if test="$head != ''">
    <Store>
      <xsl:value-of select="$head" />
    </Store>
    <xsl:call-template name="explode">
      <xsl:with-param name="str" select="$tail" />
    </xsl:call-template>
  </xsl:if>
</xsl:template>

Output for <Stores>15,34</Stores> would be:

<Stores>
  <Store>Store 15</Store>
  <Store>Store 34</Store>
</Stores>

David Hall’s solution seems to contain a pointer how to use an XSLT extension function to make calls to that database from XSLT.