Conditional concat in mediator transformation

Question

Hi!
I have 5 address line fields which should be concatenated two one big address field. If one of the line fields is filled then before next field should be concatened additional line break.
Does anybody know how to solve this in the xsl editor of oracle mediator?
kind regards
Torsten

Answer 1

I will not dig into much of XSL concepts but general idea is to declare a variable which holds the line break character and this variable can be used to introduce line breaks as and when required based on the null check of your source item.
Note that line break character will vary based on OS.
For ex: In windows line break can be introduced by using line-feed (#xA).
In linux the same can be achieved by using carriage-return(#xD#x85).
To give a brief idea, it should be something similar to below with additional condition check.
<xsl:variable name="source item 1">null</xsl:variable>
<xsl:variable name="source item 2">denver street 5</xsl:variable>
<xsl:variable name="source item 3">postbox 6</xsl:variable>
<xsl:variable name="source item 4">null</xsl:variable>
<xsl:variable name="source item 5">Germany</xsl:variable>
<xsl:variable name="lineBreak"><xsl:text>&#xD;&#x85;</xsl:text></xsl:variable>
<xsl:template match="/">
<!-- Use conditional check for source item 1-->
<if null>
<xsl:value-of select="$lineBreak"/>
<otherwise>
<xsl:value-of select="<actual-xpath-value>"/>
<!-- Repeat for all source items -->
</xsl:template>
Hopefully this should work.