Map structure with logic

Question

Hi there,
I am currently facing the issue to map fields depending on on other fields values:
The problem is as follows:
there are two sources for values,
if the value can be found in source1 and source2 no value is mapped
if the value can be found in s1 but not in s2 the value should be mapped with attribute "delete"
if the value can not be found in s1 but in s2 the value should be mapped with the attribute "create"
At the Moment I have no idear which approach to try, I thought about using a scripting functoid but I am not shure if it is possible to have multiple in and output nodes? I don`t have any experience with xslt but maybe it is neccesary to learn it for this?
thanks in advance for your ideas!
<source1>
<value>111</value>
<value>112</value>
<value>113</value>
</source1>
<source2>
<value>111</value>
<value>124</value>
<value>125</value>
<value>126</value>
</source2>
<result>
<value atrribute="delete">112</value>
<value attribute="delete">113</value>
<value attribute="create">124</value>
<value attribute="create">125</value>
<value attribute="create">126</value>
</result>

Answer 1

If your input XML looks like this:
<Root>
<source1>
<value>111</value>
<value>112</value>
<value>113</value>
</source1>
<source2>
<value>111</value>
<value>124</value>
<value>125</value>
<value>126</value>
</source2>
</Root>
And you apply the following XSLT:
<?xml version="1.0" encoding="utf-16"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:msxsl="urn:schemas-microsoft-com:xslt" xmlns:var="http://schemas.microsoft.com/BizTalk/2003/var" exclude-result-prefixes="msxsl xsl var" version="1.0">
<xsl:output omit-xml-declaration="yes" method="xml" version="1.0" />
<xsl:template match="Root">
<result>
<xsl:for-each select="source1/value">
<xsl:variable name="myValue" select="." />
<xsl:if test="(count(//value[text() = $myValue]) = 1)">
<value attribute="delete">
<xsl:value-of select="." />
</value>
</xsl:if>
</xsl:for-each>
<xsl:for-each select="source2/value">
<xsl:variable name="myValue" select="." />
<xsl:if test="(count(//value[text() = $myValue]) = 1)">
<value attribute="create">
<xsl:value-of select="." />
</value>
</xsl:if>
</xsl:for-each>
</result>
</xsl:template>
</xsl:stylesheet>
You will get the following output:
<result>
<value attribute="delete">112</value>
<value attribute="delete">113</value>
<value attribute="create">124</value>
<value attribute="create">125</value>
<value attribute="create">126</value>
</result>
Morten la Cour