Stack overflow error - xslt-1.0

I am attempting to join add one XML file to another and I have found examples of how to do this.
I'm using Altova's XML-Spy (home). It is a 2006 copy which was free at the time!
However When I do the transformation it fails and I get the following message: XSLT stack overflow
Here is the xsl: 'updateFavourites.xml'
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:param name="fileName" select=" 'CC_favourites.xml' " />
<xsl:param name="updates" select="document($fileName)" />
<xsl:variable name="updateFavourites" select="$updates/favourites/group" />
<xsl:template match="#* | node()">
<xsl:copy>
<xsl:apply-templates select="#* | node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="group">
<xsl:copy>
<xsl:apply-templates select="group[not(#id = $updateFavourites/#id)]" />
<xsl:apply-templates select="$updateFavourites" />
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
target file to transform is 'camper_fav.xml'
<?xml version="1.0" encoding="UTF-8"?>
<favourites version="1">
<group name="camper contact">
<item name="1: Parking" lat="156756060" lon="-3960972"/>
<item name="2: Nationale Veenpark" lat="189918180" lon="25290936"/>
<item name="3: Zeinissee" lat="169121412" lon="36456228"/>
<item name="4: Brasserie De Holle Boom" lat="187314192" lon="19858932"/>
</group>
</favourites>
And the source file that I wish to add 'CC_favourites.xml'
<?xml version="1.0" encoding="UTF-8"?>
<favourites version="1">
<group name="CC">
<item name="Abbey Wood Caravan Club Site " lat="185350860" lon="430956"/>
<item name="Aberbran Caravan Club Site " lat="187035158" lon="-12530027"/>
<item name="Alderstead Heath Club Site " lat="184619520" lon="-499968"/>
<item name="Gatwick Caravan Club Site " lat="184115484" lon="-727632"/>
<item name="Ashridge Club Site " lat="187354760" lon="-511282"/>
</group>
<group name="CC CL">
<item name="Burnside " lat="205635913" lon="-10403981"/>
<item name="Greenpark " lat="205478189" lon="-9216606"/>
<item name="Bridge House " lat="206721860" lon="-6786186"/>
<item name="Smithy Croft " lat="207530951" lon="-7672927"/>
<item name="The Croft Inn " lat="207509940" lon="-7790472"/>
</group>
</favourites>
Please can someone suggest what I'm doing wrong?


Your script contains a recursive call to the template matching group. Since there is no obvious criterion to terminate the recursion you will end up exhausting the stack memory.
Replacing the match pattern to favourites will help (untested though):
<xsl:template match="favourites">
<xsl:copy>
<xsl:apply-templates select="group[not(#id = $updateFavourites/#id)]" />
<xsl:apply-templates select="$updateFavourites" />
</xsl:copy>
</xsl:template>

Related

Replacing a child node with another node without affecting its sub node

I need to replace the child node with another node without affecting its sub nodes, I tried matching the child node but was unable to
This is the xml format
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Header>
<MessageId>{A124-B421-C325-D467}</MessageId>
<Action>find</Action>
</Header>
<Body>
<MessageParts xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Run xmlns="http://schemas.microsoft.com/dynamics/2008/01/documents/Run">
<RunObject class="entity">
<A1>NA</A1>
<A2>False</A2>
<Object class="entity">
<A3>02</A3>
</Object>
<A4>ER</A4>
</RunObject>
</Run>
</MessageParts>
</Body>
</Envelope>
This is the xml format that i require
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Header>
<MessageId>{A124-B421-C325-D467}</MessageId>
<Action>find</Action>
</Header>
<Body>
<Document>
<Item>
<A1>NA</A1>
<A2>False</A2>
<Base>
<A3>02</A3>
</Base>
<A4>ER</A4>
</Item>
</Document>
</Body>
</Envelope>
This is the code that i through which i tried to change the format
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:m="http://schemas.microsoft.com/dynamics/2011/01/documents/Message"
xmlns:r="http://schemas.microsoft.com/dynamics/2008/01/documents/Run"
exclude-result-prefixes="m r">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<!-- move all elements to no namespace -->
<xsl:template match="*">
<xsl:element name="{local-name()}">
<xsl:copy-of select="#*"/>
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<!-- rename MessageParts to Document + skip the Run wrapper -->
<xsl:template match="m:MessageParts">
<Document>
<xsl:apply-templates select="r:Run/*"/>
</Document>
</xsl:template>
<!-- rename RunObject to Item + reorder child nodes -->
<xsl:template match="r:RunObject[#class='entity']">
<Item>
<xsl:apply-templates select="r:A1" />
<xsl:apply-templates select="r:A2" />
<xsl:template match="r:Object[#class='entity']>
<Base>
<xsl:apply-templates select="r:A3" />
</Base>
</xsl:Template>
<xsl:apply-templates select="r:A4" />
</Item>
</xsl:template>
</xsl:stylesheet>
I tried matching the Object element but was unable to since i am already matching its parent element that is RunObject

Your mistake is that you cannot define a template inside of a template. So move the <xsl:template match="r:Object[#class='entity']> to the root level and add an <xsl:apply-templates select="r:Object" /> at its place.
The stylesheet could look like this:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:m="http://schemas.microsoft.com/dynamics/2011/01/documents/Message" xmlns:r="http://schemas.microsoft.com/dynamics/2008/01/documents/Run" exclude-result-prefixes="m r">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<!-- move all elements to no namespace -->
<xsl:template match="*">
<xsl:element name="{local-name()}">
<xsl:copy-of select="#*"/>
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<!-- rename MessageParts to Document + skip the Run wrapper -->
<xsl:template match="m:MessageParts">
<Document>
<xsl:apply-templates select="r:Run/*"/>
</Document>
</xsl:template>
<!-- rename RunObject to Item + reorder child nodes -->
<xsl:template match="r:RunObject[#class='entity']">
<Item>
<xsl:apply-templates select="r:A1" />
<xsl:apply-templates select="r:A2" />
<xsl:apply-templates select="r:Object" />
<xsl:apply-templates select="r:A4" />
</Item>
</xsl:template>
<xsl:template match="r:Object[#class='entity']">
<Base>
<xsl:apply-templates select="r:A3" />
</Base>
</xsl:template>
</xsl:stylesheet>
Its output is (nearly) as desired:
<?xml version="1.0" encoding="UTF-8"?>
<Envelope>
<Header>
<MessageId>{A124-B421-C325-D467}</MessageId>
<Action>find</Action>
</Header>
<Body>
<Document>
<Item>
<A1>NA</A1>
<A2>False</A2>
<Base>
<A3>02</A3>
</Base>
<A4>ER</A4>
</Item>
</Document>
</Body>
</Envelope>
I added the adjective "nearly", because this result has no namespace, while the sample of your desired outcome is in the namespace
xmlns:m="http://schemas.microsoft.com/dynamics/2011/01/documents/Message"
But because you defined a template that removes the namespaces of all elements, I did ignore that. I simply assume that this part of your question is erroneous.
If you like to change that, restrict the first template and add a general identity template:
<!-- move all elements to no namespace -->
<xsl:template match="*[namespace-uri() != 'http://schemas.microsoft.com/dynamics/2011/01/documents/Message']">
<xsl:element name="{local-name()}">
<xsl:copy-of select="#*"/>
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<xsl:template match="node()|#*">
<xsl:copy>
<xsl:apply-templates select="node()|#*"/>
</xsl:copy>
</xsl:template>
This would make your output containing the root namespace:
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Header>
<MessageId>{A124-B421-C325-D467}</MessageId>
<Action>find</Action>
</Header>
<Body>
<Document xmlns="">
<Item>
<A1>NA</A1>
<A2>False</A2>
<Base>
<A3>02</A3>
</Base>
<A4>ER</A4>
</Item>
</Document>
</Body>
</Envelope>

Removing Parent Nodes without affecting child nodes

The XML output i am getting is not in the format that i require so tried some code to change the format but was unable to
This is the output that i am getting
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Header>
<MessageId>{A124-B421-C325-D467}</MessageId>
<Action>find</Action>
</Header>
<Body>
<MessageParts xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Run xmlns="http://schemas.microsoft.com/dynamics/2008/01/documents/Run">
<RunObject class="entity">
<A1>NA</A1>
<A2>False</A2>
<A3>02</A3>
<A4>ER</A4>
</RunObject>
<RunObject class="entity">
<A1>NA</A1>
<A2>False</A2>
<A3>03</A3>
<A4>ER</A4>
</RunObject>
</Run>
</MessageParts>
</Body>
</Envelope>
This is the XML output that i require
<?xml version="1.0" encoding="UTF-8"?>
<Document>
<Item>
<A3>NA</A3>
<A4>False</A4>
<A2>02</A2>
<A1>ER</A1>
</Item>
<Item>
<A3>NA</A3>
<A4>False</A4>
<A2>03</A2>
<A1>ER</A1>
</Item>
</Document>
This is the code that i have used to change the format of the xml that i was getting
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:m="http://schemas.microsoft.com/dynamics/2011/01/documents/Message"
xmlns:r="http://schemas.microsoft.com/dynamics/2008/01/documents/Run"
exclude-result-prefixes="m r">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<!-- move all elements to no namespace -->
<xsl:template match="*">
<xsl:element name="{local-name()}">
<xsl:copy-of select="#*"/>
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<xsl:template match="m:Envelope"/>
<xsl:template match="m:Header"/>
<xsl:template match="m:MessageId"/>
<xsl:template match="m:Action"/>
<xsl:template match="m:Body"/>
<!-- rename MessageParts to Document + skip the Run wrapper -->
<xsl:template match="m:MessageParts">
<Document>
<xsl:apply-templates select="r:Run/*"/>
</Document>
</xsl:template>
<!-- rename RunObject to Item + reorder child nodes -->
<xsl:template match="r:RunObject[#class='entity']">
<Item>
<xsl:apply-templates select="r:A3" />
<xsl:apply-templates select="r:A4" />
<xsl:apply-templates select="r:A2" />
<xsl:apply-templates select="r:A1" />
</Item>
</xsl:template>
</xsl:stylesheet>
I tried the above code but was not able to change the format of the xml

Instead of:
<xsl:template match="m:Envelope"/>
that removes the Envelope node and all its descendants, you need to remove only the Envelope wrapper and continue processing its contents:
<xsl:template match="m:Envelope">
<xsl:apply-templates/>
</xsl:template>
Likewise for the other wrappers. In fact, you could replace all of these:
<xsl:template match="m:Envelope"/>
<xsl:template match="m:Header"/>
<xsl:template match="m:MessageId"/>
<xsl:template match="m:Action"/>
<xsl:template match="m:Body"/>
with:
<xsl:template match="m:*">
<xsl:apply-templates select="*"/>
</xsl:template>

Renaming the Parent node and Rearranging the Child nodes simultaneously in xml using xslt

How to rename the parent node and rearrange the child nodes simultaneously.
I tried some code but was unable to get the desired output.
This was the output that i was getting
<?xml version="1.0" encoding="UTF-8"?>
<Envelope xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Header> </Header>
<Body>
<MessageParts xmlns="http://schemas.microsoft.com/dynamics/2011/01/documents/Message">
<Run xmlns="http://schemas.microsoft.com/dynamics/2008/01/documents/Run">
<RunObject class="entity">
<A1>NA</A1>
<A2>False</A2>
<A3>02</A3>
<A4>ER</A4>
</RunObject>
<RunObject class="entity">
<A1>NA</A1>
<A2>False</A2>
<A3>03</A3>
<A4>ER</A4>
</RunObject>
</Run>
</MessageParts>
</Body>
</Envelope>
I wanted to remove the namespaces, rename the Parent tags and rearrange the child tags.
So i used this code
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:m="http://schemas.microsoft.com/dynamics/2011/01/documents/Message"
xmlns:r="http://schemas.microsoft.com/dynamics/2008/01/documents/Run"
exclude-result-prefixes="m r">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<!-- move all elements to no namespace -->
<xsl:template match="*">
<xsl:element name="{local-name()}">
<xsl:copy-of select="#*"/>
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<!-- rename MessageParts to Document + skip the Run wrapper -->
<xsl:template match="m:MessageParts">
<Document>
<xsl:apply-templates select="r:Run/*"/>
</Document>
</xsl:template>
<xsl:template match="r:RunObject[#class='entity']">
<xsl:copy>
<xsl:apply-templates select="A3" />
<xsl:apply-templates select="A4" />
<xsl:apply-templates select="A2" />
<xsl:apply-templates select="A1" />
</xsl:copy>
</xsl:template>
<!-- rename RunObject to Item -->
<xsl:template match="r:RunObject[#class='entity']">
<Item>
<xsl:apply-templates />
</Item>
</xsl:template>
</xsl:stylesheet>
I was able to remove the namespaces, rename the parent tags but was unable to rearrange the child tags. The output i got was this
?xml version="1.0" encoding="UTF-8"?>
<Envelope>
<Header> </Header>
<Body>
<Document>
<Item>
<A1>NA</A1>
<A2>False</A2>
<A3>02</A3>
<A4>ER</A4>
</Item>
<Item>
<A1>NA</A1>
<A2>False</A2>
<A3>03</A3>
<A4>ER</A4>
</Item>
</Document>
</Body>
</Envelope>
But the desired output is this
<?xml version="1.0" encoding="UTF-8"?>
<Envelope>
<Header> </Header>
<Body>
<Document>
<Item>
<A3>02</A3>
<A4>ER</A4>
<A2>False</A2>
<A1>NA</A1>
</Item>
<Item>
<A3>03</A3>
<A4>ER</A4>
<A2>False</A2>
<A1>NA</A1>
</Item>
</Document>
</Body>
</Envelope>

Problem #1:
You have two templates matching the same nodes:
<xsl:template match="r:RunObject[#class='entity']">
Only the last one of these will be applied.
Problem #2:
The elements A1, A2, A3 and A4 are in a namespace inherited from their Run ancestor. You need to use the prefix bound to that namespace when selecting them.
See if this works for you:
XSLT 1.0
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:m="http://schemas.microsoft.com/dynamics/2011/01/documents/Message"
xmlns:r="http://schemas.microsoft.com/dynamics/2008/01/documents/Run"
exclude-result-prefixes="m r">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<!-- move all elements to no namespace -->
<xsl:template match="*">
<xsl:element name="{local-name()}">
<xsl:copy-of select="#*"/>
<xsl:apply-templates/>
</xsl:element>
</xsl:template>
<!-- rename MessageParts to Document + skip the Run wrapper -->
<xsl:template match="m:MessageParts">
<Document>
<xsl:apply-templates select="r:Run/*"/>
</Document>
</xsl:template>
<!-- rename RunObject to Item + reorder child nodes -->
<xsl:template match="r:RunObject[#class='entity']">
<Item>
<xsl:apply-templates select="r:A3" />
<xsl:apply-templates select="r:A4" />
<xsl:apply-templates select="r:A2" />
<xsl:apply-templates select="r:A1" />
</Item>
</xsl:template>
</xsl:stylesheet>

Remove both duplicate records using XSLT

I am trying to remove both the duplicate records in an XML
I already can remove the second occurrence but I need to remove both records in this case.
This is the XSLT mapping that I have
<?xml version="1.0" encoding="UTF-8"?>
<xsl:transform version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:template match="item">
<xsl:copy-of select="." />
</xsl:template>
<xsl:template match="/ZTABLE/Record">
<ZTABLE>
<Record>
<xsl:apply-templates select="item[not(ID=preceding-sibling::item/ID)]" />
</Record>
</ZTABLE>
</xsl:template>
</xsl:transform>
The input XML is:
<ZTABLE>
<Record>
<item>
<ID>400400</ID>
</item>
<item>
<ID>100100</ID>
</item>
<item>
<ID>200200</ID>
</item>
<item>
<ID>300300</ID>
</item>
<item>
<ID>400400</ID>
</item>
</Record>
</ZTABLE>
The expected output is
<ZTABLE>
<Record>
<item>
<ID>100100</ID>
</item>
<item>
<ID>200200</ID>
</item>
<item>
<ID>300300</ID>
</Record>
</ZTABLE>

Try it this way:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="item" match="item" use="ID" />
<!-- identity transform -->
<xsl:template match="#*|node()">
<xsl:copy>
<xsl:apply-templates select="#*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="item[count(key('item', ID)) > 1]"/>
</xsl:stylesheet>
For explanation, read about Muenchian grouping.

DataMapper: tag to key relationship?

I'm using the DataMapper component in MuleStudio. I want to transform data that I have in this format
<item type="1" name="data">
<children name="action">
<values>login.01</values>
<children>
</item>
to something like this
<item>
<action>login.01</action>
</item>
Is this possible through Mule? Or will I need to make a custom Java parser?

Assuming the source is XML, no need to use DataMapper: a simple XSL-T transformer will do the trick:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="item">
<item>
<xsl:apply-templates />
</item>
</xsl:template>
<xsl:template match="children">
<xsl:element name="{#name}">
<xsl:apply-templates select="values/text()" />
</xsl:element>
</xsl:template>
</xsl:stylesheet>