I am trying to convert the following URI parameters and respective values, using substring function. but it is giving error, obvious because it is not a string.
FROM: http://host/URI/api/abc/xml?xxx=a-b-c&pqr=123
TO: http://host/URI/api/abc/xml?yyy=d-e-f&pqr=123
Input is from a variable.
XSLT:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:dp="http://www.datapower.com/extensions" xmlns:func="http://exslt.org/functions" xmlns:str="http://exslt.org/strings" xmlns:dpfunc="http://www.datapower.com/extensions/functions" xmlns:dpconfig="http://www.datapower.com/param/config" xmlns:regexp="http://exslt.org/regular-expressions" extension-element-prefixes="dp func dpfunc dpconfig regexp" exclude-result-prefixes="dp func dpfunc dpconfig regexp">
<xsl:template match="/">
<xsl:variable name="currentURI" select="dp:variable('var://service/URI')"/>
<xsl:variable name="new-uri" select="regexp:replace($currentURI, 'xxx', 'yyy')"/>
<xsl:variable name="SubStringBeforeyyy" select="substring-before($new-uri, 'yyy=')"/>
<xsl:variable name="SubStringAfteryyy" select="substring-after($new-uri, '&' )"/> <!-- ERROR: -->
<xsl:variable name="NewParmValue" select="'d-e-f'"/>
<xsl:variable name="NewURI" select="concat($SubStringBeforeyyy, $NewParmValue, $SubStringAfteryyy)"/>
</xsl:template>
</xsl:stylesheet>
Error from xmlSpy is:
XML Production Error: Character ''' within text ''' does not fulfill production 'Name'.
XSLT is XML, so to write an ampersand(&) character you need to use
<xsl:variable name="SubStringAfteryyy" select="substring-after($new-uri, '&' )" />
Related
I'm trying to create a standard-use XSLT that will perform a given task based upon a user-provided XPATH expression as an XSLT parameter.
That is, I need something like this:
<xsl:template match="$paramContainingXPATH">
<!-- perform the task on the node(s) in the given xpath -->
</xsl:template>
For example, suppose I have some XML:
<xml>
<nodeA>whatever</nodeA>
<nodeB>whatever</nodeB>
<nodeC>whatever</nodeC>
<nodeD>whatever</nodeD>
<nodeE>whatever</nodeE>
</xml>
The XSLT needs to transform just a node or nodes matching a provided XPATH expression. So, if the xslt parameter is "/xml/nodeC", it processes nodeC. If the xslt parameter is "*[local-name() = 'nodeC' or local-name() = 'nodeE']", it processes nodeC and nodeE.
This should work for absolutely any XML message. That is, the XSLT cannot have any direct knowledge of the content of the XML. So, it could be a raw XML, or a SOAP Envelope.
I was guessing I might need to grab all the nodes matching the xpath, and then looping over them calling a named template, and using the standard identity template for all other nodes.
All advice is appreciated.
If you really need that feature with XSLT 1.0 or 2.0 then I think you should consider writing one stylesheet that takes that string parameter with the XPath expression and then simply generates the code of a second stylesheet where the XPath expression is used as a match pattern and the other needed templates like the identity template are included statically. Dynamic XPath evaluation is only available in XSLT 3.0 or in earlier versions as a proprietary extension mechanism.
You cannot match a template using a parameter - but you can traverse the tree and compare the path of each node with the given path. Here's a simple example:
XSLT 1.0
<?xml version="1.0" encoding="UTF-8"?>
<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:param name="path" select="'/world/America/USA/California'"/>
<xsl:template match="/">
<root>
<xsl:apply-templates select="*"/>
</root>
</xsl:template>
<xsl:template match="*">
<xsl:variable name="path-to-me">
<xsl:for-each select="ancestor-or-self::node()">
<xsl:value-of select="name()" />
<xsl:if test="position()!=last()">
<xsl:text>/</xsl:text>
</xsl:if>
</xsl:for-each>
</xsl:variable>
<xsl:if test="$path=$path-to-me">
<xsl:call-template name="action"/>
</xsl:if>
<xsl:apply-templates select="*"/>
</xsl:template>
<xsl:template name="action">
<return>
<xsl:value-of select="." />
</return>
</xsl:template>
</xsl:stylesheet>
Applied to a slightly more ambitious test input of:
<world>
<Europe>
<Germany>1</Germany>
<France>2</France>
<Italy>3</Italy>
</Europe>
<America>
<USA>
<NewYork>4</NewYork>
<California>5</California>
</USA>
<Canada>6</Canada>
</America>
</world>
the result will be:
<?xml version="1.0" encoding="UTF-8"?>
<root>
<return>5</return>
</root>
This could be made more efficient by passing the accumulated path as a parameter of the recursive template, so that each node needs only to add its own name to the chain.
Note:
The given path must be absolute;
Predicates (including positional predicates) and attributes are not implemented in this. They probably could be, with a bit more effort;
Namespaces are ignored (I don't see how you could pass an XPath as a parameter and include namespaces anyway).
If your processor supports an evaluate() extension function, you could forgo the calculated text path and test for intersection instead.
Edit:
Here's an example using EXSLT dyn:evaluate() and set:intersection():
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:dyn="http://exslt.org/dynamic"
xmlns:set="http://exslt.org/sets"
extension-element-prefixes="dyn set">
<xsl:output method="xml" version="1.0" encoding="UTF-8" indent="yes"/>
<xsl:param name="path" select="'/world/America/USA/California'"/>
<xsl:variable name="path-set" select="dyn:evaluate($path)" />
<xsl:template match="/">
<root>
<xsl:apply-templates select="*"/>
</root>
</xsl:template>
<xsl:template match="*">
<xsl:if test="set:intersection(. , $path-set)">
<xsl:call-template name="action"/>
</xsl:if>
<xsl:apply-templates select="*"/>
</xsl:template>
<xsl:template name="action">
<return>
<xsl:value-of select="." />
</return>
</xsl:template>
</xsl:stylesheet>
Note that this will also work with with paths like:
/world/America/USA/*[2]
//California
and many others that the text comparison method could not accommodate.
I'm sending the element name as a param to the XSLT
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xs="http://www.w3.org/2001/XMLSchema" version="2.0">
<xsl:output method="xml"/>
<xsl:param name="user"/>
<xsl:template match="/">
<xsl:call-template name="generic" />
</xsl:template>
<xsl:template name="generic">
<count><xsl:value-of select="count(.//*[local-name()=$user])"/></count>
</xsl:template>
</xsl:stylesheet>
I hope this could help!
I have a scenario where the input(source) xml is having an element which contains a valid well formed xml as string. I am trying to write an xslt that would give me the text value of that desired element which contains the payload xml. In essence, output should only be text of the element that contains it. Here is what I am trying, am I missing something obvious here. I am using xslt 1.0
Thanks.
Input xml:
<BatchOrders xmlns="http://Microsoft.ABCD.OracleDB/STMT">
<BatchOrdersRECORD>
<BatchOrdersRECORD>
<ActualPayload>
<PersonName>
<PersonGivenName>CaptainJack</PersonGivenName>
<PersonMiddleName>Walter</PersonMiddleName>
<PersonSurName>Sparrow</PersonSurName>
<PersonNameSuffixText>Sr.</PersonNameSuffixText>
</PersonName>
</ActualPayload>
</BatchOrdersRECORD>
</BatchOrdersRECORD>
</BatchOrders>
Xslt:
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"
>
<xsl:output method="xml" indent="yes"/>
<xsl:template match="text()|#*" name="sourcecopy" mode="xml-to-string">
<xsl:value-of select="*"/>
</xsl:template>
<xsl:template name="xml-to-string-called-template">
<xsl:param name ="param1">
<xsl:element name ="DestPayload">
<xsl:text disable-output-escaping ="yes"><![CDATA[</xsl:text>
<xsl:call-template name ="sourcecopy"/>
<xsl:text disable-output-escaping ="yes">]]></xsl:text>
</xsl:element>
</xsl:param>
</xsl:template>
</xsl:stylesheet>
Desired Output:
<PersonName>
<PersonGivenName>CaptainJack</PersonGivenName>
<PersonMiddleName>Walter</PersonMiddleName>
<PersonSurName>Sparrow</PersonSurName>
<PersonNameSuffixText>Sr.</PersonNameSuffixText>
</PersonName>
Do you really need the mode="xml-to-string"?
Change
<xsl:template match="text()|#*" name="sourcecopy" mode="xml-to-string">
<xsl:value-of select="*"/>
</xsl:template>
to
<xsl:template match="text()|#*" name="sourcecopy">
<xsl:value-of select="." disable-output-escaping ="yes"/>
</xsl:template>
Would this template suffice?
I am newbie to XSLT.
I have a requirement to read a URL and convert some of its values into XML.
I wrote a XSLT that has to take URL as the input value and create a XML file from some of the content of the URL value.
When I debugged the XSLT in XMLSPY, I noticed that the URL value is not being picked up by inputValue variable in the below code. I am not sure if my approach to input the URL and the template match are wrong.
Any help is appreciated.
Thanks in advance.
Input to XSLT:
http://host:port/abc/xyz1/6xyz6?qq=123&pp=3
Here the XSLT:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:nnc="Nnc" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions">
<xsl:output method="xml" encoding="UTF-8" indent="yes"/>
<xsl:param name="inVal" select="xs:string(http://host:port/abc/xyz1/6xyz6?qq=123&pp=3)"/>
<xsl:template match="/">
<xsl:variable name="inputValue" select="$inVal"/>
<xsl:if test="string-length($inputValue)=0">
<xsl:message terminate="yes">
inputValue is blank
</xsl:message>
</xsl:if>
<xsl:variable name="value" as="xs:string" select="substring-after($inputValue, 'abc/' )"/>
<xsl:variable name="tokenizedValues" select="tokenize($value,'/')"/>
<xsl:for-each select="$tokenizedValues">
<xsl:if test="position() = 1">
<id>
<xsl:value-of select="."/>
</id>
</xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
The desired XML output:
<?xml version="1.0" encoding="UTF-8"?>
<id>6xyz6</id>
<qq>123</qq>
<pp>123</pp>
Well if you want to pull in a text file then with XSLT 2.0 and later you can do that but not by simply using a URL, you need to call the unparsed-text function e.g.
<xsl:variable name="inputData" as="xs:string" select="unparsed-text('http://example.com/foo')"/>
See http://www.w3.org/TR/xslt20/#unparsed-text, depending on the encoding of your text document you need to add a second parameter when calling the function.
Given a node, eg.
<SI elem1="TI" elem2="FN" elem3="4099450222" elem4="TM" elem5="4094110000" elem6="MT" elem7="SP" elem8="MC" elem9="DS" elem10="DA" elem11="16"/>
I need my output to be "DA" if any attribute is "DA", or the value of the next attribute if any attribute is "BA" (i.e. if elem7="BA elem8="03" I want "03" output)
There is no danger of multiple matches, so if an attribute is "BA", there will be no "DA" attribute, but the values could occur in any element
I've looked into the attribute:: tag, but I'm not sure if this will fulfil my needs.
any help greatly appreciated
I made an assumption that your attributes has names in form of elemN where N = 1,2,3...,
and they are ordered accordingly.
The following XSLT:
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:fn="http://www.w3.org/2005/xpath-functions">
<xsl:output method="text" />
<xsl:template match="/SI">
<xsl:choose>
<xsl:when test="some $i in #* satisfies $i='DA'">
<xsl:text>DA</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:variable name="attr" select="concat('elem', xs:decimal(substring-after(#*[.='BA']/name(), 'elem')) + 1)" />
<xsl:value-of select="#*[name() = $attr]" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
applied to the following input XML:
<?xml version="1.0" encoding="UTF-8"?>
<SI elem1="TI" elem2="FN" elem3="4099450222" elem4="TM" elem5="4094110000" elem6="MT" elem7="SP" elem8="MC" elem9="DS" elem10="DA" elem11="16" />
gives DA as the output.
And applied to the following XML:
<?xml version="1.0" encoding="UTF-8"?>
<SI elem1="TI" elem2="FN" elem3="4099450222" elem4="TM" elem5="4094110000" elem6="MT" elem7="BA" elem8="03" elem9="DS" elem10="DAs" elem11="16" />
gives 03 as the output.
EDIT
Here's the XSLT 1.0 version (tested under Altova XMLSpy):
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text" />
<xsl:template match="/">
<xsl:apply-templates select="SI/#*" />
</xsl:template>
<xsl:template match="#*">
<xsl:choose>
<xsl:when test=". = 'DA'">
<xsl:text>DA</xsl:text>
</xsl:when>
<xsl:when test=".='BA'">
<xsl:variable name="attr" select="concat('elem', substring-after(name(), 'elem') + 1)" />
<xsl:value-of select="/SI/#*[name() = $attr]" />
</xsl:when>
<xsl:otherwise/>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
I need my output to be "DA" if any attribute is "DA", or the value of
the next attribute if any attribute is "BA" (i.e. if elem7="BA
elem8="03" I want "03" output)
There is no danger of multiple matches, so if an attribute is "BA",
there will be no "DA" attribute, but the values could occur in any
element
This single XPath expression produces the wanted value:
string(/*/#*[. = 'DA']
|
/*/#*[name()
=
concat('elem', substring-after(name(/*/#*[.='BA']), 'elem') +1)]
)
And here is the complete transformation:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="text"/>
<xsl:template match="/">
<xsl:copy-of select=
"string(/*/#*[. = 'DA']
|
/*/#*[name()
=
concat('elem', substring-after(name(/*/#*[.='BA']), 'elem') +1)]
)"/>
</xsl:template>
</xsl:stylesheet>
As can be seen this transformation simply evaluates the XPath expression and copies the result of the evaluation to the output.
When the transformation is applied on this XML document (your 2nd case):
<SI elem1="TI"
elem2="FN"
elem3="4099450222"
elem4="TM"
elem5="4094110000"
elem6="MT"
elem7="BA"
elem8="03"
elem9="DS"
elem10="DD"
elem11="16"/>
the result is:
03
When the same transformation is applied on the originally provided XML document (your 1st case):
<SI elem1="TI"
elem2="FN"
elem3="4099450222"
elem4="TM"
elem5="4094110000"
elem6="MT"
elem7="SP"
elem8="MC"
elem9="DS"
elem10="DA"
elem11="16"/>
again the wanted, correct result is produced:
DA
Explanation:
Proper use of the XPath union operator |, and the functions string(), substring-after(), name() and `concat().
I wanted to use a dynamic variable name in the select statement in xslt.
<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:template match="/">
<xsl:variable name="input" select="input/message" />
<xsl:variable name="Name" select="'MyName'" />
<xsl:variable name="Address" select="MyAddress" />
<xsl:variable name="output" select="concat('$','$input')" /> <!-- This is not working -->
<output>
<xsl:value-of select="$output" />
</output>
</xsl:template>
The possible values for the variable "input" is 'Name' or 'Address'.
The select statement of the output variable should have a dynamic variable name based on the value of input variable. I don't want to use xsl:choose. I wanted to select the value dynamically.
Please provide me a solution.
Thanks,
dhinu
XSLT 1.0 and XSLT 2.0 don't have dynamic evaluation.
Solution for your problem:
This transformation:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:my="my:my">
<xsl:output method="text"/>
<my:values>
<name>MyName</name>
<address>MyAdress</address>
</my:values>
<xsl:template match="/">
<xsl:variable name="vSelector"
select="input/message"/>
<xsl:value-of select=
"document('')/*/my:values/*[name()=$vSelector]"/>
</xsl:template>
</xsl:stylesheet>
when applied on the following XML document:
<input>
<message>address</message>
</input>
produces the wanted, correct result:
MyAdress
when the same transformation is applied on this XML document:
<input>
<message>name</message>
</input>
again the wanted, correct result is produced:
MyName
Finally: If you do not wish to use the document() function, but would go for using the xxx:node-set() extension function, then this solution (looking very similar) is what you want, where you may consult your XSLTprocessor documentation for the exact namespace of the extension:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:ext="http://exslt.org/common" >
<xsl:output method="text"/>
<xsl:variable name="vValues">
<name>MyName</name>
<address>MyAdress</address>
</xsl:variable>
<xsl:template match="/">
<xsl:variable name="vSelector"
select="input/message"/>
<xsl:value-of select=
"ext:node-set($vValues)/*[name()=$vSelector]"/>
</xsl:template>
</xsl:stylesheet>
Beside #Dimitre's good answer, for this particular case (output string value) you could also use:
<xsl:variable name="output"
select="concat(substring($Name, 1 div ($input = 'Name')),
substring($Address, 1 div ($input = 'Address')))"/>