Re: Xalan ESLT function date:date-add

[Jan Hoskens]

If you're trying to work with dates, you can use the java extensions in 
xalan. This way you can call any java stuff you need.

namespace to include:
xmlns:java="http://xml.apache.org/xslt/java";
<xsl:variable name="locale" 
select="java:java.util.Locale.new('nl','BE')"/> <!-- Class.new creates 
new instance -->
<xsl:variable name="currentCalendar" 
select="java:java.util.Calendar.getInstance($locale)"/> <!-- static 
factory method -->
<xsl:variable name="currentDate" select="java:getTime($currentCalendar)"/>
<xsl:variable name="dateFormat" 
select="java:java.text.DateFormat.getDateTimeInstance(java.text.DateFormat.MEDIUM, 
java.text.DateFormat.MEDIUM, $locale)"/>
<xsl:variable name="TimeStamp" select="java:format($dateFormat, 
$currentDate)"/> <!-- normal functions, first give object on which to 
perform the function, then arguments-->

Kind Regards,
Jan
gerritjan wrote:
Hello,
This XSLT:
<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:date="http://exslt.org/dates-and-times";
extension-element-prefixes="date xsl" >
<xsl:import href="date.add.function.xsl" />
<xsl:output method="xml"/>
<xsl:param name="p_dagen_terug"/>
<xsl:template match="onderwerpen">
<xsl:variable name="d1"><xsl:value-of 
select="date:date()"/></xsl:variable>
<xsl:variable name="d2"><xsl:value-of select="substring-before ($d1, 
'+02:00')"/></xsl:variable>
<xsl:variable name="d5"><xsl:value-of 
select="date:date-add($d2,'-P50D')"/></xsl:variable>
<basis>
1
<xsl:value-of select="$d1"/>
2
<xsl:value-of select="$d2"/>
5
<xsl:value-of select="$d5"/>
</basis>
</xsl:template>

</xsl:stylesheet>
Gives this error;
org.apache.cocoon.ProcessingException: Failed to execute pipeline.: 
java.lang.RuntimeException: java.lang.RuntimeException: 
java.lang.NullPointerException

I'm not sure if Xalan supports this EXSLT function natively , but with 
'import' I was hoping to use this EXSLT function anyway
by the way: without the 'import' line I get the same error...
The 'imported' file is downloadable from www.exslt.org

*/_Gerritjan Koekkoek_/* 

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