I am very new with XSLT and using stylesheets, so maybe I am missing something obvious but I am calling the format-dateTime function in my xsl like below
<xsl:value-of
select="format-dateTime(header/requestDetail/startDate,'[D01]/[M01]/[Y] [H01]:[m01]:[s01]','en',(),())" />
but this returns with the following error message
SystemId Unknown; Line #215; Column #118; Could not find function: format-dateTime
SystemId Unknown; Line #215; Column #118; A location path was expected, but the following token was encountered: )
SystemId Unknown; Line #215; Column #118; A location path was expected, but the following token was encountered: )
SystemId Unknown; Line #215; Column #118; function token not found.
(Location of error unknown)java.lang.NullPointerException
Exception in thread "main" java.lang.NullPointerException
Could someone tell me as to why this is happening, because as far as I have read format-dateTime is built in function for XSLT 2.0. I also have the latest version of SAXON in my maven dependencies.
Here is the complete xsl file
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format" version="1.0">
<xsl:output encoding="UTF-8" indent="yes" method="xml"
standalone="no" omit-xml-declaration="no" />
<xsl:template match="users-data">
<fo:root language="EN">
<fo:layout-master-set>
<fo:simple-page-master master-name="A4-portrail"
page-height="297mm" page-width="210mm" margin-top="5mm"
margin-bottom="5mm" margin-left="5mm" margin-right="5mm">
<fo:region-body margin-top="25mm" margin-bottom="20mm" />
<fo:region-before region-name="xsl-region-before"
extent="25mm" display-align="before" precedence="true" />
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="A4-portrail">
<fo:static-content flow-name="xsl-region-before">
<fo:table table-layout="fixed" width="100%" font-size="10pt"
border-color="black" border-width="0.4mm" border-style="solid">
<fo:table-column column-width="proportional-column-width(20)" />
<fo:table-column column-width="proportional-column-width(45)" />
<fo:table-column column-width="proportional-column-width(20)" />
<fo:table-body>
<fo:table-row>
<fo:table-cell text-align="left" display-align="center"
padding-left="2mm">
<fo:block>
Bill Id:
<xsl:value-of select="header-section/data-type/@id" />
, Date:
<xsl:value-of select="header-section/process-date" />
</fo:block>
</fo:table-cell>
<fo:table-cell text-align="center" display-align="center">
<fo:block font-size="150%">
<fo:basic-link external-destination="http://www.example.com">XXX COMPANY
</fo:basic-link>
</fo:block>
<fo:block space-before="3mm" />
</fo:table-cell>
<fo:table-cell text-align="right" display-align="center"
padding-right="2mm">
<fo:block>
<xsl:value-of select="data-type" />
</fo:block>
<fo:block display-align="before" space-before="6mm">
Page
<fo:page-number />
of
<fo:page-number-citation ref-id="end-of-document" />
</fo:block>
</fo:table-cell>
</fo:table-row>
</fo:table-body>
</fo:table>
</fo:static-content>
<fo:flow flow-name="xsl-region-body" border-collapse="collapse"
reference-orientation="0">
<fo:block>MONTHLY BILL REPORT</fo:block>
<fo:table table-layout="fixed" width="100%" font-size="10pt"
border-color="black" border-width="0.35mm" border-style="solid"
text-align="center" display-align="center" space-after="5mm">
<fo:table-column column-width="proportional-column-width(20)" />
<fo:table-column column-width="proportional-column-width(30)" />
<fo:table-column column-width="proportional-column-width(25)" />
<fo:table-column column-width="proportional-column-width(50)" />
<fo:table-body font-size="95%">
<fo:table-row height="8mm">
<fo:table-cell>
<fo:block>Full Name</fo:block>
</fo:table-cell>
<fo:table-cell>
<fo:block>Postal Code</fo:block>
</fo:table-cell>
<fo:table-cell>
<fo:block>National ID</fo:block>
</fo:table-cell>
<fo:table-cell>
<fo:block>Payment</fo:block>
</fo:table-cell>
</fo:table-row>
<xsl:for-each select="user-bill-data">
<fo:table-row>
<fo:table-cell>
<fo:block>
<xsl:value-of select="full-name" />
</fo:block>
</fo:table-cell>
<fo:table-cell>
<fo:block>
<xsl:value-of select="postal-code" />
</fo:block>
</fo:table-cell>
<fo:table-cell>
<fo:block>
<xsl:value-of select="national-id" />
</fo:block>
</fo:table-cell>
<fo:table-cell>
<fo:block>
<xsl:value-of
select="format-dateTime(header/requestDetail/startDate,'[D01]/[M01]/[Y] [H01]:[m01]:[s01]','en',(),())" />
</fo:block>
</fo:table-cell>
<fo:table-cell border="1pt solid black"
padding-left="2pt" text-align="left" padding-right="2pt">
<fo:block font="8pt Helvetica">
<xsl:value-of
select="format-dateTime(header/requestDetail/endDate,'[D01]/[M01]/[Y] [H01]:[m01]:[s01]','en',(),())" />
</fo:block>
</fo:table-cell>
<xsl:value-of select="price" />
</fo:block>
</fo:table-cell>
</fo:table-row>
</xsl:for-each>
</fo:table-body>
</fo:table>
<fo:block id="end-of-document">
<fo:instream-foreign-object>
<svg width="200mm" height="150mm" version="1.1"
xmlns="http://www.w3.org/2000/svg">
<path
d="M153 334
C153 334 151 334 151 334
C151 339 153 344 156 344
C164 344 171 339 171 334
C171 322 164 314 156 314
C142 314 131 322 131 334
C131 350 142 364 156 364
C175 364 191 350 191 334
C191 311 175 294 156 294
C131 294 111 311 111 334
C111 361 131 384 156 384
C186 384 211 361 211 334
C211 300 186 274 156 274"
style="fill:yellow;stroke:red;stroke-width:2" />
</svg>
</fo:instream-foreign-object>
</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>
</xsl:template>
</xsl:stylesheet>
Here is the Java class, which uses FOP to transform into PDF
public final class PDFConverter {
private PDFConverter() {
}
private static final String RESOURCES_DIR;
private static final String OUTPUT_DIR;
static {
RESOURCES_DIR = "src//main//resources//";
OUTPUT_DIR = "src//main//resources//output//";
}
public static void main(final String[] args) {
try {
convertToPDF();
} catch (FOPException | IOException | TransformerException e) {
e.printStackTrace();
}
}
public static void convertToPDF() throws IOException, FOPException, TransformerException {
// the XSL FO file
File xsltFile = new File(RESOURCES_DIR + "//template.xsl");
// the XML file which provides the input
StreamSource xmlSource = new StreamSource(new File(RESOURCES_DIR + "//data.xml"));
// create an instance of fop factory
FopFactory fopFactory = FopFactory.newInstance(new File(".").toURI());
// a user agent is needed for transformation
FOUserAgent foUserAgent = fopFactory.newFOUserAgent();
// Setup output
OutputStream out;
out = new java.io.FileOutputStream(OUTPUT_DIR + "//output.pdf");
try {
// Construct fop with desired output format
Fop fop = fopFactory.newFop(MimeConstants.MIME_PDF, foUserAgent, out);
// Setup XSLT
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource(xsltFile));
// Resulting SAX events (the generated FO) must be piped through to
// FOP
Result res = new SAXResult(fop.getDefaultHandler());
// Start XSLT transformation and FOP processing
// That's where the XML is first transformed to XSL-FO and then
// PDF is created
transformer.transform(xmlSource, res);
} finally {
out.close();
}
}
}
See http://saxonica.com/html/documentation/using-xsl/embedding/jaxp-transformation.html on how to make sure that Saxon is used as the Transformer, it says
If you want to be sure that Saxon (and not some other XSLT engine) is loaded to perform your transformations, you need to know the class name of Saxon's implementation of the JAXP TransformerFactory class. This depends on which Saxon edition you are using:
Any: net.sf.saxon.TransformerFactoryImpl. This will create a Saxon configuration based on the software and license file that are available at run-time on the classpath.
Based on that you can change TransformerFactory factory = TransformerFactory.newInstance(); to TransformerFactory factory = new net.sf.saxon.TransformerFactoryImpl(); and then your code should use Saxon.
Also don't forget to set version="3.0" in your XSLT code if you use Saxon 9.8 HE as it does not support running in backwards compatibility code for version="1.0" stylesheets.