With XSL-FO I want to publish dynamic links to a PDF file. I found here on StackOverflow and with google many examples with a static url, but no example with a dynamic url. That's why I post this question. I want to generate the link from a xml file (the link is the value of the attribute 'href' in the element 'topicref'):
<?xml version="1.0" encoding="utf-8"?>
<map outputclass="DTVMap">
<title>Testdocument DTVmap</title>
<topicref format="dita" scope="local" href="ObjSt/bla/DTV/Testdocument_14.06.dita" navtitle="Testdocument 14.06" />
</map>
I used in the xsl-fo:
<fo:basic-link external-destination="url(<xsl:value-of select="map/topicref/@href"/>)" color="blue" text-
decoration="underline"><xsl:value-of select="map/topicref/@href"/></fo:basic-link>
And I get a message that: "The value of attribute "external-destination" associated with an element type "null" must not contain the '<' character."
I tried to get the link with adding the code below in the xsl-fo instead of the 'basic-link external-destination' from above.
<xsl:value-of select="map/topicref/@href"/>
<xsl:param name="link" select="map/topicref/@href" />
<fo:basic-link color="blue" text-decoration="underline">
<xsl:attribute name="external-destination">
<xsl:value-of select="$link" />
</xsl:attribute>
<xsl:value-of select="$link" />
</fo:basic-link>
There is a link in the generated PDF now, but the link is: 'file:///C/ws/fo_xslt/ObjSt/bla/DTV/Testdocument_14.06.dita' in stead of: 'ObjSt/bla/DTV/Testdocument_14.06.dita'.
The question is; how can I get a link like: 'ObjSt/bla/DTV/Testdocument 14.06.dita' so, without 'file:///C/ws/fo_xslt'? 'C:/ws/fo_xslt' is the directory where I put the generated PDF. Or: How can I get the link which only contains the value of the href attribute? Thanks
PS: The Java class I use in order to generate a pdf is (just to give some more background):
package foXslt;
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
import javax.xml.transform.Result;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.sax.SAXResult;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
import org.apache.fop.apps.*;
public class FopPdf {
public static void main(String[] args) {
FopPdf fOPPdfDemo = new FopPdf();
try {
fOPPdfDemo.convertToPDF();
} catch (FOPException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (TransformerException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
* Method that will convert the given XML to PDF
* @throws IOException
* @throws FOPException
* @throws TransformerException
*/
public void convertToPDF() throws IOException, FOPException, TransformerException {
// the XSL FO file
File xsltFile = new File("C:\\ws\\fo_xslt\\foxslt.xsl");
// the XML file which provides the input
StreamSource xmlSource = new StreamSource(new File("C:\\ws\\fo_xslt\\xmlDTVMapMetLink.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("C:\\ws\\fo_xslt\\foxslt.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();
}
}
