org.mustangproject.ZUGFeRD.XMLUpgrader Maven / Gradle / Ivy
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FOSS Java library to read, write and validate european electronic invoices and orders in the UN/CEFACT
Cross Industry Invoice based formats Factur-X/ZUGFeRD, XRechnung and Order-X in your invoice PDFs.
The newest version!
package org.mustangproject.ZUGFeRD;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.charset.StandardCharsets;
import javax.xml.transform.Source;
import javax.xml.transform.Templates;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerException;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.URIResolver;
import javax.xml.transform.stream.StreamResult;
import javax.xml.transform.stream.StreamSource;
/***
* Uses a XSLT transformation to upgrade
* from ZUGFeRD 1 to ZUGFeRD 2 (=Factur-X1 ˜= XRechnung)
* This is an external functionality of the software and not very complete, for
* internal operations (generation of ZF2) of course the ZF2PullProvider is used
*/
public class XMLUpgrader {
static final ClassLoader CLASS_LOADER = XMLUpgrader.class.getClassLoader();
private static final String RESOURCE_PATH = "";
private TransformerFactory mFactory = null;
private Templates mXsltTemplate = null;
public XMLUpgrader() {
mFactory = new net.sf.saxon.TransformerFactoryImpl();
//fact = TransformerFactory.newInstance();
mFactory.setURIResolver(new ClasspathResourceURIResolver());
}
/***
* Takes a filename of a ZF1 XML file and returns the string of ZF2 XML
* @param xmlFilename the filename of the source
* @return String the updated XML
* @throws FileNotFoundException if the source could not be found
* @throws TransformerException if the source could not be transformed
*/
public String migrateFromV1ToV2(String xmlFilename) throws FileNotFoundException, TransformerException {
/**
* *
* http://www.unece.org/fileadmin/DAM/cefact/xml/XML-Naming-And-Design-Rules-V2_1.pdf
* http://www.ferd-net.de/upload/Dokumente/FACTUR-X_ZUGFeRD_2p0_Teil1_Profil_EN16931_1p03.pdf
* http://countwordsfree.com/xmlviewer
*/
mXsltTemplate = mFactory.newTemplates(new StreamSource(CLASS_LOADER.getResourceAsStream(RESOURCE_PATH + "stylesheets/ZF1ToZF2.xsl")));
ByteArrayOutputStream baos = new ByteArrayOutputStream();
applySchematronXsl(new FileInputStream(xmlFilename), baos);
String res = null;
res = baos.toString(StandardCharsets.UTF_8);
return res;
}
protected void applySchematronXsl(final InputStream xmlFile,
final OutputStream EN16931Outstream) throws TransformerException {
Transformer transformer = mXsltTemplate.newTransformer();
transformer.transform(new StreamSource(xmlFile), new StreamResult(EN16931Outstream));
}
private static class ClasspathResourceURIResolver implements URIResolver {
ClasspathResourceURIResolver() {
// Do nothing, just prevents synthetic access warning.
}
@Override
public Source resolve(String href, String base) throws TransformerException {
return new StreamSource(CLASS_LOADER.getResourceAsStream(RESOURCE_PATH + href));
}
}
}
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