Examples with TransformerHandler javax.xml.transform.sax.TransformerHandler used on opensource projects

Example 56 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project knime-core by knime.

the class WorkflowSetMetaInfoEditor method doSave.

/**
 * {@inheritDoc}
 */
@Override
public void doSave(final IProgressMonitor monitor) {
    try {
        URI path = ((IURIEditorInput) getEditorInput()).getURI();
        File inputFile = new File(path);
        SAXTransformerFactory fac = (SAXTransformerFactory) TransformerFactory.newInstance();
        TransformerHandler handler = fac.newTransformerHandler();
        Transformer t = handler.getTransformer();
        t.setOutputProperty(OutputKeys.METHOD, "xml");
        t.setOutputProperty(OutputKeys.INDENT, "yes");
        OutputStream out = new FileOutputStream(inputFile);
        handler.setResult(new StreamResult(out));
        handler.startDocument();
        AttributesImpl atts = new AttributesImpl();
        atts.addAttribute(null, null, "nrOfElements", "CDATA", "" + m_elements.size());
        handler.startElement(null, null, "KNIMEMetaInfo", atts);
        monitor.beginTask("Saving meta information...", m_elements.size());
        for (MetaGUIElement element : m_elements) {
            element.saveTo(handler);
            monitor.worked(1);
        }
        handler.endElement(null, null, "KNIMEMetaInfo");
        handler.endDocument();
        out.close();
        setDirty(false);
    } catch (Exception e) {
        LOGGER.error("An error ocurred while saving " + getEditorInput().toString(), e);
    } finally {
        monitor.done();
    }
}

Example 57 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project knime-core by knime.

the class PMMLDiscretizePreprocPortObjectSpec method createTransformerHandlerForSave.

static TransformerHandler createTransformerHandlerForSave(final OutputStream out) throws TransformerConfigurationException, SAXException {
    SAXTransformerFactory fac = (SAXTransformerFactory) TransformerFactory.newInstance();
    TransformerHandler handler = fac.newTransformerHandler();
    Transformer t = handler.getTransformer();
    // t.setOutputProperty(OutputKeys.METHOD, "xml");
    t.setOutputProperty(OutputKeys.INDENT, "yes");
    handler.setResult(new StreamResult(out));
    handler.startDocument();
    return handler;
}

Example 58 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project sqlite-jna by gwenn.

the class SQLXMLImpl method setResult.

@Override
public <T extends Result> T setResult(Class<T> resultClass) throws SQLException {
    checkAndSwitchWritable();
    if (resultClass == null || DOMResult.class.equals(resultClass)) {
        final DOMResult domResult = new DOMResult();
        src = new DOMSrc(domResult);
        return (T) domResult;
    } else if (SAXResult.class.equals(resultClass)) {
        try {
            SAXTransformerFactory transformerFactory = (SAXTransformerFactory) SAXTransformerFactory.newInstance();
            TransformerHandler transformerHandler = transformerFactory.newTransformerHandler();
            transformerHandler.setResult(new StreamResult(createWriter()));
            return resultClass.cast(new SAXResult(transformerHandler));
        } catch (TransformerException e) {
            throw new SQLiteException(null, "Unable to create SAXResult.", ErrCodes.WRAPPER_SPECIFIC, e);
        }
    } else if (StreamResult.class.equals(resultClass)) {
        return resultClass.cast(new StreamResult(createWriter()));
    } else if (StAXResult.class.equals(resultClass)) {
        try {
            XMLOutputFactory xof = XMLOutputFactory.newInstance();
            XMLStreamWriter xsw = xof.createXMLStreamWriter(createWriter());
            return resultClass.cast(new StAXResult(xsw));
        } catch (XMLStreamException e) {
            throw new SQLiteException(null, "Unable to create StAXResult.", ErrCodes.WRAPPER_SPECIFIC, e);
        }
    }
    throw new SQLiteException("Unknown XML Result class: " + resultClass, ErrCodes.WRAPPER_SPECIFIC);
}

Example 59 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project syncope by apache.

the class DefaultReportJobDelegate method execute.

@Transactional
@Override
public void execute(final String reportKey) throws JobExecutionException {
    Report report = reportDAO.find(reportKey);
    if (report == null) {
        throw new JobExecutionException("Report " + reportKey + " not found");
    }
    if (!report.isActive()) {
        LOG.info("Report {} not active, aborting...", reportKey);
        return;
    }
    // 1. create execution
    ReportExec execution = entityFactory.newEntity(ReportExec.class);
    execution.setStatus(ReportExecStatus.STARTED);
    execution.setStart(new Date());
    execution.setReport(report);
    execution = reportExecDAO.save(execution);
    report.add(execution);
    report = reportDAO.save(report);
    // 2. define a SAX handler for generating result as XML
    TransformerHandler handler;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ZipOutputStream zos = new ZipOutputStream(baos);
    zos.setLevel(Deflater.BEST_COMPRESSION);
    try {
        handler = TRANSFORMER_FACTORY.newTransformerHandler();
        Transformer serializer = handler.getTransformer();
        serializer.setOutputProperty(OutputKeys.ENCODING, StandardCharsets.UTF_8.name());
        serializer.setOutputProperty(OutputKeys.INDENT, "yes");
        // a single ZipEntry in the ZipOutputStream
        zos.putNextEntry(new ZipEntry(report.getName()));
        // streaming SAX handler in a compressed byte array stream
        handler.setResult(new StreamResult(zos));
    } catch (Exception e) {
        throw new JobExecutionException("While configuring for SAX generation", e, true);
    }
    execution.setStatus(ReportExecStatus.RUNNING);
    execution = reportExecDAO.save(execution);
    status.set("Starting");
    // 3. actual report execution
    StringBuilder reportExecutionMessage = new StringBuilder();
    try {
        // report header
        handler.startDocument();
        AttributesImpl atts = new AttributesImpl();
        atts.addAttribute("", "", ReportXMLConst.ATTR_NAME, ReportXMLConst.XSD_STRING, report.getName());
        handler.startElement("", "", ReportXMLConst.ELEMENT_REPORT, atts);
        status.set("Generating report header");
        // iterate over reportlet instances defined for this report
        for (int i = 0; i < report.getReportlets().size() && !interrupt; i++) {
            Optional<Reportlet> reportlet = ImplementationManager.buildReportlet(report.getReportlets().get(i));
            if (reportlet.isPresent()) {
                try {
                    status.set("Invoking reportlet " + report.getReportlets().get(i).getKey());
                    reportlet.get().extract(handler, status);
                } catch (Throwable t) {
                    LOG.error("While executing reportlet {} for report {}", reportlet, reportKey, t);
                    execution.setStatus(ReportExecStatus.FAILURE);
                    Throwable effective = t instanceof ReportException ? t.getCause() : t;
                    reportExecutionMessage.append(ExceptionUtils2.getFullStackTrace(effective)).append("\n==================\n");
                }
            }
        }
        if (interrupt) {
            LOG.debug("Report job {} interrupted", reportKey);
            interrupted = true;
        }
        // report footer
        status.set("Generating report footer");
        handler.endElement("", "", ReportXMLConst.ELEMENT_REPORT);
        handler.endDocument();
        if (!ReportExecStatus.FAILURE.name().equals(execution.getStatus())) {
            execution.setStatus(ReportExecStatus.SUCCESS);
        }
    } catch (Exception e) {
        execution.setStatus(ReportExecStatus.FAILURE);
        reportExecutionMessage.append(ExceptionUtils2.getFullStackTrace(e));
        throw new JobExecutionException(e, true);
    } finally {
        status.set("Completed");
        try {
            zos.closeEntry();
            zos.close();
            baos.close();
        } catch (IOException e) {
            LOG.error("While closing StreamResult's backend", e);
        }
        execution.setExecResult(baos.toByteArray());
        execution.setMessage(reportExecutionMessage.toString());
        execution.setEnd(new Date());
        reportExecDAO.save(execution);
    }
}

Example 60 with TransformerHandler

use of javax.xml.transform.sax.TransformerHandler in project syncope by apache.

the class XSLTTransformer method setSAXConsumer.

/**
 * {@inheritDoc}
 */
@Override
protected void setSAXConsumer(final SAXConsumer consumer) {
    TransformerHandler transformerHandler;
    try {
        transformerHandler = TRAX_FACTORY.newTransformerHandler(this.templates);
    } catch (Exception e) {
        throw new SetupException("Could not initialize transformer handler.", e);
    }
    if (this.parameters != null) {
        final Transformer transformer = transformerHandler.getTransformer();
        this.parameters.forEach((name, values) -> {
            // is valid XSLT parameter name
            if (XSLT_PARAMETER_NAME_PATTERN.matcher(name).matches()) {
                transformer.setParameter(name, values);
            }
        });
    }
    final SAXResult result = new SAXResult();
    result.setHandler(consumer);
    // According to TrAX specs, all TransformerHandlers are LexicalHandlers
    result.setLexicalHandler(consumer);
    transformerHandler.setResult(result);
    final SAXConsumerAdapter saxConsumerAdapter = new SAXConsumerAdapter();
    saxConsumerAdapter.setContentHandler(transformerHandler);
    super.setSAXConsumer(saxConsumerAdapter);
}