Examples with XMLEventReader javax.xml.stream.XMLEventReader used on opensource projects

Example 16 with XMLEventReader

use of javax.xml.stream.XMLEventReader in project uPortal by Jasig.

the class XSLTComponent method getEventReader.

/* (non-Javadoc)
     * @see org.apereo.portal.rendering.StAXPipelineComponent#getXmlStreamReader(java.lang.Object, java.lang.Object)
     */
@Override
public PipelineEventReader<XMLEventReader, XMLEvent> getEventReader(HttpServletRequest request, HttpServletResponse response) {
    final PipelineEventReader<XMLEventReader, XMLEvent> pipelineEventReader = this.wrappedComponent.getEventReader(request, response);
    final Transformer transformer = this.transformerSource.getTransformer(request, response);
    //Setup a URIResolver based on the current resource loader
    transformer.setURIResolver(this.uriResolver);
    //Configure the Transformer via injected class
    if (this.xsltParameterSource != null) {
        final Map<String, Object> transformerParameters = this.xsltParameterSource.getParameters(request, response);
        if (transformerParameters != null) {
            this.logger.debug("{} - Setting Transformer Parameters: ", this.beanName, transformerParameters);
            for (final Map.Entry<String, Object> transformerParametersEntry : transformerParameters.entrySet()) {
                final String name = transformerParametersEntry.getKey();
                final Object value = transformerParametersEntry.getValue();
                if (value != null) {
                    transformer.setParameter(name, value);
                }
            }
        }
        final Properties outputProperties = this.xsltParameterSource.getOutputProperties(request, response);
        if (outputProperties != null) {
            this.logger.debug("{} - Setting Transformer Output Properties: ", this.beanName, outputProperties);
            transformer.setOutputProperties(outputProperties);
        }
    }
    //The event reader from the previous component in the pipeline
    final XMLEventReader eventReader = pipelineEventReader.getEventReader();
    //Wrap the event reader in a stream reader to avoid a JDK bug
    final XMLStreamReader streamReader;
    try {
        streamReader = new FixedXMLEventStreamReader(eventReader);
    } catch (XMLStreamException e) {
        throw new RuntimeException("Failed to create XMLStreamReader from XMLEventReader", e);
    }
    final Source xmlReaderSource = new StAXSource(streamReader);
    //Setup logging for the transform
    transformer.setErrorListener(this.errorListener);
    //Transform to a SAX ContentHandler to avoid JDK bug: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6775588
    final XMLEventBufferWriter eventWriterBuffer = new XMLEventBufferWriter();
    final ContentHandler contentHandler = StaxUtils.createLexicalContentHandler(eventWriterBuffer);
    contentHandler.setDocumentLocator(new LocatorImpl());
    final SAXResult outputTarget = new SAXResult(contentHandler);
    try {
        this.logger.debug("{} - Begining XML Transformation", this.beanName);
        transformer.transform(xmlReaderSource, outputTarget);
        this.logger.debug("{} - XML Transformation complete", this.beanName);
    } catch (TransformerException e) {
        throw new RuntimeException("Failed to transform document", e);
    }
    final String mediaType = transformer.getOutputProperty(OutputKeys.MEDIA_TYPE);
    final List<XMLEvent> eventBuffer = eventWriterBuffer.getEventBuffer();
    final XMLEventReader outputEventReader = new XMLEventBufferReader(eventBuffer.listIterator());
    final Map<String, String> outputProperties = pipelineEventReader.getOutputProperties();
    final PipelineEventReaderImpl<XMLEventReader, XMLEvent> pipelineEventReaderImpl = new PipelineEventReaderImpl<XMLEventReader, XMLEvent>(outputEventReader, outputProperties);
    pipelineEventReaderImpl.setOutputProperty(OutputKeys.MEDIA_TYPE, mediaType);
    return pipelineEventReaderImpl;
}

Example 17 with XMLEventReader

use of javax.xml.stream.XMLEventReader in project uPortal by Jasig.

the class StAXAttributeIncorporationComponent method getEventReader.

/* (non-Javadoc)
     * @see org.apereo.portal.rendering.PipelineComponent#getEventReader(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
@Override
public PipelineEventReader<XMLEventReader, XMLEvent> getEventReader(HttpServletRequest request, HttpServletResponse response) {
    //Get the reader from the parent and add the attribute incorporating wrapper
    final PipelineEventReader<XMLEventReader, XMLEvent> cachingEventReader = this.wrappedComponent.getEventReader(request, response);
    final XMLEventReader eventReader = new AttributeIncorporatingXMLEventReader(request, response, cachingEventReader.getEventReader());
    final Map<String, String> outputProperties = cachingEventReader.getOutputProperties();
    return new PipelineEventReaderImpl<XMLEventReader, XMLEvent>(eventReader, outputProperties);
}

Example 18 with XMLEventReader

use of javax.xml.stream.XMLEventReader in project uPortal by Jasig.

the class LoggingStAXComponent method getEventReader.

@Override
public PipelineEventReader<XMLEventReader, XMLEvent> getEventReader(HttpServletRequest request, HttpServletResponse response) {
    final PipelineEventReader<XMLEventReader, XMLEvent> pipelineEventReader = this.wrappedComponent.getEventReader(request, response);
    final XMLEventReader eventReader = pipelineEventReader.getEventReader();
    final LoggingXMLEventReader loggingEventReader = new LoggingXMLEventReader(eventReader);
    final Map<String, String> outputProperties = pipelineEventReader.getOutputProperties();
    return new PipelineEventReaderImpl<XMLEventReader, XMLEvent>(loggingEventReader, outputProperties);
}

Example 19 with XMLEventReader

use of javax.xml.stream.XMLEventReader in project uPortal by Jasig.

the class ChunkingEventReader method tryChunking.

private XMLEvent tryChunking(StartElement startElement) throws XMLStreamException {
    QName elementName = startElement.getName();
    CharacterEventSource characterEventSource = this.chunkingElements.get(elementName.getLocalPart());
    while (characterEventSource != null) {
        final XMLEvent previousEvent = this.getPreviousEvent();
        if (previousEvent != null && previousEvent.isStartElement()) {
            this.captureEvent = startElement;
            //It is left open since ATTRIBUTE events can follow a START_ELEMENT event.
            return EVENT_FACTORY.createCharacters("");
        }
        //Capture the characters written out to this point then clear the buffer
        this.captureCharacterDataEvent();
        //Get the generated events for the element
        final XMLEventReader parent = this.getParent();
        characterEventSource.generateCharacterEvents(this.request, parent, startElement, this.characterEvents);
        //Read the next event off the reader
        final XMLEvent nextEvent = parent.nextEvent();
        if (nextEvent.isStartElement()) {
            startElement = nextEvent.asStartElement();
            elementName = startElement.getName();
            characterEventSource = this.chunkingElements.get(elementName.getLocalPart());
        } else {
            return nextEvent;
        }
    }
    return startElement;
}

Example 20 with XMLEventReader

use of javax.xml.stream.XMLEventReader in project uPortal by Jasig.

the class BaseXsltDataUpgraderTest method testXsltUpgrade.

protected void testXsltUpgrade(final Resource xslResource, final PortalDataKey dataKey, final Resource inputResource, final Resource expectedResultResource, final Resource xsdResource) throws Exception {
    final XmlUtilities xmlUtilities = new XmlUtilitiesImpl() {

        @Override
        public Templates getTemplates(Resource stylesheet) throws TransformerConfigurationException, IOException {
            final TransformerFactory transformerFactory = TransformerFactory.newInstance();
            return transformerFactory.newTemplates(new StreamSource(stylesheet.getInputStream()));
        }
    };
    final XsltDataUpgrader xsltDataUpgrader = new XsltDataUpgrader();
    xsltDataUpgrader.setPortalDataKey(dataKey);
    xsltDataUpgrader.setXslResource(xslResource);
    xsltDataUpgrader.setXmlUtilities(xmlUtilities);
    xsltDataUpgrader.afterPropertiesSet();
    //Create XmlEventReader (what the JaxbPortalDataHandlerService has)
    final XMLInputFactory xmlInputFactory = xmlUtilities.getXmlInputFactory();
    final XMLEventReader xmlEventReader = xmlInputFactory.createXMLEventReader(inputResource.getInputStream());
    final Node sourceNode = xmlUtilities.convertToDom(xmlEventReader);
    final DOMSource source = new DOMSource(sourceNode);
    final DOMResult result = new DOMResult();
    xsltDataUpgrader.upgradeData(source, result);
    //XSD Validation
    final String resultString = XmlUtilitiesImpl.toString(result.getNode());
    if (xsdResource != null) {
        final Schema schema = this.loadSchema(new Resource[] { xsdResource }, XMLConstants.W3C_XML_SCHEMA_NS_URI);
        final Validator validator = schema.newValidator();
        try {
            validator.validate(new StreamSource(new StringReader(resultString)));
        } catch (Exception e) {
            throw new XmlTestException("Failed to validate XSLT output against provided XSD", resultString, e);
        }
    }
    XMLUnit.setIgnoreWhitespace(true);
    XMLUnit.setNormalizeWhitespace(true);
    try {
        Diff d = new Diff(new InputStreamReader(expectedResultResource.getInputStream()), new StringReader(resultString));
        assertTrue("Upgraded data doesn't match expected data: " + d, d.similar());
    } catch (Exception e) {
        throw new XmlTestException("Failed to assert similar between XSLT output and expected XML", resultString, e);
    } catch (Error e) {
        throw new XmlTestException("Failed to assert similar between XSLT output and expected XML", resultString, e);
    }
}