Example usage for javax.xml.bind JAXBContext createJAXBIntrospector

Introduction

In this page you can find the example usage for javax.xml.bind JAXBContext createJAXBIntrospector.

Prototype

public JAXBIntrospector createJAXBIntrospector() 

Source Link

Document

Creates a JAXBIntrospector object that can be used to introspect JAXB objects.

Usage

From source file:example.Main.java

public static void main(String[] args) throws Exception {
    Class[] classes = new Class[3];
    classes[0] = A.class;
    classes[1] = B.class;
    classes[2] = C.class;

    JAXBContext jc = JAXBContext.newInstance(classes);

    JAXBIntrospector ji = jc.createJAXBIntrospector();
    Map<QName, Class> classByQName = new HashMap<QName, Class>(classes.length);
    for (Class clazz : classes) {
        QName qName = ji.getElementName(clazz.newInstance());
        if (null != qName) {
            classByQName.put(qName, clazz);
        }// ww  w . ja va  2s.  c om
    }

    QName qName = new QName("http://www.example.com", "EH");
    System.out.println(classByQName.get(qName));
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    Object value = "Hello World";

    JAXBContext jc = JAXBContext.newInstance(String.class, Bar.class);
    JAXBIntrospector introspector = jc.createJAXBIntrospector();
    Marshaller marshaller = jc.createMarshaller();
    if (null == introspector.getElementName(value)) {
        JAXBElement jaxbElement = new JAXBElement(new QName("ROOT"), Object.class, value);
        marshaller.marshal(jaxbElement, System.out);
    } else {/*w ww .j  a  v  a 2 s .  co m*/
        marshaller.marshal(value, System.out);
    }
}

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From source file:gov.nih.nci.ncicb.tcga.dcc.common.jaxb.JAXBUtil.java

/**
 * Convenience method for retrieving and instance of {@link JAXBIntrospector} for JAXB generated
 * objects from a specific JAXB package name.
 *
 * @param jaxbPackageName - a string representing the package name of JAXB generated objects
 * @return an instance of {@link JAXBIntrospector} that corresponds to the JAXB package name
 * @throws JAXBException if an error occurs while creating a JAXB context
 *//*from   www  .j  ava2 s.  c  o  m*/
public static JAXBIntrospector getJAXBIntrospector(final String jaxbPackageName) throws JAXBException {

    if (jaxbPackageName != null) {
        final JAXBContext context = JAXBContext.newInstance(jaxbPackageName);
        return context.createJAXBIntrospector();
    } else {
        throw new JAXBException(
                "Could not instantiate JAXB introspector because the JAXB package namespace was null");
    }
}

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From source file:org.castor.jaxb.CastorJAXBIntrospectorTest.java

/**
 * Sets up the test environment./*w w  w . j a va  2  s. c  om*/
 *
 * @throws javax.xml.bind.JAXBException
 *             if any error occurs
 */
@Before
public void setUp() throws JAXBException {

    JAXBContext context = JAXBContext.newInstance(Entity.class);
    introspector = context.createJAXBIntrospector();
}

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From source file:org.opennms.netmgt.ackd.readers.HypericAckProcessor.java

/**
 * <p>parseHypericAlerts</p>
 *
 * @param reader a {@link java.io.Reader} object.
 * @return a {@link java.util.List} object.
 * @throws javax.xml.bind.JAXBException if any.
 * @throws javax.xml.stream.XMLStreamException if any.
 *///from  www  .ja  v  a2 s  . c o  m
public static List<HypericAlertStatus> parseHypericAlerts(Reader reader)
        throws JAXBException, XMLStreamException {
    List<HypericAlertStatus> retval = new ArrayList<HypericAlertStatus>();

    // Instantiate a JAXB context to parse the alert status
    JAXBContext context = JAXBContext
            .newInstance(new Class[] { HypericAlertStatuses.class, HypericAlertStatus.class });
    XMLInputFactory xmlif = XMLInputFactory.newInstance();
    XMLEventReader xmler = xmlif.createXMLEventReader(reader);
    EventFilter filter = new EventFilter() {
        @Override
        public boolean accept(XMLEvent event) {
            return event.isStartElement();
        }
    };
    XMLEventReader xmlfer = xmlif.createFilteredReader(xmler, filter);
    // Read up until the beginning of the root element
    StartElement startElement = (StartElement) xmlfer.nextEvent();
    // Fetch the root element name for {@link HypericAlertStatus} objects
    String rootElementName = context.createJAXBIntrospector().getElementName(new HypericAlertStatuses())
            .getLocalPart();
    if (rootElementName.equals(startElement.getName().getLocalPart())) {
        Unmarshaller unmarshaller = context.createUnmarshaller();
        // Use StAX to pull parse the incoming alert statuses
        while (xmlfer.peek() != null) {
            Object object = unmarshaller.unmarshal(xmler);
            if (object instanceof HypericAlertStatus) {
                HypericAlertStatus alertStatus = (HypericAlertStatus) object;
                retval.add(alertStatus);
            }
        }
    } else {
        // Try to pull in the HTTP response to give the user a better idea of what went wrong
        StringBuffer errorContent = new StringBuffer();
        LineNumberReader lineReader = new LineNumberReader(reader);
        try {
            String line;
            while (true) {
                line = lineReader.readLine();
                if (line == null) {
                    break;
                } else {
                    errorContent.append(line.trim());
                }
            }
        } catch (IOException e) {
            errorContent.append("Exception while trying to print out message content: " + e.getMessage());
        }

        // Throw an exception and include the erroneous HTTP response in the exception text
        throw new JAXBException("Found wrong root element in Hyperic XML document, expected: \""
                + rootElementName + "\", found \"" + startElement.getName().getLocalPart() + "\"\n"
                + errorContent.toString());
    }
    return retval;
}

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From source file:org.apache.axis2.jaxws.message.databinding.JAXBUtils.java

private static JAXBIntrospector internalCreateIntrospector(final JAXBContext context) {
    JAXBIntrospector i;//from w w  w .j a  v  a 2s .  c o m
    i = (JAXBIntrospector) AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            return context.createJAXBIntrospector();
        }
    });
    return i;
}

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