Example usage for javax.xml.stream XMLStreamConstants START_ELEMENT

List of usage examples for javax.xml.stream XMLStreamConstants START_ELEMENT

Introduction

In this page you can find the example usage for javax.xml.stream XMLStreamConstants START_ELEMENT.

Prototype

int START_ELEMENT

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Document

Indicates an event is a start element

Usage

From source file:edu.harvard.iq.dvn.ingest.statdataio.impl.plugins.ddi.DDIFileReader.java

private String getElementText(XMLStreamReader xmlr) throws XMLStreamException {
    if (xmlr.getEventType() != XMLStreamConstants.START_ELEMENT) {
        throw new XMLStreamException("parser must be on START_ELEMENT to read next text", xmlr.getLocation());
    }//from ww  w  .ja  v a2s. c o m
    int eventType = xmlr.next();
    StringBuffer content = new StringBuffer();
    while (eventType != XMLStreamConstants.END_ELEMENT) {
        if (eventType == XMLStreamConstants.CHARACTERS || eventType == XMLStreamConstants.CDATA
                || eventType == XMLStreamConstants.SPACE
        /* || eventType == XMLStreamConstants.ENTITY_REFERENCE*/) {
            content.append(xmlr.getText());
        } else if (eventType == XMLStreamConstants.PROCESSING_INSTRUCTION
                || eventType == XMLStreamConstants.COMMENT
                || eventType == XMLStreamConstants.ENTITY_REFERENCE) {
            // skipping
        } else if (eventType == XMLStreamConstants.END_DOCUMENT) {
            throw new XMLStreamException("unexpected end of document when reading element text content");
        } else if (eventType == XMLStreamConstants.START_ELEMENT) {
            throw new XMLStreamException("element text content may not contain START_ELEMENT",
                    xmlr.getLocation());
        } else {
            throw new XMLStreamException("Unexpected event type " + eventType, xmlr.getLocation());
        }
        eventType = xmlr.next();
    }
    return content.toString();
}

From source file:com.microsoft.windowsazure.storage.table.TableParser.java

/**
 * Reserved for internal use. Parses the operation response as an entity. Parses the result returned in the
 * specified stream in AtomPub format into a {@link TableResult} containing an entity of the specified class type
 * projected using the specified resolver.
 * //from  w  w w.j  a v a 2  s  . c  om
 * @param xmlr
 *            An <code>XMLStreamReader</code> on the input stream.
 * @param clazzType
 *            The class type <code>T</code> implementing {@link TableEntity} for the entity returned. Set to
 *            <code>null</code> to ignore the returned entity and copy only response properties into the
 *            {@link TableResult} object.
 * @param resolver
 *            An {@link EntityResolver} instance to project the entity into an instance of type <code>R</code>. Set
 *            to <code>null</code> to return the entity as an instance of the class type <code>T</code>.
 * @param opContext
 *            An {@link OperationContext} object used to track the execution of the operation.
 * @return
 *         A {@link TableResult} containing the parsed entity result of the operation.
 * 
 * @throws XMLStreamException
 *             if an error occurs while accessing the stream.
 * @throws ParseException
 *             if an error occurs while parsing the stream.
 * @throws InstantiationException
 *             if an error occurs while constructing the result.
 * @throws IllegalAccessException
 *             if an error occurs in reflection while parsing the result.
 * @throws StorageException
 *             if a storage service error occurs.
 */
private static <T extends TableEntity, R> TableResult parseAtomEntity(final XMLStreamReader xmlr,
        final Class<T> clazzType, final EntityResolver<R> resolver, final OperationContext opContext)
        throws XMLStreamException, ParseException, InstantiationException, IllegalAccessException,
        StorageException {
    int eventType = xmlr.getEventType();
    final TableResult res = new TableResult();

    xmlr.require(XMLStreamConstants.START_ELEMENT, null, ODataConstants.ENTRY);

    String etag = StringEscapeUtils.unescapeHtml4(
            xmlr.getAttributeValue(ODataConstants.DATA_SERVICES_METADATA_NS, ODataConstants.ETAG));

    res.setEtag(etag);

    while (xmlr.hasNext()) {
        eventType = xmlr.next();
        if (eventType == XMLStreamConstants.CHARACTERS) {
            xmlr.getText();
            continue;
        }

        final String name = xmlr.getName().toString();

        if (eventType == XMLStreamConstants.START_ELEMENT) {
            if (name.equals(ODataConstants.BRACKETED_ATOM_NS + ODataConstants.ID)) {
                Utility.readElementFromXMLReader(xmlr, ODataConstants.ID);
            } else if (name
                    .equals(ODataConstants.BRACKETED_DATA_SERVICES_METADATA_NS + ODataConstants.PROPERTIES)) {
                // Do read properties
                if (resolver == null && clazzType == null) {
                    return res;
                } else {
                    res.setProperties(readAtomProperties(xmlr, opContext));
                    break;
                }
            }
        }
    }

    // Move to end Content
    eventType = xmlr.next();
    if (eventType == XMLStreamConstants.CHARACTERS) {
        eventType = xmlr.next();
    }

    xmlr.require(XMLStreamConstants.END_ELEMENT, null, ODataConstants.CONTENT);

    eventType = xmlr.next();
    if (eventType == XMLStreamConstants.CHARACTERS) {
        eventType = xmlr.next();
    }

    xmlr.require(XMLStreamConstants.END_ELEMENT, null, ODataConstants.ENTRY);

    String rowKey = null;
    String partitionKey = null;
    Date timestamp = null;

    // Remove core properties from map and set individually
    EntityProperty tempProp = res.getProperties().remove(TableConstants.PARTITION_KEY);
    if (tempProp != null) {
        partitionKey = tempProp.getValueAsString();
    }

    tempProp = res.getProperties().remove(TableConstants.ROW_KEY);
    if (tempProp != null) {
        rowKey = tempProp.getValueAsString();
    }

    tempProp = res.getProperties().remove(TableConstants.TIMESTAMP);
    if (tempProp != null) {
        timestamp = tempProp.getValueAsDate();
    }

    if (resolver != null) {
        // Call resolver
        res.setResult(resolver.resolve(partitionKey, rowKey, timestamp, res.getProperties(), res.getEtag()));
    } else if (clazzType != null) {
        // Generate new entity and return
        final T entity = clazzType.newInstance();
        entity.setEtag(res.getEtag());

        entity.setPartitionKey(partitionKey);
        entity.setRowKey(rowKey);
        entity.setTimestamp(timestamp);

        entity.readEntity(res.getProperties(), opContext);

        res.setResult(entity);
    }

    return res;
}

From source file:com.microsoft.windowsazure.storage.table.TableParser.java

/**
 * Reserved for internal use. Parses the operation response as a collection of entities. Reads entity data from the
 * specified input stream using the specified class type and optionally projects each entity result with the
 * specified resolver into an {@link ODataPayload} containing a collection of {@link TableResult} objects.
 * // w  ww  .  j av a2s. co  m
 * @param inStream
 *            The <code>InputStream</code> to read the data to parse from.
 * @param clazzType
 *            The class type <code>T</code> implementing {@link TableEntity} for the entities returned. Set to
 *            <code>null</code> to ignore the returned entities and copy only response properties into the
 *            {@link TableResult} objects.
 * @param resolver
 *            An {@link EntityResolver} instance to project the entities into instances of type <code>R</code>. Set
 *            to <code>null</code> to return the entities as instances of the class type <code>T</code>.
 * @param opContext
 *            An {@link OperationContext} object used to track the execution of the operation.
 * @return
 *         An {@link ODataPayload} containing a collection of {@link TableResult} objects with the parsed operation
 *         response.
 * 
 * @throws XMLStreamException
 *             if an error occurs while accessing the stream.
 * @throws ParseException
 *             if an error occurs while parsing the stream.
 * @throws InstantiationException
 *             if an error occurs while constructing the result.
 * @throws IllegalAccessException
 *             if an error occurs in reflection while parsing the result.
 * @throws StorageException
 *             if a storage service error occurs.
 */
@SuppressWarnings("unchecked")
private static <T extends TableEntity, R> ODataPayload<?> parseAtomQueryResponse(final InputStream inStream,
        final Class<T> clazzType, final EntityResolver<R> resolver, final OperationContext opContext)
        throws XMLStreamException, ParseException, InstantiationException, IllegalAccessException,
        StorageException {
    ODataPayload<T> corePayload = null;
    ODataPayload<R> resolvedPayload = null;
    ODataPayload<?> commonPayload = null;

    if (resolver != null) {
        resolvedPayload = new ODataPayload<R>();
        commonPayload = resolvedPayload;
    } else {
        corePayload = new ODataPayload<T>();
        commonPayload = corePayload;
    }

    final XMLStreamReader xmlr = Utility.createXMLStreamReaderFromStream(inStream);
    int eventType = xmlr.getEventType();
    xmlr.require(XMLStreamConstants.START_DOCUMENT, null, null);
    eventType = xmlr.next();

    xmlr.require(XMLStreamConstants.START_ELEMENT, null, ODataConstants.FEED);
    // skip feed chars
    eventType = xmlr.next();

    while (xmlr.hasNext()) {
        eventType = xmlr.next();

        if (eventType == XMLStreamConstants.CHARACTERS) {
            xmlr.getText();
            continue;
        }

        final String name = xmlr.getName().toString();

        if (eventType == XMLStreamConstants.START_ELEMENT) {
            if (name.equals(ODataConstants.BRACKETED_ATOM_NS + ODataConstants.ENTRY)) {
                final TableResult res = parseAtomEntity(xmlr, clazzType, resolver, opContext);
                if (corePayload != null) {
                    corePayload.tableResults.add(res);
                }

                if (resolver != null) {
                    resolvedPayload.results.add((R) res.getResult());
                } else {
                    corePayload.results.add((T) res.getResult());
                }
            }
        } else if (eventType == XMLStreamConstants.END_ELEMENT
                && name.equals(ODataConstants.BRACKETED_ATOM_NS + ODataConstants.FEED)) {
            break;
        }
    }

    xmlr.require(XMLStreamConstants.END_ELEMENT, null, ODataConstants.FEED);
    return commonPayload;
}

From source file:com.microsoft.windowsazure.storage.table.TableParser.java

/**
 * Reserved for internal use. Reads the properties of an entity from the stream into a map of property names to
 * typed values. Reads the entity data as an AtomPub Entry Resource from the specified {@link XMLStreamReader} into
 * a map of <code>String</code> property names to {@link EntityProperty} data typed values.
 * /*  w w w.  j a v  a 2  s . c  o m*/
 * @param xmlr
 *            The <code>XMLStreamReader</code> to read the data from.
 * @param opContext
 *            An {@link OperationContext} object used to track the execution of the operation.
 * 
 * @return
 *         A <code>java.util.HashMap</code> containing a map of <code>String</code> property names to
 *         {@link EntityProperty} data typed values found in the entity data.
 * @throws XMLStreamException
 *             if an error occurs accessing the stream.
 * @throws ParseException
 *             if an error occurs converting the input to a particular data type.
 */
private static HashMap<String, EntityProperty> readAtomProperties(final XMLStreamReader xmlr,
        final OperationContext opContext) throws XMLStreamException, ParseException {
    int eventType = xmlr.getEventType();
    xmlr.require(XMLStreamConstants.START_ELEMENT, null, ODataConstants.PROPERTIES);
    final HashMap<String, EntityProperty> properties = new HashMap<String, EntityProperty>();

    while (xmlr.hasNext()) {
        eventType = xmlr.next();
        if (eventType == XMLStreamConstants.CHARACTERS) {
            xmlr.getText();
            continue;
        }

        if (eventType == XMLStreamConstants.START_ELEMENT
                && xmlr.getNamespaceURI().equals(ODataConstants.DATA_SERVICES_NS)) {
            final String key = xmlr.getLocalName();
            String val = Constants.EMPTY_STRING;
            String edmType = null;

            if (xmlr.getAttributeCount() > 0) {
                edmType = xmlr.getAttributeValue(ODataConstants.DATA_SERVICES_METADATA_NS, ODataConstants.TYPE);
            }

            // move to chars
            eventType = xmlr.next();

            if (eventType == XMLStreamConstants.CHARACTERS) {
                val = xmlr.getText();

                // end element
                eventType = xmlr.next();
            }

            xmlr.require(XMLStreamConstants.END_ELEMENT, null, key);

            final EntityProperty newProp = new EntityProperty(val, EdmType.parse(edmType));
            properties.put(key, newProp);
        } else if (eventType == XMLStreamConstants.END_ELEMENT && xmlr.getName().toString()
                .equals(ODataConstants.BRACKETED_DATA_SERVICES_METADATA_NS + ODataConstants.PROPERTIES)) {
            // End read properties
            break;
        }
    }

    xmlr.require(XMLStreamConstants.END_ELEMENT, null, ODataConstants.PROPERTIES);
    return properties;
}

From source file:ca.uhn.fhir.parser.XmlParser.java

private void encodeXhtml(XhtmlDt theDt, XMLStreamWriter theEventWriter) throws XMLStreamException {
    if (theDt == null || theDt.getValue() == null) {
        return;/* w  w w.ja va 2 s  .  co  m*/
    }

    boolean firstElement = true;
    for (XMLEvent event : theDt.getValue()) {
        switch (event.getEventType()) {
        case XMLStreamConstants.ATTRIBUTE:
            Attribute attr = (Attribute) event;
            if (isBlank(attr.getName().getPrefix())) {
                if (isBlank(attr.getName().getNamespaceURI())) {
                    theEventWriter.writeAttribute(attr.getName().getLocalPart(), attr.getValue());
                } else {
                    theEventWriter.writeAttribute(attr.getName().getNamespaceURI(),
                            attr.getName().getLocalPart(), attr.getValue());
                }
            } else {
                theEventWriter.writeAttribute(attr.getName().getPrefix(), attr.getName().getNamespaceURI(),
                        attr.getName().getLocalPart(), attr.getValue());
            }

            break;
        case XMLStreamConstants.CDATA:
            theEventWriter.writeCData(((Characters) event).getData());
            break;
        case XMLStreamConstants.CHARACTERS:
        case XMLStreamConstants.SPACE:
            String data = ((Characters) event).getData();
            theEventWriter.writeCharacters(data);
            break;
        case XMLStreamConstants.COMMENT:
            theEventWriter.writeComment(((Comment) event).getText());
            break;
        case XMLStreamConstants.END_ELEMENT:
            theEventWriter.writeEndElement();
            break;
        case XMLStreamConstants.ENTITY_REFERENCE:
            EntityReference er = (EntityReference) event;
            theEventWriter.writeEntityRef(er.getName());
            break;
        case XMLStreamConstants.NAMESPACE:
            Namespace ns = (Namespace) event;
            theEventWriter.writeNamespace(ns.getPrefix(), ns.getNamespaceURI());
            break;
        case XMLStreamConstants.START_ELEMENT:
            StartElement se = event.asStartElement();
            if (firstElement) {
                if (StringUtils.isBlank(se.getName().getPrefix())) {
                    String namespaceURI = se.getName().getNamespaceURI();
                    if (StringUtils.isBlank(namespaceURI)) {
                        namespaceURI = "http://www.w3.org/1999/xhtml";
                    }
                    theEventWriter.writeStartElement(se.getName().getLocalPart());
                    theEventWriter.writeDefaultNamespace(namespaceURI);
                } else {
                    String prefix = se.getName().getPrefix();
                    String namespaceURI = se.getName().getNamespaceURI();
                    theEventWriter.writeStartElement(prefix, se.getName().getLocalPart(), namespaceURI);
                    theEventWriter.writeNamespace(prefix, namespaceURI);
                }
                firstElement = false;
            } else {
                if (isBlank(se.getName().getPrefix())) {
                    if (isBlank(se.getName().getNamespaceURI())) {
                        theEventWriter.writeStartElement(se.getName().getLocalPart());
                    } else {
                        if (StringUtils.isBlank(se.getName().getPrefix())) {
                            theEventWriter.writeStartElement(se.getName().getLocalPart());
                            // theEventWriter.writeDefaultNamespace(se.getName().getNamespaceURI());
                        } else {
                            theEventWriter.writeStartElement(se.getName().getNamespaceURI(),
                                    se.getName().getLocalPart());
                        }
                    }
                } else {
                    theEventWriter.writeStartElement(se.getName().getPrefix(), se.getName().getLocalPart(),
                            se.getName().getNamespaceURI());
                }
                for (Iterator<?> attrIter = se.getAttributes(); attrIter.hasNext();) {
                    Attribute next = (Attribute) attrIter.next();
                    theEventWriter.writeAttribute(next.getName().getLocalPart(), next.getValue());
                }
            }
            break;
        case XMLStreamConstants.DTD:
        case XMLStreamConstants.END_DOCUMENT:
        case XMLStreamConstants.ENTITY_DECLARATION:
        case XMLStreamConstants.NOTATION_DECLARATION:
        case XMLStreamConstants.PROCESSING_INSTRUCTION:
        case XMLStreamConstants.START_DOCUMENT:
            break;
        }

    }
}

From source file:net.sourceforge.subsonic.service.ITunesParser.java

private String readNextTag(XMLStreamReader streamReader) throws XMLStreamException {
    while (streamReader.next() != XMLStreamConstants.START_ELEMENT) {
    }//w  w w .  j  a v a  2  s  . c  o m
    return streamReader.getElementText();
}

From source file:net.sourceforge.subsonic.service.ITunesParser.java

private String readKey(XMLStreamReader streamReader) {
    try {//from   w  w  w. j  a v a 2s  . c om
        if (streamReader.getEventType() == XMLStreamConstants.START_ELEMENT
                && "key".equals(streamReader.getName().getLocalPart())) {
            return streamReader.getElementText();
        }
    } catch (XMLStreamException e) {
        // TODO
        System.out.println(streamReader.getName().getLocalPart() + " " + e);
    }
    return null;
}

From source file:net.xy.jcms.controller.configurations.parser.TranslationParser.java

/**
 * parses an xml configuration from an input streams. throwes
 * IllegalArgumentExceptions in case of syntax error.
 * //from  w  ww.  j  a  v a2 s  .c  o m
 * @param in
 * @return value
 * @throws XMLStreamException
 * @throws ClassNotFoundException
 *             in case there are problems with an params type converter
 */
public static TranslationRule[] parse(final InputStream in, final ClassLoader loader)
        throws XMLStreamException, ClassNotFoundException {
    @SuppressWarnings("deprecation")
    final XMLInputFactory factory = XMLInputFactory.newInstance(
            "com.sun.xml.internal.stream.XMLInputFactoryImpl", TranslationParser.class.getClassLoader());
    LOG.info("XMLInputFactory loaded: " + factory.getClass().getName());
    factory.setProperty("javax.xml.stream.isCoalescing", true);
    // not supported be the reference implementation
    // factory.setProperty(XMLInputFactory.IS_VALIDATING, Boolean.TRUE);
    final XMLStreamReader parser = factory.createXMLStreamReader(in);
    while (parser.hasNext()) {
        final int event = parser.next();
        if (event == XMLStreamConstants.START_ELEMENT && parser.getName().getLocalPart().equals("rules")) {
            return parseRules(parser, loader);
        }
    }
    throw new IllegalArgumentException("No rules section found.");
}

From source file:net.xy.jcms.controller.configurations.parser.TranslationParser.java

/**
 * parses an single file translation/* w ww  . j a  v a2 s  .  co  m*/
 * 
 * @param in
 * @param loader
 * @return value
 * @throws XMLStreamException
 * @throws ClassNotFoundException
 *             in case there are problems with an params type converter
 */
public static TranslationRule parseSingle(final InputStream in, final ClassLoader loader)
        throws XMLStreamException, ClassNotFoundException {
    @SuppressWarnings("deprecation")
    final XMLInputFactory factory = XMLInputFactory.newInstance(
            "com.sun.xml.internal.stream.XMLInputFactoryImpl", TranslationParser.class.getClassLoader());
    LOG.info("XMLInputFactory loaded: " + factory.getClass().getName());
    factory.setProperty("javax.xml.stream.isCoalescing", true);
    final XMLStreamReader parser = factory.createXMLStreamReader(in);
    while (parser.hasNext()) {
        final int event = parser.next();
        if (event == XMLStreamConstants.START_ELEMENT && parser.getName().getLocalPart().equals("rule")) {
            return parseRule(parser, loader);
        }
    }
    throw new IllegalArgumentException("No rules section found.");
}