Java Code Examples for javax.xml.stream.XMLStreamReader#END_DOCUMENT

private void storeDocumentAndChildren(XMLStreamReader reader) throws XMLStreamException {
    storeStructure(T_DOCUMENT);

    _eventType = reader.next();
    while (_eventType != XMLStreamReader.END_DOCUMENT) {
        switch (_eventType) {
            case XMLStreamReader.START_ELEMENT:
                storeElementAndChildren(reader);
                continue;
            case XMLStreamReader.COMMENT:
                storeComment(reader);
                break;
            case XMLStreamReader.PROCESSING_INSTRUCTION:
                storeProcessingInstruction(reader);
                break;
        }
        _eventType = reader.next();
    }

    storeStructure(T_END);
}
 

private static void debug(XMLStreamReader reader) throws XMLStreamException {
    int eventType = reader.getEventType();
    switch (eventType) {
    case XMLStreamReader.START_DOCUMENT:
        System.out.println("START_DOCUMENT");
        break;
    case XMLStreamReader.START_ELEMENT:
        System.out.println("START_ELEMENT: " + reader.getLocalName());
        break;
    case XMLStreamReader.SPACE:
        System.out.println("SPACE");
        break;
    case XMLStreamReader.CHARACTERS:
        System.out.println("CHARACTERS");
        break;
    case XMLStreamReader.END_ELEMENT:
        System.out.println("END_ELEMENT: " + reader.getLocalName());
        break;
    case XMLStreamReader.END_DOCUMENT:
        System.out.println("END_DOCUMENT");
        break;
    default:
        System.out.println("OTHER: " + eventType);
        break;
    }
}
 

private void storeDocumentAndChildren(XMLStreamReader reader) throws XMLStreamException {
    storeStructure(T_DOCUMENT);

    _eventType = reader.next();
    while (_eventType != XMLStreamReader.END_DOCUMENT) {
        switch (_eventType) {
            case XMLStreamReader.START_ELEMENT:
                storeElementAndChildren(reader);
                continue;
            case XMLStreamReader.COMMENT:
                storeComment(reader);
                break;
            case XMLStreamReader.PROCESSING_INSTRUCTION:
                storeProcessingInstruction(reader);
                break;
        }
        _eventType = reader.next();
    }

    storeStructure(T_END);
}
 

private void storeDocumentAndChildren(XMLStreamReader reader) throws XMLStreamException {
    storeStructure(T_DOCUMENT);

    _eventType = reader.next();
    while (_eventType != XMLStreamReader.END_DOCUMENT) {
        switch (_eventType) {
            case XMLStreamReader.START_ELEMENT:
                storeElementAndChildren(reader);
                continue;
            case XMLStreamReader.COMMENT:
                storeComment(reader);
                break;
            case XMLStreamReader.PROCESSING_INSTRUCTION:
                storeProcessingInstruction(reader);
                break;
        }
        _eventType = reader.next();
    }

    storeStructure(T_END);
}
 

/**
 * Reads the next tag name from the XML parser so long as it lies within the parent tag name.
 * If the close tag event for the parent is read this method will return null. Otherwise it
 * returns the name of the tag read.
 *
 * @param parentTagName The enclosing tag that forms the limit for the read operation.
 * @return The next tag name or null if there are no more tags to read inside the specified parent.
 */
protected String readNextTagInsideParent(String parentTagName) {
  int event;
  try {
    do {
      event = xmlStreamReader.next();
    } while (event == XMLStreamReader.CHARACTERS ||
             event == XMLStreamReader.COMMENT ||
             event == XMLStreamReader.END_ELEMENT && !xmlStreamReader.getLocalName().equals(parentTagName));
  } catch (Exception e) {
    throw new RuntimeException("Error reading data from the XML pull parser", e);
  }

  if (event == XMLStreamReader.START_ELEMENT) {
    return xmlStreamReader.getLocalName();

  } else if (event == XMLStreamReader.END_ELEMENT) {
    return null;

  } else if (event == XMLStreamReader.END_DOCUMENT) {
    throw new IllegalStateException("Unexpected end of document while looking for a tag inside [" + parentTagName + "]");

  } else {
    throw new IllegalStateException("Expecting a tag inside [" + parentTagName + "] but got [" + event + "]");
  }
}
 

/**
 * Reads the next tag from the pull parser and throws an exception if its name does not
 * match <var>expectedTagName</var>.
 *
 * @param xmlPullParser The pull parser to read from
 * @param expectedTagName The tag name expected
 */
public static void readTag(XMLStreamReader xmlStreamReader, String expectedTagName) {
  // Look for any start tag event
  int event;
  try {
    do {
      event = xmlStreamReader.next();
    } while (event == XMLStreamReader.CHARACTERS || event == XMLStreamReader.END_ELEMENT || event == XMLStreamReader.COMMENT);
  } catch (Exception e) {
    throw new RuntimeException("Error reading data from the XML pull parser", e);
  }

  if (event == XMLStreamReader.START_ELEMENT) {
    if (!expectedTagName.equals(xmlStreamReader.getLocalName())) {
      throw new IllegalArgumentException("Expected tag [" + expectedTagName + "] but got [" + xmlStreamReader.getLocalName() + "]");
    }

  } else if (event == XMLStreamReader.END_DOCUMENT) {
    throw new IllegalStateException("Unexpected end of document while looking for tag [" + expectedTagName + "]");

  } else {
    throw new IllegalStateException("Expecting a tag but found [" + event + "]");
  }
}
 

private void storeDocumentAndChildren(XMLStreamReader reader) throws XMLStreamException {
    storeStructure(T_DOCUMENT);

    _eventType = reader.next();
    while (_eventType != XMLStreamReader.END_DOCUMENT) {
        switch (_eventType) {
            case XMLStreamReader.START_ELEMENT:
                storeElementAndChildren(reader);
                continue;
            case XMLStreamReader.COMMENT:
                storeComment(reader);
                break;
            case XMLStreamReader.PROCESSING_INSTRUCTION:
                storeProcessingInstruction(reader);
                break;
        }
        _eventType = reader.next();
    }

    storeStructure(T_END);
}
 

/**
 * Reads the data from the given XML stream reader.
 * 
 * @param xmlReader The reader
 */
private void read(XMLStreamReader xmlReader) throws DdlUtilsXMLException
{
    try
    {
        while (xmlReader.getEventType() != XMLStreamReader.START_ELEMENT)
        {
            if (xmlReader.next() == XMLStreamReader.END_DOCUMENT)
            {
                return;
            }
        }
        readDocument(xmlReader);
    }
    catch (XMLStreamException ex)
    {
        throw new DdlUtilsXMLException(ex);
    }
}
 

private void storeDocumentAndChildren(XMLStreamReader reader) throws XMLStreamException {
    storeStructure(T_DOCUMENT);

    _eventType = reader.next();
    while (_eventType != XMLStreamReader.END_DOCUMENT) {
        switch (_eventType) {
            case XMLStreamReader.START_ELEMENT:
                storeElementAndChildren(reader);
                continue;
            case XMLStreamReader.COMMENT:
                storeComment(reader);
                break;
            case XMLStreamReader.PROCESSING_INSTRUCTION:
                storeProcessingInstruction(reader);
                break;
        }
        _eventType = reader.next();
    }

    storeStructure(T_END);
}
 

/**
 * Reads the data from the given XML stream reader.
 * 
 * @param xmlReader The reader
 */
private void read(XMLStreamReader xmlReader) throws DdlUtilsXMLException
{
    try
    {
        while (xmlReader.getEventType() != XMLStreamReader.START_ELEMENT)
        {
            if (xmlReader.next() == XMLStreamReader.END_DOCUMENT)
            {
                return;
            }
        }
        readDocument(xmlReader);
    }
    catch (XMLStreamException ex)
    {
        throw new DdlUtilsXMLException(ex);
    }
}
 

@Override
public int nextTag() throws XMLStreamException {
    int e = next();
    if (e == XMLStreamReader.END_DOCUMENT) return e;
    while (e != XMLStreamReader.END_DOCUMENT) {
        if (e == XMLStreamReader.START_ELEMENT) return e;
        if (e == XMLStreamReader.END_ELEMENT) return e;
        e = next();
    }
    return e;
}
 

@Override
public int nextTag() throws XMLStreamException {
    int e = next();
    if (e == XMLStreamReader.END_DOCUMENT) return e;
    while (e != XMLStreamReader.END_DOCUMENT) {
        if (e == XMLStreamReader.START_ELEMENT) return e;
        if (e == XMLStreamReader.END_ELEMENT) return e;
        e = next();
    }
    return e;
}
 

/**
 * Creates the buffer from a stream reader that is an element fragment.
 * <p>
 * The stream reader will be moved to the position of the next start of
 * an element if the stream reader is not already positioned at the start
 * of an element.
 * <p>
 * The element and all its children will be stored and after storing the stream
 * will be positioned at the next event after the end of the element.
 * <p>
 * @param storeInScopeNamespaces true if in-scope namespaces of the element
 *        fragment should be stored.
 * @return the mutable stream buffer.
 * @throws XMLStreamException if the stream reader cannot be positioned at
 *         the start of an element.
 */
public MutableXMLStreamBuffer createElementFragment(XMLStreamReader reader,
        boolean storeInScopeNamespaces) throws XMLStreamException {
    if (_buffer == null) {
        createBuffer();
    }

    if (!reader.hasNext()) {
        return _buffer;
    }

    _storeInScopeNamespacesOnElementFragment = storeInScopeNamespaces;

    _eventType = reader.getEventType();
    if (_eventType != XMLStreamReader.START_ELEMENT) {
        do {
            _eventType = reader.next();
        } while(_eventType != XMLStreamReader.START_ELEMENT && _eventType != XMLStreamReader.END_DOCUMENT);
    }

    if (storeInScopeNamespaces) {
        _inScopePrefixes = new HashMap<String,Integer>();
    }

    storeElementAndChildren(reader);

    return getXMLStreamBuffer();
}
 

private static <T> void readList(Unmarshaller inUnmarshaller, File baseDir, String fileName, String listNodeName, String nodeName, Class<T> clazz, Consumer<T> consumer, boolean notThow) {
	File xml = new File(baseDir, fileName);
	if (!xml.exists()) {
		final String msg = fileName + " missing";
		if (notThow) {
			log.debug(msg);
			return;
		} else {
			throw new BackupException(msg);
		}
	}
	try {
		Unmarshaller unmarshaller = inUnmarshaller;
		if (inUnmarshaller == null) {
			JAXBContext jc = JAXBContext.newInstance(clazz);
			unmarshaller = jc.createUnmarshaller();
		}
		XMLInputFactory xif = XmlHelper.createInputFactory();
		StreamSource xmlSource = new StreamSource(xml);
		XMLStreamReader xsr = xif.createXMLStreamReader(xmlSource);
		boolean listNodeFound = false;
		while (xsr.getEventType() != XMLStreamReader.END_DOCUMENT) {
			if (xsr.isStartElement()) {
				if (!listNodeFound && listNodeName.equals(xsr.getLocalName())) {
					listNodeFound = true;
				} else if (nodeName.equals(xsr.getLocalName())) {
					T o = unmarshaller.unmarshal(xsr, clazz).getValue();
					consumer.accept(o);
				}
			}
			xsr.next();
		}
	} catch (Exception e) {
		throw new BackupException(e);
	}
}
 

private int moveToNextElement(XMLStreamReader streamReader) throws XMLStreamException {
	int event = streamReader.getEventType();
	while (event != XMLStreamReader.START_ELEMENT && event != XMLStreamReader.END_DOCUMENT) {
		event = streamReader.next();
	}
	return event;
}
 

/**
 * Creates the buffer from a stream reader that is an element fragment.
 * <p>
 * The stream reader will be moved to the position of the next start of
 * an element if the stream reader is not already positioned at the start
 * of an element.
 * <p>
 * The element and all its children will be stored and after storing the stream
 * will be positioned at the next event after the end of the element.
 * <p>
 * @param storeInScopeNamespaces true if in-scope namespaces of the element
 *        fragment should be stored.
 * @return the mutable stream buffer.
 * @throws XMLStreamException if the stream reader cannot be positioned at
 *         the start of an element.
 */
public MutableXMLStreamBuffer createElementFragment(XMLStreamReader reader,
        boolean storeInScopeNamespaces) throws XMLStreamException {
    if (_buffer == null) {
        createBuffer();
    }

    if (!reader.hasNext()) {
        return _buffer;
    }

    _storeInScopeNamespacesOnElementFragment = storeInScopeNamespaces;

    _eventType = reader.getEventType();
    if (_eventType != XMLStreamReader.START_ELEMENT) {
        do {
            _eventType = reader.next();
        } while(_eventType != XMLStreamReader.START_ELEMENT && _eventType != XMLStreamReader.END_DOCUMENT);
    }

    if (storeInScopeNamespaces) {
        _inScopePrefixes = new HashMap<String,Integer>();
    }

    storeElementAndChildren(reader);

    return getXMLStreamBuffer();
}
 

private int moveToNextElement(XMLStreamReader streamReader) throws XMLStreamException {
	int event = streamReader.getEventType();
	while (event != XMLStreamReader.START_ELEMENT && event != XMLStreamReader.END_DOCUMENT) {
		event = streamReader.next();
	}
	return event;
}
 

/**
 * Consumes the rest of the current element. This assumes that the current XML stream
 * event type is not START_ELEMENT.
 * 
 * @param reader The xml reader
 */
private void consumeRestOfElement(XMLStreamReader reader) throws XMLStreamException
{
    int eventType = reader.getEventType();

    while ((eventType != XMLStreamReader.END_ELEMENT) && (eventType != XMLStreamReader.END_DOCUMENT))
    {
        eventType = reader.next();
    }
}
 

@Override
public int nextTag() throws XMLStreamException {
    int e = next();
    if (e == XMLStreamReader.END_DOCUMENT) return e;
    while (e != XMLStreamReader.END_DOCUMENT) {
        if (e == XMLStreamReader.START_ELEMENT) return e;
        if (e == XMLStreamReader.END_ELEMENT) return e;
        e = next();
    }
    return e;
}
 

private int moveToFirstChildOfRootElement(XMLStreamReader streamReader) throws XMLStreamException {
	// root
	int event = streamReader.next();
	while (event != XMLStreamReader.START_ELEMENT) {
		event = streamReader.next();
	}

	// first child
	event = streamReader.next();
	while ((event != XMLStreamReader.START_ELEMENT) && (event != XMLStreamReader.END_DOCUMENT)) {
		event = streamReader.next();
	}
	return event;
}