Example usage for javax.xml.stream XMLStreamConstants START

Introduction

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

Prototype

int START_DOCUMENT

To view the source code for javax.xml.stream XMLStreamConstants START_DOCUMENT.

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Document

Indicates an event is a start document

Usage

From source file:Main.java

public static void printStartDocument(XMLStreamReader xmlr) {
    if (XMLStreamConstants.START_DOCUMENT == xmlr.getEventType()) {
        System.out.println("<?xml version=\"" + xmlr.getVersion() + "\"" + " encoding=\""
                + xmlr.getCharacterEncodingScheme() + "\"" + "?>");
    }/* www  .java2 s  .  c  om*/
}

From source file:Main.java

/** Get the human readable event name for the numeric event id */
public static String getEventName(int eventId) {
    switch (eventId) {
    case XMLStreamConstants.START_ELEMENT:
        return "StartElementEvent";
    case XMLStreamConstants.END_ELEMENT:
        return "EndElementEvent";
    case XMLStreamConstants.PROCESSING_INSTRUCTION:
        return "ProcessingInstructionEvent";
    case XMLStreamConstants.CHARACTERS:
        return "CharacterEvent";
    case XMLStreamConstants.COMMENT:
        return "CommentEvent";
    case XMLStreamConstants.START_DOCUMENT:
        return "StartDocumentEvent";
    case XMLStreamConstants.END_DOCUMENT:
        return "EndDocumentEvent";
    case XMLStreamConstants.ENTITY_REFERENCE:
        return "EntityReferenceEvent";
    case XMLStreamConstants.ATTRIBUTE:
        return "AttributeBase";
    case XMLStreamConstants.DTD:
        return "DTDEvent";
    case XMLStreamConstants.CDATA:
        return "CDATA";
    }/*from  w w w.  ja va  2 s .com*/
    return "UNKNOWN_EVENT_TYPE";
}

From source file:Main.java

/**
 * /*from   www  .  j  a v  a  2s .c  om*/
 * @param is
 * @param os
 * @param elementNames
 * @throws XMLStreamException
 * @throws FactoryConfigurationError
 * @throws UnsupportedEncodingException
 */
public static void stripElements(final InputStream is, final OutputStream os,
        final Collection<String> elementNames)
        throws XMLStreamException, UnsupportedEncodingException, FactoryConfigurationError {
    final XMLEventReader xmlEventReader = XMLInputFactory.newInstance()
            .createXMLEventReader(new InputStreamReader(is, Charset.defaultCharset().name()));
    final XMLEventWriter xmlEventWriter = XMLOutputFactory.newInstance().createXMLEventWriter(os);

    String elementName = null;

    while (xmlEventReader.peek() != null) {
        final XMLEvent event = (XMLEvent) xmlEventReader.next();

        switch (event.getEventType()) {
        case XMLStreamConstants.START_DOCUMENT:
        case XMLStreamConstants.END_DOCUMENT: {
            // Ignore.
            break;
        }
        case XMLStreamConstants.START_ELEMENT: {
            final StartElement startElement = event.asStartElement();
            final QName name = startElement.getName();

            if (elementNames.contains(name.getLocalPart())) {
                elementName = name.getLocalPart();
            }

            if (elementName == null) {
                xmlEventWriter.add(event);
            }

            break;
        }
        case XMLStreamConstants.END_ELEMENT: {
            final EndElement endElement = event.asEndElement();
            final QName name = endElement.getName();

            if (elementName == null) {
                xmlEventWriter.add(event);
            } else if (elementName.equals(name.getLocalPart())) {
                elementName = null;
            }

            break;
        }
        default: {
            if (elementName == null) {
                xmlEventWriter.add(event);
            }
        }
        }
    }

    xmlEventWriter.flush();
}

From source file:Main.java

/**
 * Get the string representation of a given StAX event type. The returned
 * value is the name of the constant in {@link XMLStreamConstants}
 * corresponding to the event type./*w w w.  ja v  a 2 s . c  o  m*/
 * 
 * @param event
 *            the event type as returned by
 *            {@link javax.xml.stream.events.XMLEvent#getEventType()},
 *            {@link javax.xml.stream.XMLStreamReader#getEventType()} or
 *            {@link javax.xml.stream.XMLStreamReader#next()}
 * @return a string representation of the event type
 */
public static String getEventTypeString(int event) {
    String state = null;
    switch (event) {
    case XMLStreamConstants.START_ELEMENT:
        state = "START_ELEMENT";
        break;
    case XMLStreamConstants.START_DOCUMENT:
        state = "START_DOCUMENT";
        break;
    case XMLStreamConstants.CHARACTERS:
        state = "CHARACTERS";
        break;
    case XMLStreamConstants.CDATA:
        state = "CDATA";
        break;
    case XMLStreamConstants.END_ELEMENT:
        state = "END_ELEMENT";
        break;
    case XMLStreamConstants.END_DOCUMENT:
        state = "END_DOCUMENT";
        break;
    case XMLStreamConstants.SPACE:
        state = "SPACE";
        break;
    case XMLStreamConstants.COMMENT:
        state = "COMMENT";
        break;
    case XMLStreamConstants.DTD:
        state = "DTD";
        break;
    case XMLStreamConstants.PROCESSING_INSTRUCTION:
        state = "PROCESSING_INSTRUCTION";
        break;
    case XMLStreamConstants.ENTITY_REFERENCE:
        state = "ENTITY_REFERENCE";
        break;
    default:
        state = "UNKNOWN_STATE: " + event;
    }
    return state;
}

From source file:Main.java

/**
 * /*from w w w .j  a  v  a  2 s  . c om*/
 * @param elementName
 * @param attributeValue
 * @param is
 * @return Collection
 * @throws XMLStreamException
 * @throws FactoryConfigurationError
 * @throws UnsupportedEncodingException
 */
public static Collection<String> getElementValues(final String elementName, final String attributeValue,
        final InputStream is)
        throws XMLStreamException, UnsupportedEncodingException, FactoryConfigurationError {
    final Collection<String> elementValues = new ArrayList<>();
    final XMLEventReader xmlEventReader = XMLInputFactory.newInstance()
            .createXMLEventReader(new InputStreamReader(is, Charset.defaultCharset().name()));
    final StringBuffer characters = new StringBuffer();
    boolean read = false;

    while (xmlEventReader.peek() != null) {
        final XMLEvent event = (XMLEvent) xmlEventReader.next();

        switch (event.getEventType()) {
        case XMLStreamConstants.START_DOCUMENT:
        case XMLStreamConstants.END_DOCUMENT: {
            // Ignore.
            break;
        }
        case XMLStreamConstants.START_ELEMENT: {
            read = elementName.equals(event.asStartElement().getName().getLocalPart());

            if (read && attributeValue != null) {
                read = false;

                for (Iterator<Attribute> iterator = event.asStartElement().getAttributes(); iterator
                        .hasNext();) {
                    Attribute attribute = iterator.next();

                    if (attribute.getValue().equals(attributeValue)) {
                        read = true;
                        break;
                    }
                }
            }

            break;
        }
        case XMLStreamConstants.CHARACTERS: {
            if (read) {
                characters.append(event.asCharacters().getData());
            }
            break;
        }
        case XMLStreamConstants.END_ELEMENT: {
            if (read) {
                elementValues.add(characters.toString());
                characters.setLength(0);
            }

            read = false;
            break;
        }
        default: {
            // Ignore
            break;
        }
        }
    }

    return elementValues;
}

From source file:Main.java

/**
 * /*from   w w  w. j  a va  2s.  co  m*/
 * @param elementName
 * @param is
 * @param onlyValues
 * @return Collection
 * @throws XMLStreamException
 * @throws UnsupportedEncodingException
 */
public static Collection<String> getElements(final String elementName, final InputStream is,
        final boolean onlyValues) throws XMLStreamException, UnsupportedEncodingException {
    final Collection<String> elements = new ArrayList<>();
    final ByteArrayOutputStream os = new ByteArrayOutputStream();
    final XMLEventReader reader = XMLInputFactory.newInstance()
            .createXMLEventReader(new InputStreamReader(is, Charset.defaultCharset().name()));
    final XMLEventWriter writer = XMLOutputFactory.newInstance()
            .createXMLEventWriter(new OutputStreamWriter(os, Charset.defaultCharset().name()));
    boolean read = false;
    String characters = null;

    while (reader.peek() != null) {
        final XMLEvent event = (XMLEvent) reader.next();

        switch (event.getEventType()) {
        case XMLStreamConstants.START_DOCUMENT:
        case XMLStreamConstants.END_DOCUMENT: {
            // Ignore.
            break;
        }
        case XMLStreamConstants.START_ELEMENT: {
            read = read || elementName.equals(event.asStartElement().getName().getLocalPart());

            if (read && !onlyValues) {
                writer.add(event);
            }

            break;
        }
        case XMLStreamConstants.ATTRIBUTE: {
            if (read && !onlyValues) {
                writer.add(event);
            }
            break;
        }
        case XMLStreamConstants.CHARACTERS: {
            if (read && !onlyValues) {
                writer.add(event);
            }
            characters = event.asCharacters().getData();
            break;
        }
        case XMLStreamConstants.END_ELEMENT: {
            if (read && !onlyValues) {
                writer.add(event);
            }
            if (elementName.equals(event.asEndElement().getName().getLocalPart())) {
                writer.flush();

                if (characters != null) {
                    elements.add(characters);
                }

                os.reset();
                read = false;
            }
            break;
        }
        default: {
            // Ignore
            break;
        }
        }
    }

    return elements;
}

From source file:Main.java

/**
 * Copy an XML event stream./*from   w w w . java2  s. co  m*/
 * @param reader The event reader.
 * @param writer The event writer.
 * @param omitDoc if true, ignore start/end document events.
 * @throws XMLStreamException For errors writing to the XML event writer.
 */
public static void copyXMLEventStream(final XMLEventReader reader, final XMLEventWriter writer,
        final boolean omitDoc) throws XMLStreamException {
    if (omitDoc) {
        while (reader.hasNext()) {
            final XMLEvent event = reader.nextEvent();
            final int type = event.getEventType();
            if ((type != XMLStreamConstants.START_DOCUMENT) && (type != XMLStreamConstants.END_DOCUMENT)) {
                writer.add(event);
            }
        }
    } else {
        writer.add(reader);
    }
    writer.flush();
}

From source file:Main.java

public static String parse(XMLStreamReader reader) {
    StringBuffer result = new StringBuffer();
    if (reader != null) {
        try {//from   w  w w .ja  va 2  s .c om
            while (reader.hasNext()) {
                switch (reader.getEventType()) {

                case XMLStreamConstants.START_ELEMENT:
                    result.append("<");
                    printName(reader, result);
                    printNamespaces(reader, result);
                    printAttributes(reader, result);
                    result.append(">");
                    break;

                case XMLStreamConstants.END_ELEMENT:
                    result.append("</");
                    printName(reader, result);
                    result.append(">");
                    break;

                case XMLStreamConstants.SPACE:

                case XMLStreamConstants.CHARACTERS:
                    int start = reader.getTextStart();
                    int length = reader.getTextLength();
                    result.append(new String(reader.getTextCharacters(), start, length));
                    break;

                case XMLStreamConstants.PROCESSING_INSTRUCTION:
                    result.append("<?");
                    if (reader.hasText())
                        result.append(reader.getText());
                    result.append("?>");
                    break;

                case XMLStreamConstants.CDATA:
                    result.append("<![CDATA[");
                    start = reader.getTextStart();
                    length = reader.getTextLength();
                    result.append(new String(reader.getTextCharacters(), start, length));
                    result.append("]]>");
                    break;

                case XMLStreamConstants.COMMENT:
                    result.append("<!--");
                    if (reader.hasText())
                        result.append(reader.getText());
                    result.append("-->");
                    break;

                case XMLStreamConstants.ENTITY_REFERENCE:
                    result.append(reader.getLocalName()).append("=");
                    if (reader.hasText())
                        result.append("[").append(reader.getText()).append("]");
                    break;

                case XMLStreamConstants.START_DOCUMENT:
                    result.append("<?xml");
                    result.append(" version='").append(reader.getVersion()).append("'");
                    result.append(" encoding='").append(reader.getCharacterEncodingScheme()).append("'");
                    if (reader.isStandalone())
                        result.append(" standalone='yes'");
                    else
                        result.append(" standalone='no'");
                    result.append("?>");
                    break;
                }
                reader.next();
            } // end while
        } catch (XMLStreamException e) {
            throw new RuntimeException(e);
        } finally {
            try {
                reader.close();
            } catch (XMLStreamException e) {
            }
        }
    }
    return result.toString();
}

From source file:StAXEventTreeViewer.java

public void buildTree(DefaultTreeModel treeModel, DefaultMutableTreeNode current, File file)
        throws XMLStreamException, FileNotFoundException {

    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLEventReader reader = inputFactory.createXMLEventReader(new FileInputStream(file));
    while (reader.hasNext()) {
        XMLEvent event = reader.nextEvent();
        switch (event.getEventType()) {
        case XMLStreamConstants.START_DOCUMENT:
            StartDocument startDocument = (StartDocument) event;
            DefaultMutableTreeNode version = new DefaultMutableTreeNode(startDocument.getVersion());
            current.add(version);//from www .j  a  v  a2  s .com

            current.add(new DefaultMutableTreeNode(startDocument.isStandalone()));
            current.add(new DefaultMutableTreeNode(startDocument.standaloneSet()));
            current.add(new DefaultMutableTreeNode(startDocument.encodingSet()));
            current.add(new DefaultMutableTreeNode(startDocument.getCharacterEncodingScheme()));
            break;
        case XMLStreamConstants.START_ELEMENT:
            StartElement startElement = (StartElement) event;
            QName elementName = startElement.getName();

            DefaultMutableTreeNode element = new DefaultMutableTreeNode(elementName.getLocalPart());
            current.add(element);
            current = element;

            if (!elementName.getNamespaceURI().equals("")) {
                String prefix = elementName.getPrefix();
                if (prefix.equals("")) {
                    prefix = "[None]";
                }
                DefaultMutableTreeNode namespace = new DefaultMutableTreeNode(
                        "prefix=" + prefix + ",URI=" + elementName.getNamespaceURI());
                current.add(namespace);
            }

            for (Iterator it = startElement.getAttributes(); it.hasNext();) {
                Attribute attr = (Attribute) it.next();
                DefaultMutableTreeNode attribute = new DefaultMutableTreeNode("Attribute (name="
                        + attr.getName().getLocalPart() + ",value=" + attr.getValue() + "')");
                String attURI = attr.getName().getNamespaceURI();
                if (!attURI.equals("")) {
                    String attPrefix = attr.getName().getPrefix();
                    if (attPrefix.equals("")) {
                        attPrefix = "[None]";
                    }
                    attribute.add(new DefaultMutableTreeNode("prefix = " + attPrefix + ", URI = " + attURI));
                }
                current.add(attribute);
            }
            break;
        case XMLStreamConstants.END_ELEMENT:
            current = (DefaultMutableTreeNode) current.getParent();
            break;
        case XMLStreamConstants.CHARACTERS:
            Characters characters = (Characters) event;
            if (!characters.isIgnorableWhiteSpace() && !characters.isWhiteSpace()) {
                String data = characters.getData();
                if (data.length() != 0) {
                    current.add(new DefaultMutableTreeNode(characters.getData()));
                }
            }
            break;
        case XMLStreamConstants.DTD:
            DTD dtde = (DTD) event;
            current.add(new DefaultMutableTreeNode(dtde.getDocumentTypeDeclaration()));
        default:
            System.out.println(event.getClass().getName());
        }
    }
}

From source file:com.widowcrawler.exo.parse.Parser.java

private static String getEventTypeString(int eventType) {
    switch (eventType) {
    case XMLStreamConstants.START_ELEMENT:
        return "START_ELEMENT";
    case XMLStreamConstants.END_ELEMENT:
        return "END_ELEMENT";
    case XMLStreamConstants.PROCESSING_INSTRUCTION:
        return "PROCESSING_INSTRUCTION";
    case XMLStreamConstants.CHARACTERS:
        return "CHARACTERS";
    case XMLStreamConstants.COMMENT:
        return "COMMENT";
    case XMLStreamConstants.START_DOCUMENT:
        return "START_DOCUMENT";
    case XMLStreamConstants.END_DOCUMENT:
        return "END_DOCUMENT";
    case XMLStreamConstants.ENTITY_REFERENCE:
        return "ENTITY_REFERENCE";
    case XMLStreamConstants.ATTRIBUTE:
        return "ATTRIBUTE";
    case XMLStreamConstants.DTD:
        return "DTD";
    case XMLStreamConstants.CDATA:
        return "CDATA";
    case XMLStreamConstants.SPACE:
        return "SPACE";
    case XMLStreamConstants.ENTITY_DECLARATION:
        return "ENTITY_DECLARATION";
    case XMLStreamConstants.NAMESPACE:
        return "NAMESPACE";
    case XMLStreamConstants.NOTATION_DECLARATION:
        return "NOTATION_DECLARATION";
    }//from   www . j  a  va2 s. c  o m
    return "UNKNOWN_EVENT_TYPE: " + eventType;
}

Example usage for javax.xml.stream XMLStreamConstants START_DOCUMENT

Introduction

Prototype

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Usage