Example usage 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

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

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Document

Indicates an event is a start element

Usage

From source file:Main.java

/**
 * Skips a tag or subtree./*from w ww.  java  2  s  . c o  m*/
 */
public static void skip(XMLStreamReader parser) throws XMLStreamException {
    assert parser != null;

    int level = 1;
    while (next(parser)) {
        int event = parser.getEventType();
        if (event == XMLStreamConstants.START_ELEMENT) {
            level++;
        } else if (event == XMLStreamConstants.END_ELEMENT) {
            level--;
            if (level == 0) {
                break;
            }
        }
    }

    next(parser);
}

---

From source file:Main.java

/**
 * Test if reader is on a start tag named tagLocalName.
 *
 * @param reader       xml stream reader
 * @param tagLocalName tag local name//from w w w.j  av  a 2  s  .co  m
 * @return true if reader is on a start tag named tagLocalName
 */
public static boolean isStartTag(XMLStreamReader reader, String tagLocalName) {
    return (reader.getEventType() == XMLStreamConstants.START_ELEMENT)
            && (reader.getLocalName().equals(tagLocalName));
}

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From source file:Main.java

/**
 * Gets the version of the XML.//from  w w  w .java2s  .co  m
 *
 * @param path the XML file.
 * @return the corresponding version of the XML.
 */
public static String getXMLVersion(final Path path) {
    try (InputStream inputStream = Files.newInputStream(path)) {
        XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(inputStream);
        for (int event; (event = reader.next()) != XMLStreamConstants.END_DOCUMENT;) {
            if (event == XMLStreamConstants.START_ELEMENT) {
                String tmp = reader.getLocalName();
                if ("persistence".equals(tmp)) {
                    for (int i = 0; i < reader.getAttributeCount(); i++) {
                        if ("version".equals(reader.getAttributeName(i).toString())) {
                            return reader.getAttributeValue(i);
                        }
                    }
                }
            }
        }
    } catch (Exception ex) {
        throw new RuntimeException("Error reading the persistence.xml version.", ex);
    }
    return null;
}

---

From source file:Main.java

/**
 * Moves the parser to the next start element.
 * //from w w  w . j  ava 2 s  .c  o  m
 * @return {@code true} if another start element has been found,
 *         {@code false} otherwise
 */
public static boolean findNextStartElemenet(XMLStreamReader parser) throws XMLStreamException {
    assert parser != null;

    while (true) {
        int event = parser.getEventType();

        if (event == XMLStreamConstants.START_ELEMENT) {
            return true;
        }

        if (parser.hasNext()) {
            parser.next();
        } else {
            return false;
        }
    }
}

---

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.j  a v a2 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

/**
 * Test if reader is on a start tag.//from w w  w . ja  v  a 2  s . c om
 *
 * @param reader xml stream reader
 * @return true if reader is on a start tag
 */
public static boolean isStartTag(XMLStreamReader reader) {
    return (reader.getEventType() == XMLStreamConstants.START_ELEMENT);
}

---

From source file:Main.java

/**
 * /*from  w w w  .  j  a  v  a  2  s .  co  m*/
 * @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

/**
 * //from   ww w .  ja  v  a2  s.c  o  m
 * @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

/**
 * /*w  w w  . java 2s  .c  om*/
 * Checks indentation (over a single line - multipline text nodes is not supported)
 * 
 * @param out
 * @param indentSize
 * @return
 * @throws Exception
 */

public static boolean isIndented(String out, int indentSize) throws Exception {
    BufferedReader reader = new BufferedReader(new StringReader(out));

    boolean indentated = false;

    int level = 0;
    int line = 0;

    String string = reader.readLine();
    while (string != null) {
        int newLevel = 0;
        while (newLevel < string.length()) {
            if (!Character.isWhitespace(string.charAt(newLevel))) {
                break;
            }
            newLevel++;
        }
        if ((newLevel % indentSize) != 0) {
            throw new IllegalArgumentException("Unexpected " + newLevel + " whitespace chars at line " + line);
        }
        if (Math.abs(level - newLevel) > indentSize) {
            throw new IllegalArgumentException("Unexpected jump from " + level + " to " + newLevel
                    + " whitespace chars at line " + line + " for indenting with " + indentSize + " chars");
        }
        level = newLevel;

        string = reader.readLine();
        line++;

        if (level > 0) {
            indentated = true;
        }
    }

    if (!indentated) {
        // see if a simple xml piece
        XMLInputFactory inputFactory = XMLInputFactory.newInstance();
        XMLStreamReader parser = inputFactory.createXMLStreamReader(new StringReader(out));

        int elementMaxLevel = -1;
        int elementLevel = 0;
        do {
            int event = parser.next();
            if (event == XMLStreamConstants.START_ELEMENT) {
                elementLevel++;

                if (elementMaxLevel < elementLevel) {
                    elementMaxLevel = elementLevel;
                }
            } else if (event == XMLStreamConstants.END_ELEMENT) {
                elementLevel--;
            }
        } while (parser.hasNext());

        if (elementMaxLevel > 1) { // should be indentated
            return false;
        }
        return true;
    }

    return indentated;
}

---

From source file:MDRevealer.ResistanceTests.java

private static ArrayList<HashMap<String, String>> parse_test(File rt_input)
        throws XMLStreamException, FileNotFoundException {
    XMLInputFactory xif = XMLInputFactory.newInstance();
    XMLStreamReader xsr = xif.createXMLStreamReader(new FileInputStream(rt_input));
    ArrayList<HashMap<String, String>> test = new ArrayList<HashMap<String, String>>();
    HashMap<String, String> hm = new HashMap<String, String>();
    String key = "null";
    while (xsr.hasNext() == true) {

        int constant = xsr.next();

        switch (constant) {
        case XMLStreamConstants.START_ELEMENT:
            key = xsr.getLocalName();//w  w w.j  a  v  a  2 s  .c om
            if (xsr.getAttributeCount() > 0) {
                for (int i = 0; i < xsr.getAttributeCount(); i++) {
                    hm.put(xsr.getAttributeLocalName(i), xsr.getAttributeValue(i));
                }
                test.add(hm);
                hm = new HashMap<String, String>();
            }
            break;
        case XMLStreamConstants.CHARACTERS:
            if (!xsr.isWhiteSpace()) {
                hm.put(key, xsr.getText());
                test.add(hm);
            }
            hm = new HashMap<String, String>();
            break;
        case XMLStreamConstants.END_ELEMENT:
            if (xsr.getLocalName().equals("condition")) {
                hm.put("condition_over", "true");
                test.add(hm);
                hm = new HashMap<String, String>();
            }
            break;
        }
    }
    return test;
}

---

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