Example usage for javax.xml.stream.events XMLEvent isStartDocument

Introduction

In this page you can find the example usage for javax.xml.stream.events XMLEvent isStartDocument.

Prototype

public boolean isStartDocument();

Source Link

Document

A utility function to check if this event is a StartDocument.

Usage

From source file:com.aionengine.gameserver.dataholders.loadingutils.XmlMerger.java

/**
 * Read all {@link javax.xml.stream.events.XMLEvent}'s from specified file and write them onto the {@link javax.xml.stream.XMLEventWriter}
 *
 * @param file     File to import//from  w  ww. j a v  a 2  s .  c  o  m
 * @param skipRoot Skip-root flag
 * @param writer   Destenation writer
 * @throws XMLStreamException    On event reading/writing error.
 * @throws FileNotFoundException if the reading file does not exist,
 *                               is a directory rather than a regular file,
 *                               or for some other reason cannot be opened for
 *                               reading.
 */
private void importFile(File file, boolean skipRoot, XMLEventWriter writer, Properties metadata)
        throws XMLStreamException, IOException {
    logger.debug("Appending file " + file);
    metadata.setProperty(file.getPath(), makeHash(file));

    XMLEventReader reader = null;

    try {
        reader = inputFactory.createXMLEventReader(new FileReader(file));

        QName firstTagQName = null;

        while (reader.hasNext()) {
            XMLEvent event = reader.nextEvent();

            // skip start and end of document.
            if (event.isStartDocument() || event.isEndDocument())
                continue;
            // skip all comments.
            if (event instanceof Comment)
                continue;
            // skip white-spaces and all ignoreable white-spaces.
            if (event.isCharacters()) {
                if (event.asCharacters().isWhiteSpace() || event.asCharacters().isIgnorableWhiteSpace())
                    continue;
            }

            // modify root-tag of imported file.
            if (firstTagQName == null && event.isStartElement()) {
                firstTagQName = event.asStartElement().getName();

                if (skipRoot) {
                    continue;
                } else {
                    StartElement old = event.asStartElement();

                    event = eventFactory.createStartElement(old.getName(), old.getAttributes(), null);
                }
            }

            // if root was skipped - skip root end too.
            if (event.isEndElement() && skipRoot && event.asEndElement().getName().equals(firstTagQName))
                continue;

            // finally - write tag
            writer.add(event);
        }
    } finally {
        if (reader != null)
            try {
                reader.close();
            } catch (Exception ignored) {
            }
    }
}

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From source file:com.aionemu.gameserver.dataholders.loadingutils.XmlMerger.java

/**
 * Read all {@link javax.xml.stream.events.XMLEvent}'s from specified file
 * and write them onto the {@link javax.xml.stream.XMLEventWriter}
 *
 * @param file     File to import//from  w  ww  . j  a  v  a 2 s. c o m
 * @param skipRoot Skip-root flag
 * @param writer   Destenation writer
 * @throws XMLStreamException    On event reading/writing error.
 * @throws FileNotFoundException if the reading file does not exist, is a
 *                               directory rather than a regular file, or for some other reason cannot be
 *                               opened for reading.
 */
private void importFile(File file, boolean skipRoot, XMLEventWriter writer, Properties metadata)
        throws XMLStreamException, IOException {
    logger.debug("Appending file " + file);
    metadata.setProperty(file.getPath(), makeHash(file));

    XMLEventReader reader = null;

    try {
        reader = inputFactory.createXMLEventReader(new FileReader(file));

        QName firstTagQName = null;

        while (reader.hasNext()) {
            XMLEvent event = reader.nextEvent();

            // skip start and end of document.
            if (event.isStartDocument() || event.isEndDocument()) {
                continue;
            }
            // skip all comments.
            if (event instanceof Comment) {
                continue;
            }
            // skip white-spaces and all ignoreable white-spaces.
            if (event.isCharacters()) {
                if (event.asCharacters().isWhiteSpace() || event.asCharacters().isIgnorableWhiteSpace()) {
                    continue;
                }
            }

            // modify root-tag of imported file.
            if (firstTagQName == null && event.isStartElement()) {
                firstTagQName = event.asStartElement().getName();

                if (skipRoot) {
                    continue;
                } else {
                    StartElement old = event.asStartElement();

                    event = eventFactory.createStartElement(old.getName(), old.getAttributes(), null);
                }
            }

            // if root was skipped - skip root end too.
            if (event.isEndElement() && skipRoot && event.asEndElement().getName().equals(firstTagQName)) {
                continue;
            }

            // finally - write tag
            writer.add(event);
        }
    } finally {
        if (reader != null) {
            try {
                reader.close();
            } catch (Exception ignored) {
            }
        }
    }
}

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From source file:com.aionengine.gameserver.dataholders.loadingutils.XmlMerger.java

/**
 * This method processes the source file, replacing all of
 * the 'import' tags by the data from the relevant files.
 *
 * @throws XMLStreamException on event writing error.
 * @throws IOException        if the destination file exists but is a directory rather than
 *                            a regular file, does not exist but cannot be created,
 *                            or cannot be opened for any other reason
 *//*  w  w w. jav  a  2  s .  co m*/
private void doUpdate() throws XMLStreamException, IOException {
    XMLEventReader reader = null;
    XMLEventWriter writer = null;

    Properties metadata = new Properties();

    try {
        writer = outputFactory.createXMLEventWriter(new BufferedWriter(new FileWriter(destFile, false)));
        reader = inputFactory.createXMLEventReader(new FileReader(sourceFile));

        while (reader.hasNext()) {
            final XMLEvent xmlEvent = reader.nextEvent();

            if (xmlEvent.isStartElement() && isImportQName(xmlEvent.asStartElement().getName())) {
                processImportElement(xmlEvent.asStartElement(), writer, metadata);
                continue;
            }

            if (xmlEvent.isEndElement() && isImportQName(xmlEvent.asEndElement().getName()))
                continue;

            if (xmlEvent instanceof Comment)// skip comments.
                continue;

            if (xmlEvent.isCharacters())// skip whitespaces.
                if (xmlEvent.asCharacters().isWhiteSpace() || xmlEvent.asCharacters().isIgnorableWhiteSpace())// skip whitespaces.
                    continue;

            writer.add(xmlEvent);

            if (xmlEvent.isStartDocument()) {
                writer.add(eventFactory.createComment("\nThis file is machine-generated. DO NOT MODIFY IT!\n"));
            }
        }

        storeFileModifications(metadata, metaDataFile);
    } finally {
        if (writer != null)
            try {
                writer.close();
            } catch (Exception ignored) {
            }
        if (reader != null)
            try {
                reader.close();
            } catch (Exception ignored) {
            }
    }
}

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From source file:com.aionemu.gameserver.dataholders.loadingutils.XmlMerger.java

/**
 * This method processes the source file, replacing all of the 'import' tags
 * by the data from the relevant files.//from  ww  w  . j  av a2 s  .com
 *
 * @throws XMLStreamException on event writing error.
 * @throws IOException        if the destination file exists but is a directory
 *                            rather than a regular file, does not exist but cannot be created, or
 *                            cannot be opened for any other reason
 */
private void doUpdate() throws XMLStreamException, IOException {
    XMLEventReader reader = null;
    XMLEventWriter writer = null;

    Properties metadata = new Properties();

    try {
        writer = outputFactory.createXMLEventWriter(new BufferedWriter(new FileWriter(destFile, false)));
        reader = inputFactory.createXMLEventReader(new FileReader(sourceFile));

        while (reader.hasNext()) {
            final XMLEvent xmlEvent = reader.nextEvent();

            if (xmlEvent.isStartElement() && isImportQName(xmlEvent.asStartElement().getName())) {
                processImportElement(xmlEvent.asStartElement(), writer, metadata);
                continue;
            }

            if (xmlEvent.isEndElement() && isImportQName(xmlEvent.asEndElement().getName())) {
                continue;
            }

            if (xmlEvent instanceof Comment)// skip comments.
            {
                continue;
            }

            if (xmlEvent.isCharacters())// skip whitespaces.
            {
                if (xmlEvent.asCharacters().isWhiteSpace() || xmlEvent.asCharacters().isIgnorableWhiteSpace())// skip
                // whitespaces.
                {
                    continue;
                }
            }

            writer.add(xmlEvent);

            if (xmlEvent.isStartDocument()) {
                writer.add(eventFactory.createComment("\nThis file is machine-generated. DO NOT MODIFY IT!\n"));
            }
        }

        storeFileModifications(metadata, metaDataFile);
    } finally {
        if (writer != null) {
            try {
                writer.close();
            } catch (Exception ignored) {
            }
        }
        if (reader != null) {
            try {
                reader.close();
            } catch (Exception ignored) {
            }
        }
    }
}

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From source file:org.mcisb.util.xml.XmlWriter.java

/**
 * //from  w  w  w .  ja  v a2s  .c om
 * 
 * @param event
 * @throws XMLStreamException
 */
protected void write(final XMLEvent event) throws XMLStreamException {
    if (event.isStartDocument()) {
        writeStartDocument();
    } else if (event.isEndDocument()) {
        writeEndDocument();
    } else if (event.isStartElement()) {
        writeStartElement(event.asStartElement());
    } else if (event.isEndElement()) {
        writeEndElement(event.asEndElement());
    } else if (event.isCharacters()) {
        if (event.asCharacters().getData().matches(WHITE_SPACE)) {
            // Ignore...
            return;
        }

        writeCharacters(event.asCharacters());
    }
}

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