Example usage for javax.xml.stream XMLInputFactory createFilteredReader

Introduction

In this page you can find the example usage for javax.xml.stream XMLInputFactory createFilteredReader.

Prototype

public abstract XMLEventReader createFilteredReader(XMLEventReader reader, EventFilter filter)
        throws XMLStreamException;

Source Link

Document

Create a filtered event reader that wraps the filter around the event reader

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader("<a></a>"));
    reader = inputFactory.createFilteredReader(reader, new ElementOnlyFilter());
    System.out.println(reader.getEventType());
}

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From source file:MainClass.java

public static void main(String[] args) throws Exception {
    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLStreamReader reader = inputFactory.createXMLStreamReader(new FileInputStream(new File("l.xml")));
    reader = inputFactory.createFilteredReader(reader, new ElementOnlyFilter());
    System.out.println(reader.getEventType());
}

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From source file:MainClass.java

public static void main(String[] args) throws Exception {
    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLEventReader reader = inputFactory.createXMLEventReader(new FileInputStream(new File("a.xml")));
    reader = inputFactory.createFilteredReader(reader, new EventFilter() {
        public boolean accept(XMLEvent event) {
            return false;
        }/*from w  ww  . java 2 s  .c o  m*/
    });
    reader = inputFactory.createFilteredReader(reader, new ElementOnlyFilter());

    System.out.println(reader.hasNext());
    System.out.println(reader.next());
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    XMLInputFactory xmlInputFactory = XMLInputFactory.newFactory();

    XMLEventReader xmlEventReader = xmlInputFactory.createXMLEventReader(new FileInputStream("input.xml"));
    InterestingElementFilter filter = new InterestingElementFilter();
    XMLEventReader interestingElementReader = xmlInputFactory.createFilteredReader(xmlEventReader, filter);

    while (interestingElementReader.hasNext()) {
        XMLEvent xmlEvent = interestingElementReader.peek();
        if (xmlEvent.isStartElement()) {
            System.out.println(xmlEvent.asStartElement().getName());
        }//www.j  av a2  s .com
        interestingElementReader.next();
    }
}

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From source file:EventFilterExample.java

public static void main(String[] args) throws Exception {
    File file = new File("text.xml");

    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLEventReader reader = inputFactory.createXMLEventReader(new FileInputStream(file));

    System.out.println("Unfiltered Count = " + countEvents(reader));

    reader = inputFactory.createXMLEventReader(new FileInputStream(file));

    EventFilter filter = new ElementOnlyFilter();
    reader = inputFactory.createFilteredReader(reader, filter);

    System.out.println("Filtered Count = " + countEvents(reader));
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    XMLInputFactory inputFactory = XMLInputFactory.newInstance();
    XMLStreamReader reader = inputFactory.createXMLStreamReader(new FileInputStream(new File("test.xml")));
    System.out.println(countEvents(reader));

    reader = inputFactory.createXMLStreamReader(new FileInputStream(new File("test.xml")));

    StreamFilter filter = new ElementOnlyFilter();
    reader = inputFactory.createFilteredReader(reader, filter);

    System.out.println(countEvents(reader));
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String filename = "yourXML.xml";

    XMLInputFactory xmlif = null;

    xmlif = XMLInputFactory.newInstance();
    xmlif.setProperty(XMLInputFactory.IS_REPLACING_ENTITY_REFERENCES, Boolean.TRUE);
    xmlif.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, Boolean.FALSE);
    xmlif.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, Boolean.TRUE);
    xmlif.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);

    System.out.println("FACTORY: " + xmlif);
    System.out.println("filename = " + filename);

    FileInputStream fis = new FileInputStream(filename);

    XMLStreamReader xmlr = xmlif.createFilteredReader(xmlif.createXMLStreamReader(fis), new Main());

    int eventType = xmlr.getEventType();
    printEventType(eventType);/*from  w w w . ja  va 2  s .  c  o m*/

    while (xmlr.hasNext()) {
        eventType = xmlr.next();
        printEventType(eventType);
        printName(xmlr, eventType);
        printText(xmlr);

        if (xmlr.isStartElement()) {
            printAttributes(xmlr);
        }
        printPIData(xmlr);
    }
}

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From source file:MyStreamFilter.java

public static void main(String[] args) throws Exception {
    String filename = "yourXML.xml";

    XMLInputFactory xmlif = null;

    xmlif = XMLInputFactory.newInstance();
    xmlif.setProperty(XMLInputFactory.IS_REPLACING_ENTITY_REFERENCES, Boolean.TRUE);
    xmlif.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, Boolean.FALSE);
    xmlif.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, Boolean.TRUE);
    xmlif.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);

    System.out.println("FACTORY: " + xmlif);
    System.out.println("filename = " + filename);

    FileInputStream fis = new FileInputStream(filename);

    XMLStreamReader xmlr = xmlif.createFilteredReader(xmlif.createXMLStreamReader(fis), new MyStreamFilter());

    int eventType = xmlr.getEventType();
    printEventType(eventType);//  w ww  . jav a2 s. co  m

    while (xmlr.hasNext()) {
        eventType = xmlr.next();
        printEventType(eventType);
        printName(xmlr, eventType);
        printText(xmlr);

        if (xmlr.isStartElement()) {
            printAttributes(xmlr);
        }
        printPIData(xmlr);
    }
}

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From source file:Main.java

public static void main(String[] args) throws Exception {
    String filename = "yourXML.xml";

    XMLInputFactory xmlif = null;

    xmlif = XMLInputFactory.newInstance();
    xmlif.setProperty(XMLInputFactory.IS_REPLACING_ENTITY_REFERENCES, Boolean.TRUE);
    xmlif.setProperty(XMLInputFactory.IS_SUPPORTING_EXTERNAL_ENTITIES, Boolean.FALSE);
    xmlif.setProperty(XMLInputFactory.IS_NAMESPACE_AWARE, Boolean.TRUE);
    xmlif.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);

    System.out.println("FACTORY: " + xmlif);
    System.out.println("filename = " + filename);

    FileInputStream fis = new FileInputStream(filename);

    XMLStreamReader xmlr = xmlif.createFilteredReader(xmlif.createXMLStreamReader(fis), new MyFilter());

    int eventType = xmlr.getEventType();
    printEventType(eventType);//from   ww w. j a v a  2s . c o  m

    while (xmlr.hasNext()) {
        eventType = xmlr.next();
        printEventType(eventType);
        printName(xmlr, eventType);
        printText(xmlr);

        if (xmlr.isStartElement()) {
            printAttributes(xmlr);
        }
        printPIData(xmlr);
    }
}

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From source file:org.psikeds.knowledgebase.xml.impl.XMLParser.java

/**
 * Helper for parsing big XML files using JAXB in combination with StAX.<br>
 * All classes in the specified package can be parsed.<br>
 * <b>Note:</b> The XML reader will not be closed. This must be invoked by
 * the caller afterwards!<br>// ww w.ja  va 2  s .  c o m
 * 
 * @param xml
 *          Reader for XML-Data
 * @param packageName
 *          Name of the package containing the JAXB-Classes,
 *          e.g. org.psikeds.knowledgebase.jaxb
 * @param handler
 *          Callback handler used to process every single found
 *          XML-Element (@see
 *          org.psikeds.knowledgebase.xml.KBParserCallback#handleElement
 *          (java.lang.Object))
 * @param filter
 *          EventFilter used for StAX-Parsing
 * @param numSkipped
 *          Number of Elements to be skipped,
 *          e.g. numSkipped = 1 for skipping the XML-Root-Element.
 * @return Total number of unmarshalled XML-Elements
 * @throws XMLStreamException
 * @throws JAXBException
 */
public static long parseXmlElements(final Reader xml, final String packageName, final KBParserCallback handler,
        final EventFilter filter, final int numSkipped) throws XMLStreamException, JAXBException {

    // init stream reader
    final XMLInputFactory staxFactory = XMLInputFactory.newInstance();
    final XMLEventReader staxReader = staxFactory.createXMLEventReader(xml);
    final XMLEventReader filteredReader = filter == null ? staxReader
            : staxFactory.createFilteredReader(staxReader, filter);

    skipXmlElements(filteredReader, numSkipped);

    // JAXB with specific package
    final JAXBContext jaxbCtx = JAXBContext.newInstance(packageName);
    final Unmarshaller unmarshaller = jaxbCtx.createUnmarshaller();

    // parsing und unmarshalling
    long counter = 0;
    while (filteredReader.peek() != null) {
        final Object element = unmarshaller.unmarshal(staxReader);
        handleElement(handler, element);
        counter++;
    }
    return counter;
}

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