Example usage for javax.xml.stream.util XMLEventConsumer add

Introduction

In this page you can find the example usage for javax.xml.stream.util XMLEventConsumer add.

Prototype

public void add(XMLEvent event) throws XMLStreamException;

Source Link

Document

This method adds an event to the consumer.

Usage

From source file:Main.java

/**
 * Copies an element and all its content from the provided event reader, to
 * the provided event consumer. The event reader must be positioned before a
 * start element event, or this method has no effect.
 * //  w  ww .  j a v  a  2 s  . c  o m
 * @param reader The reader from which to read the events.
 * @param consumer The destination for read events, or <code>null</code> to
 *       ignore all events.
 * @throws XMLStreamException If an error occurs reading or writing the
 *             events.
 */
public static final void copyElement(XMLEventReader reader, XMLEventConsumer consumer)
        throws XMLStreamException {

    if (!reader.hasNext())
        return;

    XMLEvent event = reader.peek();
    if (!event.isStartElement())
        return;

    int depth = 0;
    do {

        XMLEvent currEvt = reader.nextEvent();
        if (currEvt.isStartElement()) {

            depth++;

        } else if (currEvt.isEndElement()) {

            depth--;

        }

        if (consumer != null) {

            consumer.add(currEvt);

        }

    } while (depth > 0 && reader.hasNext());

}

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From source file:Main.java

/**
 * Copies all events within a <code>StartElement</code> until the matching
 * <code>EndElement</code> is reached. This method assumes that the reader
 * is positioned after the <code>StartElement</code> event, and when the
 * method completes, the stream will be positioned before the 
 * <code>EndElement</code> event, but it will not consume the end tag.
 * //from   www  . j  a va 2s.com
 * @param reader The event stream to read, positioned after the
 *       <code>StartElement</code>
 * @param consumer The destination for events read from teh stream, or
 *       <code>null</code> to ignore the events completely.
 * @throws XMLStreamException If an error occurs reading events.
 */
public static final void copyElementContent(XMLEventReader reader, XMLEventConsumer consumer)
        throws XMLStreamException {

    if (!reader.hasNext())
        return;

    for (int depth = 1; true;) {

        // peek and see if we're at the end element
        XMLEvent currEvt = reader.peek();
        if (currEvt.isEndElement()) {

            depth--;
            if (depth == 0) {

                break;

            }

        } else if (currEvt.isStartElement()) {

            depth++;

        }

        // consume the event
        currEvt = reader.nextEvent();

        if (consumer != null) {

            consumer.add(currEvt);

        }

    }

}

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