Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import javax.xml.stream.XMLEventReader;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;

import javax.xml.stream.events.XMLEvent;
import javax.xml.stream.util.XMLEventConsumer;

public class Main {
    /**
     * Skips 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.
     * 
     * @param reader The event stream to read, positioned after the
     *       <code>StartElement</code>
     * @throws XMLStreamException If an error occurs reading events.
     */
    public static final void skipElementContent(XMLEventReader reader) throws XMLStreamException {

        copyElementContent(reader, null);

    }

    /**
     * Skips an element's complete content. This method assumes that the
     * <code>START_ELEMENT</code> has already be passed, and when it terminates,
     * the stream will be positioned at the <code>END_ELEMENT</code>.
     * 
     * @param reader The stream reader to read.
     * @throws XMLStreamException If an error occurs reading the stream.
     */
    public static final void skipElementContent(XMLStreamReader reader) throws XMLStreamException {

        int depth = 0;
        while (depth >= 0) {

            reader.next();
            if (reader.isStartElement()) {

                depth++;

            } else if (reader.isEndElement()) {

                depth--;

            }

        }

    }

    /**
     * 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.
     * 
     * @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);

            }

        }

    }
}