MappingReader.java 文件源码

private Document toDom4jDocument(XMLEventReader staxEventReader, Origin origin) {
    STAXEventReader dom4jStaxEventReader = new STAXEventReader();
    try {
        // the dom4j converter class is touchy about comments (aka, comments make it implode)
        // so wrap the event stream in a filtering stream to filter out comment events
        staxEventReader = new FilteringXMLEventReader( staxEventReader ) {
            @Override
            protected XMLEvent filterEvent(XMLEvent event, boolean peek) {
                return event.getEventType() == XMLStreamConstants.COMMENT
                        ? null
                        : event;
            }
        };

        return dom4jStaxEventReader.readDocument( staxEventReader );
    }
    catch (XMLStreamException e) {
        throw new InvalidMappingException( "Unable to read StAX source as dom4j Document for processing", origin, e );
    }
}