AbstractMarshaller.java 文件源码

/**
 * Template method for handling {@code StaxResult}s.
 * <p>This implementation delegates to {@code marshalXMLSteamWriter} or
 * {@code marshalXMLEventConsumer}, depending on what is contained in the
 * {@code StaxResult}.
 * @param graph the root of the object graph to marshal
 * @param staxResult a JAXP 1.4 {@link StAXSource}
 * @throws XmlMappingException if the given object cannot be marshalled to the result
 * @throws IllegalArgumentException if the {@code domResult} is empty
 * @see #marshalDomNode(Object, org.w3c.dom.Node)
 */
protected void marshalStaxResult(Object graph, Result staxResult) throws XmlMappingException {
    XMLStreamWriter streamWriter = StaxUtils.getXMLStreamWriter(staxResult);
    if (streamWriter != null) {
        marshalXmlStreamWriter(graph, streamWriter);
    }
    else {
        XMLEventWriter eventWriter = StaxUtils.getXMLEventWriter(staxResult);
        if (eventWriter != null) {
            marshalXmlEventWriter(graph, eventWriter);
        }
        else {
            throw new IllegalArgumentException("StaxResult contains neither XMLStreamWriter nor XMLEventConsumer");
        }
    }
}