DOMFactory.java 文件源码

/**
 * Generates an xml element from this pojo. Translating the fields like described
 * in the class description.
 * @param document The document in which the nodes should be.
 * @param rootName This is to use another name for the root element than the
 * simple class name.
 * @param pojo The pojo to take the fields from.
 * @param attributes The fields which should be used as attributes and not
 * as elements.
 * @return The create element representing the provided pojo.
 * @throws ParserConfigurationException Might throw a ParserConfigurationException.
 * @throws IllegalAccessException Might throw a IllegalAccessException.
 * @throws InstantiationException Might throw a InstantiationException.
 */
public Element generateSimpleElement(final Document document, final String rootName,
        final Object pojo, final List<String> attributes) 
        throws ParserConfigurationException,
        IllegalAccessException, InstantiationException {
    Element rootNode = document.createElementNS(getDefaultNamespace(), rootName);
    List<Field> fields = getNonTransientSimpleFields(pojo.getClass());
    for (Field field : fields) {            
        field.setAccessible(true);
        String fieldName = field.getName();

        if (field.get(pojo) != null) {

            if (!attributes.contains(fieldName)) {

                Element element = document.createElementNS(getDefaultNamespace(), getElementName(field));

                // handle CDATAs
                if (field.isAnnotationPresent(XmlValue.class)) {
                    CDATASection cdata = document.createCDATASection(field.get(pojo).toString());
                    element.appendChild(cdata);
                }
                else {
                  element.setTextContent(field.get(pojo).toString());                    
                }

                rootNode.appendChild(element);                    
            }
            else {
                rootNode.setAttribute(getAttributeName(field), field.get(pojo).toString());
            }
        }
    }
    return rootNode;
}