Examples with XmlElement org.jgroups.annotations.XmlElement used on opensource projects

Example 1 with XmlElement

use of org.jgroups.annotations.XmlElement in project JGroups by belaban.

the class XMLSchemaGenerator method createXMLTree.

private static Element createXMLTree(final Document xmldoc, Class<?> clazz, String pkgname) throws Exception {
    Element classElement = xmldoc.createElement("xs:element");
    String elementName = pkgname + "." + clazz.getSimpleName();
    if (elementName.isEmpty()) {
        throw new IllegalArgumentException("Cannot create empty attribute name for element xs:element, class is " + clazz);
    }
    elementName = elementName.replace(PROT_PACKAGE + ".", "");
    classElement.setAttribute("name", elementName);
    final Element complexType = xmldoc.createElement("xs:complexType");
    classElement.appendChild(complexType);
    // the protocol has its own subtree
    XmlElement el = Util.getAnnotation(clazz, XmlElement.class);
    if (el != null) {
        Element choice = xmldoc.createElement("xs:choice");
        choice.setAttribute("minOccurs", "0");
        choice.setAttribute("maxOccurs", "unbounded");
        complexType.appendChild(choice);
        Element tmp = xmldoc.createElement("xs:element");
        tmp.setAttribute("name", el.name());
        tmp.setAttribute("type", el.type());
        choice.appendChild(tmp);
    }
    Map<String, DelayingElementWriter> sortedElements = new TreeMap<>();
    XmlAttribute xml_attr = Util.getAnnotation(clazz, XmlAttribute.class);
    if (xml_attr != null) {
        String[] attrs = xml_attr.attrs();
        if (attrs.length > 0) {
            // to weed out dupes
            Set<String> set = new HashSet<>(Arrays.asList(attrs));
            for (final String attr : set) {
                sortedElements.put(attr, () -> {
                    Element attributeElement = xmldoc.createElement("xs:attribute");
                    attributeElement.setAttribute("name", attr);
                    attributeElement.setAttribute("type", "xs:string");
                    complexType.appendChild(attributeElement);
                });
            }
        }
    }
    // iterate fields
    for (Class<?> clazzInLoop = clazz; clazzInLoop != null; clazzInLoop = clazzInLoop.getSuperclass()) {
        Field[] fields = clazzInLoop.getDeclaredFields();
        for (Field field : fields) {
            if (field.isAnnotationPresent(Property.class)) {
                final String property;
                final Property r = field.getAnnotation(Property.class);
                boolean annotationRedefinesName = !r.name().isEmpty() && r.deprecatedMessage().isEmpty();
                if (annotationRedefinesName) {
                    property = r.name();
                } else {
                    property = field.getName();
                }
                if (property == null || property.isEmpty()) {
                    throw new IllegalArgumentException("Cannot create empty attribute name for element xs:attribute, field is " + field);
                }
                sortedElements.put(property, () -> {
                    Element attributeElement = xmldoc.createElement("xs:attribute");
                    attributeElement.setAttribute("name", property);
                    // Agreement with Bela Ban on Jan-20-2009 (Go Obama!!!) to treat all types as
                    // xs:string since we do not know where users are going to use
                    // replacement tokens in configuration files. Therefore, the type becomes
                    // indeterminate.
                    attributeElement.setAttribute("type", "xs:string");
                    complexType.appendChild(attributeElement);
                    Element annotationElement = xmldoc.createElement("xs:annotation");
                    attributeElement.appendChild(annotationElement);
                    Element documentationElement = xmldoc.createElement("xs:documentation");
                    documentationElement.setTextContent(r.description());
                    annotationElement.appendChild(documentationElement);
                });
            }
        }
    }
    // iterate methods
    Method[] methods = clazz.getMethods();
    for (Method method : methods) {
        if (method.isAnnotationPresent(Property.class)) {
            final Property annotation = method.getAnnotation(Property.class);
            final String name;
            if (annotation.name().length() < 1) {
                name = Util.methodNameToAttributeName(method.getName());
            } else {
                name = annotation.name();
            }
            sortedElements.put(name, () -> {
                Element attributeElement = xmldoc.createElement("xs:attribute");
                attributeElement.setAttribute("name", name);
                attributeElement.setAttribute("type", "xs:string");
                complexType.appendChild(attributeElement);
                String desc = annotation.description();
                if (!desc.isEmpty()) {
                    Element annotationElement = xmldoc.createElement("xs:annotation");
                    attributeElement.appendChild(annotationElement);
                    Element documentationElement = xmldoc.createElement("xs:documentation");
                    documentationElement.setTextContent(annotation.description());
                    annotationElement.appendChild(documentationElement);
                }
            });
        }
    }
    // write out ordered and duplicates weeded out elements
    for (Map.Entry<String, DelayingElementWriter> entry : sortedElements.entrySet()) {
        entry.getValue().writeElement();
    }
    return classElement;
}