EipAnnotationProcessor.java 文件源码

/**
 * Special for processing an @XmlElementRef outputs field
 */
private void processOutputs(RoundEnvironment roundEnv, TypeElement originalClassType, XmlElementRef elementRef,
                            VariableElement fieldElement, String fieldName, Set<EipOption> eipOptions, String prefix) {
    if ("outputs".equals(fieldName) && supportOutputs(originalClassType)) {
        String kind = "element";
        String name = elementRef.name();
        if (isNullOrEmpty(name) || "##default".equals(name)) {
            name = fieldName;
        }
        name = prefix + name;
        TypeMirror fieldType = fieldElement.asType();
        String fieldTypeName = fieldType.toString();

        // gather oneOf which extends any of the output base classes
        Set<String> oneOfTypes = new TreeSet<String>();
        // find all classes that has that superClassName
        Set<TypeElement> children = new LinkedHashSet<TypeElement>();
        for (String superclass : ONE_OF_OUTPUTS) {
            findTypeElementChildren(roundEnv, children, superclass);
        }
        for (TypeElement child : children) {
            XmlRootElement rootElement = child.getAnnotation(XmlRootElement.class);
            if (rootElement != null) {
                String childName = rootElement.name();
                if (childName != null) {
                    oneOfTypes.add(childName);
                }
            }
        }

        // remove some types which are not intended as an output in eips
        oneOfTypes.remove("route");

        EipOption ep = new EipOption(name, kind, fieldTypeName, true, "", "", false, false, null, true, oneOfTypes);
        eipOptions.add(ep);
    }
}