Examples with Metadata org.apache.camel.spi.Metadata used on opensource projects

Example 16 with Metadata

use of org.apache.camel.spi.Metadata in project camel by apache.

the class CoreEipAnnotationProcessor method processElement.

private void processElement(ProcessingEnvironment processingEnv, RoundEnvironment roundEnv, TypeElement classElement, XmlElement element, VariableElement fieldElement, Set<EipOption> eipOptions, String prefix) {
    Elements elementUtils = processingEnv.getElementUtils();
    String fieldName;
    fieldName = fieldElement.getSimpleName().toString();
    if (element != null) {
        String kind = "element";
        String name = element.name();
        if (isNullOrEmpty(name) || "##default".equals(name)) {
            name = fieldName;
        }
        name = prefix + name;
        TypeMirror fieldType = fieldElement.asType();
        String fieldTypeName = fieldType.toString();
        TypeElement fieldTypeElement = findTypeElement(processingEnv, roundEnv, fieldTypeName);
        String defaultValue = findDefaultValue(fieldElement, fieldTypeName);
        String docComment = findJavaDoc(elementUtils, fieldElement, fieldName, name, classElement, true);
        boolean required = element.required();
        // metadata may overrule element required
        required = findRequired(fieldElement, required);
        // is it used as predicate (check field first and then fallback to its class)
        boolean asPredicate = fieldElement.getAnnotation(AsPredicate.class) != null;
        if (!asPredicate) {
            asPredicate = classElement.getAnnotation(AsPredicate.class) != null;
        }
        // gather enums
        Set<String> enums = new LinkedHashSet<String>();
        boolean isEnum = fieldTypeElement != null && fieldTypeElement.getKind() == ElementKind.ENUM;
        if (isEnum) {
            TypeElement enumClass = findTypeElement(processingEnv, roundEnv, fieldTypeElement.asType().toString());
            if (enumClass != null) {
                // find all the enum constants which has the possible enum value that can be used
                List<VariableElement> fields = ElementFilter.fieldsIn(enumClass.getEnclosedElements());
                for (VariableElement var : fields) {
                    if (var.getKind() == ElementKind.ENUM_CONSTANT) {
                        String val = var.toString();
                        enums.add(val);
                    }
                }
            }
        }
        // gather oneOf expression/predicates which uses language
        Set<String> oneOfTypes = new TreeSet<String>();
        boolean isOneOf = ONE_OF_TYPE_NAME.equals(fieldTypeName);
        if (isOneOf) {
            // okay its actually an language expression, so favor using that in the eip option
            kind = "expression";
            for (String language : ONE_OF_LANGUAGES) {
                fieldTypeName = language;
                TypeElement languages = findTypeElement(processingEnv, roundEnv, language);
                if (languages != null) {
                    String superClassName = canonicalClassName(languages.toString());
                    // find all classes that has that superClassName
                    Set<TypeElement> children = new LinkedHashSet<TypeElement>();
                    findTypeElementChildren(processingEnv, roundEnv, children, superClassName);
                    for (TypeElement child : children) {
                        XmlRootElement rootElement = child.getAnnotation(XmlRootElement.class);
                        if (rootElement != null) {
                            String childName = rootElement.name();
                            oneOfTypes.add(childName);
                        }
                    }
                }
            }
        }
        // special for otherwise as we want to indicate that the element is
        if ("otherwise".equals(name)) {
            isOneOf = true;
            oneOfTypes.add("otherwise");
        }
        boolean deprecated = fieldElement.getAnnotation(Deprecated.class) != null;
        String displayName = null;
        Metadata metadata = fieldElement.getAnnotation(Metadata.class);
        if (metadata != null) {
            displayName = metadata.displayName();
        }
        EipOption ep = new EipOption(name, displayName, kind, fieldTypeName, required, defaultValue, docComment, deprecated, isEnum, enums, isOneOf, oneOfTypes, asPredicate);
        eipOptions.add(ep);
    }
}

Example 17 with Metadata

use of org.apache.camel.spi.Metadata in project camel by apache.

the class CoreEipAnnotationProcessor method processElements.

private void processElements(ProcessingEnvironment processingEnv, RoundEnvironment roundEnv, TypeElement classElement, XmlElements elements, VariableElement fieldElement, Set<EipOption> eipOptions, String prefix) {
    Elements elementUtils = processingEnv.getElementUtils();
    String fieldName;
    fieldName = fieldElement.getSimpleName().toString();
    if (elements != null) {
        String kind = "element";
        String name = fieldName;
        name = prefix + name;
        TypeMirror fieldType = fieldElement.asType();
        String fieldTypeName = fieldType.toString();
        String defaultValue = findDefaultValue(fieldElement, fieldTypeName);
        String docComment = findJavaDoc(elementUtils, fieldElement, fieldName, name, classElement, true);
        boolean required = true;
        required = findRequired(fieldElement, required);
        // gather oneOf of the elements
        Set<String> oneOfTypes = new TreeSet<String>();
        for (XmlElement element : elements.value()) {
            String child = element.name();
            oneOfTypes.add(child);
        }
        String displayName = null;
        Metadata metadata = fieldElement.getAnnotation(Metadata.class);
        if (metadata != null) {
            displayName = metadata.displayName();
        }
        EipOption ep = new EipOption(name, displayName, kind, fieldTypeName, required, defaultValue, docComment, false, false, null, true, oneOfTypes, false);
        eipOptions.add(ep);
    }
}