private Expression annotationValueToExpression(Object value) {
if (value == null
|| value instanceof String
|| value instanceof Number
|| value instanceof Character
|| value instanceof Boolean) return new ConstantExpression(value);
if (value instanceof Class)
return new ClassExpression(ClassHelper.makeWithoutCaching((Class) value));
if (value.getClass().isArray()) {
ListExpression elementExprs = new ListExpression();
int len = Array.getLength(value);
for (int i = 0; i != len; ++i)
elementExprs.addExpression(annotationValueToExpression(Array.get(value, i)));
return elementExprs;
}
return null;
}
private void configureAnnotation(AnnotationNode node, Annotation annotation) {
Class type = annotation.annotationType();
if (type == Retention.class) {
Retention r = (Retention) annotation;
RetentionPolicy value = r.value();
setRetentionPolicy(value, node);
node.setMember(
"value",
new PropertyExpression(
new ClassExpression(ClassHelper.makeWithoutCaching(RetentionPolicy.class, false)),
value.toString()));
} else if (type == Target.class) {
Target t = (Target) annotation;
ElementType[] elements = t.value();
ListExpression elementExprs = new ListExpression();
for (ElementType element : elements) {
elementExprs.addExpression(
new PropertyExpression(
new ClassExpression(ClassHelper.ELEMENT_TYPE_TYPE), element.name()));
}
node.setMember("value", elementExprs);
} else {
Method[] declaredMethods = type.getDeclaredMethods();
for (int i = 0; i < declaredMethods.length; i++) {
Method declaredMethod = declaredMethods[i];
try {
Object value = declaredMethod.invoke(annotation);
Expression valueExpression = annotationValueToExpression(value);
if (valueExpression == null) continue;
node.setMember(declaredMethod.getName(), valueExpression);
} catch (IllegalAccessException e) {
} catch (InvocationTargetException e) {
}
}
}
}
