private void scanForMultipart(
ExecutableElement executableElement, RestDocumentation.Resource.Method doc) {
for (VariableElement var : executableElement.getParameters()) {
TypeMirror varType = var.asType();
if (varType.toString().startsWith(MultipartHttpServletRequest.class.getName())) {
doc.setMultipartRequest(true);
return;
}
}
}
private JsonType newJsonType(TypeMirror typeMirror) {
if (isJsonPrimitive(typeMirror)) {
return new JsonPrimitive(typeMirror.toString());
} else if (typeMirror.getKind() == TypeKind.DECLARED) {
// some sort of object... walk it
DeclaredType type = (DeclaredType) typeMirror;
return newJsonType(type, type.getTypeArguments(), new HashSet<DeclaredType>());
} else if (typeMirror.getKind() == TypeKind.VOID) {
return null;
} else if (typeMirror.getKind() == TypeKind.ARRAY) {
return newJsonType(((ArrayType) typeMirror).getComponentType());
} else {
throw new UnsupportedOperationException(typeMirror.toString());
}
}
private boolean isInstanceOf(TypeMirror typeMirror, Class type) {
if (!(typeMirror instanceof DeclaredType)) {
return false;
}
if (typeMirror.toString().startsWith(type.getName())) {
return true;
}
DeclaredType declaredType = (DeclaredType) typeMirror;
TypeElement typeElement = (TypeElement) declaredType.asElement();
for (TypeMirror iface : typeElement.getInterfaces()) {
if (isInstanceOf(iface, type)) {
return true;
}
}
return isInstanceOf(typeElement.getSuperclass(), type);
}
@Override
public JsonType visitDeclared(DeclaredType declaredType, Void o) {
if (isJsonPrimitive(declaredType)) {
// 'primitive'-ish things
return new JsonPrimitive(declaredType.toString());
} else if (isInstanceOf(declaredType, Collection.class)) {
if (declaredType.getTypeArguments().size() == 0) {
return new JsonArray(new JsonPrimitive(Object.class.getName()));
} else {
TypeMirror elem = declaredType.getTypeArguments().get(0);
return new JsonArray(elem.accept(this, o));
}
} else if (isInstanceOf(declaredType, Map.class)) {
if (declaredType.getTypeArguments().size() == 0) {
return new JsonDict(
new JsonPrimitive(Object.class.getName()), new JsonPrimitive(Object.class.getName()));
} else {
TypeMirror key = declaredType.getTypeArguments().get(0);
TypeMirror val = declaredType.getTypeArguments().get(1);
return new JsonDict(key.accept(this, o), val.accept(this, o));
}
} else {
TypeElement element = (TypeElement) declaredType.asElement();
if (element.getKind() == ElementKind.ENUM) {
List<String> enumConstants = new ArrayList();
for (Element e : element.getEnclosedElements()) {
if (e.getKind() == ElementKind.ENUM_CONSTANT) {
enumConstants.add(e.toString());
}
}
JsonPrimitive primitive =
new JsonPrimitive(String.class.getName()); // TODO is this always a string?
primitive.setRestrictions(enumConstants);
return primitive;
} else {
return buildType(declaredType, element);
}
}
}
@Override
public JsonType visitUnknown(TypeMirror typeMirror, Void o) {
throw new UnsupportedOperationException(typeMirror.toString());
}
private boolean isJsonPrimitive(TypeMirror typeMirror) {
return (typeMirror.getKind().isPrimitive() || JsonPrimitive.isPrimitive(typeMirror.toString()));
}