server.py 文件源码

def expose(method_or_class):
    """
    Decorator to mark a method or class to be exposed for remote calls.
    You can apply it to a method or a class as a whole.
    If you need to change the default instance mode or instance creator, also use a @behavior decorator.
    """
    if inspect.isdatadescriptor(method_or_class):
        func = method_or_class.fget or method_or_class.fset or method_or_class.fdel
        if is_private_attribute(func.__name__):
            raise AttributeError("exposing private names (starting with _) is not allowed")
        func._pyroExposed = True
        return method_or_class
    attrname = getattr(method_or_class, "__name__", None)
    if not attrname:
        # we could be dealing with a descriptor (classmethod/staticmethod), this means the order of the decorators is wrong
        if inspect.ismethoddescriptor(method_or_class):
            attrname = method_or_class.__get__(None, dict).__name__
            raise AttributeError("using @expose on a classmethod/staticmethod must be done "
                                 "after @classmethod/@taticmethod. Method: " + attrname)
        else:
            raise AttributeError("@expose cannot determine what this is: "+repr(method_or_class))
    if is_private_attribute(attrname):
        raise AttributeError("exposing private names (starting with _) is not allowed")
    if inspect.isclass(method_or_class):
        clazz = method_or_class
        log.debug("exposing all members of %r", clazz)
        for name in clazz.__dict__:
            if is_private_attribute(name):
                continue
            thing = getattr(clazz, name)
            if inspect.isfunction(thing):
                thing._pyroExposed = True
            elif inspect.ismethod(thing):
                thing.__func__._pyroExposed = True
            elif inspect.isdatadescriptor(thing):
                if getattr(thing, "fset", None):
                    thing.fset._pyroExposed = True
                if getattr(thing, "fget", None):
                    thing.fget._pyroExposed = True
                if getattr(thing, "fdel", None):
                    thing.fdel._pyroExposed = True
        clazz._pyroExposed = True
        return clazz
    method_or_class._pyroExposed = True
    return method_or_class