jsonrpc.py 文件源码

def _marshaled_dispatch(self, data, dispatch_method=None, path=None):
        """Dispatches an JSON-RPC method from marshalled (JSON) data.

        JSON-RPC methods are dispatched from the marshalled (JSON) data
        using the _dispatch method and the result is returned as
        marshalled data. For backwards compatibility, a dispatch
        function can be provided as an argument (see comment in
        SimpleJSONRPCRequestHandler.do_POST) but overriding the
        existing method through subclassing is the prefered means
        of changing method dispatch behavior.
        """
        rawreq = json.loads(data, object_hook=JSONDecoder())

        req_id = rawreq.get('id', 0)
        method = rawreq['method']
        params = rawreq.get('params', [])

        response = {'id': req_id}

        try:
            # generate response
            if dispatch_method is not None:
                response['result'] = dispatch_method(method, params)
            else:
                response['result'] = self._dispatch(method, params)
        except (UserError, UserWarning, NotLogged,
                ConcurrencyException), exception:
            response['error'] = exception.args
        except Exception:
            tb_s = ''.join(traceback.format_exception(*sys.exc_info()))
            for path in sys.path:
                tb_s = tb_s.replace(path, '')
            # report exception back to server
            response['error'] = (str(sys.exc_value), tb_s)

        return json.dumps(response, cls=JSONEncoder)