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Code Issues Releases Wiki Activity

Refactor TransformerPipeIOEventHandler

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This commit is contained in:
Kristóf Tóth 2019-05-09 18:22:33 +02:00
parent 69b3b17724
commit c4d3319ed9
1 changed files with 6 additions and 10 deletions
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16
lib/tfw/components/pipe_io_event_handler.py
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@ -1,6 +1,7 @@
from abc import abstractmethod
from json import loads, dumps
from subprocess import run, PIPE
from functools import partial
from tfw import EventHandlerBase
from tfw.config.logs import logging
@ -53,18 +54,13 @@ class TransformerPipeIOEventHandler(PipeIOEventHandlerBase):
# pylint: disable=too-many-arguments
def __init__(
self, key, in_pipe_path, out_pipe_path,
serialize_cmd, deserialize_cmd,
transform_in_cmd, transform_out_cmd,
permissions=DEFAULT_PERMISSIONS
):
self._serialize_cmd, self._deserialize_cmd = serialize_cmd, deserialize_cmd
self._transform_in = partial(self._transform_message, transform_in_cmd)
self._transform_out = partial(self._transform_message, transform_out_cmd)
super().__init__(key, in_pipe_path, out_pipe_path, permissions)
def _serialize_message(self, message):
return self._transform_message(self._serialize_cmd, message)
def _deserialize_message(self, message):
return self._transform_message(self._deserialize_cmd, message)
@staticmethod
def _transform_message(transform_cmd, message):
proc = run(
@ -80,12 +76,12 @@ class TransformerPipeIOEventHandler(PipeIOEventHandlerBase):
def handle_event(self, message):
json_bytes = dumps(message).encode()
transformed_bytes = self._serialize_message(json_bytes)
transformed_bytes = self._transform_out(json_bytes)
if transformed_bytes:
self.pipe_io.send_message(transformed_bytes)
def handle_pipe_event(self, message_bytes):
transformed_bytes = self._deserialize_message(message_bytes)
transformed_bytes = self._transform_in(message_bytes)
if transformed_bytes:
json_message = loads(transformed_bytes)
self.server_connector.send(json_message)