[jira] [Work logged] (BEAM-2687) Python SDK support for Stateful Processing

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-2687?focusedWorklogId=151094&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-151094 ]

ASF GitHub Bot logged work on BEAM-2687:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 04/Oct/18 09:11
            Start Date: 04/Oct/18 09:11
    Worklog Time Spent: 10m 
      Work Description: robertwb commented on a change in pull request #6433: [BEAM-2687] Implement Timers over the Fn API.
URL: https://github.com/apache/beam/pull/6433#discussion_r222592669
 
 

 ##########
 File path: sdks/python/apache_beam/coders/coder_impl.py
 ##########
 @@ -435,6 +435,23 @@ def estimate_size(self, unused_value, nested=False):
     return 8
 
 
+class TimerCoderImpl(StreamCoderImpl):
+  """For internal use only; no backwards-compatibility guarantees."""
+  def __init__(self, payload_coder_impl):
+    self._timestamp_coder_impl = TimestampCoderImpl()
+    self._payload_coder_impl = payload_coder_impl
+
+  def encode_to_stream(self, value, out, nested):
+    self._timestamp_coder_impl.encode_to_stream(value['timestamp'], out, True)
+    self._payload_coder_impl.encode_to_stream(value.get('payload'), out, True)
+
+  def decode_from_stream(self, in_stream, nested):
+    return dict(
 
 Review comment:
   Done.

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 151094)
    Time Spent: 6h 10m  (was: 6h)

> Python SDK support for Stateful Processing
> ------------------------------------------
>
>                 Key: BEAM-2687
>                 URL: https://issues.apache.org/jira/browse/BEAM-2687
>             Project: Beam
>          Issue Type: New Feature
>          Components: sdk-py-core
>            Reporter: Ahmet Altay
>            Assignee: Charles Chen
>            Priority: Major
>          Time Spent: 6h 10m
>  Remaining Estimate: 0h
>
> Python SDK should support stateful processing (https://beam.apache.org/blog/2017/02/13/stateful-processing.html)
> In the meantime, runner capability matrix should be updated to show the lack of this feature (https://beam.apache.org/documentation/runners/capability-matrix/)
> Use this as an umbrella issue for all related issues.



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