Send stream-finish flag once on calling side.

src/AsapoWorker/streamer.py

@@ -170,10 +170,11 @@ class Streamer:
             return None, None
         except StreamFinishedError as err:
             log.info("Stream is finished")
-            self.stream_finished = True
             self._handle_end_of_stream()
-            stream_info = self.receiver.get_stream_info()
-            self.worker.stream_finished(stream_info)
+            if not self.stream_finished:
+                stream_info = self.receiver.get_stream_info()
+                self.worker.stream_finished(stream_info)
+            self.stream_finished = True
             left_msgs = len(self.receiver.get_unacknowledged_messages())
             log.info("Number of unacknowledged messages = %s", left_msgs)
             if left_msgs == 0 or self.receiver.n_resend_nacs == 0:

src/AsapoWorker/worker.py

@@ -98,9 +98,6 @@ class SimpleWorker(Worker):
     output_name_format = Config(
         "Format for deriving output name from input name",
         type=str, default="{basename}_processed-{index}")
-    is_finished = Config(
-        "Flag shows that processed stream is finished",
-        type=bool, default=False)
 
     def get_output_name(self, metadata):
         "Get the output name from output_name_format and the input metadata"
@@ -147,10 +144,9 @@ class SimpleWorker(Worker):
         """
         Function is called at the end of processing to send end-of-stream flag
         """
-        if self.sender and not self.is_finished:
+        if self.sender:
             self.sender.send_end_of_stream(stream_info['lastId'],
                                            next_stream=stream_info['nextStream'])
-            self.is_finished = True
         else:
             raise ConfigurationError(
                 "Worker wants to send data, but no sender configured!")