fix: bugfix of process

bec_plugins/data_processing/saxs_imaging_processor.py

@@ -121,6 +121,7 @@ class SaxsImagingProcessor(StreamProcessor):
         # TODO hardcoded endpoint, possibe to use more general solution?
         msg = self.producer.get(topic=f"px_stream/projection_{self.proj_nr}/metadata")
         msg_raw = BECMessage.DeviceMessage.loads(msg)
+        self._update_queue(msg_raw.content["signals"], self.proj_nr)
 
     def _update_queue(self, metadata: dict, proj_nr: int) -> None:
         """Update the process queue.
@@ -191,12 +192,6 @@ class SaxsImagingProcessor(StreamProcessor):
         self.proj_nr = int(topic.split("px_stream/projection_")[1].split("/")[0])
         self._update_queue(msg.content["signals"], self.proj_nr)
 
-    def _init_data_output(self) -> None:
-        """Initialize the data output.
-        Not yet used. Should be used to initialize the output for the processed data.
-        """
-        self.data = None
-
     def start_data_consumer(self) -> None:
         """function from the parent class that we don't want to use here"""
         pass
@@ -214,17 +209,13 @@ class SaxsImagingProcessor(StreamProcessor):
 
         proj_nr, metadata = self.queue.get()
         self.num_received_msgs = 0
-        data = []
+        self.data = None
         while self.queue.empty():
-            data_msgs = self._get_data(proj_nr)
-            if data_msgs is not None:
-                data.extend(
-                    [msg.content["signals"]["data"] for msg in data_msgs if msg is not None]
-                )
-            # print(f"Loading took {time.time() - start}")
-            # start = time.time()
-            result = self.process(data, metadata)
-            # print(f"Processing took {time.time() - start}")
+            start = time.time()
+            self._get_data(proj_nr, metadata)
+            start = time.time()
+            result = self.process(self.data, metadata)
+            print(f"Processing took {time.time() - start}")
             if result is None:
                 continue
             print(f"Length of data is {result[0][0]['z'].shape}")
@@ -232,7 +223,7 @@ class SaxsImagingProcessor(StreamProcessor):
             print("Publishing result")
             self._publish_result(msg)
 
-    def _get_data(self, proj_nr: int) -> list:
+    def _get_data(self, proj_nr: int, metadata: dict) -> None:
         """Get data for given proj_nr from redis.
 
         Args:
@@ -242,16 +233,35 @@ class SaxsImagingProcessor(StreamProcessor):
             list: List of azimuthal integrated data.
 
         """
-
+        start = time.time()
         msgs = self.producer.lrange(
             f"px_stream/projection_{proj_nr}/data", self.num_received_msgs, -1
         )
+        print(f"Loading of {len(msgs)} took {time.time() - start}")
         if not msgs:
             return None
-        self.num_received_msgs += len(msgs)
-        return [BECMessage.DeviceMessage.loads(msg) for msg in msgs]
 
-    def process(self, data: list, metadata: dict) -> Optional[Tuple[dict, dict]]:
+        frame_shape = BECMessage.DeviceMessage.loads(msgs[0]).content["signals"]["data"].shape[-2:]
+
+        if self.data is None:
+            start = time.time()
+            self.data = np.empty(
+                (
+                    metadata["metadata"]["number_of_rows"],
+                    metadata["metadata"]["number_of_columns"],
+                    *frame_shape,
+                )
+            )
+            print(f"Init output took {time.time() - start}")
+        start = time.time()
+        for msg in msgs:
+            self.data[
+                self.num_received_msgs : self.num_received_msgs + 1, ...
+            ] = BECMessage.DeviceMessage.loads(msg).content["signals"]["data"]
+            self.num_received_msgs += 1
+        print(f"Casting data to array took {time.time() - start}")
+
+    def process(self, data: np.ndarray, metadata: dict) -> Optional[Tuple[dict, dict]]:
         """Process the scanning SAXS data
 
         Args:
@@ -263,10 +273,10 @@ class SaxsImagingProcessor(StreamProcessor):
 
         """
 
-        if not data:
+        if data is None:
             return None
         # TODO np.asarray is repsonsible for 95% of the processing time for function.
-        azint_data = np.asarray(data)
+        azint_data = data[0 : self.num_received_msgs, ...]
         norm_sum = metadata["norm_sum"]
         q = metadata["q"]
         out = []