start workflow job -> initialize workflow

temporalio/bridge/worker.py

@@ -321,11 +321,11 @@ async def decode_activation(
                 await codec.decode_failure(job.resolve_signal_external_workflow.failure)
         elif job.HasField("signal_workflow"):
             await _decode_payloads(job.signal_workflow.input, codec)
-        elif job.HasField("start_workflow"):
-            await _decode_payloads(job.start_workflow.arguments, codec)
-            if job.start_workflow.HasField("continued_failure"):
-                await codec.decode_failure(job.start_workflow.continued_failure)
-            for val in job.start_workflow.memo.fields.values():
+        elif job.HasField("initialize_workflow"):
+            await _decode_payloads(job.initialize_workflow.arguments, codec)
+            if job.initialize_workflow.HasField("continued_failure"):
+                await codec.decode_failure(job.initialize_workflow.continued_failure)
+            for val in job.initialize_workflow.memo.fields.values():
                 # This uses API payload not bridge payload
                 new_payload = (await codec.decode([val]))[0]
                 val.metadata.clear()

temporalio/worker/_workflow.py

@@ -206,12 +206,12 @@ async def _handle_activation(
 
         # Extract a couple of jobs from the activation
         cache_remove_job = None
-        start_job = None
+        init_job = None
         for job in act.jobs:
             if job.HasField("remove_from_cache"):
                 cache_remove_job = job.remove_from_cache
-            elif job.HasField("start_workflow"):
-                start_job = job.start_workflow
+            elif job.HasField("initialize_workflow"):
+                init_job = job.initialize_workflow
 
         # Build default success completion (e.g. remove-job-only activations)
         completion = (
@@ -235,16 +235,16 @@ async def _handle_activation(
             if not cache_remove_job or not self._disable_safe_eviction:
                 workflow = self._running_workflows.get(act.run_id)
             if not workflow and not cache_remove_job:
-                # Must have a start job to create instance
-                if not start_job:
+                # Must have a initialize job to create instance
+                if not init_job:
                     raise RuntimeError(
-                        "Missing start workflow, workflow could have unexpectedly been removed from cache"
+                        "Missing initialize workflow, workflow could have unexpectedly been removed from cache"
                     )
-                workflow = self._create_workflow_instance(act, start_job)
+                workflow = self._create_workflow_instance(act, init_job)
                 self._running_workflows[act.run_id] = workflow
-            elif start_job:
+            elif init_job:
                 # This should never happen
-                logger.warn("Cache already exists for activation with start job")
+                logger.warn("Cache already exists for activation with initialize job")
 
             # Run activation in separate thread so we can check if it's
             # deadlocked
@@ -354,54 +354,54 @@ async def _handle_activation(
     def _create_workflow_instance(
         self,
         act: temporalio.bridge.proto.workflow_activation.WorkflowActivation,
-        start: temporalio.bridge.proto.workflow_activation.StartWorkflow,
+        init: temporalio.bridge.proto.workflow_activation.InitializeWorkflow,
     ) -> WorkflowInstance:
         # Get the definition
-        defn = self._workflows.get(start.workflow_type, self._dynamic_workflow)
+        defn = self._workflows.get(init.workflow_type, self._dynamic_workflow)
         if not defn:
             workflow_names = ", ".join(sorted(self._workflows.keys()))
             raise temporalio.exceptions.ApplicationError(
-                f"Workflow class {start.workflow_type} is not registered on this worker, available workflows: {workflow_names}",
+                f"Workflow class {init.workflow_type} is not registered on this worker, available workflows: {workflow_names}",
                 type="NotFoundError",
             )
 
         # Build info
         parent: Optional[temporalio.workflow.ParentInfo] = None
-        if start.HasField("parent_workflow_info"):
+        if init.HasField("parent_workflow_info"):
             parent = temporalio.workflow.ParentInfo(
-                namespace=start.parent_workflow_info.namespace,
-                run_id=start.parent_workflow_info.run_id,
-                workflow_id=start.parent_workflow_info.workflow_id,
+                namespace=init.parent_workflow_info.namespace,
+                run_id=init.parent_workflow_info.run_id,
+                workflow_id=init.parent_workflow_info.workflow_id,
             )
         info = temporalio.workflow.Info(
-            attempt=start.attempt,
-            continued_run_id=start.continued_from_execution_run_id or None,
-            cron_schedule=start.cron_schedule or None,
-            execution_timeout=start.workflow_execution_timeout.ToTimedelta()
-            if start.HasField("workflow_execution_timeout")
+            attempt=init.attempt,
+            continued_run_id=init.continued_from_execution_run_id or None,
+            cron_schedule=init.cron_schedule or None,
+            execution_timeout=init.workflow_execution_timeout.ToTimedelta()
+            if init.HasField("workflow_execution_timeout")
             else None,
-            headers=dict(start.headers),
+            headers=dict(init.headers),
             namespace=self._namespace,
             parent=parent,
-            raw_memo=dict(start.memo.fields),
-            retry_policy=temporalio.common.RetryPolicy.from_proto(start.retry_policy)
-            if start.HasField("retry_policy")
+            raw_memo=dict(init.memo.fields),
+            retry_policy=temporalio.common.RetryPolicy.from_proto(init.retry_policy)
+            if init.HasField("retry_policy")
             else None,
             run_id=act.run_id,
-            run_timeout=start.workflow_run_timeout.ToTimedelta()
-            if start.HasField("workflow_run_timeout")
+            run_timeout=init.workflow_run_timeout.ToTimedelta()
+            if init.HasField("workflow_run_timeout")
             else None,
             search_attributes=temporalio.converter.decode_search_attributes(
-                start.search_attributes
+                init.search_attributes
             ),
             start_time=act.timestamp.ToDatetime().replace(tzinfo=timezone.utc),
             task_queue=self._task_queue,
-            task_timeout=start.workflow_task_timeout.ToTimedelta(),
+            task_timeout=init.workflow_task_timeout.ToTimedelta(),
             typed_search_attributes=temporalio.converter.decode_typed_search_attributes(
-                start.search_attributes
+                init.search_attributes
             ),
-            workflow_id=start.workflow_id,
-            workflow_type=start.workflow_type,
+            workflow_id=init.workflow_id,
+            workflow_type=init.workflow_type,
         )
 
         # Create instance from details
@@ -411,7 +411,7 @@ def _create_workflow_instance(
             interceptor_classes=self._interceptor_classes,
             defn=defn,
             info=info,
-            randomness_seed=start.randomness_seed,
+            randomness_seed=init.randomness_seed,
             extern_functions=self._extern_functions,
             disable_eager_activity_execution=self._disable_eager_activity_execution,
             worker_level_failure_exception_types=self._workflow_failure_exception_types,

temporalio/worker/_workflow_instance.py

@@ -354,8 +354,8 @@ def activate(
                 elif job.HasField("signal_workflow") or job.HasField("do_update"):
                     job_sets[1].append(job)
                 elif not job.HasField("query_workflow"):
-                    if job.HasField("start_workflow"):
-                        start_job = job.start_workflow
+                    if job.HasField("initialize_workflow"):
+                        start_job = job.initialize_workflow
                     job_sets[2].append(job)
                 else:
                     job_sets[3].append(job)
@@ -477,8 +477,8 @@ def _apply(
             )
         elif job.HasField("signal_workflow"):
             self._apply_signal_workflow(job.signal_workflow)
-        elif job.HasField("start_workflow"):
-            self._apply_start_workflow(job.start_workflow)
+        elif job.HasField("initialize_workflow"):
+            self._apply_initialize_workflow(job.initialize_workflow)
         elif job.HasField("update_random_seed"):
             self._apply_update_random_seed(job.update_random_seed)
         else:
@@ -847,8 +847,8 @@ def _apply_signal_workflow(
             return
         self._process_signal_job(signal_defn, job)
 
-    def _apply_start_workflow(
-        self, job: temporalio.bridge.proto.workflow_activation.StartWorkflow
+    def _apply_initialize_workflow(
+        self, job: temporalio.bridge.proto.workflow_activation.InitializeWorkflow
     ) -> None:
         # Async call to run on the scheduler thread. This will be wrapped in
         # another function which applies exception handling.
@@ -886,14 +886,14 @@ def _apply_update_random_seed(
         self._random.seed(job.randomness_seed)
 
     def _make_workflow_input(
-        self, start_job: temporalio.bridge.proto.workflow_activation.StartWorkflow
+        self, init_job: temporalio.bridge.proto.workflow_activation.InitializeWorkflow
     ) -> ExecuteWorkflowInput:
         # Set arg types, using raw values for dynamic
         arg_types = self._defn.arg_types
         if not self._defn.name:
             # Dynamic is just the raw value for each input value
-            arg_types = [temporalio.common.RawValue] * len(start_job.arguments)
-        args = self._convert_payloads(start_job.arguments, arg_types)
+            arg_types = [temporalio.common.RawValue] * len(init_job.arguments)
+        args = self._convert_payloads(init_job.arguments, arg_types)
         # Put args in a list if dynamic
         if not self._defn.name:
             args = [args]
@@ -903,7 +903,7 @@ def _make_workflow_input(
             # TODO(cretz): Remove cast when https://github.com/python/mypy/issues/5485 fixed
             run_fn=cast(Callable[..., Awaitable[Any]], self._defn.run_fn),
             args=args,
-            headers=start_job.headers,
+            headers=init_job.headers,
         )
 
     #### _Runtime direct workflow call overrides ####

tests/worker/test_workflow.py

@@ -1553,7 +1553,9 @@ async def test_workflow_with_custom_runner(client: Client):
         )
         assert result == "Hello, Temporal!"
     # Confirm first activation and last completion
-    assert runner._pairs[0][0].jobs[0].start_workflow.workflow_type == "HelloWorkflow"
+    assert (
+        runner._pairs[0][0].jobs[0].initialize_workflow.workflow_type == "HelloWorkflow"
+    )
     assert (
         runner._pairs[-1][-1]
         .successful.commands[0]