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Merge pull request #176 from sartography/feature/insert_or_update_json_data 

Feature/insert or update json data
This commit is contained in:
Kevin Burnett 2023-03-13 14:53:49 -07:00 committed by GitHub
parent bdb57cb696 90f0b5ff85
commit e847d1ac1b
3 changed files with 87 additions and 60 deletions
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18
spiffworkflow-backend/src/spiffworkflow_backend/services/process_instance_processor.py
View File

@ -1101,7 +1101,7 @@ class ProcessInstanceProcessor:
self._add_bpmn_process_definitions(bpmn_spec_dict)
subprocesses = process_instance_data_dict.pop("subprocesses")
bpmn_process_parent, new_task_models, new_json_data_models = (
bpmn_process_parent, new_task_models, new_json_data_dicts = (
TaskService.add_bpmn_process(
process_instance_data_dict, self.process_instance_model
)
@ -1118,9 +1118,10 @@ class ProcessInstanceProcessor:
bpmn_process_guid=subprocess_task_id,
)
new_task_models.update(subprocess_new_task_models)
new_json_data_models.update(subprocess_new_json_data_models)
new_json_data_dicts.update(subprocess_new_json_data_models)
db.session.bulk_save_objects(new_task_models.values())
db.session.bulk_save_objects(new_json_data_models.values())
TaskService.insert_or_update_json_data_records(new_json_data_dicts)
def save(self) -> None:
"""Saves the current state of this processor to the database."""
@ -1908,10 +1909,17 @@ class ProcessInstanceProcessor:
db.session.add(details_model)
# #######
json_data = TaskService.update_task_model(
json_data_dict = TaskService.update_task_model(
task_model, spiff_task, self._serializer
)
if json_data is not None:
if json_data_dict is not None:
json_data = (
db.session.query(JsonDataModel.id)
.filter_by(hash=json_data_dict["hash"])
.first()
)
if json_data is None:
json_data = JsonDataModel(**json_data_dict)
db.session.add(json_data)
# this is the thing that actually commits the db transaction (on behalf of the other updates above as well)

103
spiffworkflow-backend/src/spiffworkflow_backend/services/task_service.py
View File

@ -2,11 +2,15 @@ import json
from hashlib import sha256
from typing import Optional
from typing import Tuple
from typing import TypedDict
from flask import current_app
from SpiffWorkflow.bpmn.serializer.workflow import BpmnWorkflow # type: ignore
from SpiffWorkflow.bpmn.serializer.workflow import BpmnWorkflowSerializer
from SpiffWorkflow.task import Task as SpiffTask # type: ignore
from SpiffWorkflow.task import TaskStateNames
from sqlalchemy.dialects.mysql import insert as mysql_insert
from sqlalchemy.dialects.postgresql import insert as postgres_insert
from spiffworkflow_backend.models.bpmn_process import BpmnProcessModel
from spiffworkflow_backend.models.db import db
@ -15,25 +19,42 @@ from spiffworkflow_backend.models.process_instance import ProcessInstanceModel
from spiffworkflow_backend.models.task import TaskModel # noqa: F401
class JsonDataDict(TypedDict):
hash: str
data: dict
class TaskService:
@classmethod
def update_task_data_on_task_model(
cls, task_model: TaskModel, task_data_dict: dict
) -> Optional[JsonDataModel]:
task_data_json = json.dumps(task_data_dict, sort_keys=True)
task_data_hash = sha256(task_data_json.encode("utf8")).hexdigest()
json_data_to_return = None
if task_model.json_data_hash != task_data_hash:
json_data = (
db.session.query(JsonDataModel.id)
.filter_by(hash=task_data_hash)
.first()
def insert_or_update_json_data_records(
cls, json_data_hash_to_json_data_dict_mapping: dict[str, JsonDataDict]
) -> None:
list_of_dicts = [*json_data_hash_to_json_data_dict_mapping.values()]
if len(list_of_dicts) > 0:
on_duplicate_key_stmt = None
if current_app.config["SPIFFWORKFLOW_BACKEND_DATABASE_TYPE"] == "mysql":
insert_stmt = mysql_insert(JsonDataModel).values(list_of_dicts)
on_duplicate_key_stmt = insert_stmt.on_duplicate_key_update(
data=insert_stmt.inserted.data, status="U"
)
if json_data is None:
json_data = JsonDataModel(hash=task_data_hash, data=task_data_dict)
json_data_to_return = json_data
else:
insert_stmt = postgres_insert(JsonDataModel).values(list_of_dicts)
on_duplicate_key_stmt = insert_stmt.on_conflict_do_nothing(
index_elements=["hash"]
)
db.session.execute(on_duplicate_key_stmt)
@classmethod
def _update_task_data_on_task_model(
cls, task_model: TaskModel, task_data_dict: dict
) -> Optional[JsonDataDict]:
task_data_json = json.dumps(task_data_dict, sort_keys=True)
task_data_hash: str = sha256(task_data_json.encode("utf8")).hexdigest()
json_data_dict: Optional[JsonDataDict] = None
if task_model.json_data_hash != task_data_hash:
json_data_dict = {"hash": task_data_hash, "data": task_data_dict}
task_model.json_data_hash = task_data_hash
return json_data_to_return
return json_data_dict
@classmethod
def update_task_model(
@ -41,7 +62,7 @@ class TaskService:
task_model: TaskModel,
spiff_task: SpiffTask,
serializer: BpmnWorkflowSerializer,
) -> Optional[JsonDataModel]:
) -> Optional[JsonDataDict]:
"""Updates properties_json and data on given task_model.
This will NOT update start_in_seconds or end_in_seconds.
@ -51,8 +72,10 @@ class TaskService:
spiff_task_data = new_properties_json.pop("data")
task_model.properties_json = new_properties_json
task_model.state = TaskStateNames[new_properties_json["state"]]
json_data = cls.update_task_data_on_task_model(task_model, spiff_task_data)
return json_data
json_data_dict = cls._update_task_data_on_task_model(
task_model, spiff_task_data
)
return json_data_dict
@classmethod
def find_or_create_task_model_from_spiff_task(
@ -64,7 +87,7 @@ class TaskService:
Optional[BpmnProcessModel],
TaskModel,
dict[str, TaskModel],
dict[str, JsonDataModel],
dict[str, JsonDataDict],
]:
spiff_task_guid = str(spiff_task.id)
task_model: Optional[TaskModel] = TaskModel.query.filter_by(
@ -72,9 +95,9 @@ class TaskService:
).first()
bpmn_process = None
new_task_models: dict[str, TaskModel] = {}
new_json_data_models: dict[str, JsonDataModel] = {}
new_json_data_dicts: dict[str, JsonDataDict] = {}
if task_model is None:
bpmn_process, new_task_models, new_json_data_models = cls.task_bpmn_process(
bpmn_process, new_task_models, new_json_data_dicts = cls.task_bpmn_process(
spiff_task, process_instance, serializer
)
task_model = TaskModel.query.filter_by(guid=spiff_task_guid).first()
@ -82,7 +105,7 @@ class TaskService:
task_model = TaskModel(
guid=spiff_task_guid, bpmn_process_id=bpmn_process.id
)
return (bpmn_process, task_model, new_task_models, new_json_data_models)
return (bpmn_process, task_model, new_task_models, new_json_data_dicts)
@classmethod
def task_subprocess(
@ -107,17 +130,17 @@ class TaskService:
spiff_task: SpiffTask,
process_instance: ProcessInstanceModel,
serializer: BpmnWorkflowSerializer,
) -> Tuple[BpmnProcessModel, dict[str, TaskModel], dict[str, JsonDataModel]]:
) -> Tuple[BpmnProcessModel, dict[str, TaskModel], dict[str, JsonDataDict]]:
subprocess_guid, subprocess = cls.task_subprocess(spiff_task)
bpmn_process: Optional[BpmnProcessModel] = None
new_task_models: dict[str, TaskModel] = {}
new_json_data_models: dict[str, JsonDataModel] = {}
new_json_data_dicts: dict[str, JsonDataDict] = {}
if subprocess is None:
bpmn_process = process_instance.bpmn_process
# This is the top level workflow, which has no guid
# check for bpmn_process_id because mypy doesn't realize bpmn_process can be None
if process_instance.bpmn_process_id is None:
bpmn_process, new_task_models, new_json_data_models = (
bpmn_process, new_task_models, new_json_data_dicts = (
cls.add_bpmn_process(
serializer.workflow_to_dict(
spiff_task.workflow._get_outermost_workflow()
@ -130,7 +153,7 @@ class TaskService:
guid=subprocess_guid
).first()
if bpmn_process is None:
bpmn_process, new_task_models, new_json_data_models = (
bpmn_process, new_task_models, new_json_data_dicts = (
cls.add_bpmn_process(
serializer.workflow_to_dict(subprocess),
process_instance,
@ -138,7 +161,7 @@ class TaskService:
subprocess_guid,
)
)
return (bpmn_process, new_task_models, new_json_data_models)
return (bpmn_process, new_task_models, new_json_data_dicts)
@classmethod
def add_bpmn_process(
@ -147,7 +170,7 @@ class TaskService:
process_instance: ProcessInstanceModel,
bpmn_process_parent: Optional[BpmnProcessModel] = None,
bpmn_process_guid: Optional[str] = None,
) -> Tuple[BpmnProcessModel, dict[str, TaskModel], dict[str, JsonDataModel]]:
) -> Tuple[BpmnProcessModel, dict[str, TaskModel], dict[str, JsonDataDict]]:
"""This creates and adds a bpmn_process to the Db session.
It will also add tasks and relating json_data entries if the bpmn_process is new.
@ -157,7 +180,7 @@ class TaskService:
bpmn_process_data_dict = bpmn_process_dict.pop("data")
new_task_models = {}
new_json_data_models = {}
new_json_data_dicts: dict[str, JsonDataDict] = {}
bpmn_process = None
if bpmn_process_parent is not None:
@ -179,16 +202,10 @@ class TaskService:
bpmn_process_data_json.encode("utf8")
).hexdigest()
if bpmn_process.json_data_hash != bpmn_process_data_hash:
json_data = (
db.session.query(JsonDataModel.id)
.filter_by(hash=bpmn_process_data_hash)
.first()
)
if json_data is None:
json_data = JsonDataModel(
hash=bpmn_process_data_hash, data=bpmn_process_data_dict
)
new_json_data_models[bpmn_process_data_hash] = json_data
new_json_data_dicts[bpmn_process_data_hash] = {
"hash": bpmn_process_data_hash,
"data": bpmn_process_data_dict,
}
bpmn_process.json_data_hash = bpmn_process_data_hash
if bpmn_process_parent is None:
@ -220,11 +237,11 @@ class TaskService:
task_model.state = TaskStateNames[state_int]
task_model.properties_json = task_properties
json_data = TaskService.update_task_data_on_task_model(
json_data_dict = TaskService._update_task_data_on_task_model(
task_model, task_data_dict
)
new_task_models[task_model.guid] = task_model
if json_data is not None:
new_json_data_models[json_data.hash] = json_data
if json_data_dict is not None:
new_json_data_dicts[json_data_dict["hash"]] = json_data_dict
return (bpmn_process, new_task_models, new_json_data_models)
return (bpmn_process, new_task_models, new_json_data_dicts)

28
spiffworkflow-backend/src/spiffworkflow_backend/services/workflow_execution_service.py
View File

@ -12,7 +12,6 @@ from SpiffWorkflow.task import TaskState
from spiffworkflow_backend.exceptions.api_error import ApiError
from spiffworkflow_backend.models.db import db
from spiffworkflow_backend.models.json_data import JsonDataModel
from spiffworkflow_backend.models.message_instance import MessageInstanceModel
from spiffworkflow_backend.models.message_instance_correlation import (
MessageInstanceCorrelationRuleModel,
@ -20,6 +19,7 @@ from spiffworkflow_backend.models.message_instance_correlation import (
from spiffworkflow_backend.models.process_instance import ProcessInstanceModel
from spiffworkflow_backend.models.spiff_step_details import SpiffStepDetailsModel
from spiffworkflow_backend.models.task import TaskModel # noqa: F401
from spiffworkflow_backend.services.task_service import JsonDataDict
from spiffworkflow_backend.services.task_service import TaskService
@ -60,7 +60,7 @@ class TaskModelSavingDelegate(EngineStepDelegate):
self.current_task_model: Optional[TaskModel] = None
self.task_models: dict[str, TaskModel] = {}
self.json_data_models: dict[str, JsonDataModel] = {}
self.json_data_dicts: dict[str, JsonDataDict] = {}
self.serializer = serializer
def should_update_task_model(self) -> bool:
@ -72,14 +72,14 @@ class TaskModelSavingDelegate(EngineStepDelegate):
def will_complete_task(self, spiff_task: SpiffTask) -> None:
if self.should_update_task_model():
_bpmn_process, task_model, new_task_models, new_json_data_models = (
_bpmn_process, task_model, new_task_models, new_json_data_dicts = (
TaskService.find_or_create_task_model_from_spiff_task(
spiff_task, self.process_instance, self.serializer
)
)
self.current_task_model = task_model
self.task_models.update(new_task_models)
self.json_data_models.update(new_json_data_models)
self.json_data_dicts.update(new_json_data_dicts)
self.current_task_model.start_in_seconds = time.time()
if self.secondary_engine_step_delegate:
self.secondary_engine_step_delegate.will_complete_task(spiff_task)
@ -87,18 +87,20 @@ class TaskModelSavingDelegate(EngineStepDelegate):
def did_complete_task(self, spiff_task: SpiffTask) -> None:
if self.current_task_model and self.should_update_task_model():
self.current_task_model.end_in_seconds = time.time()
json_data = TaskService.update_task_model(
json_data_dict = TaskService.update_task_model(
self.current_task_model, spiff_task, self.serializer
)
if json_data is not None:
self.json_data_models[json_data.hash] = json_data
if json_data_dict is not None:
self.json_data_dicts[json_data_dict["hash"]] = json_data_dict
self.task_models[self.current_task_model.guid] = self.current_task_model
if self.secondary_engine_step_delegate:
self.secondary_engine_step_delegate.did_complete_task(spiff_task)
def save(self, _commit: bool = True) -> None:
db.session.bulk_save_objects(self.task_models.values())
db.session.bulk_save_objects(self.json_data_models.values())
TaskService.insert_or_update_json_data_records(self.json_data_dicts)
if self.secondary_engine_step_delegate:
self.secondary_engine_step_delegate.save(commit=False)
db.session.commit()
@ -113,19 +115,19 @@ class TaskModelSavingDelegate(EngineStepDelegate):
| TaskState.MAYBE
| TaskState.LIKELY
):
_bpmn_process, task_model, new_task_models, new_json_data_models = (
_bpmn_process, task_model, new_task_models, new_json_data_dicts = (
TaskService.find_or_create_task_model_from_spiff_task(
waiting_spiff_task, self.process_instance, self.serializer
)
)
self.task_models.update(new_task_models)
self.json_data_models.update(new_json_data_models)
json_data = TaskService.update_task_model(
self.json_data_dicts.update(new_json_data_dicts)
json_data_dict = TaskService.update_task_model(
task_model, waiting_spiff_task, self.serializer
)
self.task_models[task_model.guid] = task_model
if json_data is not None:
self.json_data_models[json_data.hash] = json_data
if json_data_dict is not None:
self.json_data_dicts[json_data_dict["hash"]] = json_data_dict
class StepDetailLoggingDelegate(EngineStepDelegate):