def send_message(self, request):
logger.info("Sending message based on Camunda message end event")
serializer = CamundaMessagerSerializer(data=request.data)
if serializer.is_valid():
message_name = serializer.validated_data["message_name"]
case_identification = serializer.validated_data["case_id"]
process_variables = serializer.validated_data["process_variables"]
process_variables["endpoint"] = {
"value": settings.ZAKEN_CONTAINER_HOST
}
raw_response = CamundaService().send_message(
message_name=message_name,
message_process_variables=process_variables)
if raw_response.ok:
response = raw_response.json()[0]
camunda_id = response["processInstance"]["id"]
case = Case.objects.get(identification=case_identification)
case.camunda_id = camunda_id
case.save()
logger.info(f"Message send {message_name} ended succesfully")
return Response(status=status.HTTP_200_OK)
rendered_content = raw_response.content.decode("UTF-8")
logger.error(f"FAIL: Message send response:{rendered_content}")
return Response(status=status.HTTP_400_BAD_REQUEST)
else:
logger.error(f"FAIL: Message send {serializer.errors}")
return Response(status=status.HTTP_400_BAD_REQUEST)
def update_decision_with_summon(sender, instance, created, **kwargs):
"""
TODO: Temporary hook to update decision with a summon instance.
This will be resolved when we support multiple summons.
"""
if created:
# TODO: create belastingdienst number
if instance.case.summons.count() == 1:
instance.summon = instance.case.summons.all()[0]
instance.save()
task = False
for camunda_id in instance.case.camunda_ids:
task = CamundaService().get_task_by_task_name_id_and_camunda_id(
"task_create_decision", camunda_id)
if task:
break
if task:
CamundaService().complete_task(
task["id"],
{"type_besluit": {
"value": instance.decision_type.camunda_option
}},
)
def create_summon_instance_in_camunda(sender, instance, created, **kwargs):
if created:
# TODO: create belastingdienst number
if instance.case.summons.count() == 1:
instance.summon = instance.case.summons.all()[0]
instance.save()
task = False
for camunda_id in instance.case.camunda_ids:
task = CamundaService().get_task_by_task_name_id_and_camunda_id(
"task_create_summon", camunda_id
)
if task:
break
if task:
CamundaService().complete_task(
task["id"],
{
"type_aanschrijving": {"value": instance.type.camunda_option},
"names": {
"value": ", ".join(
[person.__str__() for person in instance.persons.all()]
)
},
},
)
def complete_camunda_task_create_debrief(sender, instance, created, **kwargs):
task = CamundaService().get_task_by_task_name_id_and_camunda_id(
"task_create_debrief", instance.case.camunda_id)
if task:
CamundaService().complete_task(
task["id"], {"violation": {
"value": instance.violation
}})
def complete_camunda_task_create_schedule(sender, instance, created, **kwargs):
task = False
for camunda_id in instance.case.camunda_ids:
task = CamundaService().get_task_by_task_name_id_and_camunda_id(
"task_create_schedule", camunda_id
)
if task:
break
if task:
CamundaService().complete_task(task["id"])
def complete_camunda_task_create_visit(sender, instance, created, **kwargs):
task = CamundaService().get_task_by_task_name_id_and_camunda_id(
"task_create_visit", instance.case.camunda_id
)
if task:
CamundaService().complete_task(
task["id"],
{
"situation": {"value": instance.situation},
"can_next_visit_go_ahead": {"value": instance.can_next_visit_go_ahead},
},
)
def start_camunda_instance(self, identification, request_body):
(camunda_id, response) = CamundaService().start_instance(
case_identification=identification, request_body=request_body)
if camunda_id:
case = Case.objects.get(identification=identification)
case.camunda_id = camunda_id
case.save()
def complete_task(self, request):
context = {"request": self.request}
serializer = CamundaTaskCompleteSerializer(data=request.data,
context=context)
if serializer.is_valid():
data = serializer.validated_data
# Task data can't be retrieved after it's been completed, so make sure to retrieve it first.
task_id = data["camunda_task_id"]
task = CamundaService().get_task(task_id)
# Boolean values should be converted to string values #ThanksCamunda
variables = data.get("variables", {})
for key in variables.keys():
if "value" in variables[key]:
if variables[key]["value"] is True:
variables[key]["value"] = "true"
elif variables[key]["value"] is False:
variables[key]["value"] = "false"
task_completed = CamundaService().complete_task(
data["camunda_task_id"], variables)
if task_completed:
GenericCompletedTask.objects.create(
author=data["author"],
case=data["case"],
description=task["name"],
variables=variables,
)
return Response(
f"Task {data['camunda_task_id']} has been completed")
else:
return Response(
"Camunda service is offline",
status=status.HTTP_503_SERVICE_UNAVAILABLE,
)
return Response(status=status.HTTP_400_BAD_REQUEST)
def complete_task(self, request):
context = {"request": self.request}
serializer = CamundaTaskCompleteSerializer(data=request.data,
context=context)
if serializer.is_valid():
data = serializer.validated_data
# Task data can't be retrieved after it's been completed, so make sure to retrieve it first.
task_id = data["camunda_task_id"]
task = CamundaService().get_task(task_id)
variables = data.get("variables", {})
# Get original structured task form from cache
original_camunda_task_form = CamundaService._get_task_form_cache(
CamundaService._get_task_form_cache_key(task_id))
form_dict = dict(
(t.get("name"), t) for t in original_camunda_task_form)
for key, value in variables.items():
# Only for selects, include original readable value from options
value["value_verbose"] = (dict(
(o.get("value"), o.get("label"))
for o in form_dict.get(key).get("options", [])).get(
value["value"]) if form_dict.get(key).get(
"options", []) else value["value"])
# Include original label
value["label"] = form_dict.get(key, {}).get("label")
data["variables"] = variables
data["description"] = task["name"]
GenericCompletedTask.objects.create(**data)
return Response(
f"Task {data['camunda_task_id']} has been completed")
return Response(status=status.HTTP_400_BAD_REQUEST)
def update_due_date(self, request):
serializer = CamundaDateUpdateSerializer(data=request.data)
if serializer.is_valid():
data = serializer.validated_data
response = CamundaService().update_due_date_task(
data["camunda_task_id"], data["date"])
if response:
return Response(status=status.HTTP_200_OK)
return Response(
"Camunda service is offline",
status=status.HTTP_503_SERVICE_UNAVAILABLE,
)
return Response(status=status.HTTP_400_BAD_REQUEST)
def start_process(self, request, pk):
serializer = self.serializer_class(data=request.data)
if serializer.is_valid():
data = serializer.validated_data
instance = data["camunda_process_id"]
response = CamundaService().send_message(
message_name=instance.camunda_message_name)
if response:
return Response(
data=f"Process has started {str(response.content)}",
status=status.HTTP_200_OK,
)
return Response(
data="Camunda process has not started.",
status=status.HTTP_500_INTERNAL_SERVER_ERROR,
)
def send_message_inside_of_process(self, request):
logger.info(
"Sending message based on Camunda message to process instance")
serializer = CamundaMessageForProcessInstanceSerializer(
data=request.data)
if serializer.is_valid():
raw_response = CamundaService().send_message_to_process_instance(
message_name=serializer.validated_data["message_name"],
process_instance_id=serializer.
validated_data["camunda_process_id"],
)
if raw_response.ok:
return Response(status=status.HTTP_200_OK)
else:
return Response(status=status.HTTP_503_SERVICE_UNAVAILABLE, )
else:
logger.error(f"FAIL: Message send {serializer.errors}")
return Response(status=status.HTTP_400_BAD_REQUEST,
data=serializer.errors)
def list(self, request):
role = request.GET.get(role_parameter.name)
tasks = CamundaService().get_tasks_by_role(role)
# Camunda tasks can be an empty list or boolean. TODO: This should just be one datatype
if tasks is False:
return Response(
"Camunda service is offline",
status=status.HTTP_503_SERVICE_UNAVAILABLE,
)
else:
result = []
for task in tasks:
try:
case = Case.objects.filter(
case_states__case_process_id=task["processInstanceId"]
).first()
if case:
task["case"] = case
result.append(task)
except Case.DoesNotExist:
print(
f'Dropping task {task["processInstanceId"]} as the case cannot be found.'
)
class CaseViewSet(
CaseEventsMixin,
mixins.CreateModelMixin,
mixins.ListModelMixin,
mixins.RetrieveModelMixin,
viewsets.GenericViewSet,
):
permission_classes = [IsInAuthorizedRealm | TopKeyAuth]
serializer_class = CaseSerializer
queryset = Case.objects.all()
def get_serializer_class(self, *args, **kwargs):
if self.action in ["create", "update"]:
return CaseCreateUpdateSerializer
return self.serializer_class
@extend_schema(
parameters=[
date_parameter,
start_date_parameter,
open_cases_parameter,
team_parameter,
reason_parameter,
open_status_parameter,
no_pagination_parameter,
],
description="Case filter query parameters",
responses={200: CaseSerializer(many=True)},
)
def list(self, request):
date = request.GET.get(date_parameter.name, None)
start_date = request.GET.get(start_date_parameter.name, None)
open_cases = request.GET.get(open_cases_parameter.name, None)
team = request.GET.get(team_parameter.name, None)
reason = request.GET.get(reason_parameter.name, None)
open_status = request.GET.get(open_status_parameter.name, None)
no_pagination = request.GET.get(no_pagination_parameter.name, None)
queryset = self.get_queryset()
if date:
queryset = queryset.filter(start_date=date)
if start_date:
queryset = queryset.filter(start_date__gte=start_date)
if open_cases:
open_cases = open_cases == "true"
queryset = queryset.filter(end_date__isnull=open_cases)
if team:
queryset = queryset.filter(team=team)
if reason:
queryset = queryset.filter(reason=reason)
if open_status:
queryset = queryset.filter(
case_states__end_date__isnull=True,
case_states__status__name=open_status,
)
if no_pagination == "true":
serializer = CaseSerializer(queryset, many=True)
return Response(serializer.data)
paginator = PageNumberPagination()
context = paginator.paginate_queryset(queryset, request)
serializer = CaseSerializer(context, many=True)
return paginator.get_paginated_response(serializer.data)
@extend_schema(
parameters=[
postal_code_parameter,
street_number_parameter,
street_name_parameter,
suffix_parameter,
team_parameter,
],
description="Search query parameters",
responses={200: CaseSerializer(many=True)},
operation=None,
)
@action(detail=False, methods=["get"], url_path="search")
def search(self, request):
postal_code = request.GET.get(postal_code_parameter.name, None)
street_name = request.GET.get(street_name_parameter.name, None)
number = request.GET.get(street_number_parameter.name, None)
suffix = request.GET.get(suffix_parameter.name, None)
team = request.GET.get(team_parameter.name, None)
if postal_code is None and street_name is None:
return HttpResponseBadRequest(
"A postal_code or street_name queryparameter should be provided"
)
if postal_code is not None and number is None:
return HttpResponseBadRequest("number queryparameter is required")
if street_name is not None and number is None:
return HttpResponseBadRequest("number queryparameter is required")
address_queryset = search(
street_name=street_name,
postal_code=postal_code,
number=number,
suffix=suffix,
)
cases = Case.objects.none()
for address in address_queryset:
cases = cases | address.cases.all()
cases = cases.filter(end_date=None)
if team:
cases = cases.filter(team=team)
paginator = PageNumberPagination()
context = paginator.paginate_queryset(cases, request)
serializer = CaseSerializer(context, many=True)
return paginator.get_paginated_response(serializer.data)
@action(detail=False, methods=["post"], url_path="generate-mock")
def mock_cases(self, request):
try:
assert (settings.DEBUG or settings.ENVIRONMENT
== "acceptance"), "Incorrect enviroment"
mock()
except Exception as e:
return Response(data={"error": str(e)},
status=status.HTTP_400_BAD_REQUEST)
return Response(status=status.HTTP_200_OK)
@extend_schema(
description="Get Camunda tasks for this Case",
responses={status.HTTP_200_OK: CamundaTaskSerializer(many=True)},
)
@action(detail=True, methods=["get"], url_path="tasks")
def get_tasks(self, request, pk):
case = self.get_object()
camunda_tasks = []
for camunda_id in case.camunda_ids:
camunda_tasks.extend(
CamundaService().get_all_tasks_by_instance_id(camunda_id))
# Camunda tasks can be an empty list or boolean. TODO: This should just be one datatype
if camunda_tasks is False:
return Response(
"Camunda service is offline",
status=status.HTTP_503_SERVICE_UNAVAILABLE,
)
serializer = CamundaTaskSerializer(camunda_tasks, many=True)
return Response(serializer.data)
def create_summon_instance_in_camunda(sender, instance, created, **kwargs):
# CamundaService().send_message(
# "model_create_summon",
# json.dumps(
# {
# "names": {
# "value": ", ".join(
# [person.__str__() for person in instance.persons.all()]
# )
# },
# "type_aanschrijving": {
# "value": instance.type.camunda_option,
# },
# "sluitingsbesluit": {
# "value": instance.intention_closing_decision,
# },
# }
# ),
# )
if created and "test" not in sys.argv:
(camunda_id, _) = CamundaService().start_instance(
case_identification=instance.case.identification,
process="zaak_wonen_summon",
request_body=json.dumps(
{
"variables": {
"names": {
"value": ", ".join(
[person.__str__() for person in instance.persons.all()]
),
"type": "String",
},
"type_aanschrijving": {
"value": instance.type.camunda_option,
"type": "String",
},
"sluitingsbesluit": {
"value": False,
"type": "Boolean",
},
"case_identification": {
"value": instance.case.identification,
"type": "String",
},
"zaken_access_token": {
"value": settings.CAMUNDA_SECRET_KEY,
"type": "String",
},
"zaken_state_endpoint": {
"value": f'{settings.ZAKEN_CONTAINER_HOST}{reverse("camunda-workers-state")}',
"type": "String",
},
"zaken_end_state_endpoint": {
"value": f'{settings.ZAKEN_CONTAINER_HOST}{reverse("camunda-workers-end-state")}',
"type": "String",
},
"endpoint": {
"value": settings.ZAKEN_CONTAINER_HOST,
"type": "String",
},
}
}
),
)
case = instance.case
case.camunda_id = camunda_id
case.save()
def get_schedule_task(case):
task = CamundaService().get_task_by_task_name_id_and_camunda_id(
"task_create_schedule", case.camunda_id
)
return task
class CamundaWorkerViewSet(viewsets.ViewSet):
"""
This is a view which can be be request from the Camunda workflow.
"""
permission_classes = [IsInAuthorizedRealm | CamundaKeyAuth]
serializer_class = CamundaStateWorkerSerializer
@extend_schema(
description="A Camunda service task for setting state",
responses={200: None},
)
@action(
detail=False,
url_path="state",
methods=["post"],
serializer_class=CamundaStateWorkerSerializer,
)
def state(self, request):
logger.info("Starting Camunda service task for setting state")
logger.info(request.body)
serializer = CamundaStateWorkerSerializer(data=request.data)
if serializer.is_valid():
state = serializer.save()
logger.info("State set succesfully")
return Response(data=state.id, status=status.HTTP_201_CREATED)
else:
logger.error(f"State could not be set: {serializer.errors}")
logger.info(serializer.errors)
return Response(status=status.HTTP_400_BAD_REQUEST)
@extend_schema(
description="A Camunda service task for ending a state",
responses={200: None},
)
@action(
detail=False,
url_path="end-state",
methods=["post"],
serializer_class=CamundaEndStateWorkerSerializer,
)
def end_state(self, request):
logger.info("Starting Camunda service task for ending state")
serializer = CamundaEndStateWorkerSerializer(data=request.data)
if serializer.is_valid():
state = serializer.validated_data["state_identification"]
state.end_state()
state.save()
logger.info("State ended succesfully")
return Response(status=status.HTTP_200_OK)
else:
logger.error(f"State could not be ended: {serializer.errors}")
return Response(status=status.HTTP_400_BAD_REQUEST)
@extend_schema(
description=
"A Camunda service task for starting process based on message",
responses={200: None},
)
@action(
detail=False,
url_path="send-message-start-process",
methods=["post"],
serializer_class=CamundaMessagerSerializer,
)
def send_message(self, request):
logger.info("Sending message based on Camunda message end event")
serializer = CamundaMessagerSerializer(data=request.data)
if serializer.is_valid():
message_name = serializer.validated_data["message_name"]
case_identification = serializer.validated_data[
"case_identification"]
if serializer.validated_data["process_variables"]:
process_variables = serializer.validated_data[
"process_variables"]
else:
process_variables = {}
try:
case = Case.objects.get(id=case_identification)
except Case.DoesNotExist:
return Response(
data="Camunda process has not started. Case does not exist",
status=status.HTTP_500_INTERNAL_SERVER_ERROR,
)
case_process_instance = CaseProcessInstance.objects.create(
case=case)
case_process_id = case_process_instance.process_id.__str__()
raw_response = CamundaService().send_message(
message_name=message_name,
case_identification=case_identification,
case_process_id=case_process_id,
message_process_variables=process_variables,
)
if raw_response.ok:
response = raw_response.json()[0]
camunda_id = response["processInstance"]["id"]
case = Case.objects.get(id=case_identification)
case.add_camunda_id(camunda_id)
case_process_instance.camunda_process_id = camunda_id
case.save()
case_process_instance.save()
logger.info(f"Message send {message_name} ended succesfully")
return Response(status=status.HTTP_200_OK)
rendered_content = raw_response.content.decode("UTF-8")
logger.error(f"FAIL: Message send response:{rendered_content}")
return Response(status=status.HTTP_400_BAD_REQUEST)
def create_generic_completed_instance_in_camunda(sender, instance, created,
**kwargs):
if created:
CamundaService().complete_task(instance.camunda_task_id,
instance.variables)
serializer = self.serializer_class(data=request.data)
if serializer.is_valid():
data = serializer.validated_data
instance = data["camunda_process_id"]
try:
case = Case.objects.get(id=pk)
except Case.DoesNotExist:
return Response(
data="Camunda process has not started. Case does not exist",
status=status.HTTP_500_INTERNAL_SERVER_ERROR,
)
response = CamundaService().send_message(
message_name=instance.camunda_message_name,
case_identification=case.id)
try:
json_response = response.json()[0]
camunda_process_id = json_response["processInstance"]["id"]
except Exception:
return Response(
data=
f"Camunda process has not started. Json response not valid {str(response.content)}",
status=status.HTTP_500_INTERNAL_SERVER_ERROR,
)
case.add_camunda_id(camunda_process_id)
case.save()
