Coverage for /pythoncovmergedfiles/medio/medio/src/airflow/airflow/ti_deps/deps/valid_state_dep.py: 64%

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2# Licensed to the Apache Software Foundation (ASF) under one 

3# or more contributor license agreements. See the NOTICE file 

4# distributed with this work for additional information 

5# regarding copyright ownership. The ASF licenses this file 

6# to you under the Apache License, Version 2.0 (the 

7# "License"); you may not use this file except in compliance 

8# with the License. You may obtain a copy of the License at 

9# 

10# http://www.apache.org/licenses/LICENSE-2.0 

11# 

12# Unless required by applicable law or agreed to in writing, 

13# software distributed under the License is distributed on an 

14# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 

15# KIND, either express or implied. See the License for the 

16# specific language governing permissions and limitations 

17# under the License. 

18from __future__ import annotations 

19 

20from airflow.exceptions import AirflowException 

21from airflow.ti_deps.deps.base_ti_dep import BaseTIDep 

22from airflow.utils.session import provide_session 

23 

24 

25class ValidStateDep(BaseTIDep): 

26 """ 

27 Ensures that the task instance's state is in a given set of valid states. 

28 

29 :param valid_states: A list of valid states that a task instance can have to meet 

30 this dependency. 

31 :return: whether or not the task instance's state is valid 

32 """ 

33 

34 NAME = "Task Instance State" 

35 IGNORABLE = True 

36 

37 def __init__(self, valid_states): 

38 super().__init__() 

39 

40 if not valid_states: 

41 raise AirflowException("ValidStatesDep received an empty set of valid states.") 

42 self._valid_states = valid_states 

43 

44 def __eq__(self, other): 

45 """Check if two task instance dependencies are equal by comparing their types and valid states.""" 

46 return isinstance(self, type(other)) and self._valid_states == other._valid_states 

47 

48 def __hash__(self): 

49 """Compute the hash value based on the type of the task instance dependency and its valid states.""" 

50 return hash((type(self), tuple(self._valid_states))) 

51 

52 @provide_session 

53 def _get_dep_statuses(self, ti, session, dep_context): 

54 if dep_context.ignore_ti_state: 

55 yield self._passing_status(reason="Context specified that state should be ignored.") 

56 return 

57 

58 if ti.state in self._valid_states: 

59 yield self._passing_status(reason=f"Task state {ti.state} was valid.") 

60 return 

61 

62 yield self._failing_status(reason=f"Task is in the '{ti.state}' state.")