Coverage for /pythoncovmergedfiles/medio/medio/src/airflow/airflow/serialization/serializers/iceberg.py: 29%

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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 typing import TYPE_CHECKING 

21 

22from airflow.utils.module_loading import qualname 

23 

24serializers = ["pyiceberg.table.Table"] 

25deserializers = serializers 

26stringifiers = serializers 

27 

28if TYPE_CHECKING: 

29 from airflow.serialization.serde import U 

30 

31__version__ = 1 

32 

33 

34def serialize(o: object) -> tuple[U, str, int, bool]: 

35 from pyiceberg.table import Table 

36 

37 if not isinstance(o, Table): 

38 return "", "", 0, False 

39 

40 from airflow.models.crypto import get_fernet 

41 

42 # we encrypt the catalog information here until we have 

43 # global catalog management in airflow and the properties 

44 # can have sensitive information 

45 fernet = get_fernet() 

46 properties = {} 

47 for k, v in o.catalog.properties.items(): 

48 properties[k] = fernet.encrypt(v.encode("utf-8")).decode("utf-8") 

49 

50 data = { 

51 "identifier": o.identifier, 

52 "catalog_properties": properties, 

53 } 

54 

55 return data, qualname(o), __version__, True 

56 

57 

58def deserialize(classname: str, version: int, data: dict): 

59 from pyiceberg.catalog import load_catalog 

60 from pyiceberg.table import Table 

61 

62 from airflow.models.crypto import get_fernet 

63 

64 if version > __version__: 

65 raise TypeError("serialized version is newer than class version") 

66 

67 if classname == qualname(Table): 

68 fernet = get_fernet() 

69 properties = {} 

70 for k, v in data["catalog_properties"].items(): 

71 properties[k] = fernet.decrypt(v.encode("utf-8")).decode("utf-8") 

72 

73 catalog = load_catalog(data["identifier"][0], **properties) 

74 return catalog.load_table((data["identifier"][1], data["identifier"][2])) 

75 

76 raise TypeError(f"do not know how to deserialize {classname}")