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1# This file is part of daf_butler. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (http://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This program is free software: you can redistribute it and/or modify 

10# it under the terms of the GNU General Public License as published by 

11# the Free Software Foundation, either version 3 of the License, or 

12# (at your option) any later version. 

13# 

14# This program is distributed in the hope that it will be useful, 

15# but WITHOUT ANY WARRANTY; without even the implied warranty of 

16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

17# GNU General Public License for more details. 

18# 

19# You should have received a copy of the GNU General Public License 

20# along with this program. If not, see <http://www.gnu.org/licenses/>. 

21 

22from __future__ import annotations 

23 

24__all__ = ("FormatterTest", "DoNothingFormatter") 

25 

26from typing import ( 

27 Any, 

28 Mapping, 

29 Optional, 

30) 

31 

32from ..core import Formatter 

33 

34 

35class DoNothingFormatter(Formatter): 

36 """A test formatter that does not need to format anything and has 

37 parameters.""" 

38 

39 def read(self, component: Optional[str] = None) -> Any: 

40 raise NotImplementedError("Type does not support reading") 

41 

42 def write(self, inMemoryDataset: Any) -> str: 

43 raise NotImplementedError("Type does not support writing") 

44 

45 

46class FormatterTest(Formatter): 

47 """A test formatter that does not need to format anything.""" 

48 

49 supportedWriteParameters = frozenset({"min", "max", "median", "comment", "extra", "recipe"}) 

50 

51 def read(self, component: Optional[str] = None) -> Any: 

52 raise NotImplementedError("Type does not support reading") 

53 

54 def write(self, inMemoryDataset: Any) -> str: 

55 raise NotImplementedError("Type does not support writing") 

56 

57 @staticmethod 

58 def validateWriteRecipes(recipes: Optional[Mapping[str, Any]]) -> Optional[Mapping[str, Any]]: 

59 if not recipes: 

60 return recipes 

61 for recipeName in recipes: 

62 if "mode" not in recipes[recipeName]: 

63 raise RuntimeError("'mode' is a required write recipe parameter") 

64 return recipes