forked from LeddaZ/frameworks_base
62 lines
1.7 KiB
Python
Executable File
62 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# Copyright (C) 2024 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""Build Fallback instance with validating JSON contents."""
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import dataclasses
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from custom_json import _load_json_with_comment
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from validators import check_str_or_none
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@dataclasses.dataclass
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class FallbackEntry:
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lang: str | None
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id: str | None
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_FALLBACK_KEYS = set(["lang", "id"])
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def _parse_entry(obj) -> FallbackEntry:
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"""Convert given dict object to FallbackEntry instance."""
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unknown_keys = obj.keys() - _FALLBACK_KEYS
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assert not unknown_keys, "Unknown keys found: %s" % unknown_keys
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entry = FallbackEntry(
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lang=check_str_or_none(obj, "lang"),
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id=check_str_or_none(obj, "id"),
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)
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assert entry.lang or entry.id, "lang or id must be specified."
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assert (
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not entry.lang or not entry.id
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), "lang and id must not be specified at the same time"
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return entry
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def parse_fallback(objs) -> [FallbackEntry]:
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assert isinstance(objs, list), "fallback must be list"
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assert objs, "at least one etnry must be specified"
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return [_parse_entry(obj) for obj in objs]
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def parse_fallback_from_json(json_str) -> [FallbackEntry]:
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"""For testing purposes."""
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return parse_fallback(_load_json_with_comment(json_str))
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