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Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
SPDX-License-Identifier: MIT-0
"""
from __future__ import annotations
from typing import Any, Dict
import jsonpatch
from cfnlint.schema._getatts import AttributeDict, GetAtts
from cfnlint.schema.resolver import RefResolver
# Can't use a dataclass because its hard to parse in json
# with optional fields without addtional help
class Schema:
def __init__(self, schema: dict[str, Any], is_cached: bool = False) -> None:
self.is_cached: bool = is_cached
self._schema: dict[str, Any] = schema
self._type_name: str = schema["typeName"]
self.resolver: RefResolver = RefResolver.from_schema(schema)
self._getatts: GetAtts = GetAtts(self)
@property
def type_name(self) -> str:
"""Return the type name of the schema"""
return self._type_name
@property
def schema(self) -> Dict:
"""Return the JSON Schema version of the CFN Schema
Args:
Returns:
Dict: the JSON schema representation of the CFN schema
"""
return self._schema
def patch(self, patches: list[Dict]) -> None:
"""Patches the schema file
Args:
patches: A list of JSON Patches
Returns:
None: Returns when the patches have been applied
"""
jsonpatch.JsonPatch(patches).apply(self.schema, in_place=True)
@property
def get_atts(self) -> AttributeDict:
"""Get the valid GetAtts for this schema. Schemas are defined in property
readOnlyProperties and we need to build definitions of those properties
Args:
Returns:
dict[str, GetAtt]: Dict of keys with valid strings and the json schema
object for the property
"""
return self._getatts.attrs
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