51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
"""JSON format converter."""
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import json
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from pathlib import Path
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from typing import Any, Dict, Union
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from config_converter.converters.base import BaseConverter, ConversionError
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class JsonConverter(BaseConverter):
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"""Converter for JSON configuration files."""
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FORMAT_NAME = "json"
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FILE_EXTENSIONS = ["json"]
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def read(self, source: Union[str, Path]) -> Dict[str, Any]:
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"""Read and parse a JSON configuration file."""
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try:
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with open(source, "r", encoding="utf-8") as f:
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data = json.load(f)
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return data if data is not None else {}
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except json.JSONDecodeError as e:
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raise ConversionError(f"Invalid JSON in {source}: {e}") from e
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except FileNotFoundError as e:
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raise ConversionError(f"File not found: {source}") from e
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except PermissionError as e:
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raise ConversionError(f"Permission denied: {source}") from e
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def write(self, data: Dict[str, Any], target: Union[str, Path]) -> None:
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"""Write configuration data to a JSON file."""
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try:
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with open(target, "w", encoding="utf-8") as f:
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json.dump(data, f, indent=2, ensure_ascii=False)
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except (OSError, TypeError) as e:
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raise ConversionError(f"Failed to write JSON to {target}: {e}") from e
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def parse(self, content: str) -> Dict[str, Any]:
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"""Parse JSON content from a string."""
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try:
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data = json.loads(content)
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return data if data is not None else {}
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except json.JSONDecodeError as e:
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raise ConversionError(f"Invalid JSON content: {e}") from e
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def format(self, data: Dict[str, Any]) -> str:
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"""Format configuration data to a JSON string."""
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try:
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return json.dumps(data, indent=2, ensure_ascii=False)
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except (TypeError, ValueError) as e:
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raise ConversionError(f"Failed to format data as JSON: {e}") from e
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