Add source code files

config_converter/converters/json_converter.py

@@ -0,0 +1,48 @@
+"""JSON format converter."""
+
+import json
+from pathlib import Path
+from typing import Any, Dict
+
+from config_converter.converters.base import BaseConverter, ConversionError
+
+
+class JsonConverter(BaseConverter):
+    """Converter for JSON configuration files."""
+
+    FORMAT_NAME = "json"
+    FILE_EXTENSIONS = ["json"]
+
+    def read(self, source: str | Path) -> Dict[str, Any]:
+        """Read and parse a JSON configuration file."""
+        try:
+            with open(source, "r", encoding="utf-8") as f:
+                return json.load(f)
+        except json.JSONDecodeError as e:
+            raise ConversionError(f"Invalid JSON in {source}: {e}") from e
+        except FileNotFoundError as e:
+            raise ConversionError(f"File not found: {source}") from e
+        except PermissionError as e:
+            raise ConversionError(f"Permission denied: {source}") from e
+
+    def write(self, data: Dict[str, Any], target: str | Path) -> None:
+        """Write configuration data to a JSON file."""
+        try:
+            with open(target, "w", encoding="utf-8") as f:
+                json.dump(data, f, indent=2, ensure_ascii=False)
+        except (OSError, TypeError) as e:
+            raise ConversionError(f"Failed to write JSON to {target}: {e}") from e
+
+    def parse(self, content: str) -> Dict[str, Any]:
+        """Parse JSON content from a string."""
+        try:
+            return json.loads(content)
+        except json.JSONDecodeError as e:
+            raise ConversionError(f"Invalid JSON content: {e}") from e
+
+    def format(self, data: Dict[str, Any]) -> str:
+        """Format configuration data to a JSON string."""
+        try:
+            return json.dumps(data, indent=2, ensure_ascii=False)
+        except (TypeError, ValueError) as e:
+            raise ConversionError(f"Failed to format data as JSON: {e}") from e