sec_interp.exporters.base_exporter module

Base exporter class definition.

class sec_interp.exporters.base_exporter.BaseExporter(settings: dict[str, Any])

Bases: ABC

Abstract base class for all exporters.

This class defines the interface that all concrete exporters must implement. It follows the Template Method pattern, providing common initialization and validation logic while delegating format-specific export to subclasses.

__init__(settings: dict[str, Any]) → None

Initialize the exporter with settings.

Parameters:

settings – Dictionary containing export settings such as: - width: Output width in pixels - height: Output height in pixels - dpi: Dots per inch for resolution - background_color: Background color (QColor) - legend_renderer: Optional renderer for legend overlay

abstractmethod export(output_path: Path, data: Any) → bool

Export data to file.

This method must be implemented by all concrete exporters.

Parameters:

• output_path – Destination file path

• data – Data to export (format depends on exporter type)

Returns:

True if export successful, False otherwise

Return type:

bool

get_setting(key: str, default: Any = None) → Any

Get a setting value with optional default.

Parameters:

• key – Setting key

• default – Default value if key not found

Returns:

Setting value or default

abstractmethod get_supported_extensions() → list[str]

Get list of supported file extensions.

Returns:

List of supported extensions (e.g., [‘.png’, ‘.jpg’])

validate_export_path(output_path: Path, base_dir: Path | None = None) → tuple[bool, str]

Validate export path for security.

Uses secure path validation to prevent path traversal attacks.

Parameters:

• output_path – Path to validate

• base_dir – Optional base directory to restrict exports to

Returns:

(is_valid, error_message)

Return type:

tuple

validate_path(path: Path) → bool

Validate that the output path has a supported extension.

Parameters:

path – Path to validate

Returns:

True if path has a supported extension, False otherwise