Add 3_cost_scaling_analysis/src/cost_scaling_analysis/cli.py
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3_cost_scaling_analysis/src/cost_scaling_analysis/cli.py
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3_cost_scaling_analysis/src/cost_scaling_analysis/cli.py
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import argparse
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import json
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import os
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from pathlib import Path
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from typing import Any, Dict
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from cost_scaling_analysis.core import analyze_cost_scalability
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def _validate_input_path(path: str) -> Path:
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file_path = Path(path)
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if not file_path.exists() or not file_path.is_file():
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raise FileNotFoundError(f"Eingabedatei nicht gefunden: {path}")
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if file_path.suffix.lower() != '.json':
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raise ValueError("Eingabedatei muss im JSON-Format vorliegen.")
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return file_path
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def _validate_output_path(path: str) -> Path:
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out_path = Path(path)
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out_path.parent.mkdir(parents=True, exist_ok=True)
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if out_path.suffix.lower() != '.json':
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raise ValueError("Ausgabedatei muss im JSON-Format gespeichert werden.")
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return out_path
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def _load_worker_config(file_path: Path) -> Dict[str, Any]:
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with file_path.open('r', encoding='utf-8') as f:
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try:
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data = json.load(f)
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except json.JSONDecodeError as e:
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raise ValueError(f"Ungültiges JSON in Eingabedatei: {e}") from e
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if 'worker_count' not in data or not isinstance(data['worker_count'], int):
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raise ValueError("Feld 'worker_count' fehlt oder ist kein Integer.")
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return data
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def _save_metrics(output_path: Path, metrics: Dict[str, Any]) -> None:
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with output_path.open('w', encoding='utf-8') as f:
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json.dump(metrics, f, indent=2, ensure_ascii=False)
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def main() -> None:
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parser = argparse.ArgumentParser(
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description="Analysiert die Kosten-Skalierung basierend auf einer Worker-Konfigurationsdatei."
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)
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parser.add_argument(
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'--input', required=True, help='Pfad zur JSON-Eingabedatei mit Worker-Konfigurationsdaten.'
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)
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parser.add_argument(
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'--output', required=True, help='Pfad zur Ausgabedatei für berechnete Kostenmetriken.'
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)
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args = parser.parse_args()
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input_path = _validate_input_path(args.input)
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output_path = _validate_output_path(args.output)
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config = _load_worker_config(input_path)
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worker_count = config['worker_count']
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total_cost = analyze_cost_scalability(worker_count)
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# Beispielhafte Kostenstruktur erstellen
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metrics = {
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'worker_count': worker_count,
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'cost_per_worker': round(total_cost / worker_count, 3) if worker_count > 0 else 0.0,
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'total_cost': round(total_cost, 3),
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}
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_save_metrics(output_path, metrics)
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print(f"Kostenmetriken erfolgreich berechnet und gespeichert unter: {output_path}")
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if __name__ == '__main__':
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main()
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