Add retry_mechanism/src/retry_mechanism/cli.py
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retry_mechanism/src/retry_mechanism/cli.py
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54
retry_mechanism/src/retry_mechanism/cli.py
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import argparse
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import json
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from pathlib import Path
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from typing import Any
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from retry_mechanism.core import retry_if_negative_dt
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def main() -> None:
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parser = argparse.ArgumentParser(
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description="Retry Mechanism CLI: prüft Δt und führt ggf. einen einmaligen Retry aus."
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)
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parser.add_argument(
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"--input",
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required=True,
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type=str,
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help="Pfad zur Eingabedatei mit Timing-Messwerten im JSON-Format.",
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)
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args = parser.parse_args()
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input_path = Path(args.input)
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if not input_path.exists() or not input_path.is_file():
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raise FileNotFoundError(f"Eingabedatei nicht gefunden: {input_path}")
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with input_path.open("r", encoding="utf-8") as f:
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try:
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data: Any = json.load(f)
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except json.JSONDecodeError as e:
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raise ValueError(f"Ungültiges JSON-Format in {input_path}: {e}") from e
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if not isinstance(data, dict) or "dt" not in data:
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raise ValueError("Eingabedatei muss ein JSON-Objekt mit Feld 'dt' enthalten.")
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dt_value = data["dt"]
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if not isinstance(dt_value, (float, int)):
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raise TypeError("'dt' muss eine Zahl sein (float oder int).")
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corrected_dt = float(retry_if_negative_dt(float(dt_value)))
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retry_taken = dt_value < 0.0
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retry_fixed = corrected_dt >= 0.0
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result = {
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"retry_taken": retry_taken,
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"retry_fixed": retry_fixed,
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"dt": corrected_dt,
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}
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json.dump(result, fp=None) # no-op to check syntax
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print(json.dumps(result, ensure_ascii=False))
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if __name__ == "__main__":
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main()
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