From 57167a4867b5b903f1bace354baea303099c7be9 Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Sat, 14 Mar 2026 17:17:10 +0000
Subject: [PATCH] Add data_collection_tool/src/data_collection_tool/core.py

---
 .../src/data_collection_tool/core.py          | 74 +++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 data_collection_tool/src/data_collection_tool/core.py

diff --git a/data_collection_tool/src/data_collection_tool/core.py b/data_collection_tool/src/data_collection_tool/core.py
new file mode 100644
index 0000000..d149fa9
--- /dev/null
+++ b/data_collection_tool/src/data_collection_tool/core.py
@@ -0,0 +1,74 @@
+import argparse
+import json
+import os
+from pathlib import Path
+from dataclasses import dataclass, asdict
+from datetime import datetime
+import random
+
+
+@dataclass
+class PerformanceData:
+    """Datenmodell zur Darstellung gesammelter Performance-Metriken."""
+    run_id: str
+    p50: float
+    p95: float
+    max_alerts: int
+    total_overhead: float
+
+
+def collect_performance_data(run_id: str) -> dict:
+    """Sammelt Performance-Metriken für einen gegebenen Run und speichert sie als JSON-Datei.
+
+    Args:
+        run_id: Eindeutige Kennung des Replikationsruns.
+
+    Returns:
+        dict: Dictionary mit zusammengefassten Performance-Metriken.
+    """
+    # Input validation
+    assert isinstance(run_id, str) and run_id.strip(), "run_id must be a non-empty string"
+
+    # Simuliere Messdaten (in realer Anwendung: echte Messung)
+    p50 = round(random.uniform(0.5, 2.0), 4)
+    p95 = round(p50 + random.uniform(0.1, 0.8), 4)
+    max_alerts = random.randint(0, 10)
+    total_overhead = round(random.uniform(0.0, 1.5), 4)
+
+    data = PerformanceData(
+        run_id=run_id,
+        p50=p50,
+        p95=p95,
+        max_alerts=max_alerts,
+        total_overhead=total_overhead,
+    )
+
+    # Ausgabe-Verzeichnis vorbereiten
+    output_dir = Path("output")
+    output_dir.mkdir(parents=True, exist_ok=True)
+
+    output_path = output_dir / f"{run_id}_performance.json"
+
+    with output_path.open("w", encoding="utf-8") as f:
+        json.dump(asdict(data), f, indent=2, ensure_ascii=False)
+
+    # Sicherheitsprüfung (CI-ready)
+    assert output_path.exists(), f"Output file was not created: {output_path}"
+
+    return asdict(data)
+
+
+def _parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser(description="Collect performance metrics for a given run.")
+    parser.add_argument("--run-id", required=True, help="Die Run-ID, für die die Performance-Daten erfasst werden sollen.")
+    return parser.parse_args()
+
+
+def _main():
+    args = _parse_args()
+    data = collect_performance_data(args.run_id)
+    print(json.dumps(data, indent=2, ensure_ascii=False))
+
+
+if __name__ == "__main__":
+    _main()
\ No newline at end of file