SAP HANA Performance MCP Server

MCP server for SAP HANA performance analysis: query plan capture,
PlanViz export, expensive statement monitoring, plan cache inspection,
table statistics, memory stats, and active session tracking.

src/hana_performance_mcp/formatting.py

@@ -0,0 +1,37 @@
+from __future__ import annotations
+
+
+def format_bytes(n: int | None) -> str:
+    if n is None or n < 0:
+        return "N/A"
+    if n < 1024:
+        return f"{n} B"
+    if n < 1024**2:
+        return f"{n / 1024:.1f} KB"
+    if n < 1024**3:
+        return f"{n / 1024 ** 2:.1f} MB"
+    return f"{n / 1024 ** 3:.2f} GB"
+
+
+def format_duration(microseconds: int | None) -> str:
+    if microseconds is None:
+        return "N/A"
+    if microseconds < 1000:
+        return f"{microseconds} us"
+    ms = microseconds / 1000
+    if ms < 1000:
+        return f"{ms:.1f} ms"
+    sec = ms / 1000
+    if sec < 60:
+        return f"{sec:.1f} s"
+    minutes = int(sec // 60)
+    remaining_sec = sec % 60
+    return f"{minutes}m {remaining_sec:.0f}s"
+
+
+def truncate(s: str | None, max_len: int = 200) -> str:
+    if s is None:
+        return ""
+    if len(s) <= max_len:
+        return s
+    return s[:max_len] + "..."