32 lines
1.2 KiB
Python
32 lines
1.2 KiB
Python
# Copyright (c) 2025 Patrick Motsch
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"""
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System-component lifecycle-hook registry (Layer L0 — shared).
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Higher-layer system components (e.g. workflowAutomation) register their
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lifecycle hooks here at boot time via ``app.py`` (Composition Root, L7).
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Interface modules read the registry generically — no upward imports needed.
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Supported events: ``onBootstrap``, ``onMandateDelete``, ``onInstanceCreate``.
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This is the same inversion pattern used by
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``serviceAgent/externalToolRegistry.py`` for agent tools.
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"""
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import logging
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from typing import Any, Callable, Dict, List
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logger = logging.getLogger(__name__)
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_hooks: Dict[str, List[Callable[..., Any]]] = {}
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def registerLifecycleHook(eventName: str, handler: Callable[..., Any]) -> None:
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"""Register a lifecycle handler for *eventName*."""
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_hooks.setdefault(eventName, []).append(handler)
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logger.info("Registered system-component lifecycle hook: %s -> %s",
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eventName, getattr(handler, "__qualname__", repr(handler)))
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def getLifecycleHooks(eventName: str) -> List[Callable[..., Any]]:
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"""Return all registered handlers for *eventName* (may be empty)."""
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return list(_hooks.get(eventName, []))
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