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⚡ Add class caching to DeferLoad #3361

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merged 2 commits into from
Dec 2, 2024
Merged

⚡ Add class caching to DeferLoad #3361

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7ae9138
:zap: Add class caching to DeferLoad
ff137 Nov 28, 2024
583553e
Merge branch 'main' into fix-3360
jamshale Dec 2, 2024
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13 changes: 8 additions & 5 deletions acapy_agent/utils/classloader.py
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Original file line number Diff line number Diff line change
Expand Up @@ -181,18 +181,21 @@ def scan_subpackages(cls, package: str) -> Sequence[str]:
class DeferLoad:
"""Helper to defer loading of a class definition."""

_class_cache = {} # Shared cache for resolved classes

def __init__(self, cls_path: str):
"""Initialize the `DeferLoad` instance with a qualified class path."""
self._cls_path = cls_path
self._inst = None

def __call__(self, *args, **kwargs):
"""Magic method to call the `DeferLoad` as a function."""
return (self.resolved)(*args, **kwargs)
return self.resolved(*args, **kwargs)

@property
def resolved(self):
"""Accessor for the resolved class instance."""
if not self._inst:
self._inst = ClassLoader.load_class(self._cls_path)
return self._inst
if self._cls_path not in DeferLoad._class_cache:
DeferLoad._class_cache[self._cls_path] = ClassLoader.load_class(
self._cls_path
)
return DeferLoad._class_cache[self._cls_path]
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