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Add cache on regex #26

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merged 1 commit into from
Aug 28, 2023
Merged

Add cache on regex #26

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9 changes: 8 additions & 1 deletion duetector/filters/pattern.py
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ class PatternFilter(Filter):
0,
],
}
_re_cache = {}

@property
def enable_customize_exclude(self) -> bool:
Expand All @@ -50,7 +51,13 @@ def re_exclude(self, field: Optional[str], re_list: Union[str, List[str]]) -> bo
return False
if isinstance(re_list, str):
re_list = [re_list]
return any(re.search(pattern, field) for pattern in re_list)

def _cached_search(pattern, field):
if pattern not in self._re_cache:
self._re_cache[pattern] = re.compile(pattern)
return self._re_cache[pattern].search(field)

return any(_cached_search(pattern, field) for pattern in re_list)

def filter(self, data: NamedTuple) -> Optional[NamedTuple]:
if getattr(data, "pid", None) == os.getpid():
Expand Down