[checkmk-commits] Added get_stats() method to perform some basic cache usage tests

Module: check_mk Branch: master Commit: c0f9e48505f3a9730f74aab08d9673c297f26205 URL: http://git.mathias-kettner.de/git/?p=check_mk.git;a=commit;h=c0f9e48505f3a9… Author: Lars Michelsen <lm(a)mathias-kettner.de> Date: Thu May 18 12:05:55 2017 +0200 Added get_stats() method to perform some basic cache usage tests Change-Id: Ia584240e2f4a8abe7e780d6462aab45ec7233c11 --- cmk_base/caching.py | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff --git a/cmk_base/caching.py b/cmk_base/caching.py index de679e0..0b95948 100644 --- a/cmk_base/caching.py +++ b/cmk_base/caching.py @@ -83,7 +83,35 @@ class Cache(object): # Just a small wrapper round a dict to get some caching specific functionality # for analysis etc. class DictCache(dict, Cache): - pass + def __init__(self, *args, **kwargs): + super(Cache, self).__init__(*args, **kwargs) + self._num_hits = 0 + self._num_misses = 0 + self._num_sets = 0 + + + def __getitem__(self, y): + try: + result = super(DictCache, self).__getitem__( y) + self._num_hits += 1 + return result + except KeyError: + self._num_misses += 1 + raise + + + def __setitem__(self, i, y): + self._num_sets += 1 + super(DictCache, self).__setitem__(i, y) + + + def get_stats(self): + return { + "sets" : self._num_sets, + "hits" : self._num_hits, + "misses" : self._num_misses, + "items" : len(self), + } class SetCache(set, Cache):