Source Code for Module pype32.caching

 1  #!/usr/bin/env python 
 2  # -*- coding: utf-8 -*-  
 3   
 4  # Copyright (c) 2015, Sandor Nemes 
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30   
31  caches = {} 
32   
33 -class Cache(object): 
34   
35 -    def __init__(self, name): 
36          self.name = name 
37          self.cache = {} 
38   
39 -    def get(self, key): 
40          return self.cache.get(key) 
41   
42 -    def put(self, key, value): 
43          self.cache.update({ key: value }) 
44   
45 -def getCache(name): 
46      cache = caches.get(name) 
47      if cache is None: 
48          cache = Cache(name) 
49          caches[name] = cache 
50      return cache 
51   
52 -def cached(*ids): 
53      def decorator(func): 
54          def decorated(self, *args): 
55              funcname = "#".join([func.__name__] + [str(_) for _ in ids]) 
56              cache = getCache(funcname) 
57              key = hash(args) 
58              result = cache.get(key) 
59              if result is None: 
60                  result = func(self, *args) 
61                  cache.put(key, result) 
62              return result 
63          return decorated 
64      return decorator 
65