s TdZddlmZddlmZddlmZddlZddlmZddlm Z d dZ y) z0Common utilities for using the persistent cache.)absolute_import)division)unicode_literalsN) resources) exceptionscfd}|S)aDecorator to cache the result of a function. The decorated function must return a resource. The returned function will take three arguments: cache: a Cache object. key: str, the key for the function call in the cache. args: tuple (optional), the arguments to pass to the original function. If not specified, key will be used. >>> @CacheResource('sums') ... def Add(value1, value2): ... print 'adding...' ... value = value1 + value2 ... return resources.REGISTRY.Parse(str(value), collection='...') >>> with cache_util.GetCache('resource://') as cache: ... print Add(cache, '1+4', (1, 4)) ... print Add(cache, '1+4', (1, 4)) adding... http://example.googleapis.com/v1/foos/5 http://example.googleapis.com/v1/foos/5 Args: table_prefix: str, a prefix for the names of the tables in the cache to use for these results timeout_sec: int, the time (in seconds) for which a table is valid Returns: function, a function that decorates with the appropriate behavior. cJtjdfd }|S)z'Wraps a function and caches its result.cpdj |}|j|d } |j}|dd}tjj |S#t j$rB||n|f}|}|j|jfg|j|cYSwxYw)Nz{}:{})columnstimeoutr) formatTableSelectrREGISTRYParseURLcache_exceptionsCacheTableExpiredAddRowsSelfLinkValidate) cachekeyargs table_nametableresulturlreffunc table_prefix timeout_secs 1lib/googlecloudsdk/command_lib/util/cache_util.py GetFromCachez4CacheResource..Wrapper..GetFromCache=s>>,4jkk*akEe 0Qil!!**3// / /'tcVDk  ()*  sA AB54B5)N) functoolswraps)r r$r!r"s` r#WrapperzCacheResource..Wrapper;s&__T 0 0 )r!r"r's`` r# CacheResourcer*s>& .r()i: ) __doc__ __future__rrrr%googlecloudsdk.corergooglecloudsdk.core.cacherrr*r)r(r#r/s! 7&')D2r(