Ջg@!JddlZddlZddlmZddlmZdZdZGddeZ y)N) BaseCache)DynamoDbSerializer created_atresponsec eZdZdZeZ ddejede dejedejedejedejf fd Z d ejfd Z dd ed eje d ejfd Zd ed ejfdZd ed efdZ dd edejdeje dejed ejf dZdd edejdeje d ejfdZdd edejdeje d ejfdZd ed efdZd efdZxZS) DynamoDbCachea( Implementation of cachelib.BaseCache that uses an AWS DynamoDb table as the backend. Your server process will require dynamodb:GetItem and dynamodb:PutItem IAM permissions on the cache table. Limitations: DynamoDB table items are limited to 400 KB in size. Since this class stores cached items in a table, the max size of a cache entry will be slightly less than 400 KB, since the cache key and expiration time fields are also part of the item. :param table_name: The name of the DynamoDB table to use :param default_timeout: Set the timeout in seconds after which cache entries expire :param key_field: The name of the hash_key attribute in the DynamoDb table. This must be a string attribute. :param expiration_time_field: The name of the table attribute to store the expiration time in. This will be an int attribute. The timestamp will be stored as seconds past the epoch. If you configure this as the TTL field, then DynamoDB will automatically delete expired entries. :param key_prefix: A prefix that should be added to all keys. table_namedefault_timeout key_fieldexpiration_time_field key_prefixkwargsc t || ddl}||_||_||_|xsd|_|jd i||_ |jjj|_ |jj||_|j j#y#t$r}t d|d}~wwxYw#t$$r|jj'|ddg||ddgd } | j)|j*d i|} | j-|d |d  |jj||_|j j#YywxYw)Nrzno boto3 module foundS) AttributeName AttributeTypeHASH)rKeyTypePAY_PER_REQUEST)AttributeDefinitions TableName KeySchema BillingModeT)Enabledr)rTimeToLiveSpecification)dynamodb)super__init__boto3 ImportError RuntimeError _table_name _key_field_expiration_time_fieldr resource_dynamor conditionsAttr_attrTable_tableload Exception create_tablewait_until_existsclientupdate_time_to_live) selfr r r r r rr errtabledynamo __class__s D/var/www/html/venv/lib/python3.12/site-packages/cachelib/dynamodb.pyrzDynamoDbCache.__init__)sp ) A &#&;#$*%u~~;F; ^^..33  ,,,,Z8DK KK    A67S @ A LL--&/#F&%&/FC.. E  # # %!U\\77F  & &$#%:) ' ,,,,Z8DK KK   + s*B.3:C . C7 CC B"E0/E0returnctjjjtjjS)zrs*#3WIWrB