Datavision / backend /core /cache.py
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release: clean production build for HuggingFace Space
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"""Core cache module - stub for deployment"""
class QueryCache:
"""Simple query cache that accepts various parameter names"""
def __init__(self, max_entries=1000, ttl_seconds=3600, default_ttl=3600, **kwargs):
self.cache = {}
self.max_entries = max_entries
self.ttl_seconds = ttl_seconds or default_ttl
# Accept any other kwargs for compatibility
for key, value in kwargs.items():
setattr(self, key, value)
def get(self, key, user_id=None):
"""Get value from cache"""
cache_key = f"{user_id}:{key}" if user_id else key
return self.cache.get(cache_key)
def set(self, query, response, route=None, sources=None, user_id=None, ttl=None):
"""Set value in cache with all parameters"""
cache_key = f"{user_id}:{query}" if user_id else query
# Store as object with attributes
class CacheEntry:
pass
entry = CacheEntry()
entry.response = response
entry.route = route
entry.sources = sources
self.cache[cache_key] = entry
def clear_all(self):
"""Clear entire cache"""
self.cache = {}
def invalidate(self, user_id=None):
"""Clear cache"""
if user_id:
# Clear user-specific cache
keys_to_remove = [k for k in self.cache.keys() if str(user_id) in str(k)]
for k in keys_to_remove:
del self.cache[k]
else:
self.cache = {}
def get_cache():
"""Get global cache instance"""
global _cache
if '_cache' not in globals():
_cache = QueryCache()
return _cache