Class: ProtectedBranches::CacheService
- Inherits:
-
BaseService
- Object
- BaseService
- BaseService
- ProtectedBranches::CacheService
- Defined in:
- app/services/protected_branches/cache_service.rb
Constant Summary collapse
- CACHE_ROOT_KEY =
'cache:gitlab:protected_branch'
- TTL_UNSET =
-1
- CACHE_EXPIRE_IN =
1.day
- CACHE_LIMIT =
1000
Instance Attribute Summary
Attributes inherited from BaseService
Attributes inherited from BaseService
#current_user, #params, #project
Instance Method Summary collapse
Methods inherited from BaseService
#after_execute, #initialize, #refresh_cache
Methods inherited from BaseService
Methods included from BaseServiceUtility
#deny_visibility_level, #event_service, #log_error, #log_info, #notification_service, #system_hook_service, #todo_service, #visibility_level
Methods included from Gitlab::Allowable
Constructor Details
This class inherits a constructor from ProtectedBranches::BaseService
Instance Method Details
#fetch(ref_name, dry_run: false, &block) ⇒ Object
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# File 'app/services/protected_branches/cache_service.rb', line 10 def fetch(ref_name, dry_run: false, &block) record = OpenSSL::Digest::SHA256.hexdigest(ref_name) with_redis do |redis| cached_result = redis.hget(redis_key, record) if cached_result.nil? metrics.increment_cache_miss else metrics.increment_cache_hit decoded_result = Gitlab::Redis::Boolean.decode(cached_result) end # If we're dry-running, don't break because we need to check against # the real value to ensure the cache is working properly. # If the result is nil we'll need to run the block, so don't break yet. break decoded_result unless dry_run || decoded_result.nil? calculated_value = metrics.observe_cache_generation(&block) check_and_log_discrepancy(decoded_result, calculated_value, ref_name) if dry_run redis.hset(redis_key, record, Gitlab::Redis::Boolean.encode(calculated_value)) # We don't want to extend cache expiration time if redis.ttl(redis_key) == TTL_UNSET redis.expire(redis_key, CACHE_EXPIRE_IN) end # If the cache record has too many elements, then something went wrong and # it's better to drop the cache key. if redis.hlen(redis_key) > CACHE_LIMIT redis.unlink(redis_key) end calculated_value end end |
#refresh ⇒ Object
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# File 'app/services/protected_branches/cache_service.rb', line 50 def refresh with_redis { |redis| redis.unlink(redis_key) } end |