Improve role cache efficiency for API key roles (#58156) #59397
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This PR ensure that same roles are cached only once even when they are from different API keys. API key role descriptors and limited role descriptors are now saved in Authentication#metadata as raw bytes instead of deserialised Map<String, Object>. Hashes of these bytes are used as keys for API key roles. Only when the required role is not found in the cache, they will be deserialised to build the RoleDescriptors. The deserialisation is directly from raw bytes to RoleDescriptors without going through the current detour of "bytes -> Map -> bytes -> RoleDescriptors".
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This PR ensure that same roles are cached only once even when they are from different API keys.
API key role descriptors and limited role descriptors are now saved in Authentication#metadata
as raw bytes instead of deserialised
Map<String, Object>.Hashes of these bytes are used as keys for API key roles. Only when the required role is not found
in the cache, they will be deserialised to build the RoleDescriptors. The deserialisation is directly
from raw bytes to RoleDescriptors without going through the current detour of
"bytes -> Map -> bytes -> RoleDescriptors".