frostfs-s3-gw/internal/frostfs/policy/cached_morph.go

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package policy
import (
"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/logs"
"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
"go.uber.org/zap"
)
type CachedMorph struct {
morph engine.MorphRuleChainStorage
cache *cache.MorphPolicyCache
log *zap.Logger
}
type CachedMorphConfig struct {
Morph engine.MorphRuleChainStorage
Cache *cache.MorphPolicyCache
Log *zap.Logger
}
var _ engine.MorphRuleChainStorage = (*CachedMorph)(nil)
func NewCachedMorph(config CachedMorphConfig) *CachedMorph {
return &CachedMorph{
morph: config.Morph,
cache: config.Cache,
log: config.Log,
}
}
func (c *CachedMorph) AddMorphRuleChain(name chain.Name, target engine.Target, policyChain *chain.Chain) error {
c.cache.Delete(cache.MorphPolicyCacheKey{Target: target, Name: name})
return c.morph.AddMorphRuleChain(name, target, policyChain)
}
func (c *CachedMorph) RemoveMorphRuleChain(name chain.Name, target engine.Target, chainID chain.ID) error {
c.cache.Delete(cache.MorphPolicyCacheKey{Target: target, Name: name})
return c.morph.RemoveMorphRuleChain(name, target, chainID)
}
func (c *CachedMorph) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
key := cache.MorphPolicyCacheKey{Target: target, Name: name}
list := c.cache.Get(key)
if list != nil {
return list, nil
}
list, err := c.morph.ListMorphRuleChains(name, target)
if err != nil {
return nil, err
}
if err = c.cache.Put(key, list); err != nil {
c.log.Warn(logs.CouldntCacheListPolicyChains)
}
return list, nil
}