policy-engine/pkg/engine/inmemory/morph_storage.go
aarifullin 17453d3cda [#7] engine: Revise CachedChainStorage interface
* Nuke out CachedChainStorage interface
* Introduce LocalOverrideStorage interface to manage
  local overrides
* Introduce MorphRuleChainStorage interface to manage
  chains in the policy contract
* Extend Engine interface

Signed-off-by: Airat Arifullin <aarifullin@yadro.com>
2023-11-15 09:22:42 +00:00

52 lines
1.6 KiB
Go

package inmemory
import (
"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
)
type inmemoryMorphRuleChainStorage struct {
nameToNamespaceChains engine.LocalOverrideStorage
nameToContainerChains engine.LocalOverrideStorage
}
func NewInmemoryMorphRuleChainStorage() engine.MorphRuleChainStorage {
return &inmemoryMorphRuleChainStorage{
nameToNamespaceChains: NewInmemoryLocalStorage(),
nameToContainerChains: NewInmemoryLocalStorage(),
}
}
func (s *inmemoryMorphRuleChainStorage) AddMorphRuleChain(name chain.Name, target engine.Target, c *chain.Chain) (err error) {
switch target.Type {
case engine.Namespace:
_, err = s.nameToNamespaceChains.AddOverride(name, target.Name, c)
case engine.Container:
_, err = s.nameToContainerChains.AddOverride(name, target.Name, c)
default:
err = engine.ErrUnknownTarget
}
return
}
func (s *inmemoryMorphRuleChainStorage) RemoveMorphRuleChain(name chain.Name, target engine.Target, chainID chain.ID) error {
switch target.Type {
case engine.Namespace:
return s.nameToNamespaceChains.RemoveOverride(name, target.Name, chainID)
case engine.Container:
return s.nameToContainerChains.RemoveOverride(name, target.Name, chainID)
default:
return engine.ErrUnknownTarget
}
}
func (s *inmemoryMorphRuleChainStorage) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
switch target.Type {
case engine.Namespace:
return s.nameToNamespaceChains.ListOverrides(name, target.Name)
case engine.Container:
return s.nameToContainerChains.ListOverrides(name, target.Name)
default:
}
return nil, engine.ErrUnknownTarget
}