package getsvc import ( "github.com/nspcc-dev/neofs-api-go/pkg/client" objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object" "github.com/nspcc-dev/neofs-node/pkg/core/netmap" "github.com/nspcc-dev/neofs-node/pkg/core/object" "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/engine" "github.com/nspcc-dev/neofs-node/pkg/services/object/util" "github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement" "github.com/nspcc-dev/neofs-node/pkg/util/logger" "go.uber.org/zap" ) // Service utility serving requests of Object.Get service. type Service struct { *cfg } // Option is a Service's constructor option. type Option func(*cfg) type getClient interface { getObject(*execCtx) (*objectSDK.Object, error) } type cfg struct { assembly bool log *logger.Logger localStorage interface { get(*execCtx) (*object.Object, error) } clientCache interface { get(string) (getClient, error) } traverserGenerator interface { GenerateTraverser(*objectSDK.Address, uint64) (*placement.Traverser, error) } currentEpochReceiver interface { currentEpoch() (uint64, error) } } func defaultCfg() *cfg { return &cfg{ assembly: true, log: zap.L(), localStorage: new(storageEngineWrapper), clientCache: new(clientCacheWrapper), } } // New creates, initializes and returns utility serving // Object.Get service requests. func New(opts ...Option) *Service { c := defaultCfg() for i := range opts { opts[i](c) } return &Service{ cfg: c, } } // WithLogger returns option to specify Get service's logger. func WithLogger(l *logger.Logger) Option { return func(c *cfg) { c.log = l.With(zap.String("component", "Object.Get service")) } } // WithoutAssembly returns option to disable object assembling. func WithoutAssembly() Option { return func(c *cfg) { c.assembly = false } } // WithLocalStorageEngine returns option to set local storage // instance. func WithLocalStorageEngine(e *engine.StorageEngine) Option { return func(c *cfg) { c.localStorage.(*storageEngineWrapper).engine = e } } type ClientConstructor interface { Get(string) (client.Client, error) } // WithClientConstructor returns option to set constructor of remote node clients. func WithClientConstructor(v ClientConstructor) Option { return func(c *cfg) { c.clientCache.(*clientCacheWrapper).cache = v } } // WithTraverserGenerator returns option to set generator of // placement traverser to get the objects from containers. func WithTraverserGenerator(t *util.TraverserGenerator) Option { return func(c *cfg) { c.traverserGenerator = t } } // WithNetMapSource returns option to set network // map storage to receive current network state. func WithNetMapSource(nmSrc netmap.Source) Option { return func(c *cfg) { c.currentEpochReceiver = &nmSrcWrapper{ nmSrc: nmSrc, } } }