1406d096a2
Storage node should not provide NeoFS Object API service when it is under maintenance. Declare `Common` service that unifies behavior of all object operations. The implementation pre-checks if node is under maintenance and returns `apistatus.NodeUnderMaintenance` if so. Use `Common` service as a first logical processor in object service pipeline. Signed-off-by: Leonard Lyubich <ctulhurider@gmail.com>
91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
package object
|
|
|
|
import (
|
|
"context"
|
|
|
|
objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
|
|
apistatus "github.com/nspcc-dev/neofs-sdk-go/client/status"
|
|
)
|
|
|
|
// NodeState is storage node state processed by Object service.
|
|
type NodeState interface {
|
|
// IsMaintenance checks if node is under maintenance. Node MUST NOT serve
|
|
// local object operations. Node MUST respond with apistatus.NodeUnderMaintenance
|
|
// error if IsMaintenance returns true.
|
|
IsMaintenance() bool
|
|
}
|
|
|
|
// Common is an Object API ServiceServer which encapsulates logic spread to all
|
|
// object operations.
|
|
//
|
|
// If underlying NodeState.IsMaintenance returns true, all operations are
|
|
// immediately failed with apistatus.NodeUnderMaintenance.
|
|
type Common struct {
|
|
state NodeState
|
|
|
|
nextHandler ServiceServer
|
|
}
|
|
|
|
// Init initializes the Common instance.
|
|
func (x *Common) Init(state NodeState, nextHandler ServiceServer) {
|
|
x.state = state
|
|
x.nextHandler = nextHandler
|
|
}
|
|
|
|
var errMaintenance apistatus.NodeUnderMaintenance
|
|
|
|
func (x *Common) Get(req *objectV2.GetRequest, stream GetObjectStream) error {
|
|
if x.state.IsMaintenance() {
|
|
return errMaintenance
|
|
}
|
|
|
|
return x.nextHandler.Get(req, stream)
|
|
}
|
|
|
|
func (x *Common) Put(ctx context.Context) (PutObjectStream, error) {
|
|
if x.state.IsMaintenance() {
|
|
return nil, errMaintenance
|
|
}
|
|
|
|
return x.nextHandler.Put(ctx)
|
|
}
|
|
|
|
func (x *Common) Head(ctx context.Context, req *objectV2.HeadRequest) (*objectV2.HeadResponse, error) {
|
|
if x.state.IsMaintenance() {
|
|
return nil, errMaintenance
|
|
}
|
|
|
|
return x.nextHandler.Head(ctx, req)
|
|
}
|
|
|
|
func (x *Common) Search(req *objectV2.SearchRequest, stream SearchStream) error {
|
|
if x.state.IsMaintenance() {
|
|
return errMaintenance
|
|
}
|
|
|
|
return x.nextHandler.Search(req, stream)
|
|
}
|
|
|
|
func (x *Common) Delete(ctx context.Context, req *objectV2.DeleteRequest) (*objectV2.DeleteResponse, error) {
|
|
if x.state.IsMaintenance() {
|
|
return nil, errMaintenance
|
|
}
|
|
|
|
return x.nextHandler.Delete(ctx, req)
|
|
}
|
|
|
|
func (x *Common) GetRange(req *objectV2.GetRangeRequest, stream GetObjectRangeStream) error {
|
|
if x.state.IsMaintenance() {
|
|
return errMaintenance
|
|
}
|
|
|
|
return x.nextHandler.GetRange(req, stream)
|
|
}
|
|
|
|
func (x *Common) GetRangeHash(ctx context.Context, req *objectV2.GetRangeHashRequest) (*objectV2.GetRangeHashResponse, error) {
|
|
if x.state.IsMaintenance() {
|
|
return nil, errMaintenance
|
|
}
|
|
|
|
return x.nextHandler.GetRangeHash(ctx, req)
|
|
}
|