98 lines
2.7 KiB
Go
98 lines
2.7 KiB
Go
package object
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import (
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"context"
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objectV2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
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apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
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)
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// NodeState is storage node state processed by Object service.
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type NodeState interface {
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// IsMaintenance checks if node is under maintenance. Node MUST NOT serve
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// local object operations. Node MUST respond with apistatus.NodeUnderMaintenance
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// error if IsMaintenance returns true.
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IsMaintenance() bool
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}
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// Common is an Object API ServiceServer which encapsulates logic spread to all
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// object operations.
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//
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// If underlying NodeState.IsMaintenance returns true, all operations are
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// immediately failed with apistatus.NodeUnderMaintenance.
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type Common struct {
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state NodeState
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nextHandler ServiceServer
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}
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// Init initializes the Common instance.
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func (x *Common) Init(state NodeState, nextHandler ServiceServer) {
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x.state = state
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x.nextHandler = nextHandler
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}
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func (x *Common) Get(req *objectV2.GetRequest, stream GetObjectStream) error {
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if x.state.IsMaintenance() {
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return new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.Get(req, stream)
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}
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func (x *Common) Put() (PutObjectStream, error) {
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if x.state.IsMaintenance() {
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return nil, new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.Put()
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}
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func (x *Common) Head(ctx context.Context, req *objectV2.HeadRequest) (*objectV2.HeadResponse, error) {
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if x.state.IsMaintenance() {
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return nil, new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.Head(ctx, req)
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}
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func (x *Common) Search(req *objectV2.SearchRequest, stream SearchStream) error {
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if x.state.IsMaintenance() {
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return new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.Search(req, stream)
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}
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func (x *Common) Delete(ctx context.Context, req *objectV2.DeleteRequest) (*objectV2.DeleteResponse, error) {
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if x.state.IsMaintenance() {
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return nil, new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.Delete(ctx, req)
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}
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func (x *Common) GetRange(req *objectV2.GetRangeRequest, stream GetObjectRangeStream) error {
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if x.state.IsMaintenance() {
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return new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.GetRange(req, stream)
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}
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func (x *Common) GetRangeHash(ctx context.Context, req *objectV2.GetRangeHashRequest) (*objectV2.GetRangeHashResponse, error) {
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if x.state.IsMaintenance() {
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return nil, new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.GetRangeHash(ctx, req)
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}
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func (x *Common) PutSingle(ctx context.Context, req *objectV2.PutSingleRequest) (*objectV2.PutSingleResponse, error) {
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if x.state.IsMaintenance() {
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return nil, new(apistatus.NodeUnderMaintenance)
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}
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return x.nextHandler.PutSingle(ctx, req)
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}
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