forked from TrueCloudLab/frostfs-sdk-go
109 lines
2.2 KiB
Go
109 lines
2.2 KiB
Go
package subnet
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import (
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"fmt"
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"github.com/TrueCloudLab/frostfs-api-go/v2/refs"
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"github.com/TrueCloudLab/frostfs-api-go/v2/subnet"
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subnetid "github.com/TrueCloudLab/frostfs-sdk-go/subnet/id"
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"github.com/TrueCloudLab/frostfs-sdk-go/user"
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)
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// Info represents information about NeoFS subnet.
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//
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// Instances can be created using built-in var declaration.
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type Info struct {
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id subnetid.ID
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owner user.ID
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}
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// Marshal encodes Info into a binary format of the NeoFS API protocol
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// (Protocol Buffers with direct field order).
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//
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// See also Unmarshal.
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func (x Info) Marshal() []byte {
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var id refs.SubnetID
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x.id.WriteToV2(&id)
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var owner refs.OwnerID
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x.owner.WriteToV2(&owner)
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var m subnet.Info
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m.SetID(&id)
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m.SetOwner(&owner)
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return m.StableMarshal(nil)
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}
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// Unmarshal decodes binary Info calculated using Marshal. Returns an error
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// describing a format violation.
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func (x *Info) Unmarshal(data []byte) error {
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var m subnet.Info
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err := m.Unmarshal(data)
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if err != nil {
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return err
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}
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id := m.ID()
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if id != nil {
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err = x.id.ReadFromV2(*id)
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if err != nil {
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return fmt.Errorf("invalid ID: %w", err)
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}
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} else {
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subnetid.MakeZero(&x.id)
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}
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owner := m.Owner()
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if owner != nil {
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err = x.owner.ReadFromV2(*owner)
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if err != nil {
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return fmt.Errorf("invalid owner: %w", err)
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}
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} else {
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x.owner = user.ID{}
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}
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return nil
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}
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// SetID sets the identifier of the subnet that Info describes.
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//
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// See also ID.
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func (x *Info) SetID(id subnetid.ID) {
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x.id = id
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}
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// ID returns subnet identifier set using SetID.
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//
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// Zero Info refers to the zero subnet.
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func (x Info) ID() subnetid.ID {
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return x.id
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}
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// SetOwner sets identifier of the subnet owner.
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func (x *Info) SetOwner(id user.ID) {
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x.owner = id
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}
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// Owner returns subnet owner set using SetOwner.
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//
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// Zero Info has no owner which is incorrect according to the
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// NeoFS API protocol.
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func (x Info) Owner() user.ID {
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return x.owner
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}
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// AssertOwnership checks if the given info describes the subnet owned by the
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// given user.
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func AssertOwnership(info Info, id user.ID) bool {
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return id.Equals(info.Owner())
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}
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// AssertReference checks if the given info describes the subnet referenced by
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// the given id.
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func AssertReference(info Info, id subnetid.ID) bool {
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return id.Equals(info.ID())
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}
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