[#193] pkg/container: Wrap container structure with SDK functions

All setters and getters should work with SDK types.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/container/attribute.go

@@ -0,0 +1,56 @@
+package container
+
+import (
+	"github.com/nspcc-dev/neofs-api-go/v2/container"
+)
+
+type (
+	Attribute  container.Attribute
+	Attributes []*Attribute
+)
+
+func NewAttribute() *Attribute {
+	return NewAttributeFromV2(new(container.Attribute))
+}
+
+func (a *Attribute) SetKey(v string) {
+	(*container.Attribute)(a).SetKey(v)
+}
+
+func (a *Attribute) SetValue(v string) {
+	(*container.Attribute)(a).SetValue(v)
+}
+
+func (a *Attribute) Key() string {
+	return (*container.Attribute)(a).GetKey()
+}
+
+func (a *Attribute) Value() string {
+	return (*container.Attribute)(a).GetValue()
+}
+
+func NewAttributeFromV2(v *container.Attribute) *Attribute {
+	return (*Attribute)(v)
+}
+
+func (a *Attribute) ToV2() *container.Attribute {
+	return (*container.Attribute)(a)
+}
+
+func NewAttributesFromV2(v []*container.Attribute) Attributes {
+	attrs := make(Attributes, 0, len(v))
+	for i := range v {
+		attrs = append(attrs, NewAttributeFromV2(v[i]))
+	}
+
+	return attrs
+}
+
+func (a Attributes) ToV2() []*container.Attribute {
+	attrs := make([]*container.Attribute, 0, len(a))
+	for i := range a {
+		attrs = append(attrs, a[i].ToV2())
+	}
+
+	return attrs
+}

pkg/container/container.go

@@ -3,11 +3,14 @@ package container
 import (
 	"crypto/sha256"
 
+	"github.com/nspcc-dev/neofs-api-go/pkg"
+	"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
+	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
 	"github.com/nspcc-dev/neofs-api-go/v2/container"
 )
 
 type Container struct {
-	container.Container
+	v2 container.Container
 }
 
 func New(opts ...NewOption) *Container {
@@ -21,36 +24,27 @@ func New(opts ...NewOption) *Container {
 	cnr.SetBasicACL(cnrOptions.acl)
 
 	if cnrOptions.owner != nil {
-		cnr.SetOwnerID(cnrOptions.owner.ToV2())
+		cnr.SetOwnerID(cnrOptions.owner)
 	}
 
 	if cnrOptions.policy != nil {
-		cnr.SetPlacementPolicy(cnrOptions.policy.ToV2())
+		cnr.SetPlacementPolicy(cnrOptions.policy)
 	}
 
-	attributes := make([]*container.Attribute, len(cnrOptions.attributes))
-	for i := range cnrOptions.attributes {
-		attribute := new(container.Attribute)
-		attribute.SetKey(cnrOptions.attributes[i].key)
-		attribute.SetValue(cnrOptions.attributes[i].value)
-		attributes[i] = attribute
-	}
-	if len(attributes) > 0 {
-		cnr.SetAttributes(attributes)
-	}
+	cnr.SetAttributes(cnrOptions.attributes)
 
 	return cnr
 }
 
 func (c Container) ToV2() *container.Container {
-	return &c.Container
+	return &c.v2
 }
 
 func NewContainerFromV2(c *container.Container) *Container {
 	cnr := new(Container)
 
 	if c != nil {
-		cnr.Container = *c
+		cnr.v2 = *c
 	}
 
 	return cnr
@@ -69,3 +63,51 @@ func CalculateID(c *Container) *ID {
 
 	return id
 }
+
+func (c *Container) Version() *pkg.Version {
+	return pkg.NewVersionFromV2(c.v2.GetVersion())
+}
+
+func (c *Container) SetVersion(v *pkg.Version) {
+	c.v2.SetVersion(v.ToV2())
+}
+
+func (c *Container) OwnerID() *owner.ID {
+	return owner.NewIDFromV2(c.v2.GetOwnerID())
+}
+
+func (c *Container) SetOwnerID(v *owner.ID) {
+	c.v2.SetOwnerID(v.ToV2())
+}
+
+func (c *Container) Nonce() []byte {
+	return c.v2.GetNonce() // return uuid?
+}
+
+func (c *Container) SetNonce(v []byte) {
+	c.v2.SetNonce(v) // set uuid?
+}
+
+func (c *Container) BasicACL() uint32 {
+	return c.v2.GetBasicACL()
+}
+
+func (c *Container) SetBasicACL(v uint32) {
+	c.v2.SetBasicACL(v)
+}
+
+func (c *Container) Attributes() Attributes {
+	return NewAttributesFromV2(c.v2.GetAttributes())
+}
+
+func (c *Container) SetAttributes(v Attributes) {
+	c.v2.SetAttributes(v.ToV2())
+}
+
+func (c *Container) PlacementPolicy() *netmap.PlacementPolicy {
+	return netmap.NewPlacementPolicyFromV2(c.v2.GetPlacementPolicy())
+}
+
+func (c *Container) SetPlacementPolicy(v *netmap.PlacementPolicy) {
+	c.v2.SetPlacementPolicy(v.ToV2())
+}

pkg/container/opts.go

@@ -20,7 +20,7 @@ type (
 	containerOptions struct {
 		acl        uint32
 		policy     *netmap.PlacementPolicy
-		attributes []attribute
+		attributes Attributes
 		owner      *owner.ID
 		nonce      uuid.UUID
 	}
@@ -100,10 +100,10 @@ func WithPolicy(policy *netmap.PlacementPolicy) NewOption {
 
 func WithAttribute(key, value string) NewOption {
 	return newFuncContainerOption(func(option *containerOptions) {
-		attr := attribute{
-			key:   key,
-			value: value,
-		}
+		attr := NewAttribute()
+		attr.SetKey(key)
+		attr.SetValue(value)
+
 		option.attributes = append(option.attributes, attr)
 	})
 }