[#189] sdk/netmap: Implement NodeInfo type

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

pkg/netmap/node_info.go

@@ -29,6 +29,9 @@ type NodeState uint32
 // NodeAttribute represents v2 compatible attribute of the NeoFS Storage Node.
 type NodeAttribute netmap.Attribute
 
+// NodeInfo represents v2 compatible descriptor of the NeoFS node.
+type NodeInfo netmap.NodeInfo
+
 const (
 	_ NodeState = iota
 
@@ -200,3 +203,82 @@ func (a *NodeAttribute) SetParentKeys(keys ...string) {
 	(*netmap.Attribute)(a).
 		SetParents(keys)
 }
+
+// NewNodeInfo creates and returns new NodeInfo instance.
+func NewNodeInfo() *NodeInfo {
+	return NewNodeInfoFromV2(new(netmap.NodeInfo))
+}
+
+// NewNodeInfoFromV2 converts v2 NodeInfo to NodeInfo.
+func NewNodeInfoFromV2(i *netmap.NodeInfo) *NodeInfo {
+	return (*NodeInfo)(i)
+}
+
+// ToV2 converts NodeInfo to v2 NodeInfo.
+func (i *NodeInfo) ToV2() *netmap.NodeInfo {
+	return (*netmap.NodeInfo)(i)
+}
+
+// PublicKey returns public key of the node in a binary format.
+func (i *NodeInfo) PublicKey() []byte {
+	return (*netmap.NodeInfo)(i).
+		GetPublicKey()
+}
+
+// SetPublicKey sets public key of the node in a binary format.
+func (i *NodeInfo) SetPublicKey(key []byte) {
+	(*netmap.NodeInfo)(i).
+		SetPublicKey(key)
+}
+
+// Address returns network endpoint address of the node.
+func (i *NodeInfo) Address() string {
+	return (*netmap.NodeInfo)(i).
+		GetAddress()
+}
+
+// SetAddress sets network endpoint address of the node.
+func (i *NodeInfo) SetAddress(addr string) {
+	(*netmap.NodeInfo)(i).
+		SetAddress(addr)
+}
+
+// Attributes returns list of the node attributes.
+func (i *NodeInfo) Attributes() []*NodeAttribute {
+	as := (*netmap.NodeInfo)(i).
+		GetAttributes()
+
+	res := make([]*NodeAttribute, 0, len(as))
+
+	for i := range as {
+		res = append(res, NewNodeAttributeFromV2(as[i]))
+	}
+
+	return res
+}
+
+// SetAttributes sets list of the node attributes.
+func (i *NodeInfo) SetAttributes(as ...*NodeAttribute) {
+	asV2 := make([]*netmap.Attribute, 0, len(as))
+
+	for i := range as {
+		asV2 = append(asV2, as[i].ToV2())
+	}
+
+	(*netmap.NodeInfo)(i).
+		SetAttributes(asV2)
+}
+
+// State returns node state.
+func (i *NodeInfo) State() NodeState {
+	return NodeStateFromV2(
+		(*netmap.NodeInfo)(i).
+			GetState(),
+	)
+}
+
+// SetState sets node state.
+func (i *NodeInfo) SetState(s NodeState) {
+	(*netmap.NodeInfo)(i).
+		SetState(s.ToV2())
+}

pkg/netmap/node_info_test.go

@@ -80,3 +80,63 @@ func TestNodeAttribute_ParentKeys(t *testing.T) {
 
 	require.Equal(t, keys, a.ParentKeys())
 }
+
+func testNodeAttribute() *NodeAttribute {
+	a := new(NodeAttribute)
+	a.SetKey("key")
+	a.SetValue("value")
+	a.SetParentKeys("par1", "par2")
+
+	return a
+}
+
+func TestNodeInfoFromV2(t *testing.T) {
+	iV2 := new(netmap.NodeInfo)
+	iV2.SetPublicKey([]byte{1, 2, 3})
+	iV2.SetAddress("456")
+	iV2.SetState(netmap.Online)
+	iV2.SetAttributes([]*netmap.Attribute{
+		testNodeAttribute().ToV2(),
+		testNodeAttribute().ToV2(),
+	})
+
+	i := NewNodeInfoFromV2(iV2)
+
+	require.Equal(t, iV2, i.ToV2())
+}
+
+func TestNodeInfo_PublicKey(t *testing.T) {
+	i := new(NodeInfo)
+	key := []byte{1, 2, 3}
+
+	i.SetPublicKey(key)
+
+	require.Equal(t, key, i.PublicKey())
+}
+
+func TestNodeInfo_Address(t *testing.T) {
+	i := new(NodeInfo)
+	a := "127.0.0.1:8080"
+
+	i.SetAddress(a)
+
+	require.Equal(t, a, i.Address())
+}
+
+func TestNodeInfo_State(t *testing.T) {
+	i := new(NodeInfo)
+	s := NodeStateOnline
+
+	i.SetState(s)
+
+	require.Equal(t, s, i.State())
+}
+
+func TestNodeInfo_Attributes(t *testing.T) {
+	i := new(NodeInfo)
+	as := []*NodeAttribute{testNodeAttribute(), testNodeAttribute()}
+
+	i.SetAttributes(as...)
+
+	require.Equal(t, as, i.Attributes())
+}