Add Inner Ring code

pkg/morph/client/netmap/wrapper/netmap.go

@@ -0,0 +1,60 @@
+package wrapper
+
+import (
+	"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
+	contract "github.com/nspcc-dev/neofs-node/pkg/morph/client/netmap"
+	"github.com/pkg/errors"
+)
+
+// NetMap represents the NeoFS network map.
+//
+// It is a type alias of
+// github.com/nspcc-dev/neofs-node/pkg/core/NetMap.
+type NetMap = netmap.NetMap
+
+// Info represents node information.
+//
+// It is a type alias of
+// github.com/nspcc-dev/neofs-node/pkg/core/netmap.Info.
+type Info = netmap.Info
+
+// GetNetMap receives information list about storage nodes
+// through the Netmap contract call, composes network map
+// from them and returns it.
+func (w *Wrapper) GetNetMap() (*NetMap, error) {
+	// prepare invocation arguments
+	args := contract.GetNetMapArgs{}
+
+	// invoke smart contract call
+	values, err := w.client.NetMap(args)
+	if err != nil {
+		return nil, errors.Wrap(err, "could not invoke smart contract")
+	}
+
+	// parse response and fill the network map
+	nm := netmap.New()
+
+	peerList := values.Peers()
+
+	for i := range peerList {
+		info := Info{}
+
+		info.SetPublicKey(peerList[i].PublicKey())
+		info.SetAddress(string(peerList[i].Address()))
+
+		binOpts := peerList[i].Options()
+		opts := make([]string, 0, len(binOpts))
+
+		for j := range binOpts {
+			opts = append(opts, string(binOpts[j]))
+		}
+
+		info.SetOptions(opts)
+
+		if err := nm.AddNode(info); err != nil {
+			return nil, errors.Wrapf(err, "could not add node #%d to network map", i)
+		}
+	}
+
+	return nm, nil
+}