frostfs-node/cmd/neofs-node/reputation/local/remote.go

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package local
import (
"crypto/ecdsa"
"github.com/nspcc-dev/neofs-node/cmd/neofs-node/reputation/common"
internalclient "github.com/nspcc-dev/neofs-node/cmd/neofs-node/reputation/internal/client"
"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
reputationcommon "github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
apiClient "github.com/nspcc-dev/neofs-sdk-go/client"
reputationapi "github.com/nspcc-dev/neofs-sdk-go/reputation"
)
// RemoteProviderPrm groups the required parameters of the RemoteProvider's constructor.
//
// All values must comply with the requirements imposed on them.
// Passing incorrect parameter values will result in constructor
// failure (error or panic depending on the implementation).
type RemoteProviderPrm struct {
Key *ecdsa.PrivateKey
}
// NewRemoteProvider creates a new instance of the RemoteProvider.
//
// Panics if at least one value of the parameters is invalid.
//
// The created RemoteProvider does not require additional
// initialization and is completely ready for work.
func NewRemoteProvider(prm RemoteProviderPrm) *RemoteProvider {
switch {
case prm.Key == nil:
common.PanicOnPrmValue("NetMapSource", prm.Key)
}
return &RemoteProvider{
key: prm.Key,
}
}
// RemoteProvider is an implementation of the clientKeyRemoteProvider interface.
type RemoteProvider struct {
key *ecdsa.PrivateKey
}
func (rp RemoteProvider) WithClient(c apiClient.Client) reputationcommon.WriterProvider {
return &TrustWriterProvider{
client: c,
key: rp.key,
}
}
type TrustWriterProvider struct {
client apiClient.Client
key *ecdsa.PrivateKey
}
func (twp *TrustWriterProvider) InitWriter(ctx reputationcommon.Context) (reputationcommon.Writer, error) {
return &RemoteTrustWriter{
ctx: ctx,
client: twp.client,
key: twp.key,
}, nil
}
type RemoteTrustWriter struct {
ctx reputationcommon.Context
client apiClient.Client
key *ecdsa.PrivateKey
buf []*reputationapi.Trust
}
func (rtp *RemoteTrustWriter) Write(t reputation.Trust) error {
apiTrust := reputationapi.NewTrust()
apiPeer := reputationapi.NewPeerID()
apiPeer.SetPublicKey(t.Peer())
apiTrust.SetValue(t.Value().Float64())
apiTrust.SetPeer(apiPeer)
rtp.buf = append(rtp.buf, apiTrust)
return nil
}
func (rtp *RemoteTrustWriter) Close() error {
var prm internalclient.AnnounceLocalPrm
prm.SetContext(rtp.ctx)
prm.SetClient(rtp.client)
prm.SetPrivateKey(rtp.key)
prm.SetEpoch(rtp.ctx.Epoch())
prm.SetTrusts(rtp.buf)
_, err := internalclient.AnnounceLocal(prm)
return err
}