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validator_state_client.go
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/
validator_state_client.go
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// Copyright (C) 2019-2022, Ava Labs, Inc. All rights reserved.
// See the file LICENSE for licensing terms.
package gvalidators
import (
"context"
"google.golang.org/protobuf/types/known/emptypb"
"github.com/ava-labs/avalanchego/ids"
"github.com/ava-labs/avalanchego/snow/validators"
"github.com/ava-labs/avalanchego/utils/crypto/bls"
pb "github.com/ava-labs/avalanchego/proto/pb/validatorstate"
)
var _ validators.State = (*Client)(nil)
type Client struct {
client pb.ValidatorStateClient
}
func NewClient(client pb.ValidatorStateClient) *Client {
return &Client{client: client}
}
func (c *Client) GetMinimumHeight(ctx context.Context) (uint64, error) {
resp, err := c.client.GetMinimumHeight(ctx, &emptypb.Empty{})
if err != nil {
return 0, err
}
return resp.Height, nil
}
func (c *Client) GetCurrentHeight(ctx context.Context) (uint64, error) {
resp, err := c.client.GetCurrentHeight(ctx, &emptypb.Empty{})
if err != nil {
return 0, err
}
return resp.Height, nil
}
func (c *Client) GetValidatorSet(
ctx context.Context,
height uint64,
subnetID ids.ID,
) (map[ids.NodeID]*validators.GetValidatorOutput, error) {
resp, err := c.client.GetValidatorSet(ctx, &pb.GetValidatorSetRequest{
Height: height,
SubnetId: subnetID[:],
})
if err != nil {
return nil, err
}
vdrs := make(map[ids.NodeID]*validators.GetValidatorOutput, len(resp.Validators))
for _, validator := range resp.Validators {
nodeID, err := ids.ToNodeID(validator.NodeId)
if err != nil {
return nil, err
}
var publicKey *bls.PublicKey
if len(validator.PublicKey) > 0 {
publicKey, err = bls.PublicKeyFromBytes(validator.PublicKey)
if err != nil {
return nil, err
}
}
vdrs[nodeID] = &validators.GetValidatorOutput{
NodeID: nodeID,
PublicKey: publicKey,
Weight: validator.Weight,
}
}
return vdrs, nil
}