frostfs-node/pkg/morph/client/subnet/get.go
Stanislav Bogatyrev cb016d53a6 [#1] Fix comments and error messages
Signed-off-by: Stanislav Bogatyrev <s.bogatyrev@yadro.com>
2023-02-06 17:41:14 +03:00

55 lines
1.1 KiB
Go

package morphsubnet
import (
"errors"
"github.com/TrueCloudLab/frostfs-node/pkg/morph/client"
)
// GetPrm groups parameters of Get method of Subnet contract.
type GetPrm struct {
args [1]interface{}
}
// SetID sets identifier of the subnet to be read in a binary FrostFS API protocol format.
func (x *GetPrm) SetID(id []byte) {
x.args[0] = id
}
// GetRes groups the resulting values of Get method of Subnet contract.
type GetRes struct {
info []byte
}
// Info returns information about the subnet in a binary format of FrostFS API protocol.
func (x GetRes) Info() []byte {
return x.info
}
var errEmptyResponse = errors.New("empty response")
// Get reads the subnet through the call of the corresponding method of the Subnet contract.
func (x *Client) Get(prm GetPrm) (*GetRes, error) {
var prmGet client.TestInvokePrm
prmGet.SetMethod(getMethod)
prmGet.SetArgs(prm.args[:]...)
res, err := x.client.TestInvoke(prmGet)
if err != nil {
return nil, err
}
if len(res) == 0 {
return nil, errEmptyResponse
}
data, err := client.BytesFromStackItem(res[0])
if err != nil {
return nil, err
}
return &GetRes{
info: data,
}, nil
}