frostfs-node/pkg/morph/client/netmap/config.go
Leonard Lyubich 90c38fc5e5 [] morph/client: Implement read config method
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-10-23 14:03:25 +03:00

61 lines
1.4 KiB
Go

package netmap
import (
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/pkg/errors"
)
// ConfigArgs groups the arguments
// of get config value test invoke call.
type ConfigArgs struct {
key []byte
}
// EpochValues groups the stack parameters
// returned by get epoch number test invoke.
type ConfigValues struct {
val interface{}
}
// SetKey sets binary key to configuration parameter.
func (c *ConfigArgs) SetKey(v []byte) {
c.key = v
}
// Value returns configuration value.
func (c ConfigValues) Value() interface{} {
return c.val
}
// Config performs the test invoke of get config value
// method of NeoFS Netmap contract.
func (c *Client) Config(args ConfigArgs, assert func(stackitem.Item) (interface{}, error)) (*ConfigValues, error) {
items, err := c.client.TestInvoke(
c.configMethod,
args.key,
)
if err != nil {
return nil, errors.Wrapf(err,
"could not perform test invocation (%s)",
c.configMethod)
}
if ln := len(items); ln != 1 {
return nil, errors.Errorf("unexpected stack item count (%s): %d",
c.configMethod, ln)
}
val, err := assert(items[0])
if err != nil {
return nil, errors.Wrap(err, "value type assertion failed")
}
return &ConfigValues{
val: val,
}, nil
}
func IntegerAssert(item stackitem.Item) (interface{}, error) {
return client.IntFromStackItem(item)
}