[#60] morph/netmap: Implement Epoch method on Client

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-10-21 19:14:29 +03:00 committed by Alex Vanin
parent a8481223d6
commit 20fb8547b6
2 changed files with 67 additions and 1 deletions

View file

@ -36,7 +36,8 @@ type cfg struct {
netMapMethod, // get network map method name netMapMethod, // get network map method name
snapshotMethod, // get network map snapshot method name snapshotMethod, // get network map snapshot method name
updateStateMethod, // update state method name for invocation updateStateMethod, // update state method name for invocation
innerRingListMethod string // IR list method name for invocation innerRingListMethod, // IR list method name for invocation
epochMethod string // get epoch number method name
} }
const ( const (
@ -46,6 +47,7 @@ const (
defaultSnapshotMethod = "snapshot" // default get network map snapshot method name defaultSnapshotMethod = "snapshot" // default get network map snapshot method name
defaultUpdateStateMethod = "updateState" // default update state method name defaultUpdateStateMethod = "updateState" // default update state method name
defaultInnerRIngListMethod = "innerRingList" // default IR list method name defaultInnerRIngListMethod = "innerRingList" // default IR list method name
defaultEpochMethod = "epoch" // default get epoch number method name
) )
func defaultConfig() *cfg { func defaultConfig() *cfg {
@ -56,6 +58,7 @@ func defaultConfig() *cfg {
snapshotMethod: defaultSnapshotMethod, snapshotMethod: defaultSnapshotMethod,
updateStateMethod: defaultUpdateStateMethod, updateStateMethod: defaultUpdateStateMethod,
innerRingListMethod: defaultInnerRIngListMethod, innerRingListMethod: defaultInnerRIngListMethod,
epochMethod: defaultEpochMethod,
} }
} }
@ -160,3 +163,17 @@ func WithInnerRingListMethod(n string) Option {
} }
} }
} }
// WithEpochMethod returns a client constructor option that
// specifies the method name of epoch number receiving operation.
//
// Ignores empty value.
//
// If option not provided, "epoch" is used.
func WithEpochMethod(n string) Option {
return func(c *cfg) {
if n != "" {
c.epochMethod = n
}
}
}

View file

@ -0,0 +1,49 @@
package netmap
import (
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/pkg/errors"
)
// EpochArgs groups the arguments
// of get epoch number test invoke call.
type EpochArgs struct {
}
// EpochValues groups the stack parameters
// returned by get epoch number test invoke.
type EpochValues struct {
num int64
}
// Number return the number of NeoFS epoch.
func (e EpochValues) Number() int64 {
return e.num
}
// Epoch performs the test invoke of get epoch number
// method of NeoFS Netmap contract.
func (c *Client) Epoch(_ EpochArgs) (*EpochValues, error) {
items, err := c.client.TestInvoke(
c.epochMethod,
)
if err != nil {
return nil, errors.Wrapf(err,
"could not perform test invocation (%s)",
c.epochMethod)
}
if ln := len(items); ln != 1 {
return nil, errors.Errorf("unexpected stack item count (%s): %d",
c.epochMethod, ln)
}
num, err := client.IntFromStackItem(items[0])
if err != nil {
return nil, errors.Wrapf(err, "could not get number from stack item (%s)", c.epochMethod)
}
return &EpochValues{
num: num,
}, nil
}