frostfs-node/pkg/morph/client/netmap/wrapper/wrapper.go
Pavel Karpy 425c02b0ec [#801] morph/netmap: Add wrapper options
Add constructor options on wrapper level
of `netmap` contract.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-09-09 14:07:57 +03:00

73 lines
1.8 KiB
Go

package wrapper
import (
"fmt"
"github.com/nspcc-dev/neo-go/pkg/encoding/fixedn"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-node/pkg/morph/client/netmap"
)
// Wrapper is a wrapper over netmap contract
// client which implements:
// * network map storage;
// * tool for peer state updating.
//
// Working wrapper must be created via constructor New.
// Using the Wrapper that has been created with new(Wrapper)
// expression (or just declaring a Wrapper variable) is unsafe
// and can lead to panic.
type Wrapper struct {
client *netmap.Client
}
// Option allows to set an optional
// parameter of Wrapper.
type Option func(*opts)
type opts []client.StaticClientOption
func defaultOpts() *opts {
return new(opts)
}
// NewFromMorph returns the wrapper instance from the raw morph client.
func NewFromMorph(cli *client.Client, contract util.Uint160, fee fixedn.Fixed8, opts ...Option) (*Wrapper, error) {
o := defaultOpts()
for i := range opts {
opts[i](o)
}
staticClient, err := client.NewStatic(cli, contract, fee, ([]client.StaticClientOption)(*o)...)
if err != nil {
return nil, fmt.Errorf("can't create netmap static client: %w", err)
}
enhancedNetmapClient, err := netmap.New(staticClient)
if err != nil {
return nil, fmt.Errorf("can't create netmap morph client: %w", err)
}
return &Wrapper{client: enhancedNetmapClient}, nil
}
// TryNotary returns option to enable
// notary invocation tries.
func TryNotary() Option {
return func(o *opts) {
*o = append(*o, client.TryNotary())
}
}
// AsAlphabet returns option to sign main TX
// of notary requests with client's private
// key.
//
// Considered to be used by IR nodes only.
func AsAlphabet() Option {
return func(o *opts) {
*o = append(*o, client.AsAlphabet())
}
}