frostfs-node/pkg/morph/client/container/wrapper/wrapper.go
Leonard Lyubich 9f122f279a [#496] morph/container: Construct client wrapper in notary mode
Some of the client wrapper's methods should produce notary contract's
invocations. In previous implementation all wrappers provided separate
methods to do it. Since notary and non-notary invocation scenarios have very
different goals, it makes sense to separate the scenarios of using the
client wrapper  at the stage of its creation.

Define `Option` constructor for container client wrapper. Add `TryNotary`
option which enables tries of the notary invocations on underlying static
client. Mark all notary-dedicated methods as deprecated.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2021-05-25 16:35:52 +03:00

61 lines
1.6 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/container"
)
// Wrapper is a wrapper over container contract
// client which implements container storage and
// eACL storage methods.
//
// 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 *container.Client
}
// Option allows to set an optional
// parameter of ClientWrapper.
type Option func(*opts)
type opts []client.StaticClientOption
func defaultOpts() *opts {
return new(opts)
}
// TryNotaryInvoke returns option to enable
// notary invocation tries.
func TryNotary() Option {
return func(o *opts) {
*o = append(*o, client.TryNotary())
}
}
// 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 container static client: %w", err)
}
enhancedContainerClient, err := container.New(staticClient)
if err != nil {
return nil, fmt.Errorf("can't create container morph client: %w", err)
}
return &Wrapper{client: enhancedContainerClient}, nil
}