frostfs-node/pkg/morph/client/container/wrapper/wrapper.go

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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"
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"github.com/nspcc-dev/neofs-node/pkg/morph/client/container"
"github.com/nspcc-dev/neofs-node/pkg/morph/client/internal"
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)
// 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 {
internal.StaticClient
client *container.Client
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}
// Option allows to set an optional
// parameter of Wrapper.
type Option func(*opts)
type opts struct {
feePutNamedSet bool
feePutNamed fixedn.Fixed8
staticOpts []client.StaticClientOption
}
func defaultOpts() *opts {
return new(opts)
}
// Morph returns raw morph client.
func (w Wrapper) Morph() *client.Client {
return w.client.Morph()
}
// TryNotary returns option to enable
// notary invocation tries.
func TryNotary() Option {
return func(o *opts) {
o.staticOpts = append(o.staticOpts, 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.staticOpts = append(o.staticOpts, client.AsAlphabet())
}
}
// WithCustomFeeForNamedPut returns option to specify custom fee for each Put operation with named container.
func WithCustomFeeForNamedPut(fee fixedn.Fixed8) Option {
return func(o *opts) {
o.feePutNamed = fee
o.feePutNamedSet = true
}
}
// NewFromMorph returns the wrapper instance from the raw morph client.
//
// Specified fee is used for all operations by default. If WithCustomFeeForNamedPut is provided,
// the customized fee is used for Put operations with named containers.
func NewFromMorph(cli *client.Client, contract util.Uint160, fee fixedn.Fixed8, opts ...Option) (*Wrapper, error) {
o := defaultOpts()
for i := range opts {
opts[i](o)
}
// below is working but not the best solution to customize fee for PutNamed operation
// It is done like that because container package doesn't provide option to specify the fee.
// In the future, we will possibly get rid of the container package at all.
const methodNamePutNamed = "putNamed"
var (
staticOpts = o.staticOpts
cnrOpts = make([]container.Option, 0, 1)
)
if o.feePutNamedSet {
staticOpts = append(staticOpts, client.WithCustomFee(methodNamePutNamed, o.feePutNamed))
cnrOpts = append(cnrOpts, container.WithPutNamedMethod(methodNamePutNamed))
}
staticClient, err := client.NewStatic(cli, contract, fee, staticOpts...)
if err != nil {
return nil, fmt.Errorf("can't create container static client: %w", err)
}
enhancedContainerClient, err := container.New(staticClient, cnrOpts...)
if err != nil {
return nil, fmt.Errorf("can't create container morph client: %w", err)
}
return &Wrapper{
StaticClient: staticClient,
client: enhancedContainerClient,
}, nil
}