resolver

Documentation

Index

• Variables
• type Container
  • func NewContainer(ctx context.Context, endpoint string) (*Container, error)
  • func (r *Container) Resolve(ctx context.Context, name string) (cid.ID, error)
  • func (r *Container) UpdateResolvers(ctx context.Context, endpoint string) error
• type NNSResolver
  • func NewNNSResolver(reader *rpcNNS.ContractReader) *NNSResolver
  • func (r *NNSResolver) Resolve(_ context.Context, name string) (cid.ID, error)
• type NoOpResolver
  • func NewNoOpResolver() *NoOpResolver
  • func (r *NoOpResolver) Resolve(_ context.Context, _ string) (cid.ID, error)
• type Resolver
  • func NewResolver(ctx context.Context, endpoint string) (Resolver, error)

Variables

var (
	// ErrNotFound shows the container not found by name.
	ErrNotFound = errors.New("not found")
)

Types

type Container

type Container struct {
	// contains filtered or unexported fields
}

Container is a wrapper for the Resolver. It allows to update resolvers in runtime, without service restarting.

The Container should be used like regular Resolver.

func NewContainer

func NewContainer(ctx context.Context, endpoint string) (*Container, error)

NewContainer is a constructor for the Container.

func (*Container) Resolve

func (r *Container) Resolve(ctx context.Context, name string) (cid.ID, error)

Resolve looks up the container id by its name via NNS contract. The method calls inline resolver.

func (*Container) UpdateResolvers

func (r *Container) UpdateResolvers(ctx context.Context, endpoint string) error

UpdateResolvers allows to update resolver in runtime. Resolvers will be created from scratch.

type NNSResolver

type NNSResolver struct {
	// contains filtered or unexported fields
}

NNSResolver allows to resolve container id by its name.

func NewNNSResolver

func NewNNSResolver(reader *rpcNNS.ContractReader) *NNSResolver

NewNNSResolver is a constructor for the NNSResolver.

func (*NNSResolver) Resolve

func (r *NNSResolver) Resolve(_ context.Context, name string) (cid.ID, error)

Resolve looks up the container id by its name via NNS contract.

type NoOpResolver

type NoOpResolver struct {
}

NoOpResolver is a special resolver for situation when NNSResolver can't be created.

func NewNoOpResolver

func NewNoOpResolver() *NoOpResolver

NewNoOpResolver is a constructor for the NoOpResolver.

func (*NoOpResolver) Resolve

func (r *NoOpResolver) Resolve(_ context.Context, _ string) (cid.ID, error)

Resolve always returns ErrNotFound.

type Resolver

type Resolver interface {
	Resolve(ctx context.Context, containerName string) (cid.ID, error)
}

Resolver allows to map container ID by container name.

func NewResolver

func NewResolver(ctx context.Context, endpoint string) (Resolver, error)

NewResolver returns resolver depending on corresponding endpoint.

If endpoint is empty, NoOpResolver will be returned.