snapshot

package
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Published: Feb 10, 2022 License: Apache-2.0 Imports: 8 Imported by: 0

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Types

type FileRestore

type FileRestore struct {
	Options RestoreOptions
	// contains filtered or unexported fields
}

FileRestore reads records from a file

func (*FileRestore) Init

func (f *FileRestore) Init(opts ...RestoreOption) error

func (*FileRestore) Start

func (f *FileRestore) Start() (<-chan *store.Record, error)

Start starts reading records from a file. The returned channel is closed when complete

type FileSnapshot

type FileSnapshot struct {
	Options SnapshotOptions
	// contains filtered or unexported fields
}

FileSnapshot backs up incoming records to a File

func (*FileSnapshot) Init

func (f *FileSnapshot) Init(opts ...SnapshotOption) error

Init validates the options

func (*FileSnapshot) Start

func (f *FileSnapshot) Start() (chan<- *store.Record, error)

Start opens a channel which recieves *store.Record and writes them to storage

func (*FileSnapshot) Wait

func (f *FileSnapshot) Wait()

Wait waits for the snapshotter to commit the backups to persistent storage

type Restore

type Restore interface {
	// Init validates the RestoreOptions and returns an error if they are invalid.
	// Init must be called before a Restore is used
	Init(opts ...RestoreOption) error
	// Start opens a channel over which records from the snapshot are retrieved.
	// The channel will be closed when the entire snapshot has been read.
	Start() (<-chan *store.Record, error)
}

Restore emits records from a go-micro store snapshot

func NewFileRestore

func NewFileRestore(opts ...RestoreOption) Restore

type RestoreOption

type RestoreOption func(r *RestoreOptions)

RestoreOption is an individual option

func Source

func Source(source string) RestoreOption

Source is the source URL of a snapshot, e.g. file:///path/to/file

type RestoreOptions

type RestoreOptions struct {
	Source string
}

RestoreOptions configure a Restore

type Snapshot

type Snapshot interface {
	// Init validates the Snapshot options and returns an error if they are invalid.
	// Init must be called before the Snapshot is used
	Init(opts ...SnapshotOption) error
	// Start opens a channel that receives *store.Record, adding any incoming records to a backup
	// close() the channel to commit the results.
	Start() (chan<- *store.Record, error)
	// Wait waits for any operations to be committed to underlying storage
	Wait()
}

Snapshot creates snapshots of a go-micro store

func NewFileSnapshot

func NewFileSnapshot(opts ...SnapshotOption) Snapshot

NewFileSnapshot returns a FileSnapshot

type SnapshotOption

type SnapshotOption func(s *SnapshotOptions)

SnapshotOption is an individual option

func Destination

func Destination(dest string) SnapshotOption

Destination is the URL to snapshot to, e.g. file:///path/to/file

type SnapshotOptions

type SnapshotOptions struct {
	Destination string
}

SnapshotOptions configure a snapshotter

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