storagepacker

Documentation

Index

• Constants
• type Bucket
  • func (*Bucket) Descriptor() ([]byte, []int)
  • func (m *Bucket) GetItemMap() map[string]*any.Any
  • func (m *Bucket) GetItems() []*Item
  • func (m *Bucket) GetKey() string
  • func (*Bucket) ProtoMessage()
  • func (m *Bucket) Reset()
  • func (m *Bucket) String() string
  • func (m *Bucket) XXX_DiscardUnknown()
  • func (m *Bucket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
  • func (m *Bucket) XXX_Merge(src proto.Message)
  • func (m *Bucket) XXX_Size() int
  • func (m *Bucket) XXX_Unmarshal(b []byte) error
• type Item
  • func (*Item) Descriptor() ([]byte, []int)
  • func (m *Item) GetID() string
  • func (m *Item) GetMessage() *any.Any
  • func (*Item) ProtoMessage()
  • func (m *Item) Reset()
  • func (m *Item) String() string
  • func (m *Item) XXX_DiscardUnknown()
  • func (m *Item) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)
  • func (m *Item) XXX_Merge(src proto.Message)
  • func (m *Item) XXX_Size() int
  • func (m *Item) XXX_Unmarshal(b []byte) error
• type StoragePacker
  • func NewStoragePacker(view logical.Storage, logger log.Logger, viewPrefix string) (*StoragePacker, error)
  • func (s *StoragePacker) BucketKey(itemID string) string
  • func (s *StoragePacker) DeleteItem(_ context.Context, itemID string) error
  • func (s *StoragePacker) DeleteMultipleItems(ctx context.Context, logger hclog.Logger, itemIDs []string) error
  • func (s *StoragePacker) GetBucket(key string) (*Bucket, error)
  • func (s *StoragePacker) GetItem(itemID string) (*Item, error)
  • func (s *StoragePacker) PutItem(_ context.Context, item *Item) error
  • func (s *StoragePacker) View() logical.Storage

Constants

const (

	// StoragePackerBucketsPrefix is the default storage key prefix under which
	// bucket data will be stored.
	StoragePackerBucketsPrefix = "packer/buckets/"
)

Types

type Bucket

type Bucket struct {
	// Key is the storage path where the bucket gets stored
	Key string `sentinel:"" protobuf:"bytes,1,opt,name=key,proto3" json:"key,omitempty"`
	// Items holds the items contained within this bucket. Used by v1.
	Items []*Item `sentinel:"" protobuf:"bytes,2,rep,name=items,proto3" json:"items,omitempty"`
	// ItemMap stores a mapping of item ID to message. Used by v2.
	ItemMap              map[string]*any.Any `` /* 182-byte string literal not displayed */
	XXX_NoUnkeyedLiteral struct{}            `json:"-"`
	XXX_unrecognized     []byte              `json:"-"`
	XXX_sizecache        int32               `json:"-"`
}

Bucket is a construct to hold multiple items within itself. This abstraction contains multiple buckets of the same kind within itself and shares amont them the items that get inserted. When the bucket as a whole gets too big to hold more items, the contained buckets gets pushed out only to become independent buckets. Hence, this can grow infinitely in terms of storage space for items that get inserted.

func (*Bucket) Descriptor

func (*Bucket) Descriptor() ([]byte, []int)

func (*Bucket) GetItemMap

func (m *Bucket) GetItemMap() map[string]*any.Any

func (*Bucket) GetItems

func (m *Bucket) GetItems() []*Item

func (*Bucket) GetKey

func (m *Bucket) GetKey() string

func (*Bucket) ProtoMessage

func (*Bucket) ProtoMessage()

func (*Bucket) Reset

func (m *Bucket) Reset()

func (*Bucket) String

func (m *Bucket) String() string

func (*Bucket) XXX_DiscardUnknown

func (m *Bucket) XXX_DiscardUnknown()

func (*Bucket) XXX_Marshal

func (m *Bucket) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Bucket) XXX_Merge

func (m *Bucket) XXX_Merge(src proto.Message)

func (*Bucket) XXX_Size

func (m *Bucket) XXX_Size() int

func (*Bucket) XXX_Unmarshal

func (m *Bucket) XXX_Unmarshal(b []byte) error

type Item

type Item struct {
	// ID must be provided by the caller; the same value, if used with GetItem,
	// can be used to fetch the item. However, when iterating through a bucket,
	// this ID will be an internal ID. In other words, outside of the use-case
	// described above, the caller *must not* rely on this value to be
	// consistent with what they passed in.
	ID string `sentinel:"" protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
	// message is the contents of the item
	Message              *any.Any `sentinel:"" protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

Item represents an entry that gets inserted into the storage packer

func (*Item) Descriptor

func (*Item) Descriptor() ([]byte, []int)

func (*Item) GetID

func (m *Item) GetID() string

func (*Item) GetMessage

func (m *Item) GetMessage() *any.Any

func (*Item) ProtoMessage

func (*Item) ProtoMessage()

func (*Item) Reset

func (m *Item) Reset()

func (*Item) String

func (m *Item) String() string

func (*Item) XXX_DiscardUnknown

func (m *Item) XXX_DiscardUnknown()

func (*Item) XXX_Marshal

func (m *Item) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Item) XXX_Merge

func (m *Item) XXX_Merge(src proto.Message)

func (*Item) XXX_Size

func (m *Item) XXX_Size() int

func (*Item) XXX_Unmarshal

func (m *Item) XXX_Unmarshal(b []byte) error

type StoragePacker

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

StoragePacker packs items into a specific number of buckets by hashing its identifier and indexing on it. Currently this supports only 256 bucket entries and hence relies on the first byte of the hash value for indexing.

func NewStoragePacker

func NewStoragePacker(view logical.Storage, logger log.Logger, viewPrefix string) (*StoragePacker, error)

NewStoragePacker creates a new storage packer for a given view

func (*StoragePacker) BucketKey

func (s *StoragePacker) BucketKey(itemID string) string

BucketKey returns the storage key of the bucket where the given item will be stored.

func (*StoragePacker) DeleteItem

func (s *StoragePacker) DeleteItem(_ context.Context, itemID string) error

DeleteItem removes the item from the respective bucket

func (*StoragePacker) DeleteMultipleItems

func (s *StoragePacker) DeleteMultipleItems(ctx context.Context, logger hclog.Logger, itemIDs []string) error

func (*StoragePacker) GetBucket

func (s *StoragePacker) GetBucket(key string) (*Bucket, error)

GetBucket returns a bucket for a given key

func (*StoragePacker) GetItem

func (s *StoragePacker) GetItem(itemID string) (*Item, error)

GetItem fetches the storage entry for a given key from its corresponding bucket.

func (*StoragePacker) PutItem

func (s *StoragePacker) PutItem(_ context.Context, item *Item) error

PutItem stores the given item in its respective bucket

func (*StoragePacker) View

func (s *StoragePacker) View() logical.Storage

View returns the storage view configured to be used by the packer