531bf50845
## Description Closes: #10729 Includes: * table, auto-increment table, and singleton `Table` implementations * primary key, index and unique index `Index` implementations * store wrappers based on tm-db but that could be retargeted to the new ADR 040 db which separate index and commitment stores, with a debug wrapper * streaming JSON import and export * full logical decoding (and encoding) --- ### Author Checklist *All items are required. Please add a note to the item if the item is not applicable and please add links to any relevant follow up issues.* I have... - [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] added `!` to the type prefix if API or client breaking change - [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting)) - [x] provided a link to the relevant issue or specification - [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules) - [x] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing) - [ ] added a changelog entry to `CHANGELOG.md` - [x] included comments for [documenting Go code](https://blog.golang.org/godoc) - [x] updated the relevant documentation or specification - [x] reviewed "Files changed" and left comments if necessary - [ ] confirmed all CI checks have passed ### Reviewers Checklist *All items are required. Please add a note if the item is not applicable and please add your handle next to the items reviewed if you only reviewed selected items.* I have... - [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title - [ ] confirmed `!` in the type prefix if API or client breaking change - [ ] confirmed all author checklist items have been addressed - [ ] reviewed state machine logic - [ ] reviewed API design and naming - [ ] reviewed documentation is accurate - [ ] reviewed tests and test coverage - [ ] manually tested (if applicable)
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
package ormkv
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import (
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"bytes"
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"encoding/binary"
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"github.com/cosmos/cosmos-sdk/orm/types/ormerrors"
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"google.golang.org/protobuf/reflect/protoreflect"
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)
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// SeqCodec is the codec for auto-incrementing uint64 primary key sequences.
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type SeqCodec struct {
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messageType protoreflect.FullName
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prefix []byte
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}
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// NewSeqCodec creates a new SeqCodec.
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func NewSeqCodec(messageType protoreflect.MessageType, prefix []byte) *SeqCodec {
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return &SeqCodec{messageType: messageType.Descriptor().FullName(), prefix: prefix}
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}
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var _ EntryCodec = &SeqCodec{}
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func (s SeqCodec) DecodeEntry(k, v []byte) (Entry, error) {
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if !bytes.Equal(k, s.prefix) {
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return nil, ormerrors.UnexpectedDecodePrefix
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}
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x, err := s.DecodeValue(v)
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if err != nil {
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return nil, err
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}
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return &SeqEntry{
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TableName: s.messageType,
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Value: x,
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}, nil
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}
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func (s SeqCodec) EncodeEntry(entry Entry) (k, v []byte, err error) {
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seqEntry, ok := entry.(*SeqEntry)
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if !ok {
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return nil, nil, ormerrors.BadDecodeEntry
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}
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if seqEntry.TableName != s.messageType {
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return nil, nil, ormerrors.BadDecodeEntry
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}
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return s.prefix, s.EncodeValue(seqEntry.Value), nil
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}
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func (s SeqCodec) Prefix() []byte {
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return s.prefix
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}
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func (s SeqCodec) EncodeValue(seq uint64) (v []byte) {
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bz := make([]byte, binary.MaxVarintLen64)
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n := binary.PutUvarint(bz, seq)
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return bz[:n]
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}
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func (s SeqCodec) DecodeValue(v []byte) (uint64, error) {
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if len(v) == 0 {
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return 0, nil
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}
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return binary.ReadUvarint(bytes.NewReader(v))
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}
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