示例#1
0
文件: list.go 项目: cayleydb/dgraph
func addEdgeToPosting(b *flatbuffers.Builder,
	t x.DirectedEdge, op byte) flatbuffers.UOffsetT {

	var bo flatbuffers.UOffsetT
	if t.Value != nil {
		if t.ValueId != math.MaxUint64 {
			glog.Fatal("This should have already been set by the caller.")
		}
		bytes, err := json.Marshal(t.Value)
		if err != nil {
			glog.WithError(err).Fatal("Unable to marshal value")
			return 0
		}
		bo = b.CreateByteVector(bytes)
	}
	so := b.CreateString(t.Source) // Do this before posting start.

	types.PostingStart(b)
	if bo > 0 {
		types.PostingAddValue(b, bo)
	}
	types.PostingAddUid(b, t.ValueId)
	types.PostingAddSource(b, so)
	types.PostingAddTs(b, t.Timestamp.UnixNano())
	types.PostingAddOp(b, op)
	return types.PostingEnd(b)
}
示例#2
0
文件: list.go 项目: cayleydb/dgraph
func newPosting(t x.DirectedEdge, op byte) []byte {
	b := flatbuffers.NewBuilder(0)
	var bo flatbuffers.UOffsetT
	if t.Value != nil {
		if t.ValueId != math.MaxUint64 {
			glog.Fatal("This should have already been set by the caller.")
		}
		bytes, err := json.Marshal(t.Value)
		if err != nil {
			glog.WithError(err).Fatal("Unable to marshal value")
			return []byte{}
		}
		bo = b.CreateByteVector(bytes)
	}
	so := b.CreateString(t.Source)
	types.PostingStart(b)
	if bo > 0 {
		types.PostingAddValue(b, bo)
	}
	types.PostingAddUid(b, t.ValueId)
	types.PostingAddSource(b, so)
	types.PostingAddTs(b, t.Timestamp.UnixNano())
	types.PostingAddOp(b, op)
	vend := types.PostingEnd(b)
	b.Finish(vend)

	return b.Bytes[b.Head():]
}
示例#3
0
文件: list.go 项目: cayleydb/dgraph
func addPosting(b *flatbuffers.Builder, p types.Posting) flatbuffers.UOffsetT {
	so := b.CreateByteString(p.Source()) // Do this before posting start.
	var bo flatbuffers.UOffsetT
	if p.ValueLength() > 0 {
		bo = b.CreateByteVector(p.ValueBytes())
	}

	types.PostingStart(b)
	types.PostingAddUid(b, p.Uid())
	if bo > 0 {
		types.PostingAddValue(b, bo)
	}
	types.PostingAddSource(b, so)
	types.PostingAddTs(b, p.Ts())
	types.PostingAddOp(b, p.Op())
	return types.PostingEnd(b)
}
示例#4
0
文件: list.go 项目: cayleydb/dgraph
// package level init
func init() {
	{
		b := flatbuffers.NewBuilder(0)
		types.PostingListStart(b)
		of := types.PostingListEnd(b)
		b.Finish(of)
		empty = b.Bytes[b.Head():]
	}

	{
		b := flatbuffers.NewBuilder(0)
		types.PostingStart(b)
		types.PostingAddUid(b, 0)
		of := types.PostingEnd(b)
		b.Finish(of)
		emptyPosting = b.Bytes[b.Head():]
	}

	glog.Infof("Empty size: [%d] EmptyPosting size: [%d]",
		len(empty), len(emptyPosting))
}