Golang PkgScanResp.Decode Examples

Example #1

File: table_test.go Project: tradia/gotable

func myScan(in proto.PkgScanReq, au Authorize, t *testing.T) proto.PkgScanResp {
	var pkg = make([]byte, in.Length())
	_, err := in.Encode(pkg)
	if err != nil {
		t.Fatalf("Encode failed: ", err)
	}

	pkg = testTbl.Scan(&PkgArgs{in.Cmd, in.DbId, in.Seq, pkg}, au)

	var out proto.PkgScanResp
	_, err = out.Decode(pkg)
	if err != nil {
		t.Fatalf("Decode failed: ", err)
	}

	if out.ErrCode != 0 {
		t.Fatalf("Failed with ErrCode %d", out.ErrCode)
	}
	if out.DbId != in.DbId || out.Seq != in.Seq {
		t.Fatalf("DbId/Seq mismatch")
	}

	return out
}

Example #2

File: context.go Project: tradia/gotable

// Get call reply. The real reply types are:
// Auth/Ping/(Z)Set/(Z)Del: nil;
// (Z)Get: GetReply;
// (Z)Incr: IncrReply;
// (Z)MGet: []GetReply;
// (Z)MSet: []SetReply;
// (Z)MDel: []DelReply;
// (Z)MIncr: []IncrReply;
// (Z)Scan: ScanReply;
// Dump: DumpReply;
func (call *Call) Reply() (interface{}, error) {
	if call.err != nil {
		return nil, call.err
	}

	if !call.ready {
		return nil, ErrCallNotReady
	}

	if proto.CmdAuth == call.cmd ||
		proto.CmdPing == call.cmd ||
		proto.CmdIncr == call.cmd ||
		proto.CmdDel == call.cmd ||
		proto.CmdSet == call.cmd ||
		proto.CmdGet == call.cmd {
		var p proto.PkgOneOp
		_, err := p.Decode(call.pkg)
		if err != nil {
			call.err = err
			return nil, call.err
		}
		if p.ErrCode < 0 {
			return nil, getErr(p.ErrCode)
		}
		switch call.cmd {
		case proto.CmdAuth:
			return nil, nil
		case proto.CmdPing:
			return nil, nil
		case proto.CmdIncr:
			return IncrReply{p.ErrCode, p.TableId, copyBytes(p.RowKey),
				copyBytes(p.ColKey), copyBytes(p.Value), p.Score}, nil
		case proto.CmdDel:
			return nil, nil
		case proto.CmdSet:
			return nil, nil
		case proto.CmdGet:
			return GetReply{p.ErrCode, p.TableId, copyBytes(p.RowKey),
				copyBytes(p.ColKey), copyBytes(p.Value), p.Score, p.Cas}, nil
		}
	}

	if proto.CmdMIncr == call.cmd ||
		proto.CmdMDel == call.cmd ||
		proto.CmdMSet == call.cmd ||
		proto.CmdMGet == call.cmd {
		var p proto.PkgMultiOp
		_, err := p.Decode(call.pkg)
		if err != nil {
			call.err = err
			return nil, call.err
		}

		if p.ErrCode < 0 {
			return nil, getErr(p.ErrCode)
		}

		switch call.cmd {
		case proto.CmdMIncr:
			var r = make([]IncrReply, len(p.Kvs))
			for i := 0; i < len(r); i++ {
				r[i] = IncrReply{p.Kvs[i].ErrCode, p.Kvs[i].TableId,
					copyBytes(p.Kvs[i].RowKey), copyBytes(p.Kvs[i].ColKey),
					copyBytes(p.Kvs[i].Value), p.Kvs[i].Score}
			}
			return r, nil
		case proto.CmdMDel:
			var r = make([]DelReply, len(p.Kvs))
			for i := 0; i < len(r); i++ {
				r[i] = DelReply{p.Kvs[i].ErrCode, p.Kvs[i].TableId,
					copyBytes(p.Kvs[i].RowKey), copyBytes(p.Kvs[i].ColKey)}
			}
			return r, nil
		case proto.CmdMSet:
			var r = make([]SetReply, len(p.Kvs))
			for i := 0; i < len(r); i++ {
				r[i] = SetReply{p.Kvs[i].ErrCode, p.Kvs[i].TableId,
					copyBytes(p.Kvs[i].RowKey), copyBytes(p.Kvs[i].ColKey)}
			}
			return r, nil
		case proto.CmdMGet:
			var r = make([]GetReply, len(p.Kvs))
			for i := 0; i < len(r); i++ {
				r[i] = GetReply{p.Kvs[i].ErrCode, p.Kvs[i].TableId,
					copyBytes(p.Kvs[i].RowKey), copyBytes(p.Kvs[i].ColKey),
					copyBytes(p.Kvs[i].Value), p.Kvs[i].Score, p.Kvs[i].Cas}
			}
			return r, nil
		}
	}

	switch call.cmd {
	case proto.CmdScan:
		var p proto.PkgScanResp
		_, err := p.Decode(call.pkg)
		if err != nil {
			call.err = err
			return nil, call.err
		}

		if p.ErrCode < 0 {
			return nil, getErr(p.ErrCode)
		}

		var r ScanReply
		r.ctx = call.ctx.(scanContext)
		r.TableId = r.ctx.tableId
		r.RowKey = r.ctx.rowKey
		r.End = (p.PkgFlag&proto.FlagScanEnd != 0)
		r.Kvs = make([]ScanKV, len(p.Kvs))
		for i := 0; i < len(p.Kvs); i++ {
			r.Kvs[i] = ScanKV{copyBytes(p.Kvs[i].ColKey),
				copyBytes(p.Kvs[i].Value), p.Kvs[i].Score}
		}
		return r, nil

	case proto.CmdDump:
		var p proto.PkgDumpResp
		_, err := p.Decode(call.pkg)
		if err != nil {
			call.err = err
			return nil, call.err
		}

		if p.ErrCode < 0 {
			return nil, getErr(p.ErrCode)
		}

		var r DumpReply
		r.ctx = call.ctx.(dumpContext)
		r.ctx.lastSlotId = p.LastSlotId
		r.ctx.slotStart = (p.PkgFlag&proto.FlagDumpSlotStart != 0)
		r.End = (p.PkgFlag&proto.FlagDumpEnd != 0)
		r.Kvs = make([]DumpKV, len(p.Kvs))
		for i := 0; i < len(p.Kvs); i++ {
			r.Kvs[i] = DumpKV{p.Kvs[i].TableId, p.Kvs[i].ColSpace,
				copyBytes(p.Kvs[i].RowKey), copyBytes(p.Kvs[i].ColKey),
				copyBytes(p.Kvs[i].Value), p.Kvs[i].Score}
		}
		return r, nil
	}

	switch call.cmd {
	case proto.CmdSlaveOf:
		return call.replyInnerCtrl(&ctrl.PkgSlaveOf{})
	case proto.CmdMigrate:
		return call.replyInnerCtrl(&ctrl.PkgMigrate{})
	case proto.CmdSlaveSt:
		return call.replyInnerCtrl(&ctrl.PkgSlaveStatus{})
	case proto.CmdDelSlot:
		return call.replyInnerCtrl(&ctrl.PkgDelSlot{})
	}

	return nil, ErrUnknownCmd
}