func EncodeStructContent(buf *bytes2.ChunkedWriter, val reflect.Value) {
// check the Marshaler interface on T
if marshaler, ok := val.Interface().(Marshaler); ok {
marshaler.MarshalBson(buf)
return
}
// check the Marshaler interface on *T
if val.CanAddr() {
if marshaler, ok := val.Addr().Interface().(Marshaler); ok {
marshaler.MarshalBson(buf)
return
}
}
lenWriter := NewLenWriter(buf)
t := val.Type()
for i := 0; i < t.NumField(); i++ {
key := t.Field(i).Name
// NOTE(szopa): Ignore private fields (copied from
// encoding/json). Yes, it feels like a hack.
if t.Field(i).PkgPath != "" {
continue
}
encodeField(buf, key, val.Field(i))
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodeString(buf *bytes2.ChunkedWriter, key string, val string) {
// Encode strings as binary; go strings are not necessarily unicode
EncodePrefix(buf, Binary, key)
putUint32(buf, uint32(len(val)))
buf.WriteByte(0)
buf.WriteString(val)
}
func (ps *PrivateStruct) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := NewLenWriter(buf)
EncodeUint64(buf, "Type", ps.veryPrivate)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodeBool(buf *bytes2.ChunkedWriter, key string, val bool) {
EncodePrefix(buf, Boolean, key)
if val {
buf.WriteByte(1)
} else {
buf.WriteByte(0)
}
}
func encodeFieldsBson(fields []Field, key string, buf *bytes2.ChunkedWriter) {
bson.EncodePrefix(buf, bson.Array, key)
lenWriter := bson.NewLenWriter(buf)
for i, v := range fields {
MarshalFieldBson(v, bson.Itoa(i), buf)
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (bdq *BoundQuery) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
bson.EncodeString(buf, "Sql", bdq.Sql)
EncodeBindVariablesBson(buf, "BindVariables", bdq.BindVariables)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func encodeRowsBson(rows [][]sqltypes.Value, key string, buf *bytes2.ChunkedWriter) {
bson.EncodePrefix(buf, bson.Array, key)
lenWriter := bson.NewLenWriter(buf)
for i, v := range rows {
encodeRowBson(v, bson.Itoa(i), buf)
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (kr *KeyRange) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
bson.EncodeString(buf, "Start", string(kr.Start))
bson.EncodeString(buf, "End", string(kr.End))
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (req *RequestBson) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
bson.EncodeString(buf, "ServiceMethod", req.ServiceMethod)
bson.EncodeInt64(buf, "Seq", int64(req.Seq))
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodeBindVariablesBson(buf *bytes2.ChunkedWriter, key string, bindVars map[string]interface{}) {
bson.EncodePrefix(buf, bson.Object, key)
lenWriter := bson.NewLenWriter(buf)
for k, v := range bindVars {
bson.EncodeField(buf, k, v)
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodeSlice(buf *bytes2.ChunkedWriter, key string, val reflect.Value) {
EncodePrefix(buf, Array, key)
lenWriter := NewLenWriter(buf)
for i := 0; i < val.Len(); i++ {
encodeField(buf, Itoa(i), val.Index(i))
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (session *Session) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
bson.EncodeInt64(buf, "TransactionId", session.TransactionId)
bson.EncodeInt64(buf, "ConnectionId", session.ConnectionId)
bson.EncodeInt64(buf, "SessionId", session.SessionId)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func MarshalFieldBson(field Field, key string, buf *bytes2.ChunkedWriter) {
bson.EncodePrefix(buf, bson.Object, key)
lenWriter := bson.NewLenWriter(buf)
bson.EncodeString(buf, "Name", field.Name)
bson.EncodeInt64(buf, "Type", field.Type)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodeResultsBson(results []eproto.QueryResult, key string, buf *bytes2.ChunkedWriter) {
bson.EncodePrefix(buf, bson.Array, key)
lenWriter := bson.NewLenWriter(buf)
for i, v := range results {
bson.EncodePrefix(buf, bson.Object, bson.Itoa(i))
v.MarshalBson(buf)
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodeQueriesBson(queries []BoundQuery, key string, buf *bytes2.ChunkedWriter) {
bson.EncodePrefix(buf, bson.Array, key)
lenWriter := bson.NewLenWriter(buf)
for i, v := range queries {
bson.EncodePrefix(buf, bson.Object, bson.Itoa(i))
v.MarshalBson(buf)
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (qr *QueryResult) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
encodeFieldsBson(qr.Fields, "Fields", buf)
bson.EncodeInt64(buf, "RowsAffected", int64(qr.RowsAffected))
bson.EncodeInt64(buf, "InsertId", int64(qr.InsertId))
encodeRowsBson(qr.Rows, "Rows", buf)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (ql *QueryList) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
EncodeQueriesBson(ql.Queries, "Queries", buf)
bson.EncodeInt64(buf, "TransactionId", ql.TransactionId)
bson.EncodeInt64(buf, "ConnectionId", ql.ConnectionId)
bson.EncodeInt64(buf, "SessionId", ql.SessionId)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (query *Query) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
bson.EncodeString(buf, "Sql", query.Sql)
EncodeBindVariablesBson(buf, "BindVariables", query.BindVariables)
bson.EncodeInt64(buf, "TransactionId", query.TransactionId)
bson.EncodeInt64(buf, "ConnectionId", query.ConnectionId)
bson.EncodeInt64(buf, "SessionId", query.SessionId)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func encodeRowBson(row []sqltypes.Value, key string, buf *bytes2.ChunkedWriter) {
bson.EncodePrefix(buf, bson.Array, key)
lenWriter := bson.NewLenWriter(buf)
for i, v := range row {
if v.IsNull() {
bson.EncodePrefix(buf, bson.Null, bson.Itoa(i))
} else {
bson.EncodeBinary(buf, bson.Itoa(i), v.Raw())
}
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodeStringArray(buf *bytes2.ChunkedWriter, name string, values []string) {
if values == nil {
EncodePrefix(buf, Null, name)
} else {
EncodePrefix(buf, Array, name)
lenWriter := NewLenWriter(buf)
for i, val := range values {
EncodeString(buf, Itoa(i), val)
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
}
// a map seems to lose the 'CanAddr' property. So if we want
// to use a custom marshaler with a struct pointer receiver, like:
// func (ps *PrivateStruct) MarshalBson(buf *bytes2.ChunkedWriter) {
// the map has to be using pointers, i.e:
// map[string]*PrivateStruct
// and not:
// map[string]PrivateStruct
// (see unit test)
func EncodeMapContent(buf *bytes2.ChunkedWriter, val reflect.Value) {
lenWriter := NewLenWriter(buf)
mt := val.Type()
if mt.Key() != reflect.TypeOf("") {
panic(NewBsonError("can't marshall maps with non-string key types"))
}
keys := val.MapKeys()
for _, k := range keys {
key := k.String()
encodeField(buf, key, val.MapIndex(k))
}
buf.WriteByte(0)
lenWriter.RecordLen()
}
func (sc *SimpleContainer) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := NewLenWriter(buf)
EncodeField(buf, "_Val_", sc._Val_)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func NewLenWriter(buf *bytes2.ChunkedWriter) LenWriter {
off := buf.Len()
b := buf.Reserve(_WORD32)
return LenWriter{buf, off, b}
}
func putUint64(buf *bytes2.ChunkedWriter, val uint64) {
Pack.PutUint64(buf.Reserve(_WORD64), val)
}
func putUint32(buf *bytes2.ChunkedWriter, val uint32) {
Pack.PutUint32(buf.Reserve(_WORD32), val)
}
func (qrl *QueryResultList) MarshalBson(buf *bytes2.ChunkedWriter) {
lenWriter := bson.NewLenWriter(buf)
EncodeResultsBson(qrl.List, "List", buf)
buf.WriteByte(0)
lenWriter.RecordLen()
}
func EncodePrefix(buf *bytes2.ChunkedWriter, etype byte, key string) {
b := buf.Reserve(len(key) + 2)
b[0] = etype
copy(b[1:], key)
b[len(b)-1] = 0
}
func EncodeBinary(buf *bytes2.ChunkedWriter, key string, val []byte) {
EncodePrefix(buf, Binary, key)
putUint32(buf, uint32(len(val)))
buf.WriteByte(0)
buf.Write(val)
}