// Parses the given byte buffer and populate the result object.
// Returns the number of bytes that were parsed from the given buffer.
func (cmd *batchCommandGet) parseRecord(key *Key, opCount int, generation, expiration uint32) (*Record, error) {
bins := make(map[string]interface{}, opCount)
for i := 0; i < opCount; i++ {
if err := cmd.readBytes(8); err != nil {
return nil, err
}
opSize := int(Buffer.BytesToUint32(cmd.dataBuffer, 0))
particleType := int(cmd.dataBuffer[5])
nameSize := int(cmd.dataBuffer[7])
if err := cmd.readBytes(nameSize); err != nil {
return nil, err
}
name := string(cmd.dataBuffer[:nameSize])
particleBytesSize := int(opSize - (4 + nameSize))
if err := cmd.readBytes(particleBytesSize); err != nil {
return nil, err
}
value, err := bytesToParticle(particleType, cmd.dataBuffer, 0, particleBytesSize)
if err != nil {
return nil, err
}
bins[name] = value
}
return newRecord(cmd.node, key, bins, generation, expiration), nil
}
func (cmd *baseMultiCommand) parseKey(fieldCount int) (*Key, error) {
var digest [20]byte
var namespace, setName string
var userKey Value
var err error
for i := 0; i < fieldCount; i++ {
if err = cmd.readBytes(4); err != nil {
return nil, err
}
fieldlen := int(Buffer.BytesToUint32(cmd.dataBuffer, 0))
if err = cmd.readBytes(fieldlen); err != nil {
return nil, err
}
fieldtype := FieldType(cmd.dataBuffer[0])
size := fieldlen - 1
switch fieldtype {
case DIGEST_RIPE:
copy(digest[:], cmd.dataBuffer[1:size+1])
case NAMESPACE:
namespace = string(cmd.dataBuffer[1 : size+1])
case TABLE:
setName = string(cmd.dataBuffer[1 : size+1])
case KEY:
if userKey, err = bytesToKeyValue(int(cmd.dataBuffer[1]), cmd.dataBuffer, 2, size-1); err != nil {
return nil, err
}
}
}
return &Key{namespace: namespace, setName: setName, digest: digest, userKey: userKey}, nil
}
// Parse all results in the batch. Add records to shared list.
// If the record was not found, the bins will be nil.
func (cmd *batchCommandGet) parseRecordResults(ifc command, receiveSize int) (bool, error) {
//Parse each message response and add it to the result array
cmd.dataOffset = 0
for cmd.dataOffset < receiveSize {
if err := cmd.readBytes(int(_MSG_REMAINING_HEADER_SIZE)); err != nil {
return false, err
}
resultCode := ResultCode(cmd.dataBuffer[5] & 0xFF)
// The only valid server return codes are "ok" and "not found".
// If other return codes are received, then abort the batch.
if resultCode != 0 && resultCode != KEY_NOT_FOUND_ERROR {
return false, NewAerospikeError(resultCode)
}
info3 := int(cmd.dataBuffer[3])
// If cmd is the end marker of the response, do not proceed further
if (info3 & _INFO3_LAST) == _INFO3_LAST {
return false, nil
}
generation := Buffer.BytesToUint32(cmd.dataBuffer, 6)
expiration := TTL(Buffer.BytesToUint32(cmd.dataBuffer, 10))
fieldCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 18))
opCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 20))
key, err := cmd.parseKey(fieldCount)
if err != nil {
return false, err
}
offset := cmd.batchNamespace.offsets[cmd.index] //cmd.keyMap[string(key.digest)]
cmd.index++
if bytes.Equal(key.digest[:], cmd.keys[offset].digest[:]) {
if resultCode == 0 {
if cmd.records[offset], err = cmd.parseRecord(key, opCount, generation, expiration); err != nil {
return false, err
}
}
} else {
return false, NewAerospikeError(PARSE_ERROR, "Unexpected batch key returned: "+string(key.namespace)+","+Buffer.BytesToHexString(key.digest[:]))
}
}
return true, nil
}
func (cmd *serverCommand) parseRecordResults(ifc command, receiveSize int) (bool, error) {
// Server commands (Query/Execute UDF) should only send back a return code.
// Keep parsing logic to empty socket buffer just in case server does
// send records back.
cmd.dataOffset = 0
for cmd.dataOffset < receiveSize {
if err := cmd.readBytes(int(_MSG_REMAINING_HEADER_SIZE)); err != nil {
return false, err
}
resultCode := ResultCode(cmd.dataBuffer[5] & 0xFF)
if resultCode != 0 {
if resultCode == KEY_NOT_FOUND_ERROR {
return false, nil
}
return false, NewAerospikeError(resultCode)
}
info3 := int(cmd.dataBuffer[3])
// If cmd is the end marker of the response, do not proceed further
if (info3 & _INFO3_LAST) == _INFO3_LAST {
return false, nil
}
fieldCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 18))
opCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 20))
if _, err := cmd.parseKey(fieldCount); err != nil {
return false, err
}
for i := 0; i < opCount; i++ {
if err := cmd.readBytes(8); err != nil {
return false, err
}
opSize := int(Buffer.BytesToUint32(cmd.dataBuffer, 0))
nameSize := int(cmd.dataBuffer[7])
if err := cmd.readBytes(nameSize); err != nil {
return false, err
}
particleBytesSize := int((opSize - (4 + nameSize)))
if err := cmd.readBytes(particleBytesSize); err != nil {
return false, err
}
}
}
return true, nil
}
func (cmd *readHeaderCommand) parseResult(ifc command, conn *Connection) error {
// Read header.
if _, err := conn.Read(cmd.dataBuffer, int(_MSG_TOTAL_HEADER_SIZE)); err != nil {
return err
}
resultCode := cmd.dataBuffer[13] & 0xFF
if resultCode == 0 {
generation := Buffer.BytesToUint32(cmd.dataBuffer, 14)
expiration := TTL(Buffer.BytesToUint32(cmd.dataBuffer, 18))
cmd.record = newRecord(cmd.node, cmd.key, nil, generation, expiration)
} else {
if ResultCode(resultCode) == KEY_NOT_FOUND_ERROR {
cmd.record = nil
} else {
return NewAerospikeError(ResultCode(resultCode))
}
}
if err := cmd.emptySocket(conn); err != nil {
return err
}
return nil
}
func batchParseObject(
cmd *baseMultiCommand,
obj reflect.Value,
opCount int,
fieldCount int,
generation uint32,
expiration uint32,
) error {
for i := 0; i < opCount; i++ {
if err := cmd.readBytes(8); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return err
}
opSize := int(Buffer.BytesToUint32(cmd.dataBuffer, 0))
particleType := int(cmd.dataBuffer[5])
nameSize := int(cmd.dataBuffer[7])
if err := cmd.readBytes(nameSize); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return err
}
name := string(cmd.dataBuffer[:nameSize])
particleBytesSize := int((opSize - (4 + nameSize)))
if err := cmd.readBytes(particleBytesSize); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return err
}
value, err := bytesToParticle(particleType, cmd.dataBuffer, 0, particleBytesSize)
if err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return err
}
iobj := indirect(obj)
if err := setObjectField(cmd.resObjMappings, iobj, name, value); err != nil {
return err
}
}
return nil
}
func (upckr *unpacker) UnpackMap() (interface{}, error) {
if upckr.length <= 0 {
return nil, nil
}
theType := upckr.buffer[upckr.offset] & 0xff
upckr.offset++
var count int
if (theType & 0xf0) == 0x80 {
count = int(theType & 0x0f)
} else if theType == 0xde {
count = int(Buffer.BytesToUint16(upckr.buffer, upckr.offset))
upckr.offset += 2
} else if theType == 0xdf {
count = int(Buffer.BytesToUint32(upckr.buffer, upckr.offset))
upckr.offset += 4
} else {
return make(map[interface{}]interface{}), nil
}
return upckr.unpackMap(count)
}
func (upckr *unpacker) UnpackList() ([]interface{}, error) {
if upckr.length <= 0 {
return nil, nil
}
theType := upckr.buffer[upckr.offset] & 0xff
upckr.offset++
var count int
if (theType & 0xf0) == 0x90 {
count = int(theType & 0x0f)
} else if theType == 0xdc {
count = int(Buffer.BytesToUint16(upckr.buffer, upckr.offset))
upckr.offset += 2
} else if theType == 0xdd {
count = int(Buffer.BytesToUint32(upckr.buffer, upckr.offset))
upckr.offset += 4
} else {
return nil, nil
}
return upckr.unpackList(count)
}
func parseObject(
cmd *readCommand,
opCount int,
fieldCount int,
generation uint32,
expiration uint32,
) error {
receiveOffset := 0
// There can be fields in the response (setname etc).
// But for now, ignore them. Expose them to the API if needed in the future.
// Logger.Debug("field count: %d, databuffer: %v", fieldCount, cmd.dataBuffer)
if fieldCount > 0 {
// Just skip over all the fields
for i := 0; i < fieldCount; i++ {
// Logger.Debug("%d", receiveOffset)
fieldSize := int(Buffer.BytesToUint32(cmd.dataBuffer, receiveOffset))
receiveOffset += (4 + fieldSize)
}
}
var rv reflect.Value
if opCount > 0 {
rv = *cmd.object
if rv.Kind() != reflect.Ptr {
return errors.New("Invalid type for result object. It should be of type Struct Pointer.")
}
rv = rv.Elem()
if !rv.CanAddr() {
return errors.New("Invalid type for object. It should be addressable (a pointer)")
}
if rv.Kind() != reflect.Struct {
return errors.New("Invalid type for object. It should be a pointer to a struct.")
}
}
// find the name based on tag mapping
iobj := indirect(rv)
mappings := objectMappings.getMapping(iobj.Type())
if err := setObjectMetaFields(iobj, TTL(expiration), generation); err != nil {
return err
}
for i := 0; i < opCount; i++ {
opSize := int(Buffer.BytesToUint32(cmd.dataBuffer, receiveOffset))
particleType := int(cmd.dataBuffer[receiveOffset+5])
nameSize := int(cmd.dataBuffer[receiveOffset+7])
name := string(cmd.dataBuffer[receiveOffset+8 : receiveOffset+8+nameSize])
receiveOffset += 4 + 4 + nameSize
particleBytesSize := int(opSize - (4 + nameSize))
value, _ := bytesToParticle(particleType, cmd.dataBuffer, receiveOffset, particleBytesSize)
if err := setObjectField(mappings, iobj, name, value); err != nil {
return err
}
receiveOffset += particleBytesSize
}
return nil
}
func (upckr *unpacker) unpackObject(isMapKey bool) (interface{}, error) {
theType := upckr.buffer[upckr.offset] & 0xff
upckr.offset++
switch theType {
case 0xc0:
return nil, nil
case 0xc3:
return true, nil
case 0xc2:
return false, nil
case 0xca:
val := Buffer.BytesToFloat32(upckr.buffer, upckr.offset)
upckr.offset += 4
return val, nil
case 0xcb:
val := Buffer.BytesToFloat64(upckr.buffer, upckr.offset)
upckr.offset += 8
return val, nil
case 0xcc:
r := upckr.buffer[upckr.offset] & 0xff
upckr.offset++
return int(r), nil
case 0xcd:
val := uint16(Buffer.BytesToInt16(upckr.buffer, upckr.offset))
upckr.offset += 2
return int(val), nil
case 0xce:
val := uint32(Buffer.BytesToInt32(upckr.buffer, upckr.offset))
upckr.offset += 4
if Buffer.Arch64Bits {
return int(val), nil
}
return int64(val), nil
case 0xcf:
val := Buffer.BytesToInt64(upckr.buffer, upckr.offset)
upckr.offset += 8
return uint64(val), nil
case 0xd0:
r := int8(upckr.buffer[upckr.offset])
upckr.offset++
return int(r), nil
case 0xd1:
val := Buffer.BytesToInt16(upckr.buffer, upckr.offset)
upckr.offset += 2
return int(val), nil
case 0xd2:
val := Buffer.BytesToInt32(upckr.buffer, upckr.offset)
upckr.offset += 4
return int(val), nil
case 0xd3:
val := Buffer.BytesToInt64(upckr.buffer, upckr.offset)
upckr.offset += 8
if Buffer.Arch64Bits {
return int(val), nil
}
return int64(val), nil
case 0xc4, 0xd9:
count := int(upckr.offset & 0xff)
upckr.offset++
return upckr.unpackBlob(count, isMapKey)
case 0xc5, 0xda:
count := int(Buffer.BytesToUint16(upckr.buffer, upckr.offset))
upckr.offset += 2
return upckr.unpackBlob(count, isMapKey)
case 0xc6, 0xdb:
count := int(Buffer.BytesToUint32(upckr.buffer, upckr.offset))
upckr.offset += 4
return upckr.unpackBlob(count, isMapKey)
case 0xdc:
count := int(Buffer.BytesToUint16(upckr.buffer, upckr.offset))
upckr.offset += 2
return upckr.unpackList(count)
case 0xdd:
count := int(Buffer.BytesToUint32(upckr.buffer, upckr.offset))
upckr.offset += 4
return upckr.unpackList(count)
case 0xde:
count := int(Buffer.BytesToUint16(upckr.buffer, upckr.offset))
upckr.offset += 2
return upckr.unpackMap(count)
case 0xdf:
count := int(Buffer.BytesToUint32(upckr.buffer, upckr.offset))
upckr.offset += 4
return upckr.unpackMap(count)
case 0xd4:
// Skip over type extension with 1 byte
upckr.offset += 1 + 1
return nil, skipHeaderErr
case 0xd5:
// Skip over type extension with 2 bytes
upckr.offset += 1 + 2
return nil, skipHeaderErr
case 0xd6:
// Skip over type extension with 4 bytes
upckr.offset += 1 + 4
return nil, skipHeaderErr
case 0xd7:
// Skip over type extension with 8 bytes
upckr.offset += 1 + 8
return nil, skipHeaderErr
case 0xd8:
// Skip over type extension with 16 bytes
upckr.offset += 1 + 16
return nil, skipHeaderErr
case 0xc7: // Skip over type extension with 8 bit header and bytes
count := int(upckr.buffer[upckr.offset] & 0xff)
upckr.offset += count + 1 + 1
return nil, skipHeaderErr
case 0xc8: // Skip over type extension with 16 bit header and bytes
count := int(Buffer.BytesToInt16(upckr.buffer, upckr.offset))
upckr.offset += count + 1 + 2
return nil, skipHeaderErr
case 0xc9: // Skip over type extension with 32 bit header and bytes
count := int(Buffer.BytesToInt32(upckr.buffer, upckr.offset))
upckr.offset += count + 1 + 4
return nil, skipHeaderErr
default:
if (theType & 0xe0) == 0xa0 {
return upckr.unpackBlob(int(theType&0x1f), isMapKey)
}
if (theType & 0xf0) == 0x80 {
return upckr.unpackMap(int(theType & 0x0f))
}
if (theType & 0xf0) == 0x90 {
count := int(theType & 0x0f)
return upckr.unpackList(count)
}
if theType < 0x80 {
return int(theType), nil
}
if theType >= 0xe0 {
return int(int(theType) - 0xe0 - 32), nil
}
}
return nil, NewAerospikeError(SERIALIZE_ERROR)
}
func (cmd *baseMultiCommand) parseRecordResults(ifc command, receiveSize int) (bool, error) {
// Read/parse remaining message bytes one record at a time.
cmd.dataOffset = 0
for cmd.dataOffset < receiveSize {
if err := cmd.readBytes(int(_MSG_REMAINING_HEADER_SIZE)); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
resultCode := ResultCode(cmd.dataBuffer[5] & 0xFF)
if resultCode != 0 {
if resultCode == KEY_NOT_FOUND_ERROR {
// consume the rest of the input buffer from the socket
if cmd.dataOffset < receiveSize {
if err := cmd.readBytes(receiveSize - cmd.dataOffset); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
}
return false, nil
}
err := NewAerospikeError(resultCode)
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
info3 := int(cmd.dataBuffer[3])
// If cmd is the end marker of the response, do not proceed further
if (info3 & _INFO3_LAST) == _INFO3_LAST {
return false, nil
}
generation := Buffer.BytesToUint32(cmd.dataBuffer, 6)
expiration := TTL(Buffer.BytesToUint32(cmd.dataBuffer, 10))
fieldCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 18))
opCount := int(Buffer.BytesToUint16(cmd.dataBuffer, 20))
key, err := cmd.parseKey(fieldCount)
if err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
// if there is a recordset, process the record traditionally
// otherwise, it is supposed to be a record channel
if cmd.selectCases == nil {
// Parse bins.
var bins BinMap
for i := 0; i < opCount; i++ {
if err := cmd.readBytes(8); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
opSize := int(Buffer.BytesToUint32(cmd.dataBuffer, 0))
particleType := int(cmd.dataBuffer[5])
nameSize := int(cmd.dataBuffer[7])
if err := cmd.readBytes(nameSize); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
name := string(cmd.dataBuffer[:nameSize])
particleBytesSize := int((opSize - (4 + nameSize)))
if err = cmd.readBytes(particleBytesSize); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
value, err := bytesToParticle(particleType, cmd.dataBuffer, 0, particleBytesSize)
if err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
if bins == nil {
bins = make(BinMap, opCount)
}
bins[name] = value
}
// If the channel is full and it blocks, we don't want this command to
// block forever, or panic in case the channel is closed in the meantime.
select {
// send back the result on the async channel
case cmd.recordset.Records <- newRecord(cmd.node, key, bins, generation, expiration):
case <-cmd.recordset.cancelled:
return false, NewAerospikeError(cmd.terminationErrorType)
}
} else if multiObjectParser != nil {
obj := reflect.New(cmd.resObjType)
if err := multiObjectParser(cmd, obj, opCount, fieldCount, generation, expiration); err != nil {
cmd.recordset.Errors <- newNodeError(cmd.node, err)
return false, err
}
// set the object to send
cmd.selectCases[0].Send = obj
chosen, _, _ := reflect.Select(cmd.selectCases)
switch chosen {
case 0: // object sent
case 1: // cancel channel is closed
return false, NewAerospikeError(cmd.terminationErrorType)
}
}
}
return true, nil
}