func (pckr *packer) PackLong(valType int, val int64) {
pckr.buffer.WriteByte(byte(valType))
pos := pckr.grow(_b8)
pckr.buffer.Write(Buffer.Int64ToBytes(val, pckr.buffer.Bytes(), pos))
}
func (pckr *packer) PackULong(val uint64) {
pckr.buffer.WriteByte(byte(0xcf))
pos := pckr.grow(_b8)
Buffer.Int64ToBytes(int64(val), pckr.buffer.Bytes(), pos)
}
func (vl LongValue) reader() io.Reader {
return bytes.NewReader(Buffer.Int64ToBytes(int64(vl), nil, 0))
}
func (vl LongValue) write(buffer []byte, offset int) (int, error) {
Buffer.Int64ToBytes(int64(vl), buffer, offset)
return 8, nil
}
func (acmd *AdminCommand) writeSize() {
// Write total size of message which is the current offset.
var size = int64(acmd.dataOffset-8) | (_MSG_VERSION << 56) | (_MSG_TYPE << 48)
Buffer.Int64ToBytes(size, acmd.dataBuffer, 0)
}
func (cmd *baseCommand) end() {
var size = int64(cmd.dataOffset-8) | (_CL_MSG_VERSION << 56) | (_AS_MSG_TYPE << 48)
Buffer.Int64ToBytes(size, cmd.dataBuffer, 0)
}
func (cmd *baseCommand) setQuery(policy *QueryPolicy, statement *Statement, write bool) (err error) {
var functionArgBuffer []byte
fieldCount := 0
filterSize := 0
binNameSize := 0
cmd.begin()
if statement.Namespace != "" {
cmd.dataOffset += len(statement.Namespace) + int(_FIELD_HEADER_SIZE)
fieldCount++
}
if statement.IndexName != "" {
cmd.dataOffset += len(statement.IndexName) + int(_FIELD_HEADER_SIZE)
fieldCount++
}
if statement.SetName != "" {
cmd.dataOffset += len(statement.SetName) + int(_FIELD_HEADER_SIZE)
fieldCount++
}
// Allocate space for TaskId field.
cmd.dataOffset += 8 + int(_FIELD_HEADER_SIZE)
fieldCount++
if len(statement.Filters) > 0 {
cmd.dataOffset += int(_FIELD_HEADER_SIZE)
filterSize++ // num filters
for _, filter := range statement.Filters {
sz, err := filter.estimateSize()
if err != nil {
return err
}
filterSize += sz
}
cmd.dataOffset += filterSize
fieldCount++
// Query bin names are specified as a field (Scan bin names are specified later as operations)
if len(statement.BinNames) > 0 {
cmd.dataOffset += int(_FIELD_HEADER_SIZE)
binNameSize++ // num bin names
for _, binName := range statement.BinNames {
binNameSize += len(binName) + 1
}
cmd.dataOffset += binNameSize
fieldCount++
}
} else {
// Calling query with no filters is more efficiently handled by a primary index scan.
// Estimate scan options size.
cmd.dataOffset += (2 + int(_FIELD_HEADER_SIZE))
fieldCount++
}
if statement.functionName != "" {
cmd.dataOffset += int(_FIELD_HEADER_SIZE) + 1 // udf type
cmd.dataOffset += len(statement.packageName) + int(_FIELD_HEADER_SIZE)
cmd.dataOffset += len(statement.functionName) + int(_FIELD_HEADER_SIZE)
if len(statement.functionArgs) > 0 {
functionArgBuffer, err = packValueArray(statement.functionArgs)
if err != nil {
return err
}
} else {
functionArgBuffer = []byte{}
}
cmd.dataOffset += int(_FIELD_HEADER_SIZE) + len(functionArgBuffer)
fieldCount += 4
}
if len(statement.Filters) == 0 {
if len(statement.BinNames) > 0 {
for _, binName := range statement.BinNames {
cmd.estimateOperationSizeForBinName(binName)
}
}
}
if err := cmd.sizeBuffer(); err != nil {
return nil
}
operationCount := 0
if len(statement.Filters) == 0 && len(statement.BinNames) > 0 {
operationCount = len(statement.BinNames)
}
if write {
cmd.writeHeader(policy.BasePolicy, _INFO1_READ, _INFO2_WRITE, fieldCount, operationCount)
} else {
cmd.writeHeader(policy.BasePolicy, _INFO1_READ, 0, fieldCount, operationCount)
}
if statement.Namespace != "" {
cmd.writeFieldString(statement.Namespace, NAMESPACE)
}
if statement.IndexName != "" {
cmd.writeFieldString(statement.IndexName, INDEX_NAME)
}
if statement.SetName != "" {
cmd.writeFieldString(statement.SetName, TABLE)
}
cmd.writeFieldHeader(8, TRAN_ID)
Buffer.Int64ToBytes(int64(statement.TaskId), cmd.dataBuffer, cmd.dataOffset)
cmd.dataOffset += 8
if len(statement.Filters) > 0 {
cmd.writeFieldHeader(filterSize, INDEX_RANGE)
cmd.dataBuffer[cmd.dataOffset] = byte(len(statement.Filters))
cmd.dataOffset++
for _, filter := range statement.Filters {
cmd.dataOffset, err = filter.write(cmd.dataBuffer, cmd.dataOffset)
if err != nil {
return err
}
}
if len(statement.BinNames) > 0 {
cmd.writeFieldHeader(binNameSize, QUERY_BINLIST)
cmd.dataBuffer[cmd.dataOffset] = byte(len(statement.BinNames))
cmd.dataOffset++
for _, binName := range statement.BinNames {
len := copy(cmd.dataBuffer[cmd.dataOffset+1:], binName)
cmd.dataBuffer[cmd.dataOffset] = byte(len)
cmd.dataOffset += len + 1
}
}
} else {
// Calling query with no filters is more efficiently handled by a primary index scan.
cmd.writeFieldHeader(2, SCAN_OPTIONS)
priority := byte(policy.Priority)
priority <<= 4
cmd.dataBuffer[cmd.dataOffset] = priority
cmd.dataOffset++
cmd.dataBuffer[cmd.dataOffset] = byte(100)
cmd.dataOffset++
}
if statement.functionName != "" {
cmd.writeFieldHeader(1, UDF_OP)
if statement.returnData {
cmd.dataBuffer[cmd.dataOffset] = byte(1)
} else {
cmd.dataBuffer[cmd.dataOffset] = byte(2)
}
cmd.dataOffset++
cmd.writeFieldString(statement.packageName, UDF_PACKAGE_NAME)
cmd.writeFieldString(statement.functionName, UDF_FUNCTION)
cmd.writeFieldBytes(functionArgBuffer, UDF_ARGLIST)
}
// scan binNames come last
if len(statement.Filters) == 0 {
if len(statement.BinNames) > 0 {
for _, binName := range statement.BinNames {
cmd.writeOperationForBinName(binName, READ)
}
}
}
cmd.end()
return nil
}
