mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-05 05:18:52 +08:00
307a8ce535
Co-authored-by: jaime <yun.zhang@zilliz.com> Co-authored-by: Cai Yudong <yudong.cai@zilliz.com> Co-authored-by: Jenny Li <jing.li@zilliz.com> Co-authored-by: Nemo <yuchen.gao@zilliz.com> Signed-off-by: yun.zhang <yun.zhang@zilliz.com> Co-authored-by: Cai Yudong <yudong.cai@zilliz.com> Co-authored-by: Jenny Li <jing.li@zilliz.com> Co-authored-by: Nemo <yuchen.gao@zilliz.com>
656 lines
19 KiB
Go
656 lines
19 KiB
Go
// Licensed to the LF AI & Data foundation under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you under the Apache License, Version 2.0 (the
|
|
// "License"); you may not use this file except in compliance
|
|
// with the License. You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package storage
|
|
|
|
/*
|
|
#cgo CFLAGS: -I${SRCDIR}/cwrapper
|
|
|
|
#cgo LDFLAGS: -L${SRCDIR}/cwrapper/output/lib -lwrapper -lparquet -larrow -larrow_bundled_dependencies -lstdc++ -lm
|
|
#include <stdlib.h>
|
|
#include "ParquetWrapper.h"
|
|
*/
|
|
import "C"
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"reflect"
|
|
"unsafe"
|
|
|
|
"github.com/milvus-io/milvus/internal/log"
|
|
"github.com/milvus-io/milvus/internal/proto/commonpb"
|
|
"github.com/milvus-io/milvus/internal/proto/schemapb"
|
|
)
|
|
|
|
// PayloadWriterInterface abstracts PayloadWriter
|
|
type PayloadWriterInterface interface {
|
|
AddDataToPayload(msgs interface{}, dim ...int) error
|
|
AddBoolToPayload(msgs []bool) error
|
|
AddByteToPayload(msgs []byte) error
|
|
AddInt8ToPayload(msgs []int8) error
|
|
AddInt16ToPayload(msgs []int16) error
|
|
AddInt32ToPayload(msgs []int32) error
|
|
AddInt64ToPayload(msgs []int64) error
|
|
AddFloatToPayload(msgs []float32) error
|
|
AddDoubleToPayload(msgs []float64) error
|
|
AddOneStringToPayload(msgs string) error
|
|
AddBinaryVectorToPayload(binVec []byte, dim int) error
|
|
AddFloatVectorToPayload(binVec []float32, dim int) error
|
|
FinishPayloadWriter() error
|
|
GetPayloadBufferFromWriter() ([]byte, error)
|
|
GetPayloadLengthFromWriter() (int, error)
|
|
ReleasePayloadWriter()
|
|
Close()
|
|
}
|
|
|
|
// PayloadReaderInterface abstracts PayloadReader
|
|
type PayloadReaderInterface interface {
|
|
GetDataFromPayload(idx ...int) (interface{}, int, error)
|
|
GetBoolFromPayload() ([]bool, error)
|
|
GetByteFromPayload() ([]byte, error)
|
|
GetInt8FromPayload() ([]int8, error)
|
|
GetInt16FromPayload() ([]int16, error)
|
|
GetInt32FromPayload() ([]int32, error)
|
|
GetInt64FromPayload() ([]int64, error)
|
|
GetFloatFromPayload() ([]float32, error)
|
|
GetDoubleFromPayload() ([]float64, error)
|
|
GetOneStringFromPayload(idx int) (string, error)
|
|
GetBinaryVectorFromPayload() ([]byte, int, error)
|
|
GetFloatVectorFromPayload() ([]float32, int, error)
|
|
GetPayloadLengthFromReader() (int, error)
|
|
ReleasePayloadReader()
|
|
Close()
|
|
}
|
|
|
|
// PayloadWriter writes data into payload
|
|
type PayloadWriter struct {
|
|
payloadWriterPtr C.CPayloadWriter
|
|
colType schemapb.DataType
|
|
}
|
|
|
|
// PayloadReader reads data from payload
|
|
type PayloadReader struct {
|
|
payloadReaderPtr C.CPayloadReader
|
|
colType schemapb.DataType
|
|
}
|
|
|
|
// NewPayloadWriter is constructor of PayloadWriter
|
|
func NewPayloadWriter(colType schemapb.DataType) (*PayloadWriter, error) {
|
|
w := C.NewPayloadWriter(C.int(colType))
|
|
if w == nil {
|
|
return nil, errors.New("create Payload writer failed")
|
|
}
|
|
return &PayloadWriter{payloadWriterPtr: w, colType: colType}, nil
|
|
}
|
|
|
|
// AddDataToPayload adds @msgs into payload, if @msgs is vector, dimension should be specified by @dim
|
|
func (w *PayloadWriter) AddDataToPayload(msgs interface{}, dim ...int) error {
|
|
switch len(dim) {
|
|
case 0:
|
|
switch w.colType {
|
|
case schemapb.DataType_Bool:
|
|
val, ok := msgs.([]bool)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddBoolToPayload(val)
|
|
case schemapb.DataType_Int8:
|
|
val, ok := msgs.([]int8)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddInt8ToPayload(val)
|
|
case schemapb.DataType_Int16:
|
|
val, ok := msgs.([]int16)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddInt16ToPayload(val)
|
|
case schemapb.DataType_Int32:
|
|
val, ok := msgs.([]int32)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddInt32ToPayload(val)
|
|
case schemapb.DataType_Int64:
|
|
val, ok := msgs.([]int64)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddInt64ToPayload(val)
|
|
case schemapb.DataType_Float:
|
|
val, ok := msgs.([]float32)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddFloatToPayload(val)
|
|
case schemapb.DataType_Double:
|
|
val, ok := msgs.([]float64)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddDoubleToPayload(val)
|
|
case schemapb.DataType_String:
|
|
val, ok := msgs.(string)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddOneStringToPayload(val)
|
|
default:
|
|
return errors.New("incorrect datatype")
|
|
}
|
|
case 1:
|
|
switch w.colType {
|
|
case schemapb.DataType_BinaryVector:
|
|
val, ok := msgs.([]byte)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddBinaryVectorToPayload(val, dim[0])
|
|
case schemapb.DataType_FloatVector:
|
|
val, ok := msgs.([]float32)
|
|
if !ok {
|
|
return errors.New("incorrect data type")
|
|
}
|
|
return w.AddFloatVectorToPayload(val, dim[0])
|
|
default:
|
|
return errors.New("incorrect datatype")
|
|
}
|
|
default:
|
|
return errors.New("incorrect input numbers")
|
|
}
|
|
}
|
|
|
|
// AddBoolToPayload adds @msgs into payload
|
|
func (w *PayloadWriter) AddBoolToPayload(msgs []bool) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
|
|
cMsgs := (*C.bool)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddBooleanToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddBoolToPayload failed")
|
|
}
|
|
|
|
// AddByteToPayload adds @msgs into payload
|
|
func (w *PayloadWriter) AddByteToPayload(msgs []byte) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
cMsgs := (*C.int8_t)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddInt8ToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddInt8ToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) AddInt8ToPayload(msgs []int8) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
cMsgs := (*C.int8_t)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddInt8ToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddInt8ToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) AddInt16ToPayload(msgs []int16) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
|
|
cMsgs := (*C.int16_t)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddInt16ToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddInt16ToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) AddInt32ToPayload(msgs []int32) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
|
|
cMsgs := (*C.int32_t)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddInt32ToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddInt32ToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) AddInt64ToPayload(msgs []int64) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
|
|
cMsgs := (*C.int64_t)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddInt64ToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddInt64ToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) AddFloatToPayload(msgs []float32) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
|
|
cMsgs := (*C.float)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddFloatToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddFloatToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) AddDoubleToPayload(msgs []float64) error {
|
|
length := len(msgs)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty msgs into payload")
|
|
}
|
|
|
|
cMsgs := (*C.double)(unsafe.Pointer(&msgs[0]))
|
|
cLength := C.int(length)
|
|
|
|
status := C.AddDoubleToPayload(w.payloadWriterPtr, cMsgs, cLength)
|
|
return HandleCStatus(&status, "AddDoubleToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) AddOneStringToPayload(msg string) error {
|
|
length := len(msg)
|
|
if length == 0 {
|
|
return errors.New("can't add empty string into payload")
|
|
}
|
|
|
|
cmsg := C.CString(msg)
|
|
clength := C.int(length)
|
|
defer C.free(unsafe.Pointer(cmsg))
|
|
|
|
status := C.AddOneStringToPayload(w.payloadWriterPtr, cmsg, clength)
|
|
return HandleCStatus(&status, "AddOneStringToPayload failed")
|
|
}
|
|
|
|
// AddBinaryVectorToPayload dimension > 0 && (%8 == 0)
|
|
func (w *PayloadWriter) AddBinaryVectorToPayload(binVec []byte, dim int) error {
|
|
length := len(binVec)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty binVec into payload")
|
|
}
|
|
if dim <= 0 {
|
|
return errors.New("dimension should be greater than 0")
|
|
}
|
|
|
|
cBinVec := (*C.uint8_t)(&binVec[0])
|
|
cDim := C.int(dim)
|
|
cLength := C.int(length / (dim / 8))
|
|
|
|
status := C.AddBinaryVectorToPayload(w.payloadWriterPtr, cBinVec, cDim, cLength)
|
|
return HandleCStatus(&status, "AddBinaryVectorToPayload failed")
|
|
}
|
|
|
|
// AddFloatVectorToPayload dimension > 0 && (%8 == 0)
|
|
func (w *PayloadWriter) AddFloatVectorToPayload(floatVec []float32, dim int) error {
|
|
length := len(floatVec)
|
|
if length <= 0 {
|
|
return errors.New("can't add empty floatVec into payload")
|
|
}
|
|
if dim <= 0 {
|
|
return errors.New("dimension should be greater than 0")
|
|
}
|
|
|
|
cVec := (*C.float)(&floatVec[0])
|
|
cDim := C.int(dim)
|
|
cLength := C.int(length / dim)
|
|
|
|
status := C.AddFloatVectorToPayload(w.payloadWriterPtr, cVec, cDim, cLength)
|
|
return HandleCStatus(&status, "AddFloatVectorToPayload failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) FinishPayloadWriter() error {
|
|
status := C.FinishPayloadWriter(w.payloadWriterPtr)
|
|
return HandleCStatus(&status, "FinishPayloadWriter failed")
|
|
}
|
|
|
|
func (w *PayloadWriter) GetPayloadBufferFromWriter() ([]byte, error) {
|
|
cb := C.GetPayloadBufferFromWriter(w.payloadWriterPtr)
|
|
pointer := uintptr(unsafe.Pointer(cb.data))
|
|
length := int(cb.length)
|
|
if length <= 0 {
|
|
return nil, errors.New("empty buffer")
|
|
}
|
|
|
|
var data []byte
|
|
sh := (*reflect.SliceHeader)(unsafe.Pointer(&data))
|
|
sh.Data = pointer
|
|
sh.Len = length
|
|
sh.Cap = length
|
|
|
|
return data, nil
|
|
}
|
|
|
|
func (w *PayloadWriter) GetPayloadLengthFromWriter() (int, error) {
|
|
length := C.GetPayloadLengthFromWriter(w.payloadWriterPtr)
|
|
return int(length), nil
|
|
}
|
|
|
|
func (w *PayloadWriter) ReleasePayloadWriter() {
|
|
C.ReleasePayloadWriter(w.payloadWriterPtr)
|
|
}
|
|
|
|
func (w *PayloadWriter) Close() {
|
|
w.ReleasePayloadWriter()
|
|
}
|
|
|
|
func NewPayloadReader(colType schemapb.DataType, buf []byte) (*PayloadReader, error) {
|
|
if len(buf) == 0 {
|
|
return nil, errors.New("create Payload reader failed, buffer is empty")
|
|
}
|
|
r := C.NewPayloadReader(C.int(colType), (*C.uint8_t)(unsafe.Pointer(&buf[0])), C.int64_t(len(buf)))
|
|
if r == nil {
|
|
return nil, errors.New("failed to read parquet from buffer")
|
|
}
|
|
return &PayloadReader{payloadReaderPtr: r, colType: colType}, nil
|
|
}
|
|
|
|
// GetDataFromPayload returns data,length from payload, returns err if failed
|
|
// Params:
|
|
// `idx`: String index
|
|
// Return:
|
|
// `interface{}`: all types.
|
|
// `int`: length, only meaningful to FLOAT/BINARY VECTOR type.
|
|
// `error`: error.
|
|
func (r *PayloadReader) GetDataFromPayload(idx ...int) (interface{}, int, error) {
|
|
switch len(idx) {
|
|
case 1:
|
|
switch r.colType {
|
|
case schemapb.DataType_String:
|
|
val, err := r.GetOneStringFromPayload(idx[0])
|
|
return val, 0, err
|
|
default:
|
|
return nil, 0, errors.New("unknown type")
|
|
}
|
|
case 0:
|
|
switch r.colType {
|
|
case schemapb.DataType_Bool:
|
|
val, err := r.GetBoolFromPayload()
|
|
return val, 0, err
|
|
case schemapb.DataType_Int8:
|
|
val, err := r.GetInt8FromPayload()
|
|
return val, 0, err
|
|
case schemapb.DataType_Int16:
|
|
val, err := r.GetInt16FromPayload()
|
|
return val, 0, err
|
|
case schemapb.DataType_Int32:
|
|
val, err := r.GetInt32FromPayload()
|
|
return val, 0, err
|
|
case schemapb.DataType_Int64:
|
|
val, err := r.GetInt64FromPayload()
|
|
return val, 0, err
|
|
case schemapb.DataType_Float:
|
|
val, err := r.GetFloatFromPayload()
|
|
return val, 0, err
|
|
case schemapb.DataType_Double:
|
|
val, err := r.GetDoubleFromPayload()
|
|
return val, 0, err
|
|
case schemapb.DataType_BinaryVector:
|
|
return r.GetBinaryVectorFromPayload()
|
|
case schemapb.DataType_FloatVector:
|
|
return r.GetFloatVectorFromPayload()
|
|
default:
|
|
return nil, 0, errors.New("unknown type")
|
|
}
|
|
default:
|
|
return nil, 0, errors.New("incorrect number of index")
|
|
}
|
|
}
|
|
|
|
// ReleasePayloadReader release payload reader.
|
|
func (r *PayloadReader) ReleasePayloadReader() {
|
|
C.ReleasePayloadReader(r.payloadReaderPtr)
|
|
}
|
|
|
|
// GetBoolFromPayload returns bool slice from payload.
|
|
func (r *PayloadReader) GetBoolFromPayload() ([]bool, error) {
|
|
if r.colType != schemapb.DataType_Bool {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.bool
|
|
var cSize C.int
|
|
|
|
status := C.GetBoolFromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetBoolFromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]bool)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
// GetByteFromPayload returns byte slice from payload
|
|
func (r *PayloadReader) GetByteFromPayload() ([]byte, error) {
|
|
if r.colType != schemapb.DataType_Int8 {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.int8_t
|
|
var cSize C.int
|
|
|
|
status := C.GetInt8FromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetInt8FromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]byte)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
// GetInt8FromPayload returns int8 slice from payload
|
|
func (r *PayloadReader) GetInt8FromPayload() ([]int8, error) {
|
|
if r.colType != schemapb.DataType_Int8 {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.int8_t
|
|
var cSize C.int
|
|
|
|
status := C.GetInt8FromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetInt8FromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]int8)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
func (r *PayloadReader) GetInt16FromPayload() ([]int16, error) {
|
|
if r.colType != schemapb.DataType_Int16 {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.int16_t
|
|
var cSize C.int
|
|
|
|
status := C.GetInt16FromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetInt16FromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]int16)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
func (r *PayloadReader) GetInt32FromPayload() ([]int32, error) {
|
|
if r.colType != schemapb.DataType_Int32 {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.int32_t
|
|
var cSize C.int
|
|
|
|
status := C.GetInt32FromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetInt32FromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]int32)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
func (r *PayloadReader) GetInt64FromPayload() ([]int64, error) {
|
|
if r.colType != schemapb.DataType_Int64 {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.int64_t
|
|
var cSize C.int
|
|
|
|
status := C.GetInt64FromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetInt64FromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]int64)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
func (r *PayloadReader) GetFloatFromPayload() ([]float32, error) {
|
|
if r.colType != schemapb.DataType_Float {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.float
|
|
var cSize C.int
|
|
|
|
status := C.GetFloatFromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetFloatFromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]float32)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
func (r *PayloadReader) GetDoubleFromPayload() ([]float64, error) {
|
|
if r.colType != schemapb.DataType_Double {
|
|
return nil, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.double
|
|
var cSize C.int
|
|
|
|
status := C.GetDoubleFromPayload(r.payloadReaderPtr, &cMsg, &cSize)
|
|
if err := HandleCStatus(&status, "GetDoubleFromPayload failed"); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
slice := (*[1 << 28]float64)(unsafe.Pointer(cMsg))[:cSize:cSize]
|
|
return slice, nil
|
|
}
|
|
|
|
func (r *PayloadReader) GetOneStringFromPayload(idx int) (string, error) {
|
|
if r.colType != schemapb.DataType_String {
|
|
return "", errors.New("incorrect data type")
|
|
}
|
|
|
|
var cStr *C.char
|
|
var cSize C.int
|
|
|
|
status := C.GetOneStringFromPayload(r.payloadReaderPtr, C.int(idx), &cStr, &cSize)
|
|
if err := HandleCStatus(&status, "GetOneStringFromPayload failed"); err != nil {
|
|
return "", err
|
|
}
|
|
return C.GoStringN(cStr, cSize), nil
|
|
}
|
|
|
|
// GetBinaryVectorFromPayload returns vector, dimension, error
|
|
func (r *PayloadReader) GetBinaryVectorFromPayload() ([]byte, int, error) {
|
|
if r.colType != schemapb.DataType_BinaryVector {
|
|
return nil, 0, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.uint8_t
|
|
var cDim C.int
|
|
var cLen C.int
|
|
|
|
status := C.GetBinaryVectorFromPayload(r.payloadReaderPtr, &cMsg, &cDim, &cLen)
|
|
if err := HandleCStatus(&status, "GetBinaryVectorFromPayload failed"); err != nil {
|
|
return nil, 0, err
|
|
}
|
|
length := (cDim / 8) * cLen
|
|
|
|
slice := (*[1 << 28]byte)(unsafe.Pointer(cMsg))[:length:length]
|
|
return slice, int(cDim), nil
|
|
}
|
|
|
|
// GetFloatVectorFromPayload returns vector, dimension, error
|
|
func (r *PayloadReader) GetFloatVectorFromPayload() ([]float32, int, error) {
|
|
if r.colType != schemapb.DataType_FloatVector {
|
|
return nil, 0, errors.New("incorrect data type")
|
|
}
|
|
|
|
var cMsg *C.float
|
|
var cDim C.int
|
|
var cLen C.int
|
|
|
|
status := C.GetFloatVectorFromPayload(r.payloadReaderPtr, &cMsg, &cDim, &cLen)
|
|
if err := HandleCStatus(&status, "GetFloatVectorFromPayload failed"); err != nil {
|
|
return nil, 0, err
|
|
}
|
|
length := cDim * cLen
|
|
|
|
slice := (*[1 << 28]float32)(unsafe.Pointer(cMsg))[:length:length]
|
|
return slice, int(cDim), nil
|
|
}
|
|
|
|
func (r *PayloadReader) GetPayloadLengthFromReader() (int, error) {
|
|
length := C.GetPayloadLengthFromReader(r.payloadReaderPtr)
|
|
return int(length), nil
|
|
}
|
|
|
|
// Close closes the payload reader
|
|
func (r *PayloadReader) Close() {
|
|
r.ReleasePayloadReader()
|
|
}
|
|
|
|
// HandleCStatus deal with the error returned from CGO
|
|
func HandleCStatus(status *C.CStatus, extraInfo string) error {
|
|
if status.error_code == 0 {
|
|
return nil
|
|
}
|
|
errorCode := status.error_code
|
|
errorName, ok := commonpb.ErrorCode_name[int32(errorCode)]
|
|
if !ok {
|
|
errorName = "UnknownError"
|
|
}
|
|
errorMsg := C.GoString(status.error_msg)
|
|
defer C.free(unsafe.Pointer(status.error_msg))
|
|
|
|
finalMsg := fmt.Sprintf("[%s] %s", errorName, errorMsg)
|
|
logMsg := fmt.Sprintf("%s, C Runtime Exception: %s\n", extraInfo, finalMsg)
|
|
log.Warn(logMsg)
|
|
return errors.New(finalMsg)
|
|
}
|