coze-studio/backend/infra/impl/document/searchstore/milvus/convert.go

120 lines
3.0 KiB
Go

/*
* Copyright 2025 coze-dev Authors
*
* Licensed 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 milvus
import (
"fmt"
"github.com/milvus-io/milvus/client/v2/entity"
"github.com/coze-dev/coze-studio/backend/infra/contract/document/searchstore"
"github.com/coze-dev/coze-studio/backend/pkg/lang/slices"
)
func denseFieldName(name string) string {
return fmt.Sprintf("dense_%s", name)
}
func denseIndexName(name string) string {
return fmt.Sprintf("index_dense_%s", name)
}
func sparseFieldName(name string) string {
return fmt.Sprintf("sparse_%s", name)
}
func sparseIndexName(name string) string {
return fmt.Sprintf("index_sparse_%s", name)
}
func convertFieldType(typ searchstore.FieldType) (entity.FieldType, error) {
switch typ {
case searchstore.FieldTypeInt64:
return entity.FieldTypeInt64, nil
case searchstore.FieldTypeText:
return entity.FieldTypeVarChar, nil
case searchstore.FieldTypeDenseVector:
return entity.FieldTypeFloatVector, nil
case searchstore.FieldTypeSparseVector:
return entity.FieldTypeSparseVector, nil
default:
return entity.FieldTypeNone, fmt.Errorf("[convertFieldType] unknown field type: %v", typ)
}
}
func convertDense(dense [][]float64) [][]float32 {
return slices.Transform(dense, func(a []float64) []float32 {
r := make([]float32, len(a))
for i := 0; i < len(a); i++ {
r[i] = float32(a[i])
}
return r
})
}
func convertMilvusDenseVector(dense [][]float64) []entity.Vector {
return slices.Transform(dense, func(a []float64) entity.Vector {
r := make([]float32, len(a))
for i := 0; i < len(a); i++ {
r[i] = float32(a[i])
}
return entity.FloatVector(r)
})
}
func convertSparse(sparse []map[int]float64) ([]entity.SparseEmbedding, error) {
r := make([]entity.SparseEmbedding, 0, len(sparse))
for _, s := range sparse {
ks := make([]uint32, 0, len(s))
vs := make([]float32, 0, len(s))
for k, v := range s {
ks = append(ks, uint32(k))
vs = append(vs, float32(v))
}
se, err := entity.NewSliceSparseEmbedding(ks, vs)
if err != nil {
return nil, err
}
r = append(r, se)
}
return r, nil
}
func convertMilvusSparseVector(sparse []map[int]float64) ([]entity.Vector, error) {
r := make([]entity.Vector, 0, len(sparse))
for _, s := range sparse {
ks := make([]uint32, 0, len(s))
vs := make([]float32, 0, len(s))
for k, v := range s {
ks = append(ks, uint32(k))
vs = append(vs, float32(v))
}
se, err := entity.NewSliceSparseEmbedding(ks, vs)
if err != nil {
return nil, err
}
r = append(r, se)
}
return r, nil
}