coze-studio/backend/domain/workflow/internal/nodes/knowledge/knowledge_retrieve.go

88 lines
2.2 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 knowledge
import (
"context"
"errors"
"github.com/coze-dev/coze-studio/backend/domain/workflow/crossdomain/knowledge"
"github.com/coze-dev/coze-studio/backend/pkg/lang/slices"
)
const outputList = "outputList"
type RetrieveConfig struct {
KnowledgeIDs []int64
RetrievalStrategy *knowledge.RetrievalStrategy
Retriever knowledge.KnowledgeOperator
}
type KnowledgeRetrieve struct {
config *RetrieveConfig
}
func NewKnowledgeRetrieve(_ context.Context, cfg *RetrieveConfig) (*KnowledgeRetrieve, error) {
if cfg == nil {
return nil, errors.New("cfg is required")
}
if cfg.Retriever == nil {
return nil, errors.New("retriever is required")
}
if len(cfg.KnowledgeIDs) == 0 {
return nil, errors.New("knowledgeI ids is required")
}
if cfg.RetrievalStrategy == nil {
return nil, errors.New("retrieval strategy is required")
}
return &KnowledgeRetrieve{
config: cfg,
}, nil
}
func (kr *KnowledgeRetrieve) Retrieve(ctx context.Context, input map[string]any) (map[string]any, error) {
query, ok := input["Query"].(string)
if !ok {
return nil, errors.New("capital query key is required")
}
req := &knowledge.RetrieveRequest{
Query: query,
KnowledgeIDs: kr.config.KnowledgeIDs,
RetrievalStrategy: kr.config.RetrievalStrategy,
}
response, err := kr.config.Retriever.Retrieve(ctx, req)
if err != nil {
return nil, err
}
result := make(map[string]any)
result[outputList] = slices.Transform(response.Slices, func(m *knowledge.Slice) any {
return map[string]any{
"documentId": m.DocumentID,
"output": m.Output,
}
})
return result, nil
}