refactor: how to add a node type in workflow (#558)

backend/domain/workflow/internal/nodes/knowledge/knowledge_retrieve.go

@@ -20,7 +20,14 @@ import (
 	"context"
 	"errors"
 
+	"github.com/spf13/cast"
+
 	"github.com/coze-dev/coze-studio/backend/domain/workflow/crossdomain/knowledge"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/canvas/convert"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/nodes"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/schema"
 	"github.com/coze-dev/coze-studio/backend/pkg/lang/slices"
 )
 
@@ -29,37 +36,136 @@ const outputList = "outputList"
 type RetrieveConfig struct {
 	KnowledgeIDs      []int64
 	RetrievalStrategy *knowledge.RetrievalStrategy
-	Retriever         knowledge.KnowledgeOperator
 }
 
-type KnowledgeRetrieve struct {
-	config *RetrieveConfig
+func (r *RetrieveConfig) Adapt(_ context.Context, n *vo.Node, _ ...nodes.AdaptOption) (*schema.NodeSchema, error) {
+	ns := &schema.NodeSchema{
+		Key:     vo.NodeKey(n.ID),
+		Type:    entity.NodeTypeKnowledgeRetriever,
+		Name:    n.Data.Meta.Title,
+		Configs: r,
+	}
+
+	inputs := n.Data.Inputs
+	datasetListInfoParam := inputs.DatasetParam[0]
+	datasetIDs := datasetListInfoParam.Input.Value.Content.([]any)
+	knowledgeIDs := make([]int64, 0, len(datasetIDs))
+	for _, id := range datasetIDs {
+		k, err := cast.ToInt64E(id)
+		if err != nil {
+			return nil, err
+		}
+		knowledgeIDs = append(knowledgeIDs, k)
+	}
+	r.KnowledgeIDs = knowledgeIDs
+
+	retrievalStrategy := &knowledge.RetrievalStrategy{}
+
+	var getDesignatedParamContent = func(name string) (any, bool) {
+		for _, param := range inputs.DatasetParam {
+			if param.Name == name {
+				return param.Input.Value.Content, true
+			}
+		}
+		return nil, false
+	}
+
+	if content, ok := getDesignatedParamContent("topK"); ok {
+		topK, err := cast.ToInt64E(content)
+		if err != nil {
+			return nil, err
+		}
+		retrievalStrategy.TopK = &topK
+	}
+
+	if content, ok := getDesignatedParamContent("useRerank"); ok {
+		useRerank, err := cast.ToBoolE(content)
+		if err != nil {
+			return nil, err
+		}
+		retrievalStrategy.EnableRerank = useRerank
+	}
+
+	if content, ok := getDesignatedParamContent("useRewrite"); ok {
+		useRewrite, err := cast.ToBoolE(content)
+		if err != nil {
+			return nil, err
+		}
+		retrievalStrategy.EnableQueryRewrite = useRewrite
+	}
+
+	if content, ok := getDesignatedParamContent("isPersonalOnly"); ok {
+		isPersonalOnly, err := cast.ToBoolE(content)
+		if err != nil {
+			return nil, err
+		}
+		retrievalStrategy.IsPersonalOnly = isPersonalOnly
+	}
+
+	if content, ok := getDesignatedParamContent("useNl2sql"); ok {
+		useNl2sql, err := cast.ToBoolE(content)
+		if err != nil {
+			return nil, err
+		}
+		retrievalStrategy.EnableNL2SQL = useNl2sql
+	}
+
+	if content, ok := getDesignatedParamContent("minScore"); ok {
+		minScore, err := cast.ToFloat64E(content)
+		if err != nil {
+			return nil, err
+		}
+		retrievalStrategy.MinScore = &minScore
+	}
+
+	if content, ok := getDesignatedParamContent("strategy"); ok {
+		strategy, err := cast.ToInt64E(content)
+		if err != nil {
+			return nil, err
+		}
+		searchType, err := convertRetrievalSearchType(strategy)
+		if err != nil {
+			return nil, err
+		}
+		retrievalStrategy.SearchType = searchType
+	}
+
+	r.RetrievalStrategy = retrievalStrategy
+
+	if err := convert.SetInputsForNodeSchema(n, ns); err != nil {
+		return nil, err
+	}
+
+	if err := convert.SetOutputTypesForNodeSchema(n, ns); err != nil {
+		return nil, err
+	}
+
+	return ns, nil
 }
 
-func NewKnowledgeRetrieve(_ context.Context, cfg *RetrieveConfig) (*KnowledgeRetrieve, error) {
-	if cfg == nil {
-		return nil, errors.New("cfg is required")
+func (r *RetrieveConfig) Build(_ context.Context, _ *schema.NodeSchema, _ ...schema.BuildOption) (any, error) {
+	if len(r.KnowledgeIDs) == 0 {
+		return nil, errors.New("knowledge ids are 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 {
+	if r.RetrievalStrategy == nil {
 		return nil, errors.New("retrieval strategy is required")
 	}
 
-	return &KnowledgeRetrieve{
-		config: cfg,
+	return &Retrieve{
+		knowledgeIDs:      r.KnowledgeIDs,
+		retrievalStrategy: r.RetrievalStrategy,
+		retriever:         knowledge.GetKnowledgeOperator(),
 	}, nil
 }
 
-func (kr *KnowledgeRetrieve) Retrieve(ctx context.Context, input map[string]any) (map[string]any, error) {
+type Retrieve struct {
+	knowledgeIDs      []int64
+	retrievalStrategy *knowledge.RetrievalStrategy
+	retriever         knowledge.KnowledgeOperator
+}
 
+func (kr *Retrieve) Invoke(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")
@@ -67,11 +173,11 @@ func (kr *KnowledgeRetrieve) Retrieve(ctx context.Context, input map[string]any)
 
 	req := &knowledge.RetrieveRequest{
 		Query:             query,
-		KnowledgeIDs:      kr.config.KnowledgeIDs,
-		RetrievalStrategy: kr.config.RetrievalStrategy,
+		KnowledgeIDs:      kr.knowledgeIDs,
+		RetrievalStrategy: kr.retrievalStrategy,
 	}
 
-	response, err := kr.config.Retriever.Retrieve(ctx, req)
+	response, err := kr.retriever.Retrieve(ctx, req)
 	if err != nil {
 		return nil, err
 	}