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

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

@@ -0,0 +1,57 @@
+/*
+ * 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 (
+	"fmt"
+
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/crossdomain/knowledge"
+)
+
+func convertParsingType(p string) (knowledge.ParseMode, error) {
+	switch p {
+	case "fast":
+		return knowledge.FastParseMode, nil
+	case "accurate":
+		return knowledge.AccurateParseMode, nil
+	default:
+		return "", fmt.Errorf("invalid parsingType: %s", p)
+	}
+}
+
+func convertChunkType(p string) (knowledge.ChunkType, error) {
+	switch p {
+	case "custom":
+		return knowledge.ChunkTypeCustom, nil
+	case "default":
+		return knowledge.ChunkTypeDefault, nil
+	default:
+		return "", fmt.Errorf("invalid ChunkType: %s", p)
+	}
+}
+func convertRetrievalSearchType(s int64) (knowledge.SearchType, error) {
+	switch s {
+	case 0:
+		return knowledge.SearchTypeSemantic, nil
+	case 1:
+		return knowledge.SearchTypeHybrid, nil
+	case 20:
+		return knowledge.SearchTypeFullText, nil
+	default:
+		return "", fmt.Errorf("invalid RetrievalSearchType %v", s)
+	}
+}