chore: import upstream snapshot with attribution

backend/infra/document/parser/impl/impl.go

@@ -0,0 +1,54 @@
+/*
+ * 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 impl
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/coze-dev/coze-studio/backend/api/model/admin/config"
+	"github.com/coze-dev/coze-studio/backend/bizpkg/llm/modelbuilder"
+	"github.com/coze-dev/coze-studio/backend/infra/document/ocr"
+	"github.com/coze-dev/coze-studio/backend/infra/document/parser"
+	"github.com/coze-dev/coze-studio/backend/infra/document/parser/impl/builtin"
+	"github.com/coze-dev/coze-studio/backend/infra/document/parser/impl/ppstructure"
+	"github.com/coze-dev/coze-studio/backend/infra/storage"
+)
+
+type Manager = parser.Manager
+
+func New(ctx context.Context, conf *config.KnowledgeConfig, storage storage.Storage, ocr ocr.OCR) (Manager, error) {
+	imageAnnotationModel, _, err := modelbuilder.GetBuiltinChatModel(ctx, "IA_")
+	if err != nil {
+		return nil, fmt.Errorf("get builtin chat model failed, err=%w", err)
+	}
+
+	var parserManager parser.Manager
+	switch conf.ParserConfig.Type {
+	case config.ParserType_Paddleocr:
+		client := &http.Client{}
+		apiConfig := &ppstructure.APIConfig{
+			Client: client,
+			URL:    conf.ParserConfig.PaddleocrStructureAPIURL,
+		}
+		parserManager = ppstructure.NewManager(apiConfig, ocr, storage, imageAnnotationModel)
+	default:
+		parserManager = builtin.NewManager(storage, ocr, imageAnnotationModel)
+	}
+
+	return parserManager, nil
+}