feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/workflow/internal/nodes/json/json_serialization.go

@@ -0,0 +1,65 @@
+/*
+ * 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 json
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
+	"github.com/coze-dev/coze-studio/backend/pkg/sonic"
+)
+
+const (
+	InputKeySerialization  = "input"
+	OutputKeySerialization = "output"
+)
+
+type SerializationConfig struct {
+	InputTypes map[string]*vo.TypeInfo
+}
+
+type JsonSerializer struct {
+	config *SerializationConfig
+}
+
+func NewJsonSerializer(_ context.Context, cfg *SerializationConfig) (*JsonSerializer, error) {
+	if cfg == nil {
+		return nil, fmt.Errorf("config required")
+	}
+	if cfg.InputTypes == nil {
+		return nil, fmt.Errorf("InputTypes is required for serialization")
+	}
+
+	return &JsonSerializer{
+		config: cfg,
+	}, nil
+}
+
+func (js *JsonSerializer) Invoke(_ context.Context, input map[string]any) (map[string]any, error) {
+	// Directly use the input map for serialization
+	if input == nil {
+		return nil, fmt.Errorf("input data for serialization cannot be nil")
+	}
+
+	originData := input[InputKeySerialization]
+	serializedData, err := sonic.Marshal(originData) // Serialize the entire input map
+	if err != nil {
+		return nil, fmt.Errorf("serialization error: %w", err)
+	}
+	return map[string]any{OutputKeySerialization: string(serializedData)}, nil
+}