99 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			99 lines
		
	
	
		
			3.4 KiB
		
	
	
	
		
			Go
		
	
	
	
| /*
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|  * Copyright 2025 coze-dev Authors
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|  *
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|  * Licensed under the Apache License, Version 2.0 (the "License");
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|  * you may not use this file except in compliance with the License.
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|  * You may obtain a copy of the License at
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|  *
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|  *     http://www.apache.org/licenses/LICENSE-2.0
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|  *
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|  * Unless required by applicable law or agreed to in writing, software
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|  * distributed under the License is distributed on an "AS IS" BASIS,
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|  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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|  * See the License for the specific language governing permissions and
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|  * limitations under the License.
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|  */
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| 
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| package json
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| 
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| import (
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| 	"context"
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| 	"fmt"
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| 
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| 	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity"
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| 	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
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| 	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/canvas/convert"
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| 	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/nodes"
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| 	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/schema"
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| 	"github.com/coze-dev/coze-studio/backend/pkg/sonic"
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| )
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| 
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| const (
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| 	InputKeySerialization  = "input"
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| 	OutputKeySerialization = "output"
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| )
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| 
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| // SerializationConfig is the Config type for NodeTypeJsonSerialization.
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| // Each Node Type should have its own designated Config type,
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| // which should implement NodeAdaptor and NodeBuilder.
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| // NOTE: we didn't define any fields for this type,
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| // because this node is simple, we doesn't need to extract any SPECIFIC piece of info
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| // from frontend Node. In other cases we would need to do it, such as LLM's model configs.
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| type SerializationConfig struct {
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| 	// you can define ANY number of fields here,
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| 	// as long as these fields are SERIALIZABLE and EXPORTED.
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| 	// to store specific info extracted from frontend node.
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| 	// e.g.
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| 	// - LLM model configs
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| 	// - conditional expressions
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| 	// - fixed input fields such as MaxBatchSize
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| }
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| 
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| // Adapt provides conversion from Node to NodeSchema.
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| // NOTE: in this specific case, we don't need AdaptOption.
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| func (s *SerializationConfig) Adapt(_ context.Context, n *vo.Node, _ ...nodes.AdaptOption) (*schema.NodeSchema, error) {
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| 	ns := &schema.NodeSchema{
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| 		Key:     vo.NodeKey(n.ID),
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| 		Type:    entity.NodeTypeJsonSerialization,
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| 		Name:    n.Data.Meta.Title,
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| 		Configs: s, // remember to set the Node's Config Type to NodeSchema as well
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| 	}
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| 
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| 	// this sets input fields' type and mapping info
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| 	if err := convert.SetInputsForNodeSchema(n, ns); err != nil {
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| 		return nil, err
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| 	}
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| 
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| 	// this set output fields' type info
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| 	if err := convert.SetOutputTypesForNodeSchema(n, ns); err != nil {
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| 		return nil, err
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| 	}
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| 
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| 	return ns, nil
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| }
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| 
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| func (s *SerializationConfig) Build(_ context.Context, _ *schema.NodeSchema, _ ...schema.BuildOption) (
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| 	any, error) {
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| 	return &Serializer{}, nil
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| }
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| 
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| // Serializer is the actual node implementation.
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| type Serializer struct {
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| 	// here can holds ANY data required for node execution
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| }
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| 
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| // Invoke implements the InvokableNode interface.
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| func (js *Serializer) Invoke(_ context.Context, input map[string]any) (map[string]any, error) {
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| 	// Directly use the input map for serialization
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| 	if input == nil {
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| 		return nil, fmt.Errorf("input data for serialization cannot be nil")
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| 	}
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| 
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| 	originData := input[InputKeySerialization]
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| 	serializedData, err := sonic.Marshal(originData) // Serialize the entire input map
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| 	if err != nil {
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| 		return nil, fmt.Errorf("serialization error: %w", err)
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| 	}
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| 	return map[string]any{OutputKeySerialization: string(serializedData)}, nil
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| }
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