115 lines
3.4 KiB
Go
115 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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package agentflow
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import (
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"context"
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"fmt"
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"reflect"
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"strconv"
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"github.com/cloudwego/eino/components/tool"
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"github.com/cloudwego/eino/components/tool/utils"
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"github.com/cloudwego/eino/schema"
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"github.com/getkin/kin-openapi/openapi3"
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"github.com/coze-dev/coze-studio/backend/api/model/ocean/cloud/bot_common"
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"github.com/coze-dev/coze-studio/backend/crossdomain/contract/crossknowledge"
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knowledgeEntity "github.com/coze-dev/coze-studio/backend/domain/knowledge/entity"
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)
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const (
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knowledgeToolName = "recallKnowledge"
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knowledgeDesc = `Provides multiple retrieval methods to search for content fragments stored in the knowledge base, helping the large model obtain more accurate and reliable context information`
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)
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type knowledgeConfig struct {
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knowledgeInfos []*knowledgeEntity.Knowledge
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knowledgeConfig *bot_common.Knowledge
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Input *schema.Message
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GetHistory func() []*schema.Message
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}
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func newKnowledgeTool(ctx context.Context, conf *knowledgeConfig) (tool.InvokableTool, error) {
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kl := &knowledgeTool{
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knowledgeConfig: conf.knowledgeConfig,
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Input: conf.Input,
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GetHistory: conf.GetHistory,
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}
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customTagsFn := func(name string, t reflect.Type, tag reflect.StructTag,
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schema *openapi3.Schema,
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) error {
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// Process KnowledgeIDs field only
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if name != "KnowledgeIDs" {
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return nil
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}
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// Build knowledge base description
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desc := "Available Knowledge Base List as format knowledge_id: knowledge_name - knowledge_description: \n"
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for _, k := range conf.knowledgeInfos {
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desc += fmt.Sprintf("- %d: %s - %s\n", k.ID, k.Name, k.Description)
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}
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schema.Type = openapi3.TypeArray
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schema.Items = &openapi3.SchemaRef{
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Value: &openapi3.Schema{
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Type: openapi3.TypeInteger,
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},
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}
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// 设置字段描述和枚举值
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schema.Description = desc
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schema.Enum = make([]interface{}, 0, len(conf.knowledgeInfos))
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for _, k := range conf.knowledgeInfos {
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schema.Enum = append(schema.Enum, strconv.FormatInt(k.ID, 10))
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}
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return nil
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}
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return utils.InferTool(knowledgeToolName, knowledgeDesc, kl.Retrieve, utils.WithSchemaCustomizer(customTagsFn))
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}
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type RetrieveRequest struct {
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KnowledgeIDs []int64 `json:"knowledge_ids" jsonschema:"description="`
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}
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type knowledgeTool struct {
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knowledgeConfig *bot_common.Knowledge
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Input *schema.Message
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GetHistory func() []*schema.Message
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}
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func (k *knowledgeTool) Retrieve(ctx context.Context, req *RetrieveRequest) ([]*schema.Document, error) {
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rr, err := genKnowledgeRequest(ctx, req.KnowledgeIDs, k.knowledgeConfig, k.Input.Content, k.GetHistory())
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if err != nil {
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return nil, err
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}
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resp, err := crossknowledge.DefaultSVC().Retrieve(ctx, rr)
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if err != nil {
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return nil, err
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}
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docs, err := convertDocument(ctx, resp.RetrieveSlices)
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if err != nil {
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return nil, err
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}
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return docs, nil
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}
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