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124 lines
3.1 KiB
Go
124 lines
3.1 KiB
Go
/*
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* Copyright 2025 CloudWeGo 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 main
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import (
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"context"
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"slices"
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"github.com/cloudwego/eino-ext/components/model/ark"
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"github.com/cloudwego/eino/components/model"
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"github.com/cloudwego/eino/schema"
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)
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func NewCachedARKChatModel(ctx context.Context, cfg *ark.ChatModelConfig) (*CachedARKChatModel, error) {
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cm, err := ark.NewChatModel(ctx, cfg)
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if err != nil {
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return nil, err
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}
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return &CachedARKChatModel{
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ChatModel: cm,
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}, nil
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}
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type CachedARKChatModel struct {
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ChatModel model.ToolCallingChatModel
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}
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const (
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cacheOptionCtxKey = "ark-cache-option"
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)
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func WithCacheCtx(ctx context.Context, cache *ark.CacheOption) context.Context {
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return context.WithValue(ctx, cacheOptionCtxKey, cache)
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}
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func GetCacheCtx(ctx context.Context) *ark.CacheOption {
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cache, ok := ctx.Value(cacheOptionCtxKey).(*ark.CacheOption)
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if !ok {
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return nil
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}
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return cache
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}
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func (cm *CachedARKChatModel) Generate(ctx context.Context, in []*schema.Message,
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opts ...model.Option) (outMsg *schema.Message, err error) {
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opts_ := opts
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in_ := in
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cacheOption := GetCacheCtx(ctx)
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if cacheOption != nil && cacheOption.ContextID != nil {
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opts_ = slices.Clone(opts)
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opts_ = append(opts_, ark.WithCache(cacheOption), model.WithTools([]*schema.ToolInfo{}))
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in_ = in[len(in)-1:]
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}
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outMsg, err = cm.ChatModel.Generate(ctx, in_, opts_...)
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if err != nil {
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return nil, err
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}
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contextID, ok := ark.GetContextID(outMsg)
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if ok {
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cacheOption.ContextID = &contextID
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}
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return outMsg, nil
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}
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func (cm *CachedARKChatModel) Stream(ctx context.Context, in []*schema.Message, opts ...model.Option) (
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outStream *schema.StreamReader[*schema.Message], err error) {
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opts_ := opts
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in_ := in
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cacheOption, ok := ctx.Value(cacheOptionCtxKey).(*ark.CacheOption)
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if ok && cacheOption != nil && cacheOption.ContextID != nil {
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opts_ = slices.Clone(opts)
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opts_ = append(opts_, ark.WithCache(cacheOption), model.WithTools([]*schema.ToolInfo{}))
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in_ = in[len(in)-1:]
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}
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outStream, err = cm.ChatModel.Stream(ctx, in_, opts_...)
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if err != nil {
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return nil, err
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}
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outStream_ := schema.StreamReaderWithConvert(outStream, func(msg *schema.Message) (*schema.Message, error) {
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contextID, ok := ark.GetContextID(msg)
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if ok {
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cacheOption.ContextID = &contextID
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}
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return msg, nil
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})
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return outStream_, nil
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}
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func (cm *CachedARKChatModel) WithTools(tools []*schema.ToolInfo) (model.ToolCallingChatModel, error) {
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m, err := cm.ChatModel.WithTools(tools)
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if err != nil {
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return nil, err
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}
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ncm := *cm
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ncm.ChatModel = m
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return &ncm, nil
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}
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