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94 lines
2.5 KiB
Go
94 lines
2.5 KiB
Go
/*
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* Copyright 2024 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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"os"
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"strings"
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"github.com/cloudwego/eino-ext/components/retriever/volc_vikingdb"
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"github.com/cloudwego/eino/components/retriever"
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"github.com/cloudwego/eino/flow/retriever/router"
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"github.com/cloudwego/eino-examples/internal/logs"
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)
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func main() {
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vikingDBHost := os.Getenv("VIKING_DB_HOST")
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vikingDBRegion := os.Getenv("VIKING_DB_REGION")
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vikingDBAK := os.Getenv("VIKING_DB_AK")
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vikingDBSK := os.Getenv("VIKING_DB_SK")
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ctx := context.Background()
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vk, err := newVikingDBRetriever(ctx, vikingDBHost, vikingDBRegion, vikingDBAK, vikingDBSK)
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if err != nil {
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logs.Errorf("newVikingDBRetriever failed, err=%v", err)
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return
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}
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// route retriever by custom router
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mqr, err := router.NewRetriever(ctx, &router.Config{
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Retrievers: map[string]retriever.Retriever{
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"1": vk,
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"2": vk,
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"3": vk,
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},
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Router: func(ctx context.Context, query string) ([]string, error) {
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var ret []string
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if strings.Contains(query, "1") {
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ret = append(ret, "1")
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}
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if strings.Contains(query, "2") {
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ret = append(ret, "2")
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}
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if strings.Contains(query, "3") {
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ret = append(ret, "3")
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}
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return ret, nil
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},
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FusionFunc: nil, // use default rrf
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})
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if err != nil {
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logs.Errorf("NewMultiQueryRetriever failed, err=%v", err)
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return
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}
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resp, err := mqr.Retrieve(ctx, "tourist attraction")
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if err != nil {
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logs.Errorf("Multi-Query Retrieve failed, err=%v", err)
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return
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}
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logs.Infof("Router Retrieve success, docs=%v", resp)
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}
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func newVikingDBRetriever(ctx context.Context, host, region, ak, sk string) (retriever.Retriever, error) {
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baseTopK := 5
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return volc_vikingdb.NewRetriever(ctx, &volc_vikingdb.RetrieverConfig{
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Host: host,
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Region: region,
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AK: ak,
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SK: sk,
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EmbeddingConfig: volc_vikingdb.EmbeddingConfig{
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UseBuiltin: true,
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},
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Index: "3", // index version, replace if needed
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TopK: &baseTopK,
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})
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}
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