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/*
* 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 appinfra
import (
"context"
"encoding/json"
"fmt"
"net/http"
"os"
"path/filepath"
"strconv"
"strings"
"time"
"google.golang.org/genai"
"gorm.io/gorm"
"github.com/cloudwego/eino-ext/components/embedding/gemini"
"github.com/cloudwego/eino-ext/components/embedding/ollama"
"github.com/cloudwego/eino-ext/components/embedding/openai"
"github.com/cloudwego/eino/components/prompt"
"github.com/cloudwego/eino/schema"
"github.com/milvus-io/milvus/client/v2/milvusclient"
"github.com/volcengine/volc-sdk-golang/service/visual"
"github.com/coze-dev/coze-studio/backend/infra/contract/cache"
"github.com/coze-dev/coze-studio/backend/infra/contract/chatmodel"
"github.com/coze-dev/coze-studio/backend/infra/contract/coderunner"
"github.com/coze-dev/coze-studio/backend/infra/contract/document/nl2sql"
"github.com/coze-dev/coze-studio/backend/infra/contract/document/ocr"
"github.com/coze-dev/coze-studio/backend/infra/contract/document/parser"
"github.com/coze-dev/coze-studio/backend/infra/contract/document/rerank"
"github.com/coze-dev/coze-studio/backend/infra/contract/document/searchstore"
"github.com/coze-dev/coze-studio/backend/infra/contract/embedding"
"github.com/coze-dev/coze-studio/backend/infra/contract/imagex"
"github.com/coze-dev/coze-studio/backend/infra/contract/messages2query"
"github.com/coze-dev/coze-studio/backend/infra/contract/modelmgr"
"github.com/coze-dev/coze-studio/backend/infra/impl/cache/redis"
"github.com/coze-dev/coze-studio/backend/infra/impl/coderunner/direct"
"github.com/coze-dev/coze-studio/backend/infra/impl/coderunner/sandbox"
builtinNL2SQL "github.com/coze-dev/coze-studio/backend/infra/impl/document/nl2sql/builtin"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/ocr/ppocr"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/ocr/veocr"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/parser/builtin"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/parser/ppstructure"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/rerank/rrf"
vikingReranker "github.com/coze-dev/coze-studio/backend/infra/impl/document/rerank/vikingdb"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/searchstore/elasticsearch"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/searchstore/milvus"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/searchstore/oceanbase"
"github.com/coze-dev/coze-studio/backend/infra/impl/document/searchstore/vikingdb"
"github.com/coze-dev/coze-studio/backend/infra/impl/embedding/ark"
embeddingHttp "github.com/coze-dev/coze-studio/backend/infra/impl/embedding/http"
"github.com/coze-dev/coze-studio/backend/infra/impl/embedding/wrap"
"github.com/coze-dev/coze-studio/backend/infra/impl/es"
"github.com/coze-dev/coze-studio/backend/infra/impl/eventbus"
"github.com/coze-dev/coze-studio/backend/infra/impl/idgen"
"github.com/coze-dev/coze-studio/backend/infra/impl/imagex/veimagex"
builtinM2Q "github.com/coze-dev/coze-studio/backend/infra/impl/messages2query/builtin"
"github.com/coze-dev/coze-studio/backend/infra/impl/mysql"
oceanbaseClient "github.com/coze-dev/coze-studio/backend/infra/impl/oceanbase"
"github.com/coze-dev/coze-studio/backend/infra/impl/storage"
"github.com/coze-dev/coze-studio/backend/pkg/lang/conv"
"github.com/coze-dev/coze-studio/backend/pkg/lang/ptr"
"github.com/coze-dev/coze-studio/backend/pkg/logs"
"github.com/coze-dev/coze-studio/backend/types/consts"
)
type AppDependencies struct {
DB *gorm.DB
CacheCli cache.Cmdable
IDGenSVC idgen.IDGenerator
ESClient es.Client
ImageXClient imagex.ImageX
TOSClient storage.Storage
ResourceEventProducer eventbus.Producer
AppEventProducer eventbus.Producer
KnowledgeEventProducer eventbus.Producer
ModelMgr modelmgr.Manager
CodeRunner coderunner.Runner
OCR ocr.OCR
ParserManager parser.Manager
SearchStoreManagers []searchstore.Manager
Reranker rerank.Reranker
Rewriter messages2query.MessagesToQuery
NL2SQL nl2sql.NL2SQL
WorkflowBuildInChatModel chatmodel.BaseChatModel
}
func Init(ctx context.Context) (*AppDependencies, error) {
deps := &AppDependencies{}
var err error
deps.TOSClient, err = initTOS(ctx)
if err != nil {
return nil, fmt.Errorf("init tos client failed, err=%w", err)
}
deps.DB, err = mysql.New()
if err != nil {
return nil, fmt.Errorf("init db failed, err=%w", err)
}
deps.CacheCli = redis.New()
deps.IDGenSVC, err = idgen.New(deps.CacheCli)
if err != nil {
return nil, fmt.Errorf("init id gen svc failed, err=%w", err)
}
deps.ESClient, err = es.New()
if err != nil {
return nil, fmt.Errorf("init es client failed, err=%w", err)
}
deps.ImageXClient, err = initImageX(ctx)
if err != nil {
return nil, fmt.Errorf("init imagex client failed, err=%w", err)
}
deps.ResourceEventProducer, err = initResourceEventBusProducer()
if err != nil {
return nil, fmt.Errorf("init resource event bus producer failed, err=%w", err)
}
deps.AppEventProducer, err = initAppEventProducer()
if err != nil {
return nil, fmt.Errorf("init app event producer failed, err=%w", err)
}
deps.KnowledgeEventProducer, err = initKnowledgeEventBusProducer()
if err != nil {
return nil, fmt.Errorf("init knowledge event bus producer failed, err=%w", err)
}
deps.Reranker = initReranker()
deps.Rewriter, err = initRewriter(ctx)
if err != nil {
return nil, fmt.Errorf("init rewriter failed, err=%w", err)
}
deps.NL2SQL, err = initNL2SQL(ctx)
if err != nil {
return nil, fmt.Errorf("init nl2sql failed, err=%w", err)
}
deps.ModelMgr, err = initModelMgr()
if err != nil {
return nil, fmt.Errorf("init model manager failed, err=%w", err)
}
deps.CodeRunner = initCodeRunner()
deps.OCR = initOCR()
imageAnnotationModel, _, err := getBuiltinChatModel(ctx, "IA_")
if err != nil {
return nil, fmt.Errorf("get builtin chat model failed, err=%w", err)
}
var ok bool
deps.WorkflowBuildInChatModel, ok, err = getBuiltinChatModel(ctx, "WKR_")
if err != nil {
return nil, fmt.Errorf("get workflow builtin chat model failed, err=%w", err)
}
if !ok {
logs.CtxWarnf(ctx, "workflow builtin chat model for knowledge recall not configured")
}
deps.ParserManager, err = initParserManager(deps.TOSClient, deps.OCR, imageAnnotationModel)
if err != nil {
return nil, fmt.Errorf("init parser manager failed, err=%w", err)
}
deps.SearchStoreManagers, err = initSearchStoreManagers(ctx, deps.ESClient)
if err != nil {
return nil, fmt.Errorf("init search store managers failed, err=%w", err)
}
return deps, nil
}
func initSearchStoreManagers(ctx context.Context, es es.Client) ([]searchstore.Manager, error) {
// es full text search
esSearchstoreManager := elasticsearch.NewManager(&elasticsearch.ManagerConfig{Client: es})
// vector search
mgr, err := getVectorStore(ctx)
if err != nil {
return nil, fmt.Errorf("init vector store failed, err=%w", err)
}
return []searchstore.Manager{esSearchstoreManager, mgr}, nil
}
func initReranker() rerank.Reranker {
rerankerType := os.Getenv("RERANK_TYPE")
switch rerankerType {
case "vikingdb":
return vikingReranker.NewReranker(getVikingRerankerConfig())
case "rrf":
return rrf.NewRRFReranker(0)
default:
return rrf.NewRRFReranker(0)
}
}
func getVikingRerankerConfig() *vikingReranker.Config {
return &vikingReranker.Config{
AK: os.Getenv("VIKINGDB_RERANK_AK"),
SK: os.Getenv("VIKINGDB_RERANK_SK"),
Domain: os.Getenv("VIKINGDB_RERANK_HOST"),
Region: os.Getenv("VIKINGDB_RERANK_REGION"),
Model: os.Getenv("VIKINGDB_RERANK_MODEL"),
}
}
func initRewriter(ctx context.Context) (messages2query.MessagesToQuery, error) {
rewriterChatModel, _, err := getBuiltinChatModel(ctx, "M2Q_")
if err != nil {
return nil, err
}
filePath := filepath.Join(getWorkingDirectory(), "resources/conf/prompt/messages_to_query_template_jinja2.json")
rewriterTemplate, err := readJinja2PromptTemplate(filePath)
if err != nil {
return nil, err
}
rewriter, err := builtinM2Q.NewMessagesToQuery(ctx, rewriterChatModel, rewriterTemplate)
if err != nil {
return nil, err
}
return rewriter, nil
}
func getWorkingDirectory() string {
root, err := os.Getwd()
if err != nil {
logs.Warnf("[InitConfig] Failed to get current working directory: %v", err)
root = os.Getenv("PWD")
}
return root
}
func readJinja2PromptTemplate(jsonFilePath string) (prompt.ChatTemplate, error) {
b, err := os.ReadFile(jsonFilePath)
if err != nil {
return nil, err
}
var m2qMessages []*schema.Message
if err = json.Unmarshal(b, &m2qMessages); err != nil {
return nil, err
}
tpl := make([]schema.MessagesTemplate, len(m2qMessages))
for i := range m2qMessages {
tpl[i] = m2qMessages[i]
}
return prompt.FromMessages(schema.Jinja2, tpl...), nil
}
func initNL2SQL(ctx context.Context) (nl2sql.NL2SQL, error) {
n2sChatModel, _, err := getBuiltinChatModel(ctx, "NL2SQL_")
if err != nil {
return nil, err
}
filePath := filepath.Join(getWorkingDirectory(), "resources/conf/prompt/nl2sql_template_jinja2.json")
n2sTemplate, err := readJinja2PromptTemplate(filePath)
if err != nil {
return nil, err
}
n2s, err := builtinNL2SQL.NewNL2SQL(ctx, n2sChatModel, n2sTemplate)
if err != nil {
return nil, err
}
return n2s, nil
}
func initImageX(ctx context.Context) (imagex.ImageX, error) {
uploadComponentType := os.Getenv(consts.FileUploadComponentType)
if uploadComponentType != consts.FileUploadComponentTypeImagex {
return storage.NewImagex(ctx)
}
return veimagex.New(
os.Getenv(consts.VeImageXAK),
os.Getenv(consts.VeImageXSK),
os.Getenv(consts.VeImageXDomain),
os.Getenv(consts.VeImageXUploadHost),
os.Getenv(consts.VeImageXTemplate),
[]string{os.Getenv(consts.VeImageXServerID)},
)
}
func initTOS(ctx context.Context) (storage.Storage, error) {
return storage.New(ctx)
}
func initResourceEventBusProducer() (eventbus.Producer, error) {
nameServer := os.Getenv(consts.MQServer)
resourceEventBusProducer, err := eventbus.NewProducer(nameServer,
consts.RMQTopicResource, consts.RMQConsumeGroupResource, 1)
if err != nil {
return nil, fmt.Errorf("init resource producer failed, err=%w", err)
}
return resourceEventBusProducer, nil
}
func initAppEventProducer() (eventbus.Producer, error) {
nameServer := os.Getenv(consts.MQServer)
appEventProducer, err := eventbus.NewProducer(nameServer, consts.RMQTopicApp, consts.RMQConsumeGroupApp, 1)
if err != nil {
return nil, fmt.Errorf("init app producer failed, err=%w", err)
}
return appEventProducer, nil
}
func initKnowledgeEventBusProducer() (eventbus.Producer, error) {
nameServer := os.Getenv(consts.MQServer)
knowledgeProducer, err := eventbus.NewProducer(nameServer, consts.RMQTopicKnowledge, consts.RMQConsumeGroupKnowledge, 2)
if err != nil {
return nil, fmt.Errorf("init knowledge producer failed, err=%w", err)
}
return knowledgeProducer, nil
}
func initCodeRunner() coderunner.Runner {
switch typ := os.Getenv(consts.CodeRunnerType); typ {
case "sandbox":
getAndSplit := func(key string) []string {
v := os.Getenv(key)
if v == "" {
return nil
}
return strings.Split(v, ",")
}
config := &sandbox.Config{
AllowEnv: getAndSplit(consts.CodeRunnerAllowEnv),
AllowRead: getAndSplit(consts.CodeRunnerAllowRead),
AllowWrite: getAndSplit(consts.CodeRunnerAllowWrite),
AllowNet: getAndSplit(consts.CodeRunnerAllowNet),
AllowRun: getAndSplit(consts.CodeRunnerAllowRun),
AllowFFI: getAndSplit(consts.CodeRunnerAllowFFI),
NodeModulesDir: os.Getenv(consts.CodeRunnerNodeModulesDir),
TimeoutSeconds: 0,
MemoryLimitMB: 0,
}
if f, err := strconv.ParseFloat(os.Getenv(consts.CodeRunnerTimeoutSeconds), 64); err == nil {
config.TimeoutSeconds = f
} else {
config.TimeoutSeconds = 60.0
}
if mem, err := strconv.ParseInt(os.Getenv(consts.CodeRunnerMemoryLimitMB), 10, 64); err == nil {
config.MemoryLimitMB = mem
} else {
config.MemoryLimitMB = 100
}
return sandbox.NewRunner(config)
default:
return direct.NewRunner()
}
}
func initOCR() ocr.OCR {
var ocr ocr.OCR
switch os.Getenv(consts.OCRType) {
case "ve":
ocrAK := os.Getenv(consts.VeOCRAK)
ocrSK := os.Getenv(consts.VeOCRSK)
if ocrAK == "" || ocrSK == "" {
logs.Warnf("[ve_ocr] ak / sk not configured, ocr might not work well")
}
inst := visual.NewInstance()
inst.Client.SetAccessKey(ocrAK)
inst.Client.SetSecretKey(ocrSK)
ocr = veocr.NewOCR(&veocr.Config{Client: inst})
case "paddleocr":
url := os.Getenv(consts.PPOCRAPIURL)
client := &http.Client{}
ocr = ppocr.NewOCR(&ppocr.Config{Client: client, URL: url})
default:
// accept ocr not configured
}
return ocr
}
func initParserManager(storage storage.Storage, ocr ocr.OCR, imageAnnotationModel chatmodel.BaseChatModel) (parser.Manager, error) {
var parserManager parser.Manager
parserType := os.Getenv(consts.ParserType)
switch parserType {
case "builtin", "":
parserManager = builtin.NewManager(storage, ocr, imageAnnotationModel)
case "paddleocr":
url := os.Getenv(consts.PPStructureAPIURL)
client := &http.Client{}
apiConfig := &ppstructure.APIConfig{
Client: client,
URL: url,
}
parserManager = ppstructure.NewManager(apiConfig, ocr, storage, imageAnnotationModel)
default:
return nil, fmt.Errorf("parser type %s not supported", parserType)
}
return parserManager, nil
}
func getVectorStore(ctx context.Context) (searchstore.Manager, error) {
vsType := os.Getenv("VECTOR_STORE_TYPE")
switch vsType {
case "milvus":
ctx, cancel := context.WithTimeout(ctx, time.Second*5)
defer cancel()
milvusAddr := os.Getenv("MILVUS_ADDR")
user := os.Getenv("MILVUS_USER")
password := os.Getenv("MILVUS_PASSWORD")
mc, err := milvusclient.New(ctx, &milvusclient.ClientConfig{
Address: milvusAddr,
Username: user,
Password: password,
})
if err != nil {
return nil, fmt.Errorf("init milvus client failed, err=%w", err)
}
emb, err := getEmbedding(ctx)
if err != nil {
return nil, fmt.Errorf("init milvus embedding failed, err=%w", err)
}
mgr, err := milvus.NewManager(&milvus.ManagerConfig{
Client: mc,
Embedding: emb,
EnableHybrid: ptr.Of(true),
})
if err != nil {
return nil, fmt.Errorf("init milvus vector store failed, err=%w", err)
}
return mgr, nil
case "vikingdb":
var (
host = os.Getenv("VIKING_DB_HOST")
region = os.Getenv("VIKING_DB_REGION")
ak = os.Getenv("VIKING_DB_AK")
sk = os.Getenv("VIKING_DB_SK")
scheme = os.Getenv("VIKING_DB_SCHEME")
modelName = os.Getenv("VIKING_DB_MODEL_NAME")
)
if ak == "" || sk == "" {
return nil, fmt.Errorf("invalid vikingdb ak / sk")
}
if host == "" {
host = "api-vikingdb.volces.com"
}
if region == "" {
region = "cn-beijing"
}
if scheme == "" {
scheme = "https"
}
var embConfig *vikingdb.VikingEmbeddingConfig
if modelName != "" {
embName := vikingdb.VikingEmbeddingModelName(modelName)
if embName.Dimensions() == 0 {
return nil, fmt.Errorf("embedding model not support, model_name=%s", modelName)
}
embConfig = &vikingdb.VikingEmbeddingConfig{
UseVikingEmbedding: true,
EnableHybrid: embName.SupportStatus() == embedding.SupportDenseAndSparse,
ModelName: embName,
ModelVersion: embName.ModelVersion(),
DenseWeight: ptr.Of(0.2),
BuiltinEmbedding: nil,
}
} else {
builtinEmbedding, err := getEmbedding(ctx)
if err != nil {
return nil, fmt.Errorf("builtint embedding init failed, err=%w", err)
}
embConfig = &vikingdb.VikingEmbeddingConfig{
UseVikingEmbedding: false,
EnableHybrid: false,
BuiltinEmbedding: builtinEmbedding,
}
}
svc := vikingdb.NewVikingDBService(host, region, ak, sk, scheme)
mgr, err := vikingdb.NewManager(&vikingdb.ManagerConfig{
Service: svc,
IndexingConfig: nil, // use default config
EmbeddingConfig: embConfig,
})
if err != nil {
return nil, fmt.Errorf("init vikingdb manager failed, err=%w", err)
}
return mgr, nil
case "oceanbase":
emb, err := getEmbedding(ctx)
if err != nil {
return nil, fmt.Errorf("init oceanbase embedding failed, err=%w", err)
}
var (
host = os.Getenv("OCEANBASE_HOST")
port = os.Getenv("OCEANBASE_PORT")
user = os.Getenv("OCEANBASE_USER")
password = os.Getenv("OCEANBASE_PASSWORD")
database = os.Getenv("OCEANBASE_DATABASE")
)
if host == "" || port == "" || user == "" || password == "" || database == "" {
return nil, fmt.Errorf("invalid oceanbase configuration: host, port, user, password, database are required")
}
dsn := fmt.Sprintf("%s:%s@tcp(%s:%s)/%s?charset=utf8mb4&parseTime=True&loc=Local",
user, password, host, port, database)
client, err := oceanbaseClient.NewOceanBaseClient(dsn)
if err != nil {
return nil, fmt.Errorf("init oceanbase client failed, err=%w", err)
}
if err := client.InitDatabase(ctx); err != nil {
return nil, fmt.Errorf("init oceanbase database failed, err=%w", err)
}
// Get configuration from environment variables with defaults
batchSize := 100
if bs := os.Getenv("OCEANBASE_BATCH_SIZE"); bs != "" {
if bsInt, err := strconv.Atoi(bs); err == nil {
batchSize = bsInt
}
}
enableCache := true
if ec := os.Getenv("OCEANBASE_ENABLE_CACHE"); ec != "" {
if ecBool, err := strconv.ParseBool(ec); err == nil {
enableCache = ecBool
}
}
cacheTTL := 300 * time.Second
if ct := os.Getenv("OCEANBASE_CACHE_TTL"); ct != "" {
if ctInt, err := strconv.Atoi(ct); err == nil {
cacheTTL = time.Duration(ctInt) * time.Second
}
}
maxConnections := 100
if mc := os.Getenv("OCEANBASE_MAX_CONNECTIONS"); mc != "" {
if mcInt, err := strconv.Atoi(mc); err == nil {
maxConnections = mcInt
}
}
connTimeout := 30 * time.Second
if ct := os.Getenv("OCEANBASE_CONN_TIMEOUT"); ct != "" {
if ctInt, err := strconv.Atoi(ct); err == nil {
connTimeout = time.Duration(ctInt) * time.Second
}
}
managerConfig := &oceanbase.ManagerConfig{
Client: client,
Embedding: emb,
BatchSize: batchSize,
EnableCache: enableCache,
CacheTTL: cacheTTL,
MaxConnections: maxConnections,
ConnTimeout: connTimeout,
}
mgr, err := oceanbase.NewManager(managerConfig)
if err != nil {
return nil, fmt.Errorf("init oceanbase vector store failed, err=%w", err)
}
return mgr, nil
default:
return nil, fmt.Errorf("unexpected vector store type, type=%s", vsType)
}
}
func getEmbedding(ctx context.Context) (embedding.Embedder, error) {
var batchSize int
if bs, err := strconv.ParseInt(os.Getenv("EMBEDDING_MAX_BATCH_SIZE"), 10, 64); err != nil {
logs.CtxWarnf(ctx, "EMBEDDING_MAX_BATCH_SIZE not set / invalid, using default batchSize=100")
batchSize = 100
} else {
batchSize = int(bs)
}
var emb embedding.Embedder
switch os.Getenv("EMBEDDING_TYPE") {
case "openai":
var (
openAIEmbeddingBaseURL = os.Getenv("OPENAI_EMBEDDING_BASE_URL")
openAIEmbeddingModel = os.Getenv("OPENAI_EMBEDDING_MODEL")
openAIEmbeddingApiKey = os.Getenv("OPENAI_EMBEDDING_API_KEY")
openAIEmbeddingByAzure = os.Getenv("OPENAI_EMBEDDING_BY_AZURE")
openAIEmbeddingApiVersion = os.Getenv("OPENAI_EMBEDDING_API_VERSION")
openAIEmbeddingDims = os.Getenv("OPENAI_EMBEDDING_DIMS")
openAIRequestEmbeddingDims = os.Getenv("OPENAI_EMBEDDING_REQUEST_DIMS")
)
byAzure, err := strconv.ParseBool(openAIEmbeddingByAzure)
if err != nil {
return nil, fmt.Errorf("init openai embedding by_azure failed, err=%w", err)
}
dims, err := strconv.ParseInt(openAIEmbeddingDims, 10, 64)
if err != nil {
return nil, fmt.Errorf("init openai embedding dims failed, err=%w", err)
}
openAICfg := &openai.EmbeddingConfig{
APIKey: openAIEmbeddingApiKey,
ByAzure: byAzure,
BaseURL: openAIEmbeddingBaseURL,
APIVersion: openAIEmbeddingApiVersion,
Model: openAIEmbeddingModel,
// Dimensions: ptr.Of(int(dims)),
}
reqDims := conv.StrToInt64D(openAIRequestEmbeddingDims, 0)
if reqDims > 0 {
// some openai model not support request dims
openAICfg.Dimensions = ptr.Of(int(reqDims))
}
emb, err = wrap.NewOpenAIEmbedder(ctx, openAICfg, dims, batchSize)
if err != nil {
return nil, fmt.Errorf("init openai embedding failed, err=%w", err)
}
case "ark":
var (
arkEmbeddingBaseURL = os.Getenv("ARK_EMBEDDING_BASE_URL")
arkEmbeddingModel = os.Getenv("ARK_EMBEDDING_MODEL")
arkEmbeddingApiKey = os.Getenv("ARK_EMBEDDING_API_KEY")
// deprecated: use ARK_EMBEDDING_API_KEY instead
// ARK_EMBEDDING_AK will be removed in the future
arkEmbeddingAK = os.Getenv("ARK_EMBEDDING_AK")
arkEmbeddingDims = os.Getenv("ARK_EMBEDDING_DIMS")
arkEmbeddingAPIType = os.Getenv("ARK_EMBEDDING_API_TYPE")
)
dims, err := strconv.ParseInt(arkEmbeddingDims, 10, 64)
if err != nil {
return nil, fmt.Errorf("init ark embedding dims failed, err=%w", err)
}
apiType := ark.APITypeText
if arkEmbeddingAPIType != "" {
if t := ark.APIType(arkEmbeddingAPIType); t != ark.APITypeText && t != ark.APITypeMultiModal {
return nil, fmt.Errorf("init ark embedding api_type failed, invalid api_type=%s", t)
} else {
apiType = t
}
}
emb, err = ark.NewArkEmbedder(ctx, &ark.EmbeddingConfig{
APIKey: func() string {
if arkEmbeddingApiKey != "" {
return arkEmbeddingApiKey
}
return arkEmbeddingAK
}(),
Model: arkEmbeddingModel,
BaseURL: arkEmbeddingBaseURL,
APIType: &apiType,
}, dims, batchSize)
if err != nil {
return nil, fmt.Errorf("init ark embedding client failed, err=%w", err)
}
case "ollama":
var (
ollamaEmbeddingBaseURL = os.Getenv("OLLAMA_EMBEDDING_BASE_URL")
ollamaEmbeddingModel = os.Getenv("OLLAMA_EMBEDDING_MODEL")
ollamaEmbeddingDims = os.Getenv("OLLAMA_EMBEDDING_DIMS")
)
dims, err := strconv.ParseInt(ollamaEmbeddingDims, 10, 64)
if err != nil {
return nil, fmt.Errorf("init ollama embedding dims failed, err=%w", err)
}
emb, err = wrap.NewOllamaEmbedder(ctx, &ollama.EmbeddingConfig{
BaseURL: ollamaEmbeddingBaseURL,
Model: ollamaEmbeddingModel,
}, dims, batchSize)
if err != nil {
return nil, fmt.Errorf("init ollama embedding failed, err=%w", err)
}
case "gemini":
var (
geminiEmbeddingBaseURL = os.Getenv("GEMINI_EMBEDDING_BASE_URL")
geminiEmbeddingModel = os.Getenv("GEMINI_EMBEDDING_MODEL")
geminiEmbeddingApiKey = os.Getenv("GEMINI_EMBEDDING_API_KEY")
geminiEmbeddingDims = os.Getenv("GEMINI_EMBEDDING_DIMS")
geminiEmbeddingBackend = os.Getenv("GEMINI_EMBEDDING_BACKEND") // "1" for BackendGeminiAPI / "2" for BackendVertexAI
geminiEmbeddingProject = os.Getenv("GEMINI_EMBEDDING_PROJECT")
geminiEmbeddingLocation = os.Getenv("GEMINI_EMBEDDING_LOCATION")
)
if len(geminiEmbeddingModel) == 0 {
return nil, fmt.Errorf("GEMINI_EMBEDDING_MODEL environment variable is required")
}
if len(geminiEmbeddingApiKey) == 0 {
return nil, fmt.Errorf("GEMINI_EMBEDDING_API_KEY environment variable is required")
}
if len(geminiEmbeddingDims) == 0 {
return nil, fmt.Errorf("GEMINI_EMBEDDING_DIMS environment variable is required")
}
if len(geminiEmbeddingBackend) == 0 {
return nil, fmt.Errorf("GEMINI_EMBEDDING_BACKEND environment variable is required")
}
dims, convErr := strconv.ParseInt(geminiEmbeddingDims, 10, 64)
if convErr != nil {
return nil, fmt.Errorf("invalid GEMINI_EMBEDDING_DIMS value: %s, err=%w", geminiEmbeddingDims, convErr)
}
backend, convErr := strconv.ParseInt(geminiEmbeddingBackend, 10, 64)
if convErr != nil {
return nil, fmt.Errorf("invalid GEMINI_EMBEDDING_BACKEND value: %s, err=%w", geminiEmbeddingBackend, convErr)
}
geminiCli, err := genai.NewClient(ctx, &genai.ClientConfig{
APIKey: geminiEmbeddingApiKey,
Backend: genai.Backend(backend),
Project: geminiEmbeddingProject,
Location: geminiEmbeddingLocation,
HTTPOptions: genai.HTTPOptions{
BaseURL: geminiEmbeddingBaseURL,
},
})
if err != nil {
return nil, fmt.Errorf("init gemini client failed, err=%w", err)
}
emb, err = wrap.NewGeminiEmbedder(ctx, &gemini.EmbeddingConfig{
Client: geminiCli,
Model: geminiEmbeddingModel,
OutputDimensionality: ptr.Of(int32(dims)),
}, dims, batchSize)
if err != nil {
return nil, fmt.Errorf("init gemini embedding failed, err=%w", err)
}
case "http":
var (
httpEmbeddingBaseURL = os.Getenv("HTTP_EMBEDDING_ADDR")
httpEmbeddingDims = os.Getenv("HTTP_EMBEDDING_DIMS")
)
dims, err := strconv.ParseInt(httpEmbeddingDims, 10, 64)
if err != nil {
return nil, fmt.Errorf("init http embedding dims failed, err=%w", err)
}
emb, err = embeddingHttp.NewEmbedding(httpEmbeddingBaseURL, dims, batchSize)
if err != nil {
return nil, fmt.Errorf("init http embedding failed, err=%w", err)
}
default:
return nil, fmt.Errorf("init knowledge embedding failed, type not configured")
}
return emb, nil
}