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Files
nex/backend/internal/service/provider_service_impl.go
lanyuanxiaoyao df253559a5 feat(cache): 实现 RoutingCache 和 StatsBuffer 优化数据库写入
- 新增 RoutingCache 组件,使用 sync.Map 缓存 Provider 和 Model
- 新增 StatsBuffer 组件,使用 sync.Map + atomic.Int64 缓冲统计数据
- 扩展 StatsRepository.BatchUpdate 支持批量增量更新
- 改造 RoutingService/StatsService/ProviderService/ModelService 集成缓存
- 更新 usage-statistics spec,新增 routing-cache 和 stats-buffer spec
- 新增单元测试覆盖缓存命中/失效/并发场景
2026-04-22 19:24:36 +08:00

86 lines
2.3 KiB
Go

package service
import (
"strings"
"nex/backend/pkg/modelid"
"nex/backend/internal/domain"
"nex/backend/internal/repository"
appErrors "nex/backend/pkg/errors"
)
type providerService struct {
providerRepo repository.ProviderRepository
modelRepo repository.ModelRepository
cache *RoutingCache
}
func NewProviderService(providerRepo repository.ProviderRepository, modelRepo repository.ModelRepository, cache *RoutingCache) ProviderService {
return &providerService{providerRepo: providerRepo, modelRepo: modelRepo, cache: cache}
}
func (s *providerService) Create(provider *domain.Provider) error {
if err := modelid.ValidateProviderID(provider.ID); err != nil {
return appErrors.ErrInvalidProviderID
}
provider.Enabled = true
err := s.providerRepo.Create(provider)
if err != nil {
if isUniqueConstraintError(err) {
return appErrors.ErrConflict
}
return err
}
s.cache.SetProvider(provider)
return nil
}
func (s *providerService) Get(id string) (*domain.Provider, error) {
return s.providerRepo.GetByID(id)
}
func (s *providerService) List() ([]domain.Provider, error) {
return s.providerRepo.List()
}
func (s *providerService) Update(id string, updates map[string]interface{}) error {
if _, ok := updates["id"]; ok {
return appErrors.ErrImmutableField
}
err := s.providerRepo.Update(id, updates)
if err != nil {
return err
}
s.cache.InvalidateProvider(id)
return nil
}
func (s *providerService) Delete(id string) error {
err := s.providerRepo.Delete(id)
if err != nil {
return err
}
s.cache.InvalidateProvider(id)
return nil
}
// ListEnabledModels 返回所有启用的模型(用于 Models 接口本地聚合)
func (s *providerService) ListEnabledModels() ([]domain.Model, error) {
return s.modelRepo.ListEnabled()
}
// GetModelByProviderAndName 按 provider_id 和 model_name 查询模型(用于 ModelInfo 接口本地查询)
func (s *providerService) GetModelByProviderAndName(providerID, modelName string) (*domain.Model, error) {
return s.modelRepo.FindByProviderAndModelName(providerID, modelName)
}
// isUniqueConstraintError 判断是否为数据库唯一约束冲突错误
func isUniqueConstraintError(err error) bool {
if err == nil {
return false
}
msg := strings.ToLower(err.Error())
return strings.Contains(msg, "unique constraint") || strings.Contains(msg, "duplicate")
}