feat: workflow run dispatcher

This commit is contained in:
Fu Diwei
2025-02-08 22:44:13 +08:00
parent b9e28db089
commit 0bc40fd676
13 changed files with 472 additions and 226 deletions

View File

@@ -4,23 +4,14 @@ import (
"context"
"errors"
"fmt"
"sync"
"time"
"github.com/usual2970/certimate/internal/app"
"github.com/usual2970/certimate/internal/domain"
"github.com/usual2970/certimate/internal/domain/dtos"
processor "github.com/usual2970/certimate/internal/workflow/processor"
"github.com/usual2970/certimate/internal/workflow/dispatcher"
)
const defaultRoutines = 16
type workflowRunData struct {
WorkflowId string
WorkflowContent *domain.WorkflowNode
RunTrigger domain.WorkflowTriggerType
}
type workflowRepository interface {
ListEnabledAuto(ctx context.Context) ([]*domain.Workflow, error)
GetById(ctx context.Context, id string) (*domain.Workflow, error)
@@ -33,30 +24,19 @@ type workflowRunRepository interface {
}
type WorkflowService struct {
ch chan *workflowRunData
wg sync.WaitGroup
cancel context.CancelFunc
dispatcher *dispatcher.WorkflowDispatcher
workflowRepo workflowRepository
workflowRunRepo workflowRunRepository
}
func NewWorkflowService(workflowRepo workflowRepository, workflowRunRepo workflowRunRepository) *WorkflowService {
ctx, cancel := context.WithCancel(context.Background())
srv := &WorkflowService{
ch: make(chan *workflowRunData, 1),
cancel: cancel,
dispatcher: dispatcher.GetSingletonDispatcher(workflowRepo, workflowRunRepo),
workflowRepo: workflowRepo,
workflowRunRepo: workflowRunRepo,
}
srv.wg.Add(defaultRoutines)
for i := 0; i < defaultRoutines; i++ {
go srv.startRun(ctx)
}
return srv
}
@@ -75,7 +55,6 @@ func (s *WorkflowService) InitSchedule(ctx context.Context) error {
})
})
if err != nil {
app.GetLogger().Error("failed to add schedule", "err", err)
return err
}
}
@@ -86,7 +65,6 @@ func (s *WorkflowService) InitSchedule(ctx context.Context) error {
func (s *WorkflowService) StartRun(ctx context.Context, req *dtos.WorkflowStartRunReq) error {
workflow, err := s.workflowRepo.GetById(ctx, req.WorkflowId)
if err != nil {
app.GetLogger().Error("failed to get workflow", "id", req.WorkflowId, "err", err)
return err
}
@@ -94,69 +72,10 @@ func (s *WorkflowService) StartRun(ctx context.Context, req *dtos.WorkflowStartR
return errors.New("workflow is already pending or running")
}
s.ch <- &workflowRunData{
WorkflowId: workflow.Id,
WorkflowContent: workflow.Content,
RunTrigger: req.RunTrigger,
}
return nil
}
func (s *WorkflowService) CancelRun(ctx context.Context, req *dtos.WorkflowCancelRunReq) error {
workflow, err := s.workflowRepo.GetById(ctx, req.WorkflowId)
if err != nil {
app.GetLogger().Error("failed to get workflow", "id", req.WorkflowId, "err", err)
return err
}
workflowRun, err := s.workflowRunRepo.GetById(ctx, req.RunId)
if err != nil {
app.GetLogger().Error("failed to get workflow run", "id", req.RunId, "err", err)
return err
} else if workflowRun.WorkflowId != workflow.Id {
return errors.New("workflow run not found")
} else if workflowRun.Status != domain.WorkflowRunStatusTypePending && workflowRun.Status != domain.WorkflowRunStatusTypeRunning {
return errors.New("workflow run is not pending or running")
}
// TODO: 取消运行,防止因为某些原因意外挂起(如进程被杀死)导致工作流一直处于 running 状态无法重新运行
// workflowRun.Status = domain.WorkflowRunStatusTypeCanceled
// workflowRun.EndedAt = time.Now()
// if _, err := s.workflowRunRepo.Save(ctx, workflowRun); err != nil {
// return err
// }
// return nil
return errors.New("TODO: 尚未实现")
}
func (s *WorkflowService) Stop(ctx context.Context) {
s.cancel()
s.wg.Wait()
}
func (s *WorkflowService) startRun(ctx context.Context) {
defer s.wg.Done()
for {
select {
case data := <-s.ch:
if err := s.startRunWithData(ctx, data); err != nil {
app.GetLogger().Error("failed to run workflow", "id", data.WorkflowId, "err", err)
}
case <-ctx.Done():
return
}
}
}
func (s *WorkflowService) startRunWithData(ctx context.Context, data *workflowRunData) error {
run := &domain.WorkflowRun{
WorkflowId: data.WorkflowId,
Status: domain.WorkflowRunStatusTypeRunning,
Trigger: data.RunTrigger,
WorkflowId: workflow.Id,
Status: domain.WorkflowRunStatusTypePending,
Trigger: req.RunTrigger,
StartedAt: time.Now(),
}
if resp, err := s.workflowRunRepo.Save(ctx, run); err != nil {
@@ -165,31 +84,35 @@ func (s *WorkflowService) startRunWithData(ctx context.Context, data *workflowRu
run = resp
}
processor := processor.NewWorkflowProcessor(data.WorkflowId, data.WorkflowContent, run.Id)
if runErr := processor.Process(ctx); runErr != nil {
run.Status = domain.WorkflowRunStatusTypeFailed
run.EndedAt = time.Now()
run.Logs = processor.GetLogs()
run.Error = runErr.Error()
if _, err := s.workflowRunRepo.Save(ctx, run); err != nil {
app.GetLogger().Error("failed to save workflow run", "err", err)
}
return fmt.Errorf("failed to run workflow: %w", runErr)
}
run.EndedAt = time.Now()
run.Logs = processor.GetLogs()
run.Error = domain.WorkflowRunLogs(run.Logs).ErrorString()
if run.Error == "" {
run.Status = domain.WorkflowRunStatusTypeSucceeded
} else {
run.Status = domain.WorkflowRunStatusTypeFailed
}
if _, err := s.workflowRunRepo.Save(ctx, run); err != nil {
app.GetLogger().Error("failed to save workflow run", "err", err)
return err
}
s.dispatcher.Dispatch(&dispatcher.WorkflowWorkerData{
WorkflowId: workflow.Id,
WorkflowContent: workflow.Content,
RunId: run.Id,
})
return nil
}
func (s *WorkflowService) CancelRun(ctx context.Context, req *dtos.WorkflowCancelRunReq) error {
workflow, err := s.workflowRepo.GetById(ctx, req.WorkflowId)
if err != nil {
return err
}
workflowRun, err := s.workflowRunRepo.GetById(ctx, req.RunId)
if err != nil {
return err
} else if workflowRun.WorkflowId != workflow.Id {
return errors.New("workflow run not found")
} else if workflowRun.Status != domain.WorkflowRunStatusTypePending && workflowRun.Status != domain.WorkflowRunStatusTypeRunning {
return errors.New("workflow run is not pending or running")
}
s.dispatcher.Cancel(workflowRun.Id)
return nil
}
func (s *WorkflowService) Shutdown(ctx context.Context) {
s.dispatcher.Shutdown()
}