WIP: flow rewrite #138
@ -1,3 +1,5 @@
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//go:build ignore
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package flow
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import (
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21
flow/dag.go
21
flow/dag.go
@ -1,21 +0,0 @@
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package flow
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type node struct {
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name string
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}
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func (n *node) ID() string {
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return n.name
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}
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func (n *node) Name() string {
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return n.name
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}
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func (n *node) String() string {
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return n.name
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}
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func (n *node) Hashcode() interface{} {
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return n.name
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}
|
117
flow/dag_test.go
117
flow/dag_test.go
@ -1,117 +0,0 @@
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package flow
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import (
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"fmt"
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"testing"
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"github.com/silas/dag"
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)
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func TestDeps(t *testing.T) {
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d := &dag.AcyclicGraph{}
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v0 := d.Add(&node{"v0"})
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v1 := d.Add(&node{"v1"})
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v2 := d.Add(&node{"v2"})
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v3 := d.Add(&node{"v3"})
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v4 := d.Add(&node{"v4"})
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d.Connect(dag.BasicEdge(v0, v1))
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d.Connect(dag.BasicEdge(v1, v2))
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d.Connect(dag.BasicEdge(v2, v4))
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d.Connect(dag.BasicEdge(v0, v3))
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d.Connect(dag.BasicEdge(v3, v4))
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if err := d.Validate(); err != nil {
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t.Fatal(err)
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}
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d.TransitiveReduction()
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var steps [][]string
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fn := func(n dag.Vertex, idx int) error {
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if idx == 0 {
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steps = make([][]string, 1)
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steps[0] = make([]string, 0, 1)
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} else if idx >= len(steps) {
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tsteps := make([][]string, idx+1)
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copy(tsteps, steps)
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steps = tsteps
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steps[idx] = make([]string, 0, 1)
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}
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steps[idx] = append(steps[idx], fmt.Sprintf("%s", n))
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return nil
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}
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start := &node{"v0"}
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err := d.SortedDepthFirstWalk([]dag.Vertex{start}, fn)
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checkErr(t, err)
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for idx, steps := range steps {
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fmt.Printf("level %d steps %#+v\n", idx, steps)
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}
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if len(steps[2]) != 1 {
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t.Logf("invalid steps %#+v", steps[2])
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}
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}
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func checkErr(t *testing.T, err error) {
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if err != nil {
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t.Fatal(err)
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}
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}
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func TestDag(t *testing.T) {
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d1 := &dag.AcyclicGraph{}
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d2 := &dag.AcyclicGraph{}
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d2v1 := d2.Add(&node{"Substep.Create"})
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v1 := d1.Add(&node{"AccountService.Create"})
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v2 := d1.Add(&node{"AuthzService.Create"})
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v3 := d1.Add(&node{"AuthnService.Create"})
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v4 := d1.Add(&node{"ProjectService.Create"})
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v5 := d1.Add(&node{"ContactService.Create"})
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v6 := d1.Add(&node{"NetworkService.Create"})
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v7 := d1.Add(&node{"MailerService.Create"})
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v8 := d1.Add(&node{"NestedService.Create"})
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v9 := d1.Add(d2v1)
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d1.Connect(dag.BasicEdge(v1, v2))
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d1.Connect(dag.BasicEdge(v1, v3))
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d1.Connect(dag.BasicEdge(v1, v4))
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d1.Connect(dag.BasicEdge(v1, v5))
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d1.Connect(dag.BasicEdge(v1, v6))
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d1.Connect(dag.BasicEdge(v1, v7))
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d1.Connect(dag.BasicEdge(v7, v8))
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d1.Connect(dag.BasicEdge(v8, v9))
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if err := d1.Validate(); err != nil {
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t.Fatal(err)
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}
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d1.TransitiveReduction()
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var steps [][]string
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fn := func(n dag.Vertex, idx int) error {
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if idx == 0 {
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steps = make([][]string, 1)
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steps[0] = make([]string, 0, 1)
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} else if idx >= len(steps) {
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tsteps := make([][]string, idx+1)
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copy(tsteps, steps)
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steps = tsteps
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steps[idx] = make([]string, 0, 1)
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}
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steps[idx] = append(steps[idx], fmt.Sprintf("%s", n))
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return nil
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}
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start := &node{"AccountService.Create"}
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err := d1.SortedDepthFirstWalk([]dag.Vertex{start}, fn)
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checkErr(t, err)
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if len(steps) != 4 {
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t.Fatalf("invalid steps: %#+v", steps)
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}
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if steps[3][0] != "Substep.Create" {
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t.Fatalf("invalid last step: %#+v", steps)
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}
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}
|
452
flow/default.go
452
flow/default.go
@ -6,7 +6,7 @@ import (
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"path/filepath"
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"sync"
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"github.com/silas/dag"
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"github.com/heimdalr/dag"
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"go.unistack.org/micro/v3/client"
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"go.unistack.org/micro/v3/codec"
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"go.unistack.org/micro/v3/logger"
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@ -21,7 +21,7 @@ type microFlow struct {
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type microWorkflow struct {
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opts Options
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g *dag.AcyclicGraph
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g *dag.DAG
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steps map[string]Step
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id string
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status Status
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@ -33,20 +33,20 @@ func (w *microWorkflow) ID() string {
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return w.id
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}
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func (w *microWorkflow) Steps() ([][]Step, error) {
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return w.getSteps("", false)
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}
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func (w *microWorkflow) Status() Status {
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return w.status
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}
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func (w *microWorkflow) AppendSteps(steps ...Step) error {
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var err error
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w.Lock()
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defer w.Unlock()
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for _, s := range steps {
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w.steps[s.String()] = s
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w.g.Add(s)
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if _, err = w.g.AddVertex(s); err != nil {
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return err
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}
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}
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for _, dst := range steps {
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@ -55,18 +55,13 @@ func (w *microWorkflow) AppendSteps(steps ...Step) error {
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if !ok {
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return ErrStepNotExists
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}
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w.g.Connect(dag.BasicEdge(src, dst))
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if err = w.g.AddEdge(src.String(), dst.String()); err != nil {
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return err
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}
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}
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}
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if err := w.g.Validate(); err != nil {
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w.Unlock()
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return err
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}
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w.g.TransitiveReduction()
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w.Unlock()
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w.g.ReduceTransitively()
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return nil
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}
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@ -75,10 +70,11 @@ func (w *microWorkflow) RemoveSteps(steps ...Step) error {
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// TODO: handle case when some step requires or required by removed step
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w.Lock()
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defer w.Unlock()
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for _, s := range steps {
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delete(w.steps, s.String())
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w.g.Remove(s)
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w.g.DeleteVertex(s.String())
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}
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for _, dst := range steps {
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@ -87,68 +83,15 @@ func (w *microWorkflow) RemoveSteps(steps ...Step) error {
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if !ok {
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return ErrStepNotExists
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}
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w.g.Connect(dag.BasicEdge(src, dst))
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w.g.AddEdge(src.String(), dst.String())
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}
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}
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if err := w.g.Validate(); err != nil {
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w.Unlock()
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return err
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}
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w.g.TransitiveReduction()
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w.Unlock()
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w.g.ReduceTransitively()
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return nil
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}
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func (w *microWorkflow) getSteps(start string, reverse bool) ([][]Step, error) {
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var steps [][]Step
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var root dag.Vertex
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var err error
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fn := func(n dag.Vertex, idx int) error {
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if idx == 0 {
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steps = make([][]Step, 1)
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steps[0] = make([]Step, 0, 1)
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} else if idx >= len(steps) {
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tsteps := make([][]Step, idx+1)
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copy(tsteps, steps)
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steps = tsteps
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steps[idx] = make([]Step, 0, 1)
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}
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steps[idx] = append(steps[idx], n.(Step))
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return nil
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}
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if start != "" {
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var ok bool
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w.RLock()
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root, ok = w.steps[start]
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w.RUnlock()
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if !ok {
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return nil, ErrStepNotExists
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}
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} else {
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root, err = w.g.Root()
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if err != nil {
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return nil, err
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}
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}
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if reverse {
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err = w.g.SortedReverseDepthFirstWalk([]dag.Vertex{root}, fn)
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} else {
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err = w.g.SortedDepthFirstWalk([]dag.Vertex{root}, fn)
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}
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if err != nil {
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return nil, err
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}
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return steps, nil
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}
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func (w *microWorkflow) Abort(ctx context.Context, id string) error {
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workflowStore := store.NewNamespaceStore(w.opts.Store, filepath.Join("workflows", id))
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return workflowStore.Write(ctx, "status", &codec.Frame{Data: []byte(StatusAborted.String())})
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@ -167,11 +110,7 @@ func (w *microWorkflow) Resume(ctx context.Context, id string) error {
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func (w *microWorkflow) Execute(ctx context.Context, req *Message, opts ...ExecuteOption) (string, error) {
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w.Lock()
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if !w.init {
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if err := w.g.Validate(); err != nil {
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w.Unlock()
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return "", err
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}
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w.g.TransitiveReduction()
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w.g.ReduceTransitively()
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w.init = true
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}
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w.Unlock()
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@ -181,26 +120,11 @@ func (w *microWorkflow) Execute(ctx context.Context, req *Message, opts ...Execu
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return "", err
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}
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stepStore := store.NewNamespaceStore(w.opts.Store, filepath.Join("steps", eid))
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// stepStore := store.NewNamespaceStore(w.opts.Store, filepath.Join("steps", eid))
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workflowStore := store.NewNamespaceStore(w.opts.Store, filepath.Join("workflows", eid))
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options := NewExecuteOptions(opts...)
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steps, err := w.getSteps(options.Start, options.Reverse)
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if err != nil {
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if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusPending.String())}); werr != nil {
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w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
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}
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return "", err
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}
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var wg sync.WaitGroup
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cherr := make(chan error, 1)
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chstatus := make(chan Status, 1)
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nctx, cancel := context.WithCancel(ctx)
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defer cancel()
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nopts := make([]ExecuteOption, 0, len(opts)+5)
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nopts = append(nopts,
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@ -210,143 +134,274 @@ func (w *microWorkflow) Execute(ctx context.Context, req *Message, opts ...Execu
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ExecuteMeter(w.opts.Meter),
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)
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nopts = append(nopts, opts...)
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done := make(chan struct{})
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if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusRunning.String())}); werr != nil {
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w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
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return eid, werr
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}
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for idx := range steps {
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for nidx := range steps[idx] {
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cstep := steps[idx][nidx]
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if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "status"), &codec.Frame{Data: []byte(StatusPending.String())}); werr != nil {
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return eid, werr
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var startID string
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if options.Start == "" {
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mp := w.g.GetRoots()
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if len(mp) != 1 {
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return eid, ErrStepNotExists
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}
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for k := range mp {
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startID = k
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}
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} else {
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for k, v := range w.g.GetVertices() {
|
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if v == options.Start {
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startID = k
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}
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}
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}
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|
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go func() {
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for idx := range steps {
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for nidx := range steps[idx] {
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wStatus := &codec.Frame{}
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if werr := workflowStore.Read(w.opts.Context, "status", wStatus); werr != nil {
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cherr <- werr
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return
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if startID == "" {
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return eid, ErrStepNotExists
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}
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|
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if options.Async {
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go w.handleWorkflow(startID, nopts...)
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return eid, nil
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}
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|
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return eid, w.handleWorkflow(startID, nopts...)
|
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}
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|
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func (w *microWorkflow) handleWorkflow(startID string, opts ...ExecuteOption) error {
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w.RLock()
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defer w.RUnlock()
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|
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// stepStore := store.NewNamespaceStore(w.opts.Store, filepath.Join("steps", eid))
|
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// workflowStore := store.NewNamespaceStore(w.opts.Store, filepath.Join("workflows", eid))
|
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// Get IDs of all descendant vertices.
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flowIDs, errDes := w.g.GetDescendants(startID)
|
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if errDes != nil {
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return errDes
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}
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|
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// inputChannels provides for input channels for each of the descendant vertices (+ the start-vertex).
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inputChannels := make(map[string]chan FlowResult, len(flowIDs)+1)
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|
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// Iterate vertex IDs and create an input channel for each of them and a single
|
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// output channel for leaves. Note, this "pre-flight" is needed to ensure we
|
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// really have an input channel regardless of how we traverse the tree and spawn
|
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// workers.
|
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leafCount := 0
|
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|
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for id := range flowIDs {
|
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|
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// Get all parents of this vertex.
|
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parents, errPar := w.g.GetParents(id)
|
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if errPar != nil {
|
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return errPar
|
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}
|
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|
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// Create a buffered input channel that has capacity for all parent results.
|
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inputChannels[id] = make(chan FlowResult, len(parents))
|
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|
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if w.g.isLeaf(id) {
|
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leafCount += 1
|
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}
|
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}
|
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|
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// outputChannel caries the results of leaf vertices.
|
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outputChannel := make(chan FlowResult, leafCount)
|
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|
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// To also process the start vertex and to have its results being passed to its
|
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// children, add it to the vertex IDs. Also add an input channel for the start
|
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// vertex and feed the inputs to this channel.
|
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flowIDs[startID] = struct{}{}
|
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inputChannels[startID] = make(chan FlowResult, len(inputs))
|
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for _, i := range inputs {
|
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inputChannels[startID] <- i
|
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}
|
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|
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wg := sync.WaitGroup{}
|
||||
|
||||
// Iterate all vertex IDs (now incl. start vertex) and handle each worker (incl.
|
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// inputs and outputs) in a separate goroutine.
|
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for id := range flowIDs {
|
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|
||||
// Get all children of this vertex that later need to be notified. Note, we
|
||||
// collect all children before the goroutine to be able to release the read
|
||||
// lock as early as possible.
|
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children, errChildren := w.g.GetChildren(id)
|
||||
if errChildren != nil {
|
||||
return errChildren
|
||||
}
|
||||
|
||||
// Remember to wait for this goroutine.
|
||||
wg.Add(1)
|
||||
|
||||
go func(id string) {
|
||||
// Get this vertex's input channel.
|
||||
// Note, only concurrent read here, which is fine.
|
||||
c := inputChannels[id]
|
||||
|
||||
// Await all parent inputs and stuff them into a slice.
|
||||
parentCount := cap(c)
|
||||
parentResults := make([]FlowResult, parentCount)
|
||||
for i := 0; i < parentCount; i++ {
|
||||
parentResults[i] = <-c
|
||||
}
|
||||
|
||||
// Execute the worker.
|
||||
errWorker := callback(w.g, id, parentResults)
|
||||
if errWorker != nil {
|
||||
return errWorker
|
||||
}
|
||||
|
||||
// Send this worker's FlowResult onto all children's input channels or, if it is
|
||||
// a leaf (i.e. no children), send the result onto the output channel.
|
||||
if len(children) > 0 {
|
||||
for child := range children {
|
||||
inputChannels[child] <- flowResult
|
||||
}
|
||||
if status := StringStatus[string(wStatus.Data)]; status != StatusRunning {
|
||||
chstatus <- status
|
||||
return
|
||||
}
|
||||
if w.opts.Logger.V(logger.TraceLevel) {
|
||||
w.opts.Logger.Tracef(nctx, "will be executed %v", steps[idx][nidx])
|
||||
}
|
||||
cstep := steps[idx][nidx]
|
||||
// nolint: nestif
|
||||
if len(cstep.Requires()) == 0 {
|
||||
wg.Add(1)
|
||||
go func(step Step) {
|
||||
defer wg.Done()
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "req"), req); werr != nil {
|
||||
} else {
|
||||
outputChannel <- flowResult
|
||||
}
|
||||
|
||||
// "Sign off".
|
||||
wg.Done()
|
||||
}(id)
|
||||
}
|
||||
|
||||
// Wait for all go routines to finish.
|
||||
wg.Wait()
|
||||
|
||||
// Await all leaf vertex results and stuff them into a slice.
|
||||
resultCount := cap(outputChannel)
|
||||
results := make([]FlowResult, resultCount)
|
||||
for i := 0; i < resultCount; i++ {
|
||||
results[i] = <-outputChannel
|
||||
}
|
||||
|
||||
/*
|
||||
go func() {
|
||||
for idx := range steps {
|
||||
for nidx := range steps[idx] {
|
||||
wStatus := &codec.Frame{}
|
||||
if werr := workflowStore.Read(w.opts.Context, "status", wStatus); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
if status := StringStatus[string(wStatus.Data)]; status != StatusRunning {
|
||||
chstatus <- status
|
||||
return
|
||||
}
|
||||
if w.opts.Logger.V(logger.TraceLevel) {
|
||||
w.opts.Logger.Tracef(nctx, "will be executed %v", steps[idx][nidx])
|
||||
}
|
||||
cstep := steps[idx][nidx]
|
||||
// nolint: nestif
|
||||
if len(cstep.Requires()) == 0 {
|
||||
wg.Add(1)
|
||||
go func(step Step) {
|
||||
defer wg.Done()
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "req"), req); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "status"), &codec.Frame{Data: []byte(StatusRunning.String())}); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
rsp, serr := step.Execute(nctx, req, nopts...)
|
||||
if serr != nil {
|
||||
step.SetStatus(StatusFailure)
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "rsp"), serr); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "status"), &codec.Frame{Data: []byte(StatusFailure.String())}); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
}
|
||||
cherr <- serr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "rsp"), rsp); werr != nil {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "status"), &codec.Frame{Data: []byte(StatusSuccess.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
}(cstep)
|
||||
wg.Wait()
|
||||
} else {
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "req"), req); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "status"), &codec.Frame{Data: []byte(StatusRunning.String())}); werr != nil {
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "status"), &codec.Frame{Data: []byte(StatusRunning.String())}); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
rsp, serr := step.Execute(nctx, req, nopts...)
|
||||
rsp, serr := cstep.Execute(nctx, req, nopts...)
|
||||
if serr != nil {
|
||||
step.SetStatus(StatusFailure)
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "rsp"), serr); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
cstep.SetStatus(StatusFailure)
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "rsp"), serr); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "status"), &codec.Frame{Data: []byte(StatusFailure.String())}); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "status"), &codec.Frame{Data: []byte(StatusFailure.String())}); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
}
|
||||
cherr <- serr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "rsp"), rsp); werr != nil {
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "rsp"), rsp); werr != nil {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(step.ID(), "status"), &codec.Frame{Data: []byte(StatusSuccess.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "status"), &codec.Frame{Data: []byte(StatusSuccess.String())}); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
}(cstep)
|
||||
wg.Wait()
|
||||
} else {
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "req"), req); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "status"), &codec.Frame{Data: []byte(StatusRunning.String())}); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
rsp, serr := cstep.Execute(nctx, req, nopts...)
|
||||
if serr != nil {
|
||||
cstep.SetStatus(StatusFailure)
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "rsp"), serr); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "status"), &codec.Frame{Data: []byte(StatusFailure.String())}); werr != nil && w.opts.Logger.V(logger.ErrorLevel) {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
}
|
||||
cherr <- serr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "rsp"), rsp); werr != nil {
|
||||
w.opts.Logger.Errorf(ctx, "store write error: %v", werr)
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
if werr := stepStore.Write(ctx, filepath.Join(cstep.ID(), "status"), &codec.Frame{Data: []byte(StatusSuccess.String())}); werr != nil {
|
||||
cherr <- werr
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
close(done)
|
||||
}()
|
||||
close(done)
|
||||
}()
|
||||
|
||||
if options.Async {
|
||||
return eid, nil
|
||||
}
|
||||
|
||||
logger.Tracef(ctx, "wait for finish or error")
|
||||
select {
|
||||
case <-nctx.Done():
|
||||
err = nctx.Err()
|
||||
case cerr := <-cherr:
|
||||
err = cerr
|
||||
case <-done:
|
||||
close(cherr)
|
||||
case <-chstatus:
|
||||
close(chstatus)
|
||||
return eid, nil
|
||||
}
|
||||
|
||||
switch {
|
||||
case nctx.Err() != nil:
|
||||
if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusAborted.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
|
||||
if options.Async {
|
||||
return eid, nil
|
||||
}
|
||||
case err == nil:
|
||||
if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusSuccess.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
|
||||
}
|
||||
case err != nil:
|
||||
if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusFailure.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
|
||||
}
|
||||
}
|
||||
|
||||
return eid, err
|
||||
logger.Tracef(ctx, "wait for finish or error")
|
||||
select {
|
||||
case <-nctx.Done():
|
||||
err = nctx.Err()
|
||||
case cerr := <-cherr:
|
||||
err = cerr
|
||||
case <-done:
|
||||
close(cherr)
|
||||
case <-chstatus:
|
||||
close(chstatus)
|
||||
return eid, nil
|
||||
}
|
||||
|
||||
switch {
|
||||
case nctx.Err() != nil:
|
||||
if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusAborted.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
|
||||
}
|
||||
case err == nil:
|
||||
if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusSuccess.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
|
||||
}
|
||||
case err != nil:
|
||||
if werr := workflowStore.Write(w.opts.Context, "status", &codec.Frame{Data: []byte(StatusFailure.String())}); werr != nil {
|
||||
w.opts.Logger.Errorf(w.opts.Context, "store error: %v", werr)
|
||||
}
|
||||
}
|
||||
*/
|
||||
return err
|
||||
}
|
||||
|
||||
// NewFlow create new flow
|
||||
@ -386,11 +441,11 @@ func (f *microFlow) WorkflowList(ctx context.Context) ([]Workflow, error) {
|
||||
}
|
||||
|
||||
func (f *microFlow) WorkflowCreate(ctx context.Context, id string, steps ...Step) (Workflow, error) {
|
||||
w := µWorkflow{opts: f.opts, id: id, g: &dag.AcyclicGraph{}, steps: make(map[string]Step, len(steps))}
|
||||
w := µWorkflow{opts: f.opts, id: id, g: &dag.DAG{}, steps: make(map[string]Step, len(steps))}
|
||||
|
||||
for _, s := range steps {
|
||||
w.steps[s.String()] = s
|
||||
w.g.Add(s)
|
||||
w.g.AddVertex(s)
|
||||
}
|
||||
|
||||
for _, dst := range steps {
|
||||
@ -399,14 +454,11 @@ func (f *microFlow) WorkflowCreate(ctx context.Context, id string, steps ...Step
|
||||
if !ok {
|
||||
return nil, ErrStepNotExists
|
||||
}
|
||||
w.g.Connect(dag.BasicEdge(src, dst))
|
||||
w.g.AddEdge(src.String(), dst.String())
|
||||
}
|
||||
}
|
||||
|
||||
if err := w.g.Validate(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
w.g.TransitiveReduction()
|
||||
w.g.ReduceTransitively()
|
||||
|
||||
w.init = true
|
||||
|
||||
|
@ -125,8 +125,6 @@ type Workflow interface {
|
||||
AppendSteps(steps ...Step) error
|
||||
// Status returns workflow status
|
||||
Status() Status
|
||||
// Steps returns steps slice where parallel steps returned on the same level
|
||||
Steps() ([][]Step, error)
|
||||
// Suspend suspends execution
|
||||
Suspend(ctx context.Context, id string) error
|
||||
// Resume resumes execution
|
||||
|
@ -123,8 +123,6 @@ type ExecuteOptions struct {
|
||||
Start string
|
||||
// Timeout for execution
|
||||
Timeout time.Duration
|
||||
// Reverse execution
|
||||
Reverse bool
|
||||
// Async enables async execution
|
||||
Async bool
|
||||
}
|
||||
@ -167,13 +165,6 @@ func ExecuteContext(ctx context.Context) ExecuteOption {
|
||||
}
|
||||
}
|
||||
|
||||
// ExecuteReverse says that dag must be run in reverse order
|
||||
func ExecuteReverse(b bool) ExecuteOption {
|
||||
return func(o *ExecuteOptions) {
|
||||
o.Reverse = b
|
||||
}
|
||||
}
|
||||
|
||||
// ExecuteTimeout pass timeout time.Duration for execution
|
||||
func ExecuteTimeout(td time.Duration) ExecuteOption {
|
||||
return func(o *ExecuteOptions) {
|
||||
|
6
go.mod
6
go.mod
@ -3,13 +3,15 @@ module go.unistack.org/micro/v3
|
||||
go 1.16
|
||||
|
||||
require (
|
||||
github.com/google/gnostic v0.6.8 // indirect
|
||||
github.com/google/gnostic v0.6.9 // indirect
|
||||
github.com/google/go-cmp v0.5.7 // indirect
|
||||
github.com/heimdalr/dag v1.2.1
|
||||
github.com/imdario/mergo v0.3.13
|
||||
github.com/kr/pretty v0.2.1 // indirect
|
||||
github.com/kr/text v0.2.0 // indirect
|
||||
github.com/patrickmn/go-cache v2.1.0+incompatible
|
||||
github.com/silas/dag v0.0.0-20211117232152-9d50aa809f35
|
||||
github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5
|
||||
go.unistack.org/micro-proto/v3 v3.2.7
|
||||
google.golang.org/protobuf v1.28.0 // indirect
|
||||
gopkg.in/yaml.v3 v3.0.1 // indirect
|
||||
)
|
||||
|
18
go.sum
18
go.sum
@ -14,6 +14,8 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
|
||||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE=
|
||||
github.com/emirpasic/gods v1.18.1 h1:FXtiHYKDGKCW2KzwZKx0iC0PQmdlorYgdFG9jPXJ1Bc=
|
||||
github.com/emirpasic/gods v1.18.1/go.mod h1:8tpGGwCnJ5H4r6BWwaV6OrWmMoPhUl5jm/FMNAnJvWQ=
|
||||
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
|
||||
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
|
||||
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
|
||||
@ -22,6 +24,8 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.m
|
||||
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
|
||||
github.com/flowstack/go-jsonschema v0.1.1/go.mod h1:yL7fNggx1o8rm9RlgXv7hTBWxdBM0rVwpMwimd3F3N0=
|
||||
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
|
||||
github.com/go-test/deep v1.0.7 h1:/VSMRlnY/JSyqxQUzQLKVMAskpY/NZKFA5j2P+0pP2M=
|
||||
github.com/go-test/deep v1.0.7/go.mod h1:QV8Hv/iy04NyLBxAdO9njL0iVPN1S4d/A3NVv1V36o8=
|
||||
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
|
||||
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
|
||||
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
|
||||
@ -39,8 +43,8 @@ github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaS
|
||||
github.com/golang/protobuf v1.5.2 h1:ROPKBNFfQgOUMifHyP+KYbvpjbdoFNs+aK7DXlji0Tw=
|
||||
github.com/golang/protobuf v1.5.2/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
|
||||
github.com/google/gnostic v0.6.6/go.mod h1:Nm8234We1lq6iB9OmlgNv3nH91XLLVZHCDayfA3xq+E=
|
||||
github.com/google/gnostic v0.6.8 h1:bT56GPYBWh1tvBuBEd94qcS3+60b+y0HQur0ITkGuCk=
|
||||
github.com/google/gnostic v0.6.8/go.mod h1:Nm8234We1lq6iB9OmlgNv3nH91XLLVZHCDayfA3xq+E=
|
||||
github.com/google/gnostic v0.6.9 h1:ZK/5VhkoX835RikCHpSUJV9a+S3e1zLh59YnyWeBW+0=
|
||||
github.com/google/gnostic v0.6.9/go.mod h1:Nm8234We1lq6iB9OmlgNv3nH91XLLVZHCDayfA3xq+E=
|
||||
github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
|
||||
github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
|
||||
github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
|
||||
@ -49,8 +53,11 @@ github.com/google/go-cmp v0.5.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/
|
||||
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
|
||||
github.com/google/go-cmp v0.5.7 h1:81/ik6ipDQS2aGcBfIN5dHDB36BwrStyeAQquSYCV4o=
|
||||
github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8/DtOE=
|
||||
github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
|
||||
github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
|
||||
github.com/heimdalr/dag v1.2.1 h1:XJOMaoWqJK1UKdp+4zaO2uwav9GFbHMGCirdViKMRIQ=
|
||||
github.com/heimdalr/dag v1.2.1/go.mod h1:Of/wUB7Yoj4dwiOcGOOYIq6MHlPF/8/QMBKFJpwg+yc=
|
||||
github.com/imdario/mergo v0.3.13 h1:lFzP57bqS/wsqKssCGmtLAb8A0wKjLGrve2q3PPVcBk=
|
||||
github.com/imdario/mergo v0.3.13/go.mod h1:4lJ1jqUDcsbIECGy0RUJAXNIhg+6ocWgb1ALK2O4oXg=
|
||||
github.com/kr/pretty v0.2.0/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
|
||||
@ -65,8 +72,8 @@ github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTK
|
||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
|
||||
github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
|
||||
github.com/silas/dag v0.0.0-20211117232152-9d50aa809f35 h1:4mohWoM/UGg1BvFFiqSPRl5uwJY3rVV0HQX0ETqauqQ=
|
||||
github.com/silas/dag v0.0.0-20211117232152-9d50aa809f35/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
|
||||
github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5 h1:G/FZtUu7a6NTWl3KUHMV9jkLAh/Rvtf03NWMHaEDl+E=
|
||||
github.com/silas/dag v0.0.0-20220518035006-a7e85ada93c5/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
|
||||
github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
|
||||
github.com/stoewer/go-strcase v1.2.0/go.mod h1:IBiWB2sKIp3wVVQ3Y035++gc+knqhUQag1KpM8ahLw8=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
@ -155,7 +162,8 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
|
||||
gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
gopkg.in/yaml.v3 v3.0.0 h1:hjy8E9ON/egN1tAYqKb61G10WtihqetD4sz2H+8nIeA=
|
||||
gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
|
||||
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
|
||||
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
|
||||
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
|
||||
|
Loading…
Reference in New Issue
Block a user