flow: add initial flow dag
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
parent
cf2aa827e4
commit
240b6016df
21
flow/dag.go
Normal file
21
flow/dag.go
Normal file
@ -0,0 +1,21 @@
|
||||
package flow
|
||||
|
||||
type node struct {
|
||||
name string
|
||||
}
|
||||
|
||||
func (n *node) ID() string {
|
||||
return n.name
|
||||
}
|
||||
|
||||
func (n *node) Name() string {
|
||||
return n.name
|
||||
}
|
||||
|
||||
func (n *node) String() string {
|
||||
return n.name
|
||||
}
|
||||
|
||||
func (n *node) Hashcode() interface{} {
|
||||
return n.name
|
||||
}
|
||||
68
flow/dag_test.go
Normal file
68
flow/dag_test.go
Normal file
@ -0,0 +1,68 @@
|
||||
package flow
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"testing"
|
||||
|
||||
"github.com/silas/dag"
|
||||
)
|
||||
|
||||
func checkErr(t *testing.T, err error) {
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
}
|
||||
|
||||
func TestDag(t *testing.T) {
|
||||
d1 := &dag.AcyclicGraph{}
|
||||
d2 := &dag.AcyclicGraph{}
|
||||
d2v1 := d2.Add(&node{"Substep.Create"})
|
||||
v1 := d1.Add(&node{"AccountService.Create"})
|
||||
v2 := d1.Add(&node{"AuthzService.Create"})
|
||||
v3 := d1.Add(&node{"AuthnService.Create"})
|
||||
v4 := d1.Add(&node{"ProjectService.Create"})
|
||||
v5 := d1.Add(&node{"ContactService.Create"})
|
||||
v6 := d1.Add(&node{"NetworkService.Create"})
|
||||
v7 := d1.Add(&node{"MailerService.Create"})
|
||||
v8 := d1.Add(&node{"NestedService.Create"})
|
||||
v9 := d1.Add(d2v1)
|
||||
d1.Connect(dag.BasicEdge(v1, v2))
|
||||
d1.Connect(dag.BasicEdge(v1, v3))
|
||||
d1.Connect(dag.BasicEdge(v1, v4))
|
||||
d1.Connect(dag.BasicEdge(v1, v5))
|
||||
d1.Connect(dag.BasicEdge(v1, v6))
|
||||
d1.Connect(dag.BasicEdge(v1, v7))
|
||||
d1.Connect(dag.BasicEdge(v7, v8))
|
||||
d1.Connect(dag.BasicEdge(v8, v9))
|
||||
|
||||
if err := d1.Validate(); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
d1.TransitiveReduction()
|
||||
|
||||
var steps [][]string
|
||||
fn := func(n dag.Vertex, idx int) error {
|
||||
if idx == 0 {
|
||||
steps = make([][]string, 1, 1)
|
||||
steps[0] = make([]string, 0, 1)
|
||||
} else if idx >= len(steps) {
|
||||
tsteps := make([][]string, idx+1, idx+1)
|
||||
copy(tsteps, steps)
|
||||
steps = tsteps
|
||||
steps[idx] = make([]string, 0, 1)
|
||||
}
|
||||
steps[idx] = append(steps[idx], fmt.Sprintf("%s", n))
|
||||
return nil
|
||||
}
|
||||
|
||||
start := &node{"AccountService.Create"}
|
||||
err := d1.SortedDepthFirstWalk([]dag.Vertex{start}, fn)
|
||||
checkErr(t, err)
|
||||
if len(steps) != 4 {
|
||||
t.Fatalf("invalid steps: %#+v", steps)
|
||||
}
|
||||
if steps[3][0] != "Substep.Create" {
|
||||
t.Fatalf("invalid last step: %#+v", steps)
|
||||
}
|
||||
}
|
||||
7
flow/flow.go
Normal file
7
flow/flow.go
Normal file
@ -0,0 +1,7 @@
|
||||
// Package flow is an interface used for saga pattern messaging
|
||||
package flow
|
||||
|
||||
type Step interface {
|
||||
// Endpoint returns service_name.service_method
|
||||
Endpoint() string
|
||||
}
|
||||
2
go.mod
2
go.mod
@ -6,10 +6,12 @@ require (
|
||||
github.com/dgrijalva/jwt-go v3.2.0+incompatible
|
||||
github.com/ef-ds/deque v1.0.4
|
||||
github.com/google/uuid v1.2.0
|
||||
github.com/heimdalr/dag v1.0.1 // indirect
|
||||
github.com/imdario/mergo v0.3.11
|
||||
github.com/kr/text v0.2.0 // indirect
|
||||
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
|
||||
github.com/patrickmn/go-cache v2.1.0+incompatible
|
||||
github.com/silas/dag v0.0.0-20210121180416-41cf55125c34 // indirect
|
||||
golang.org/x/net v0.0.0-20210119194325-5f4716e94777
|
||||
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f // indirect
|
||||
)
|
||||
|
||||
10
go.sum
10
go.sum
@ -3,8 +3,13 @@ github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumC
|
||||
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
|
||||
github.com/ef-ds/deque v1.0.4 h1:iFAZNmveMT9WERAkqLJ+oaABF9AcVQ5AjXem/hroniI=
|
||||
github.com/ef-ds/deque v1.0.4/go.mod h1:gXDnTC3yqvBcHbq2lcExjtAcVrOnJCbMcZXmuj8Z4tg=
|
||||
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/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/google/uuid v1.2.0 h1:qJYtXnJRWmpe7m/3XlyhrsLrEURqHRM2kxzoxXqyUDs=
|
||||
github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
|
||||
github.com/heimdalr/dag v1.0.1 h1:iR2K3DSUFDYx0GeV7iXBnZkedWS1xePSGrylQ197uxg=
|
||||
github.com/heimdalr/dag v1.0.1/go.mod h1:t+ZkR+sjKL4xhlE1B9rwpvwfo+x+2R0363efS+Oghns=
|
||||
github.com/imdario/mergo v0.3.11 h1:3tnifQM4i+fbajXKBHXWEH+KvNHqojZ778UH75j3bGA=
|
||||
github.com/imdario/mergo v0.3.11/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
|
||||
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
|
||||
@ -15,13 +20,12 @@ github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWb
|
||||
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
|
||||
github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
|
||||
github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
|
||||
github.com/unistack-org/micro v1.18.0 h1:EbFiII0bKV0Xcua7o6J30MFmm4/g0Hv3ECOKzsUBihU=
|
||||
github.com/silas/dag v0.0.0-20210121180416-41cf55125c34 h1:vBfVmA5mZhsQa2jr1FOL9nfA37N/jnbBmi5XUfviVTI=
|
||||
github.com/silas/dag v0.0.0-20210121180416-41cf55125c34/go.mod h1:7RTUFBdIRC9nZ7/3RyRNH1bdqIShrDejd1YbLwgPS+I=
|
||||
golang.org/x/net v0.0.0-20210119194325-5f4716e94777 h1:003p0dJM77cxMSyCPFphvZf/Y5/NXf5fzg6ufd1/Oew=
|
||||
golang.org/x/net v0.0.0-20210119194325-5f4716e94777/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
|
||||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw=
|
||||
golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
|
||||
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
|
||||
golang.org/x/text v0.3.3 h1:cokOdA+Jmi5PJGXLlLllQSgYigAEfHXJAERHVMaCc2k=
|
||||
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
|
||||
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
|
||||
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user