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This commit is contained in:
sujit
2024-09-27 19:30:22 +05:45
parent b35251f7a0
commit 2d334239ed
2 changed files with 21 additions and 10 deletions
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6
dag.go
View File

@@ -103,12 +103,12 @@ func (dag *DAG) TaskCallback(ctx context.Context, task *Task) error {
}
func (dag *DAG) AddNode(queue string, handler Handler, firstNode ...bool) {
consumer := NewConsumer(dag.brokerAddr)
consumer.RegisterHandler(queue, handler)
con := NewConsumer(dag.brokerAddr)
con.RegisterHandler(queue, handler)
dag.broker.NewQueue(queue)
n := &node{
queue: queue,
consumer: consumer,
consumer: con,
handler: handler,
}
if len(firstNode) > 0 && firstNode[0] {

25
examples/dag.go
View File

@@ -4,8 +4,9 @@ import (
"context"
"encoding/json"
"fmt"
"github.com/oarkflow/mq"
"time"
"github.com/oarkflow/mq"
)
func handleNode1(_ context.Context, task mq.Task) mq.Result {
@@ -40,15 +41,25 @@ func handleNode2(_ context.Context, task mq.Task) mq.Result {
}
func handleNode3(_ context.Context, task mq.Task) mq.Result {
result := `{"field": "node3", "item": %s}`
fmt.Printf("Processing task at node3: %s\n", string(task.Payload))
return mq.Result{Status: "completed", Payload: json.RawMessage(fmt.Sprintf(result, string(task.Payload)))}
var data map[string]any
err := json.Unmarshal(task.Payload, &data)
if err != nil {
return mq.Result{Error: err}
}
data["item"] = "Item processed in node3"
bt, _ := json.Marshal(data)
return mq.Result{Status: "completed", Payload: bt}
}
func handleNode4(_ context.Context, task mq.Task) mq.Result {
result := `{"field": "node4", "item": %s}`
fmt.Printf("Processing task at node4: %s\n", string(task.Payload))
return mq.Result{Status: "completed", Payload: json.RawMessage(fmt.Sprintf(result, string(task.Payload)))}
var data map[string]any
err := json.Unmarshal(task.Payload, &data)
if err != nil {
return mq.Result{Error: err}
}
data["item"] = "An Item processed in node4"
bt, _ := json.Marshal(data)
return mq.Result{Status: "completed", Payload: bt}
}
func main() {