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orbit/sdk/go/examples/task-query/main.go

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// task-query 演示业务键精确匹配、创建时间边界和任务摘要分页,不启动Worker。
package main
import (
"context"
"encoding/json"
"errors"
"fmt"
"os"
"time"
orbit "git.yuntuo.hk/k2safe/orbit/sdk/go"
)
func main() {
if err := run(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
}
func run() error {
token, queue := os.Getenv("ORBIT_TOKEN"), os.Getenv("ORBIT_QUEUE_ID")
if path := os.Getenv("ORBIT_CREDENTIALS_FILE"); path != "" {
raw, err := os.ReadFile(path)
if err != nil {
return fmt.Errorf("read private credentials: %w", err)
}
var credentials struct {
Token string `json:"token"`
QueueID string `json:"queue_id"`
}
if err := json.Unmarshal(raw, &credentials); err != nil {
return fmt.Errorf("invalid credentials file")
}
if token == "" {
token = credentials.Token
}
if queue == "" {
queue = credentials.QueueID
}
}
client, err := orbit.NewClient(os.Getenv("ORBIT_URL"), orbit.Options{Token: token})
if err != nil {
return err
}
if queue == "" {
return fmt.Errorf("ORBIT_QUEUE_ID is required")
}
ctx, cancel := context.WithTimeout(context.Background(), 20*time.Second)
defer cancel()
op, err := orbit.NewWorkerMessageID()
if err != nil {
return err
}
businessKey := "对象 /+% é " + op + " "
var tasks []orbit.Task
for i, key := range []string{businessKey, businessKey, businessKey[:len(businessKey)-1]} {
payload := json.RawMessage(`{"object_ref":"examples/input","format":"text"}`)
if i == 1 {
payload = json.RawMessage(`{"object_ref":"examples/input","format":"json"}`)
}
out, err := client.SubmitTask(ctx, fmt.Sprintf("query-%s-%d", op, i), orbit.SubmitTaskRequest{QueueID: queue, Handler: "query." + op, HandlerVersion: "v1", PayloadVersion: "v1", Payload: payload, BusinessKey: key, TaskTimeoutMS: 60000})
if err != nil {
return err
}
tasks = append(tasks, out.Task)
}
// 改参数使用新身份与相同关联键,读取旧任务确认原输入仍保留。
for _, task := range tasks[:2] {
current, err := client.GetTask(ctx, task.ID)
if err != nil {
return err
}
if string(current.Payload) != string(task.Payload) {
return errors.New("new linked submission changed existing input")
}
}
if tasks[0].ID == tasks[1].ID || string(tasks[0].Payload) == string(tasks[1].Payload) {
return errors.New("parameter change did not create an independent task")
}
from, before := tasks[0].CreatedAt, tasks[2].CreatedAt.Add(time.Microsecond)
query := orbit.ListTasksRequest{QueueID: queue, State: orbit.TaskWaiting, BusinessKey: businessKey, CreatedFrom: &from, CreatedBefore: &before, Limit: 1}
matched, pages := 0, 0
for {
page, err := client.ListTasks(ctx, query)
if err != nil {
return err
}
pages++
for _, task := range page.Items {
if task.BusinessKey != businessKey {
return errors.New("business key was not exact")
}
matched++
}
if page.NextCursor == "" {
break
}
query.Cursor = page.NextCursor
}
if matched != 2 || pages != 2 {
return errors.New("unexpected filtered pages")
}
query.Cursor = ""
end := tasks[1].CreatedAt
query.CreatedBefore = &end
bounded, err := client.ListTasks(ctx, query)
if err != nil {
return err
}
if len(bounded.Items) != 1 || bounded.Items[0].ID != tasks[0].ID {
return errors.New("exclusive time boundary failed")
}
for i, task := range tasks {
if _, err := client.CancelTask(ctx, task.ID, fmt.Sprintf("query-cancel-%s-%d", op, i), orbit.CancelTaskRequest{ExpectedRevision: task.Revision, Reason: "complete query example"}); err != nil {
return err
}
}
fmt.Printf("matched=%d pages=%d before_excluded=true original_payload_preserved=true cancelled=%d\n", matched, pages, len(tasks))
return nil
}