|
| 1 | +package asyncjobs |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "errors" |
| 6 | + "fmt" |
| 7 | + "log" |
| 8 | + "time" |
| 9 | + |
| 10 | + "github.com/nats-io/jsm.go" |
| 11 | + "github.com/nats-io/nats.go" |
| 12 | + . "github.com/onsi/ginkgo/v2" |
| 13 | + . "github.com/onsi/gomega" |
| 14 | +) |
| 15 | + |
| 16 | +const ( |
| 17 | + timeout = 1 // sec |
| 18 | + topic = "test" |
| 19 | +) |
| 20 | + |
| 21 | +var _ = Describe("Events", func() { |
| 22 | + BeforeEach(func() { |
| 23 | + log.SetOutput(GinkgoWriter) |
| 24 | + }) |
| 25 | + |
| 26 | + It("Should occur for a compelted task", func() { |
| 27 | + withJetStream(func(nc *nats.Conn, mgr *jsm.Manager) { |
| 28 | + client, err := NewClient(NatsConn(nc)) |
| 29 | + Expect(err).ToNot(HaveOccurred()) |
| 30 | + |
| 31 | + testCount := 1 |
| 32 | + firstID := "" |
| 33 | + |
| 34 | + ctx, cancel := context.WithTimeout(context.Background(), timeout*time.Second) |
| 35 | + defer cancel() |
| 36 | + |
| 37 | + for range testCount { |
| 38 | + task, err := NewTask(topic, map[string]string{"hello": "world"}) |
| 39 | + Expect(err).ToNot(HaveOccurred()) |
| 40 | + |
| 41 | + if firstID == "" { |
| 42 | + firstID = task.ID |
| 43 | + } |
| 44 | + |
| 45 | + err = client.EnqueueTask(ctx, task) |
| 46 | + Expect(err).ToNot(HaveOccurred()) |
| 47 | + } |
| 48 | + |
| 49 | + router := NewTaskRouter() |
| 50 | + router.HandleFunc(topic, func(ctx context.Context, _ Logger, _ *Task) (any, error) { |
| 51 | + return "success", nil |
| 52 | + }) |
| 53 | + |
| 54 | + subscription, err := nc.SubscribeSync(EventsSubjectWildcard) |
| 55 | + Expect(err).ToNot(HaveOccurred()) |
| 56 | + |
| 57 | + // run client |
| 58 | + go func() { |
| 59 | + err = client.Run(ctx, router) |
| 60 | + Expect(err).ToNot(HaveOccurred()) |
| 61 | + }() |
| 62 | + |
| 63 | + // run event listener |
| 64 | + for { |
| 65 | + msg, err := subscription.NextMsg(timeout * time.Second) |
| 66 | + if err != nil { |
| 67 | + if errors.Is(err, nats.ErrTimeout) { |
| 68 | + // it's okay |
| 69 | + break |
| 70 | + } else { |
| 71 | + panic(err) |
| 72 | + } |
| 73 | + } |
| 74 | + |
| 75 | + event, kind, err := ParseEventJSON(msg.Data) |
| 76 | + Expect(err).ToNot(HaveOccurred()) |
| 77 | + |
| 78 | + switch e := event.(type) { |
| 79 | + case TaskStateChangeEvent: |
| 80 | + if e.LastErr == "" { |
| 81 | + fmt.Printf("[%s] %s: queue: %s type: %s tries: %d state: %s\n", e.TimeStamp.Format("15:04:05"), e.TaskID, e.Queue, e.TaskType, e.Tries, e.State) |
| 82 | + } else { |
| 83 | + fmt.Printf("[%s] %s: queue: %s type: %s tries: %d state: %s error: %s\n", e.TimeStamp.Format("15:04:05"), e.TaskID, e.Queue, e.TaskType, e.Tries, e.State, e.LastErr) |
| 84 | + } |
| 85 | + |
| 86 | + case LeaderElectedEvent: |
| 87 | + fmt.Printf("[%s] %s: new %s leader\n", e.TimeStamp.Format("15:04:05"), e.Name, e.Component) |
| 88 | + |
| 89 | + default: |
| 90 | + fmt.Printf("[%s] Unknown event type %s\n", time.Now().UTC().Format("15:04:05"), kind) |
| 91 | + } |
| 92 | + } |
| 93 | + }) |
| 94 | + }) |
| 95 | + |
| 96 | + It("Should occur for a terminated task", func() { |
| 97 | + withJetStream(func(nc *nats.Conn, mgr *jsm.Manager) { |
| 98 | + client, err := NewClient(NatsConn(nc)) |
| 99 | + Expect(err).ToNot(HaveOccurred()) |
| 100 | + |
| 101 | + testCount := 1 |
| 102 | + firstID := "" |
| 103 | + |
| 104 | + ctx, cancel := context.WithTimeout(context.Background(), timeout*time.Second) |
| 105 | + defer cancel() |
| 106 | + |
| 107 | + for range testCount { |
| 108 | + task, err := NewTask(topic, map[string]string{"hello": "world"}) |
| 109 | + Expect(err).ToNot(HaveOccurred()) |
| 110 | + |
| 111 | + if firstID == "" { |
| 112 | + firstID = task.ID |
| 113 | + } |
| 114 | + |
| 115 | + err = client.EnqueueTask(ctx, task) |
| 116 | + Expect(err).ToNot(HaveOccurred()) |
| 117 | + } |
| 118 | + |
| 119 | + router := NewTaskRouter() |
| 120 | + router.HandleFunc(topic, func(ctx context.Context, _ Logger, _ *Task) (any, error) { |
| 121 | + return nil, ErrTerminateTask |
| 122 | + }) |
| 123 | + |
| 124 | + subscription, err := nc.SubscribeSync(EventsSubjectWildcard) |
| 125 | + Expect(err).ToNot(HaveOccurred()) |
| 126 | + |
| 127 | + // run client |
| 128 | + go func() { |
| 129 | + err = client.Run(ctx, router) |
| 130 | + Expect(err).ToNot(HaveOccurred()) |
| 131 | + }() |
| 132 | + |
| 133 | + // run event listener |
| 134 | + for { |
| 135 | + msg, err := subscription.NextMsg(timeout * time.Second) |
| 136 | + if err != nil { |
| 137 | + if errors.Is(err, nats.ErrTimeout) { |
| 138 | + // it's okay |
| 139 | + break |
| 140 | + } else { |
| 141 | + panic(err) |
| 142 | + } |
| 143 | + } |
| 144 | + |
| 145 | + event, kind, err := ParseEventJSON(msg.Data) |
| 146 | + Expect(err).ToNot(HaveOccurred()) |
| 147 | + |
| 148 | + switch e := event.(type) { |
| 149 | + case TaskStateChangeEvent: |
| 150 | + if e.LastErr == "" { |
| 151 | + fmt.Printf("[%s] %s: queue: %s type: %s tries: %d state: %s\n", e.TimeStamp.Format("15:04:05"), e.TaskID, e.Queue, e.TaskType, e.Tries, e.State) |
| 152 | + } else { |
| 153 | + fmt.Printf("[%s] %s: queue: %s type: %s tries: %d state: %s error: %s\n", e.TimeStamp.Format("15:04:05"), e.TaskID, e.Queue, e.TaskType, e.Tries, e.State, e.LastErr) |
| 154 | + } |
| 155 | + |
| 156 | + case LeaderElectedEvent: |
| 157 | + fmt.Printf("[%s] %s: new %s leader\n", e.TimeStamp.Format("15:04:05"), e.Name, e.Component) |
| 158 | + |
| 159 | + default: |
| 160 | + fmt.Printf("[%s] Unknown event type %s\n", time.Now().UTC().Format("15:04:05"), kind) |
| 161 | + } |
| 162 | + } |
| 163 | + }) |
| 164 | + }) |
| 165 | +}) |
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