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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,161 @@ | ||
| package metric | ||
|
|
||
| import "testing" | ||
| import ( | ||
| "context" | ||
| "errors" | ||
| "github.com/cactus/go-statsd-client/statsd" | ||
| log2 "github.com/cfchou/go-gentle/extra/log" | ||
| "gopkg.in/cfchou/go-gentle.v3/gentle" | ||
| "gopkg.in/inconshreveable/log15.v2" | ||
| "log" | ||
| "net" | ||
| "sync" | ||
| "time" | ||
| ) | ||
|
|
||
| func TestNewStatsdMetric(t *testing.T) { | ||
| func ExampleNewStatsdMetric() { | ||
| subPath := "example.test1" | ||
| client, _ := statsd.NewClient("127.0.0.1:8125", "extra") | ||
| opts := gentle.NewRateLimitedStreamOpts("", "test1", | ||
| gentle.NewTokenBucketRateLimit(10*time.Millisecond, 1)) | ||
| opts.Metric = NewStatsdMetric(subPath, client) | ||
| opts.Log = log2.NewLog15Adapter(log15.New()) | ||
|
|
||
| var upstream gentle.SimpleStream = func(ctx context.Context) (gentle.Message, error) { | ||
| return gentle.SimpleMessage(""), nil | ||
| } | ||
| stream := gentle.NewRateLimitedStream(opts, upstream) | ||
|
|
||
| // listen like "nc 8125 -l -u" | ||
| conn, err := net.ListenPacket("udp", ":8125") | ||
| if err != nil { | ||
| log.Fatalf("ListenPacket err: %s\n", err) | ||
| } | ||
| defer conn.Close() | ||
| wg := &sync.WaitGroup{} | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| bs := make([]byte, 256) | ||
| // read 5 times should be enough | ||
| for i := 0; i < 5; i++ { | ||
| conn.SetReadDeadline(time.Now().Add(100 * time.Millisecond)) | ||
| n, _, err := conn.ReadFrom(bs) | ||
| if err != nil { | ||
| log.Printf("ReadFrom err: %s\n", err) | ||
| continue | ||
| } | ||
| // timer: | ||
| // extra.rate.test1.ok:0.020875|ms | ||
| // counter: | ||
| // extra.rate.test1.ok:1|c | ||
| log.Println(string(bs[:n])) | ||
| } | ||
| }() | ||
|
|
||
| stream.Get(context.Background()) | ||
| wg.Wait() | ||
| // Output: | ||
| } | ||
|
|
||
| func ExampleNewStatsdRetryMetric() { | ||
| subPath := "example.test2.result" | ||
| retrySubPath := "example.test2.retry" | ||
| client, _ := statsd.NewClient("127.0.0.1:8125", "extra") | ||
| factory := gentle.NewConstantBackOffFactory( | ||
| gentle.NewConstantBackOffFactoryOpts(10*time.Millisecond, time.Second)) | ||
| opts := gentle.NewRetryStreamOpts("", "test2", factory) | ||
| opts.RetryMetric = NewStatsdRetryMetric(subPath, retrySubPath, client) | ||
| opts.Log = log2.NewLog15Adapter(log15.New()) | ||
|
|
||
| count := 5 | ||
| var upstream gentle.SimpleStream = func(ctx context.Context) (gentle.Message, error) { | ||
| if count == 0 { | ||
| return gentle.SimpleMessage(""), nil | ||
| } | ||
| count-- | ||
| return nil, errors.New("fake err") | ||
| } | ||
| stream := gentle.NewRetryStream(opts, upstream) | ||
|
|
||
| // listen like "nc 8125 -l -u" | ||
| conn, err := net.ListenPacket("udp", ":8125") | ||
| if err != nil { | ||
| log.Fatalf("ListenPacket err: %s\n", err) | ||
| } | ||
| defer conn.Close() | ||
| wg := &sync.WaitGroup{} | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| bs := make([]byte, 256) | ||
| // read 5 times should be enough | ||
| for i := 0; i < 5; i++ { | ||
| conn.SetReadDeadline(time.Now().Add(100 * time.Millisecond)) | ||
| n, _, err := conn.ReadFrom(bs) | ||
| if err != nil { | ||
| log.Printf("ReadFrom err: %s\n", err) | ||
| continue | ||
| } | ||
| // timer: | ||
| // extra.example.test2.result.ok:56.73204|ms | ||
| // counter: | ||
| // extra.example.test2.result.ok:1|c | ||
| // retry-counter: | ||
| // extra.example.test2.retry.ok:5|c | ||
| log.Println(string(bs[:n])) | ||
| } | ||
| }() | ||
|
|
||
| stream.Get(context.Background()) | ||
| wg.Wait() | ||
| // Output: | ||
| } | ||
|
|
||
| func ExampleNewStatsdCbMetric() { | ||
| gentle.CircuitReset() | ||
| subPath := "example.test3.result" | ||
| cbSubPath := "example.test3.cb" | ||
| client, _ := statsd.NewClient("127.0.0.1:8125", "extra") | ||
| opts := gentle.NewCircuitStreamOpts("", "test3", "test_circuit") | ||
| opts.CbMetric = NewStatsdCbMetric(subPath, cbSubPath, client) | ||
| opts.Log = log2.NewLog15Adapter(log15.New()) | ||
|
|
||
| var upstream gentle.SimpleStream = func(ctx context.Context) (gentle.Message, error) { | ||
| return nil, gentle.ErrCbOpen | ||
| } | ||
| stream := gentle.NewCircuitStream(opts, upstream) | ||
|
|
||
| // listen like "nc 8125 -l -u" | ||
| conn, err := net.ListenPacket("udp", ":8125") | ||
| if err != nil { | ||
| log.Fatalf("ListenPacket err: %s\n", err) | ||
| } | ||
| defer conn.Close() | ||
| wg := &sync.WaitGroup{} | ||
| wg.Add(1) | ||
| go func() { | ||
| defer wg.Done() | ||
| bs := make([]byte, 256) | ||
| // read 5 times should be enough | ||
| for i := 0; i < 5; i++ { | ||
| conn.SetReadDeadline(time.Now().Add(100 * time.Millisecond)) | ||
| n, _, err := conn.ReadFrom(bs) | ||
| if err != nil { | ||
| log.Printf("ReadFrom err: %s\n", err) | ||
| continue | ||
| } | ||
| // timer: | ||
| // extra.example.test3.result.err:1.358839|ms | ||
| // counter: | ||
| // extra.example.test3.result.err:1|c | ||
| // cb-error-counter: | ||
| // extra.example.test3.cb.open:1|c | ||
| log.Println(string(bs[:n])) | ||
| } | ||
| }() | ||
|
|
||
| stream.Get(context.Background()) | ||
| wg.Wait() | ||
| // Output: | ||
| } |
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