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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,199 @@ | ||
| package probe | ||
|
|
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| import ( | ||
| "os" | ||
| "os/signal" | ||
| "syscall" | ||
| "time" | ||
|
|
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| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/quickfixgo/quickfix" | ||
| "github.com/rs/zerolog" | ||
| "github.com/spf13/cobra" | ||
|
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| "sylr.dev/fix/config" | ||
| "sylr.dev/fix/pkg/initiator" | ||
| "sylr.dev/fix/pkg/initiator/application" | ||
| "sylr.dev/fix/pkg/utils" | ||
| ) | ||
|
|
||
| var ( | ||
| optionProbeInterval time.Duration | ||
|
|
||
| status = make(chan result) | ||
| ) | ||
|
|
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| // ConfigCmd represents the buy command | ||
| var ProbeCmd = &cobra.Command{ | ||
| Use: "probe", | ||
| Short: "Test fix session", | ||
| Long: "Test fix session.", | ||
| RunE: Execute, | ||
| PersistentPreRunE: utils.MakePersistentPreRunE(Validate), | ||
| } | ||
|
|
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| func init() { | ||
| ProbeCmd.Flags().DurationVar(&optionProbeInterval, "probe-interval", 10*time.Second, "Interval between each probing") | ||
|
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| prometheus.MustRegister(metricFixSessionFailuresTotal) | ||
| prometheus.MustRegister(metricFixSessionSuccessesTotal) | ||
| prometheus.MustRegister(metricFixSessionStatus) | ||
| } | ||
|
|
||
| func Validate(_ *cobra.Command, _ []string) error { | ||
| return nil | ||
| } | ||
|
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| func Execute(_ *cobra.Command, _ []string) error { | ||
| logger := config.GetLogger() | ||
|
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| interrupt := make(chan os.Signal, 1) | ||
| signal.Notify(interrupt, os.Interrupt, syscall.SIGTERM) | ||
|
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| time.Sleep(time.Until(time.Now().Truncate(optionProbeInterval).Add(optionProbeInterval))) | ||
| ticker := time.NewTicker(optionProbeInterval) | ||
|
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| LOOP: | ||
| for { | ||
| select { | ||
| case signal := <-interrupt: | ||
| logger.Debug().Msgf("Received signal: %s", signal) | ||
| break LOOP | ||
|
|
||
| case <-ticker.C: | ||
| go probe() | ||
|
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| case result := <-status: | ||
| if result.connected { | ||
| metricFixSessionSuccessesTotal.WithLabelValues(result.context, result.session).Inc() | ||
| metricFixSessionStatus.WithLabelValues(result.context, result.session).Set(1.0) | ||
| } else { | ||
| metricFixSessionFailuresTotal.WithLabelValues(result.context, result.session).Inc() | ||
| metricFixSessionStatus.WithLabelValues(result.context, result.session).Set(0.0) | ||
| } | ||
| } | ||
| } | ||
|
|
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| return nil | ||
| } | ||
|
|
||
| // Metrics | ||
| var ( | ||
| metricFixSessionFailuresTotal = prometheus.NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Namespace: "fix", | ||
| Subsystem: "session", | ||
| Name: "failures_total", | ||
| Help: "Total number of session errors", | ||
| }, | ||
| []string{"context", "session"}, | ||
| ) | ||
| metricFixSessionSuccessesTotal = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: "fix", | ||
| Subsystem: "session", | ||
| Name: "successes_total", | ||
| Help: "Total number of session successes", | ||
| }, | ||
| []string{"context", "session"}, | ||
| ) | ||
| metricFixSessionStatus = prometheus.NewGaugeVec( | ||
| prometheus.GaugeOpts{ | ||
| Namespace: "fix", | ||
| Subsystem: "session", | ||
| Name: "status", | ||
| Help: "Status of the fix session", | ||
| }, | ||
| []string{"context", "session"}, | ||
| ) | ||
| ) | ||
|
|
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| type result struct { | ||
| context string | ||
| session string | ||
| connected bool | ||
| } | ||
|
|
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| func probe() { | ||
| options := config.GetOptions() | ||
| logger := config.GetLogger() | ||
|
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| logger.Info().Msgf("Start probing") | ||
|
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| contexts := config.GetContexts() | ||
|
|
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| for i, context := range contexts { | ||
| if len(context.Initiator) == 0 { | ||
| continue | ||
| } | ||
|
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| for j, session := range context.Sessions { | ||
| go func(context *config.Context, i int, session string) { | ||
| logger.Debug().Str("context", context.GetName()).Str("session", session).Msgf("Start probing session") | ||
|
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| // Make a copy of the context which has only one session. | ||
| contextSingleSession := *context | ||
| contextSingleSession.Sessions = nil | ||
| contextSingleSession.Sessions = context.Sessions[i : i+1] | ||
|
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| logger.Debug().Str("context", context.GetName()).Str("session", session).Strs("sessions", contextSingleSession.Sessions).Msgf("Copied context") | ||
|
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| settings, err := contextSingleSession.ToQuickFixInitiatorSettings() | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
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| app := application.NewInitiator() | ||
| app.Settings = settings | ||
| app.Logger = logger | ||
|
|
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| var quickfixLogger *zerolog.Logger | ||
| if options.QuickFixLogging { | ||
| quickfixLogger = logger | ||
| } | ||
|
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| init, err := initiator.Initiate(app, settings, quickfixLogger) | ||
| if err != nil { | ||
| logger.Error().Err(err).Str("context", context.GetName()).Str("session", session).Msg("Unable to initiate initiator") | ||
| status <- result{context: context.GetName(), session: session, connected: false} | ||
| return | ||
| } | ||
|
|
||
| // Start session | ||
| if err = init.Start(); err != nil { | ||
| logger.Error().Err(err).Str("context", context.GetName()).Str("session", session).Msg("Unable to start initiator") | ||
| status <- result{context: context.GetName(), session: session, connected: false} | ||
| return | ||
| } | ||
|
|
||
| defer func() { | ||
| app.Stop() | ||
| init.Stop() | ||
| _ = quickfix.UnregisterSession(app.SessionID) | ||
| }() | ||
|
|
||
| // Choose right timeout cli option > config > default value (5s) | ||
| var timeout time.Duration | ||
| if options.Timeout != time.Duration(0) { | ||
| timeout = options.Timeout | ||
| } else { | ||
| timeout = 5 * time.Second | ||
| } | ||
|
|
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| // Wait for session connection | ||
| select { | ||
| case <-time.After(timeout): | ||
| status <- result{context: context.GetName(), session: session, connected: false} | ||
|
|
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| case _, ok := <-app.Connected: | ||
| if !ok { | ||
| status <- result{context: context.GetName(), session: session, connected: false} | ||
| } else { | ||
| logger.Debug().Msgf("connected") | ||
| status <- result{context: context.GetName(), session: session, connected: true} | ||
| } | ||
| } | ||
| }(contexts[i], j, session) | ||
| } | ||
| } | ||
| } |
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