feat: Introduce activationThreshold/minMetricValue for Solace Scaler

pkg/scalers/solace_scaler.go

@@ -41,6 +41,9 @@ const (
 	// Metric Targets
 	solaceMetaMsgCountTarget      = "messageCountTarget"
 	solaceMetaMsgSpoolUsageTarget = "messageSpoolUsageTarget"
+	// Metric Activation Targets
+	solaceMetaActivationMsgCountTarget      = "activationMessageCountTarget"
+	solaceMetaActivationMsgSpoolUsageTarget = "activationMessageSpoolUsageTarget"
 	// Trigger type identifiers
 	solaceTriggermsgcount      = "msgcount"
 	solaceTriggermsgspoolusage = "msgspoolusage"
@@ -74,6 +77,9 @@ type SolaceMetadata struct {
 	// Target Message Count
 	msgCountTarget      int64
 	msgSpoolUsageTarget int64 // Spool Use Target in Megabytes
+	// Activation Target Message Count
+	activationMsgCountTarget      int
+	activationMsgSpoolUsageTarget int // Spool Use Target in Megabytes
 	// Scaler index
 	scalerIndex int
 }
@@ -177,6 +183,26 @@ func parseSolaceMetadata(config *ScalerConfig) (*SolaceMetadata, error) {
 		return nil, fmt.Errorf("no target value found in the scaler configuration")
 	}
 
+	//	GET ACTIVATION METRIC TARGET VALUES
+	//	GET activationMsgCountTarget
+	meta.activationMsgCountTarget = 0
+	if val, ok := config.TriggerMetadata[solaceMetaActivationMsgCountTarget]; ok && val != "" {
+		if activationMsgCountTarget, err := strconv.Atoi(val); err == nil {
+			meta.activationMsgCountTarget = activationMsgCountTarget
+		} else {
+			return nil, fmt.Errorf("can't parse [%s], not a valid integer: %s", solaceMetaActivationMsgCountTarget, err)
+		}
+	}
+	//	GET activationMsgSpoolUsageTarget
+	meta.activationMsgSpoolUsageTarget = 0
+	if val, ok := config.TriggerMetadata[solaceMetaActivationMsgSpoolUsageTarget]; ok && val != "" {
+		if activationMsgSpoolUsageTarget, err := strconv.Atoi(val); err == nil {
+			meta.activationMsgSpoolUsageTarget = activationMsgSpoolUsageTarget * 1024 * 1024
+		} else {
+			return nil, fmt.Errorf("can't parse [%s], not a valid integer: %s", solaceMetaActivationMsgSpoolUsageTarget, err)
+		}
+	}
+
 	// Format Solace SEMP Queue Endpoint (REST URL)
 	meta.endpointURL = fmt.Sprintf(
 		solaceSempEndpointURLTemplate,
@@ -354,7 +380,7 @@ func (s *SolaceScaler) IsActive(ctx context.Context) (bool, error) {
 		solaceLog.Error(err, "call to semp endpoint failed")
 		return false, err
 	}
-	return (metricValues.msgCount > 0 || metricValues.msgSpoolUsage > 0), nil
+	return (metricValues.msgCount > s.metadata.activationMsgCountTarget || metricValues.msgSpoolUsage > s.metadata.activationMsgSpoolUsageTarget), nil
 }
 
 // Do Nothing - Satisfies Interface

pkg/scalers/solace_scaler_test.go

@@ -162,6 +162,40 @@ var testParseSolaceMetadata = []testSolaceMetadata{
 		1,
 		true,
 	},
+	// -Case - activationMsgSpoolUsageTarget non-numeric
+	{
+		"#011 - msgSpoolUsageTarget non-numeric",
+		map[string]string{
+			solaceMetaSempBaseURL:              soltestValidBaseURL,
+			solaceMetaMsgVpn:                   soltestValidVpn,
+			solaceMetaUsernameFromEnv:          "",
+			solaceMetaPasswordFromEnv:          "",
+			solaceMetaUsername:                 soltestValidUsername,
+			solaceMetaPassword:                 soltestValidPassword,
+			solaceMetaQueueName:                soltestValidQueueName,
+			solaceMetaMsgCountTarget:           "1",
+			solaceMetaActivationMsgCountTarget: "NOT_AN_INTEGER",
+		},
+		1,
+		true,
+	},
+	// -Case - activationMsgSpoolUsage non-numeric
+	{
+		"#012 - msgSpoolUsage non-numeric",
+		map[string]string{
+			solaceMetaSempBaseURL:                   soltestValidBaseURL,
+			solaceMetaMsgVpn:                        soltestValidVpn,
+			solaceMetaUsernameFromEnv:               "",
+			solaceMetaPasswordFromEnv:               "",
+			solaceMetaUsername:                      soltestValidUsername,
+			solaceMetaPassword:                      soltestValidPassword,
+			solaceMetaQueueName:                     soltestValidQueueName,
+			solaceMetaMsgSpoolUsageTarget:           "1",
+			solaceMetaActivationMsgSpoolUsageTarget: "NOT_AN_INTEGER",
+		},
+		1,
+		true,
+	},
 	// +Case - Pass with msgSpoolUsageTarget and not msgCountTarget
 	{
 		"#013 - brokerBaseUrl",