Definition of SNMP polling error

scripts/lua/modules/alert_definitions/other/alert_snmp_device_polling_error.lua

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+--
+-- (C) 2019-24 - ntop.org
+--
+
+-- ##############################################
+
+local other_alert_keys = require "other_alert_keys"
+-- Import the classes library.
+local classes = require "classes"
+-- Make sure to import the Superclass!
+local alert = require "alert"
+local alert_entities = require "alert_entities"
+
+-- ##############################################
+
+local alert_snmp_device_polling_error = classes.class(alert)
+
+-- ##############################################
+
+alert_snmp_device_polling_error.meta = {
+   alert_key = other_alert_keys.alert_snmp_device_polling_error,
+   i18n_title = "alerts_dashboard.alert_snmp_device_polling_error_title",
+   icon = "fas fa-fw fa-power-off",
+   entities = {
+      alert_entities.snmp_device
+   },
+}
+
+-- ##############################################
+
+-- @brief Prepare an alert table used to generate the alert
+-- @param device_ip A string with the ip address of the snmp device
+-- @param device_name The device name
+-- @return A table with the alert built
+function alert_snmp_device_polling_error:init(device_ip, device_name, reason)
+   -- Call the parent constructor
+   self.super:init()
+
+   self.alert_type_params = {
+      device = device_ip,
+      device_name = device_name,
+      reason = reason
+   }
+end
+
+-- #######################################################
+
+-- @brief Format an alert into a human-readable string
+-- @param ifid The integer interface id of the generated alert
+-- @param alert The alert description table, including alert data such as the generating entity, timestamp, granularity, type
+-- @param alert_type_params Table `alert_type_params` as built in the `:init` method
+-- @return A human-readable string
+function alert_snmp_device_polling_error.format(ifid, alert, alert_type_params)
+   return(i18n("alerts_dashboard.alert_snmp_device_polling_error_description",
+	       {
+		  device = alert_type_params.device,
+		  url    = snmpDeviceUrl(alert_type_params.device),
+		  reason = alert_type_params.reason
+	       }
+	      )
+   )
+end
+
+-- #######################################################
+
+return alert_snmp_device_polling_error