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Migrates alerts to an object-oriented implementation

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This commit is contained in:
Matteo Biscosi 2020-12-22 14:46:26 +01:00
parent e24ef4ef35
commit bcf2c2c1ed
95 changed files with 1923 additions and 1522 deletions
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60
scripts/lua/modules/alert_definitions/alert_too_many_drops.lua
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@ -2,43 +2,61 @@
-- (C) 2019-20 - ntop.org
--
local alert_keys = require "alert_keys"
-- ##############################################
-- #######################################################
local alert_keys = require "alert_keys"
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
-- Import the classes library.
local classes = require "classes"
-- Make sure to import the Superclass!
local alert = require "alert"
-- ##############################################
local alert_too_many_drops = classes.class(alert)
-- ##############################################
alert_too_many_drops.meta = {
alert_key = alert_keys.ntopng.alert_too_many_drops,
i18n_title = "alerts_dashboard.too_many_drops",
icon = "fas fa-tint",
}
-- ##############################################
-- @brief Prepare an alert table used to generate the alert
-- @param alert_severity A severity as defined in `alert_severities`
-- @param alert_granularity A granularity as defined in `alert_consts.alerts_granularities`
-- @param drops The number of dropped packets
-- @param drop_perc The percentage of dropped packets with reference to the total number of packets (recevied + dropped)
-- @param threshold A number indicating the threshold compared with `drop_perc`
-- @return A table with the alert built
local function createTooManyDrops(alert_severity, alert_granularity, drops, drop_perc, threshold)
return({
alert_severity = alert_severity,
alert_granularity = alert_granularity,
alert_type_params = {
drops = drops, drop_perc = drop_perc, edge = threshold,
},
})
function alert_too_many_drops:init(drops, drop_perc, threshold)
-- Call the paren constructor
self.super:init()
self.alert_type_params = {
drops = drops,
drop_perc = drop_perc,
edge = threshold,
}
end
-- #######################################################
local function formatTooManyPacketDrops(ifid, alert, threshold_info)
-- @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_too_many_drops.format(ifid, alert, alert_type_params)
local alert_consts = require("alert_consts")
local entity = alert_consts.formatAlertEntity(ifid, alert_consts.alertEntityRaw(alert["alert_entity"]), alert["alert_entity_val"])
local max_drop_perc = threshold_info.threshold or 0
local max_drop_perc = alert_type_params.threshold or 0
return(i18n("alert_messages.too_many_drops", {iface = entity, max_drops = max_drop_perc}))
end
-- #######################################################
return {
alert_key = alert_keys.ntopng.alert_too_many_drops,
i18n_title = "alerts_dashboard.too_many_drops",
icon = "fas fa-tint",
i18n_description = formatTooManyPacketDrops,
creator = createTooManyDrops
}
return alert_too_many_drops