ntopng/scripts/lua/get_internals_periodic_activities_stats.lua

--
-- (C) 2019 - ntop.org
--

local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path

require "lua_utils"
local format_utils = require("format_utils")
local json = require("dkjson")
local ts_utils = require "ts_utils"

sendHTTPContentTypeHeader('application/json')

-- ################################################

local iffilter           = _GET["iffilter"]
local periodic_script  = _GET["periodic_script"]
local currentPage        = _GET["currentPage"]
local perPage            = _GET["perPage"]
local sortColumn         = _GET["sortColumn"]
local sortOrder          = _GET["sortOrder"]

local sortPrefs = "internals_periodic_activites_data"

-- ################################################

if isEmptyString(sortColumn) or sortColumn == "column_" then
   sortColumn = getDefaultTableSort(sortPrefs)
else
   if((sortColumn ~= "column_")
      and (sortColumn ~= "")) then
      tablePreferences("sort_"..sortPrefs, sortColumn)
   end
end

if isEmptyString(_GET["sortColumn"]) then
   sortOrder = getDefaultTableSortOrder(sortPrefs, true)
end

if((_GET["sortColumn"] ~= "column_")
   and (_GET["sortColumn"] ~= "")) then
   tablePreferences("sort_order_"..sortPrefs, sortOrder, true)
end

if(currentPage == nil) then
   currentPage = 1
else
   currentPage = tonumber(currentPage)
end

if(perPage == nil) then
   perPage = getDefaultTableSize()
else
   perPage = tonumber(perPage)
   tablePreferences("rows_number", perPage)
end

local sOrder = ternary(sortOrder == "asc", asc_insensitive, rev_insensitive)
local to_skip = (currentPage-1) * perPage

-- ################################################

local ifaces_scripts_stats = {}

for _, iface in pairs(interface.getIfNames()) do
   if iffilter and iffilter ~= tostring(getInterfaceId(iface)) then
      goto continue
   end

   interface.select(iface)
   local scripts_stats = interface.getPeriodicActivitiesStats()

   -- Flatten out the nested tables
   for script, stats in pairs(scripts_stats) do
      ifaces_scripts_stats[iface.."_"..script] = {iface = iface, ifid = getInterfaceId(iface), script = script, stats = stats}
   end

   ::continue::
end

local totalRows = 0
local sort_to_key = {}

for k, script_stats in pairs(ifaces_scripts_stats) do
   local stats = script_stats.stats

   if periodic_script then
      if script_stats.script ~= periodic_script then
	 goto continue
      end
   end

   if(sortColumn == "column_max_duration") then
      sort_to_key[k] = script_stats.stats.duration.max_duration_ms
   elseif(sortColumn == "column_last_duration") then
      sort_to_key[k] = script_stats.stats.duration.last_duration_ms
   elseif(sortColumn == "column_periodic_activity_name") then
      sort_to_key[k] = script_stats.script
   elseif(sortColumn == "column_name") then
      sort_to_key[k] = getInterfaceName(script_stats.ifid)
   else
      sort_to_key[k] = script_stats.ifid
   end

   totalRows = totalRows + 1

   ::continue::
end

-- ################################################

local res = {}
local i = 0

for key in pairsByValues(sort_to_key, sOrder) do
   if i >= to_skip + perPage then
      break
   end

   if i >= to_skip then
      local record = {}
      local script_stats = ifaces_scripts_stats[key]

      local max_duration = script_stats.stats.duration.max_duration_ms
      local last_duration = script_stats.stats.duration.last_duration_ms

      record["column_key"] = key
      record["column_ifid"] = string.format("%i", script_stats.ifid)
      record["column_max_duration"] = ternary(max_duration > 0, format_utils.formatMillis(max_duration), '')
      record["column_last_duration"] = ternary(last_duration > 0, format_utils.formatMillis(last_duration), '')
      record["column_name"] = getInterfaceName(script_stats.ifid)
      record["column_periodic_activity_name"] = script_stats.script

      if iffilter then
	 if ts_utils.exists("periodic_script:duration_ms", {ifid = iffilter, periodic_script = script_stats.script}) then
	    record["column_chart"] = '<A HREF=\"'..ntop.getHttpPrefix()..'/lua/periodic_script_details.lua?periodic_script='..script_stats.script..'\"><i class=\'fa fa-area-chart fa-lg\'></i></A>'
	 end
      end

      res[#res + 1] = record
   end

   i = i + 1
end

-- ################################################

local result = {}
result["perPage"] = perPage
result["currentPage"] = currentPage
result["totalRows"] = totalRows
result["data"] = res
result["sort"] = {{sortColumn, sortOrder}}

print(json.encode(result))