ntopng/scripts/lua/rest/v2/get/redis/redis_stats.lua
2022-02-11 12:07:23 +01:00

123 lines
2.9 KiB
Lua

--
-- (C) 2019-22 - ntop.org
--
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
require "lua_utils"
local script_manager = require("script_manager")
local rest_utils = require("rest_utils")
-- ################################################
local currentPage = _GET["currentPage"]
local perPage = _GET["perPage"]
local sortColumn = _GET["sortColumn"]
local sortOrder = _GET["sortOrder"]
local cmd_ids_filter = _GET["custom_hosts"]
local sortPrefs = "redis_commands_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
-- ################################################
if(cmd_ids_filter) then
cmd_ids_filter = swapKeysValues(string.split(cmd_ids_filter, ",") or {cmd_ids_filter})
end
local commands_stats = ntop.getCacheStats() or {}
local totalRows = 0
local sort_to_key = {}
for command, hits in pairs(commands_stats) do
if(cmd_ids_filter and (cmd_ids_filter[command] == nil)) then
goto continue
end
if(sortColumn == "column_command") then
sort_to_key[command] = command
else
sort_to_key[command] = hits
end
totalRows = totalRows + 1
::continue::
end
-- ################################################
local res = {}
local i = 0
local charts_available = script_manager.systemTimeseriesEnabled()
for key in pairsByValues(sort_to_key, sOrder) do
if i >= to_skip + perPage then
break
end
if (i >= to_skip) then
local chart = ""
local value = commands_stats[key]
if(charts_available) then
chart = '<a href="?page=historical&redis_command='..key..'&ts_schema=redis:hits"><i class=\'fas fa-chart-area fa-lg\'></i></a>'
end
res[#res + 1] = {
column_key = key,
column_command = string.upper(string.sub(key, 5)),
column_chart = chart,
column_hits = value,
}
end
i = i + 1
end
-- ################################################
local result = {}
result["perPage"] = perPage
result["currentPage"] = currentPage
result["totalRows"] = totalRows
result["data"] = res
result["sort"] = {{sortColumn, sortOrder}}
rest_utils.answer(rest_utils.consts.success.ok, result)