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Add normalizeSeriesPoints

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emanuele-f 2019-11-07 17:15:06 +01:00
parent a4be8e169f
commit 2708450e96
1 changed files with 32 additions and 0 deletions
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32
scripts/lua/modules/graph_utils.lua
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@ -12,6 +12,7 @@ local os_utils = require "os_utils"
local have_nedge = ntop.isnEdge()
local ts_utils = require("ts_utils")
local ts_common = require("ts_common")
-- Keep global, need to be accessed from nv_graph_utils
schemas_graph_options = {}
@ -61,6 +62,37 @@ local graph_colors = {
-- ########################################################
-- @brief Ensure that the provided series have the same number of points. This is a
-- requirement for the charts.
-- @param series a list of series to fix. The format of each serie is the one
-- returned by ts_utils.query
-- @note the series are modified in place
function normalizeSeriesPoints(series)
local max_count = 0
local min_step = math.huge
for _, serie in pairs(series) do
max_count = math.max(max_count, #serie.series[1].data)
min_step = math.min(min_step, serie.step)
end
if max_count > 0 then
for _, serie in pairs(series) do
local count = #serie.series[1].data
if count ~= max_count then
for _, serie in pairs(serie.series) do
serie.data = ts_common.upsampleSerie(serie.data, max_count)
serie.step = min_step
serie.count = max_count
end
end
end
end
end
-- ########################################################
function queryEpochData(schema, tags, selectedEpoch, zoomLevel, options)
if(zoomLevel == nil) then zoomLevel = "1h" end
local d = getZoomDuration(zoomLevel)