@netdata/charts
Version:
Netdata frontend SDK and chart utilities
245 lines • 13.6 kB
JavaScript
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function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
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function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
import { useMemo, useReducer } from "react";
import { calculateMedian, calculatePercentile, calculateStdDev } from "../../../helpers/statistics";
import { isIncremental } from "../../../helpers/heatmap";
import { useAttributeValue, useChart, useImmediateListener, usePayload } from "../../provider";
import { getPointValue } from "../../../sdk/makeChart/getPointValue";
var nextVersion = function nextVersion(version) {
return version + 1;
};
var advancedStatKeys = new Set(["median", "stddev", "p95", "range", "volume"]);
var responseStatKeys = new Set(["min", "avg", "max", "arp"]);
var isValidNumber = function isValidNumber(value) {
return value !== null && !isNaN(value) && isFinite(value);
};
var getVisibleDimensionId = function getVisibleDimensionId(chart, id) {
return chart.isDimensionVisible(id) ? id : chart.getVisibleDimensionIds()[0];
};
var getViewStatValue = function getViewStatValue(chart, id, key, _ref) {
var _chart$getAttribute, _stats$key;
var abs = _ref.abs,
period = _ref.period;
if (period !== "window" || isIncremental(chart)) return undefined;
var visibleId = getVisibleDimensionId(chart, id);
if (!visibleId) return undefined;
var dimensionIndex = chart.getDimensionIndex(visibleId);
if (typeof dimensionIndex !== "number") return undefined;
var stats = (_chart$getAttribute = chart.getAttribute("viewDimensions")) === null || _chart$getAttribute === void 0 ? void 0 : _chart$getAttribute.sts;
if (!stats) return undefined;
if (key === "range") {
var _stats$min, _stats$max;
var min = (_stats$min = stats.min) === null || _stats$min === void 0 ? void 0 : _stats$min[dimensionIndex];
var max = (_stats$max = stats.max) === null || _stats$max === void 0 ? void 0 : _stats$max[dimensionIndex];
if (!isValidNumber(min) || !isValidNumber(max)) return undefined;
if (abs && (min < 0 || max < 0)) return undefined;
return max - min;
}
if (!responseStatKeys.has(key)) return undefined;
var value = (_stats$key = stats[key]) === null || _stats$key === void 0 ? void 0 : _stats$key[dimensionIndex];
if (!isValidNumber(value)) return undefined;
if (key !== "arp" && abs) {
var _stats$min2, _stats$max2;
var _min = (_stats$min2 = stats.min) === null || _stats$min2 === void 0 ? void 0 : _stats$min2[dimensionIndex];
var _max = (_stats$max2 = stats.max) === null || _stats$max2 === void 0 ? void 0 : _stats$max2[dimensionIndex];
if (isValidNumber(_min) && _min < 0 || isValidNumber(_max) && _max < 0) return undefined;
}
return value;
};
var getDirectRowDimensionValue = function getDirectRowDimensionValue(chart, id, row, _ref2) {
var dimensionIndex = _ref2.dimensionIndex,
_ref2$valueKey = _ref2.valueKey,
valueKey = _ref2$valueKey === void 0 ? "value" : _ref2$valueKey,
_ref2$abs = _ref2.abs,
abs = _ref2$abs === void 0 ? true : _ref2$abs,
_ref2$allowNull = _ref2.allowNull,
allowNull = _ref2$allowNull === void 0 ? false : _ref2$allowNull;
if (dimensionIndex === undefined || isIncremental(chart)) {
return chart.getRowDimensionValue(id, row, {
valueKey: valueKey,
abs: abs,
allowNull: allowNull
});
}
var value = getPointValue(row === null || row === void 0 ? void 0 : row[dimensionIndex + 1], chart.getPayload().point, valueKey);
if (typeof value === "undefined") return null;
value = allowNull && value === null ? value : abs ? Math.abs(value) : value;
return value;
};
var getPeriodRows = function getPeriodRows(chart, payload, period) {
var data = (payload === null || payload === void 0 ? void 0 : payload.data) || [];
if (!data.length) return null;
if (period !== "highlight") return data;
var _chart$getAttribute2 = chart.getAttribute("overlays"),
highlight = _chart$getAttribute2.highlight;
if (!(highlight !== null && highlight !== void 0 && highlight.range)) return null;
var _highlight$range = _slicedToArray(highlight.range, 2),
start = _highlight$range[0],
end = _highlight$range[1];
return data.filter(function (row) {
var timestamp = row[0] / 1000;
return timestamp >= start && timestamp <= end;
});
};
var calculateDimensionStats = function calculateDimensionStats(chart, id, rows, _ref3) {
var abs = _ref3.abs,
includeAdvancedStats = _ref3.includeAdvancedStats,
requestedKey = _ref3.requestedKey;
if (!(rows !== null && rows !== void 0 && rows.length)) return null;
id = getVisibleDimensionId(chart, id);
if (!id) return null;
var dimensionIndex = chart.getDimensionIndex(id);
var includeAdvanced = includeAdvancedStats || advancedStatKeys.has(requestedKey);
var values = includeAdvanced ? [] : null;
var count = 0;
var sum = 0;
var min = Infinity;
var max = -Infinity;
var volume = 0;
for (var i = 0; i < rows.length; i++) {
var value = getDirectRowDimensionValue(chart, id, rows[i], {
dimensionIndex: dimensionIndex,
abs: abs,
allowNull: true
});
if (!isValidNumber(value)) continue;
count++;
sum += value;
volume += Math.abs(value);
if (value < min) min = value;
if (value > max) max = value;
if (values) values.push(value);
}
if (!count) return null;
var avg = sum / count;
var stats = {
min: min,
avg: avg,
max: max,
arp: 0
};
if (!includeAdvanced) return stats;
return _objectSpread(_objectSpread({}, stats), {}, {
median: calculateMedian(values),
stddev: calculateStdDev(values, avg),
p95: calculatePercentile(values, 95),
range: max - min,
volume: volume
});
};
var getLatestIndex = function getLatestIndex(chart, payload) {
var all = (payload === null || payload === void 0 ? void 0 : payload.all) || [];
if (!all.length) return -1;
var hover = chart.getAttribute("hoverX");
var index = hover ? chart.getClosestRow(hover[0]) : -1;
return index === -1 ? all.length - 1 : index;
};
export var createDimensionValueCache = function createDimensionValueCache(chart) {
var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
_ref4$payload = _ref4.payload,
payload = _ref4$payload === void 0 ? chart.getPayload() : _ref4$payload,
_ref4$period = _ref4.period,
period = _ref4$period === void 0 ? "window" : _ref4$period,
_ref4$includeAdvanced = _ref4.includeAdvancedStats,
includeAdvancedStats = _ref4$includeAdvanced === void 0 ? false : _ref4$includeAdvanced;
var latestValues = new Map();
var statsById = new Map();
var rows = getPeriodRows(chart, payload, period);
var abs = chart.getAttribute("abs");
var latestIndex = getLatestIndex(chart, payload);
var getLatestValue = function getLatestValue(id, valueKey) {
var _payload$all;
var key = "".concat(id, "\0").concat(valueKey);
if (latestValues.has(key)) return latestValues.get(key);
var visibleId = getVisibleDimensionId(chart, id);
var dimensionIndex = visibleId ? chart.getDimensionIndex(visibleId) : undefined;
var value = latestIndex === -1 || !visibleId ? null : getDirectRowDimensionValue(chart, visibleId, payload === null || payload === void 0 || (_payload$all = payload.all) === null || _payload$all === void 0 ? void 0 : _payload$all[latestIndex], {
dimensionIndex: dimensionIndex,
valueKey: valueKey,
abs: abs,
allowNull: true
});
latestValues.set(key, value);
return value;
};
var getStats = function getStats(id, requestedKey) {
var cached = statsById.get(id);
var needsAdvanced = includeAdvancedStats || advancedStatKeys.has(requestedKey);
if (cached !== null && cached !== void 0 && cached.stats && Object.prototype.hasOwnProperty.call(cached.stats, requestedKey)) {
return cached.stats;
}
var responseStat = getViewStatValue(chart, id, requestedKey, {
abs: abs,
period: period
});
if (typeof responseStat !== "undefined") {
var _stats = _objectSpread(_objectSpread({}, (cached === null || cached === void 0 ? void 0 : cached.stats) || {}), {}, _defineProperty({}, requestedKey, responseStat));
statsById.set(id, {
includeAdvanced: (cached === null || cached === void 0 ? void 0 : cached.includeAdvanced) || false,
stats: _stats
});
return _stats;
}
if (cached && (!needsAdvanced || cached.includeAdvanced)) return cached.stats;
var stats = calculateDimensionStats(chart, id, rows, {
abs: abs,
includeAdvancedStats: includeAdvancedStats,
requestedKey: requestedKey
});
statsById.set(id, {
includeAdvanced: needsAdvanced,
stats: stats
});
return stats;
};
return {
get: function get(id) {
var _getStats$valueKey, _getStats;
var valueKey = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "value";
var _ref5 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
_ref5$period = _ref5.period,
valuePeriod = _ref5$period === void 0 ? period : _ref5$period;
if (valuePeriod === "latest") return getLatestValue(id, valueKey);
return (_getStats$valueKey = (_getStats = getStats(id, valueKey)) === null || _getStats === void 0 ? void 0 : _getStats[valueKey]) !== null && _getStats$valueKey !== void 0 ? _getStats$valueKey : null;
}
};
};
var useVisibleDimensionsVersion = function useVisibleDimensionsVersion(chart) {
var _useReducer = useReducer(nextVersion, 0),
_useReducer2 = _slicedToArray(_useReducer, 2),
version = _useReducer2[0],
bumpVersion = _useReducer2[1];
useImmediateListener(function () {
return chart.on("visibleDimensionsChanged", bumpVersion);
}, [chart]);
return version;
};
var useDimensionValueCache = function useDimensionValueCache(period) {
var _ref6 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
_ref6$includeAdvanced = _ref6.includeAdvancedStats,
includeAdvancedStats = _ref6$includeAdvanced === void 0 ? false : _ref6$includeAdvanced;
var chart = useChart();
var payload = usePayload();
var hover = useAttributeValue("hoverX");
var overlays = useAttributeValue("overlays");
var abs = useAttributeValue("abs");
var visibleDimensionsVersion = useVisibleDimensionsVersion(chart);
return useMemo(function () {
return createDimensionValueCache(chart, {
payload: payload,
period: period,
includeAdvancedStats: includeAdvancedStats
});
}, [chart, payload, period, includeAdvancedStats, hover, overlays, abs, visibleDimensionsVersion]);
};
export default useDimensionValueCache;