74 lines
2.6 KiB
JavaScript
74 lines
2.6 KiB
JavaScript
/**
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* @param {String} queryLabel - Default query label for chart
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* @param {Object} metricAttributes - Default metric attribute values (e.g. method, instance)
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* @returns {String} The formatted query label
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* @example
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* singleAttributeLabel('app', {__name__: "up", app: "prometheus"}) -> "app: prometheus"
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*/
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const singleAttributeLabel = (queryLabel, metricAttributes) => {
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if (!queryLabel) return '';
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const relevantAttribute = queryLabel.toLowerCase().replace(' ', '_');
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const value = metricAttributes[relevantAttribute];
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if (!value) return '';
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return `${queryLabel}: ${value}`;
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};
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/**
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* @param {String} queryLabel - Default query label for chart
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* @param {Object} metricAttributes - Default metric attribute values (e.g. method, instance)
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* @returns {String} The formatted query label
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* @example
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* templatedLabel('__name__', {__name__: "up", app: "prometheus"}) -> "__name__"
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*/
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const templatedLabel = (queryLabel, metricAttributes) => {
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if (!queryLabel) return '';
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// eslint-disable-next-line array-callback-return
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Object.entries(metricAttributes).map(([templateVar, label]) => {
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const regex = new RegExp(`{{\\s*${templateVar}\\s*}}`, 'g');
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// eslint-disable-next-line no-param-reassign
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queryLabel = queryLabel.replace(regex, label);
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});
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return queryLabel;
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};
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/**
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* @param {Object} metricAttributes - Default metric attribute values (e.g. method, instance)
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* @returns {String} The formatted query label
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* @example
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* multiMetricLabel('', {__name__: "up", app: "prometheus"}) -> "__name__: up, app: prometheus"
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*/
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const multiMetricLabel = (metricAttributes) => {
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return Object.entries(metricAttributes)
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.map(([templateVar, label]) => `${templateVar}: ${label}`)
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.join(', ');
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};
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/**
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* @param {String} queryLabel - Default query label for chart
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* @param {Object} metricAttributes - Default metric attribute values (e.g. method, instance)
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* @returns {String} The formatted query label
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*/
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export const getSeriesLabel = (queryLabel, metricAttributes) => {
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return (
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singleAttributeLabel(queryLabel, metricAttributes) ||
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templatedLabel(queryLabel, metricAttributes) ||
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multiMetricLabel(metricAttributes) ||
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queryLabel
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);
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};
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/**
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* @param {Array} queryResults - Array of Result objects
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* @param {Object} defaultConfig - Default chart config values (e.g. lineStyle, name)
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* @returns {Array} The formatted values
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*/
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export const makeDataSeries = (queryResults, defaultConfig) =>
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queryResults.map((result) => {
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return {
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...defaultConfig,
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data: result.values,
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name: getSeriesLabel(defaultConfig.name, result.metric),
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};
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});
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