@aws-cdk/aws-cloudwatch/lib/private/statistic.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.normalizeStatistic = exports.parseStatistic = void 0;
const metric_types_1 = require("../metric-types");
/**
 * Parse a statistic, returning the type of metric that was used (simple or percentile)
 */
function parseStatistic(stat) {
    const lowerStat = stat.toLowerCase();
    // Simple statistics
    const statMap = {
        average: metric_types_1.Statistic.AVERAGE,
        avg: metric_types_1.Statistic.AVERAGE,
        minimum: metric_types_1.Statistic.MINIMUM,
        min: metric_types_1.Statistic.MINIMUM,
        maximum: metric_types_1.Statistic.MAXIMUM,
        max: metric_types_1.Statistic.MAXIMUM,
        samplecount: metric_types_1.Statistic.SAMPLE_COUNT,
        n: metric_types_1.Statistic.SAMPLE_COUNT,
        sum: metric_types_1.Statistic.SUM,
    };
    if (lowerStat in statMap) {
        return {
            type: 'simple',
            statistic: statMap[lowerStat],
        };
    }
    // Percentile statistics
    const re = /^p([\d.]+)$/;
    const m = re.exec(lowerStat);
    if (m) {
        return {
            type: 'percentile',
            percentile: parseFloat(m[1]),
        };
    }
    return {
        type: 'generic',
        statistic: stat,
    };
}
exports.parseStatistic = parseStatistic;
function normalizeStatistic(stat) {
    const parsed = parseStatistic(stat);
    if (parsed.type === 'simple' || parsed.type === 'generic') {
        return parsed.statistic;
    }
    else {
        // Already percentile. Avoid parsing because we might get into
        // floating point rounding issues, return as-is but lowercase the p.
        return stat.toLowerCase();
    }
}
exports.normalizeStatistic = normalizeStatistic;
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