@aws-cdk/aws-cloudwatch
Version:
The CDK Construct Library for AWS::CloudWatch
55 lines • 5.72 kB
JavaScript
;
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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