@neo-one/monitor
Version:
NEO•ONE monitoring.
162 lines (160 loc) • 20.7 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const utils_1 = require("./utils");
class MetricProxy {
constructor(metric, labelNames = []) {
this.metric = metric;
this.labelNames = labelNames;
}
getLabelNames() {
return this.labelNames;
}
getLabels(countOrLabels) {
if (countOrLabels !== undefined && typeof countOrLabels === 'object') {
return utils_1.convertMetricLabels(countOrLabels);
}
return countOrLabels;
}
}
exports.MetricProxy = MetricProxy;
class CounterProxy extends MetricProxy {
inc(countOrLabels, count) {
if (this.metric !== undefined) {
this.metric.inc(this.getLabels(countOrLabels), count);
}
}
}
exports.CounterProxy = CounterProxy;
class GaugeProxy extends MetricProxy {
inc(countOrLabels, count) {
if (this.metric !== undefined) {
this.metric.inc(this.getLabels(countOrLabels), count);
}
}
dec(countOrLabels, count) {
if (this.metric !== undefined) {
this.metric.dec(this.getLabels(countOrLabels), count);
}
}
set(countOrLabels, count) {
if (this.metric !== undefined) {
this.metric.set(this.getLabels(countOrLabels), count);
}
}
}
exports.GaugeProxy = GaugeProxy;
class HistogramProxy extends MetricProxy {
observe(countOrLabels, count) {
if (this.metric !== undefined) {
this.metric.observe(this.getLabels(countOrLabels), count);
}
}
}
exports.HistogramProxy = HistogramProxy;
class SummaryProxy extends MetricProxy {
observe(countOrLabels, count) {
if (this.metric !== undefined) {
this.metric.observe(this.getLabels(countOrLabels), count);
}
}
}
exports.SummaryProxy = SummaryProxy;
class MetricsFactoryProxy {
constructor() {
this.mutableCounters = {};
this.mutableHistograms = {};
this.mutableGauges = {};
this.mutableSummaries = {};
}
reset_forTest() {
this.mutableCounters = {};
this.mutableHistograms = {};
this.mutableGauges = {};
this.mutableSummaries = {};
}
createCounter(options) {
let counter = this.mutableCounters[options.name];
if (counter === undefined) {
counter = this.createCounterHelper(options);
this.mutableCounters[options.name] = counter;
}
return counter;
}
createGauge(options) {
let gauge = this.mutableGauges[options.name];
if (gauge === undefined) {
gauge = this.createGaugeHelper(options);
this.mutableGauges[options.name] = gauge;
}
return gauge;
}
createHistogram(options) {
let histogram = this.mutableHistograms[options.name];
if (histogram === undefined) {
histogram = this.createHistogramHelper(options);
this.mutableHistograms[options.name] = histogram;
}
return histogram;
}
createSummary(options) {
let summary = this.mutableSummaries[options.name];
if (summary === undefined) {
summary = this.createSummaryHelper(options);
this.mutableSummaries[options.name] = summary;
}
return summary;
}
setFactory(mutableFactory) {
this.mutableFactory = mutableFactory;
}
createCounterInternal(_options) {
return new CounterProxy();
}
createGaugeInternal(_options) {
return new GaugeProxy();
}
createHistogramInternal(_options) {
return new HistogramProxy();
}
createSummaryInternal(_options) {
return new SummaryProxy();
}
getMetricConstruct(options) {
const { name, help = 'placeholder', labelNames: labelNamesIn = [] } = options;
const labelNames = labelNamesIn.map(utils_1.convertMetricLabel);
let construct = { name, help, labelNames };
if ('percentiles' in options && options.percentiles !== undefined) {
construct = { name, help, labelNames, percentiles: [...options.percentiles] };
}
else if ('buckets' in options && options.buckets !== undefined) {
construct = { name, help, labelNames, buckets: [...options.buckets] };
}
return construct;
}
createCounterHelper(options) {
if (this.mutableFactory !== undefined) {
return this.mutableFactory.createCounter(options);
}
return this.createCounterInternal(options);
}
createGaugeHelper(options) {
if (this.mutableFactory !== undefined) {
return this.mutableFactory.createGauge(options);
}
return this.createGaugeInternal(options);
}
createHistogramHelper(options) {
if (this.mutableFactory !== undefined) {
return this.mutableFactory.createHistogram(options);
}
return this.createHistogramInternal(options);
}
createSummaryHelper(options) {
if (this.mutableFactory !== undefined) {
return this.mutableFactory.createSummary(options);
}
return this.createSummaryInternal(options);
}
}
exports.MetricsFactoryProxy = MetricsFactoryProxy;
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{\n  BucketedMetricOptions,\n  Counter,\n  CounterBase,\n  Gauge,\n  GaugeBase,\n  Histogram,\n  HistogramBase,\n  Labels,\n  MetricOptions,\n  MetricsFactory,\n  PercentiledMetricOptions,\n  Summary,\n  SummaryBase,\n} from './types';\n\nimport { convertMetricLabel, convertMetricLabels } from './utils';\n\nexport interface MetricConstruct {\n  readonly name: string;\n  readonly help: string;\n  // tslint:disable readonly-array\n  readonly labelNames: string[];\n  readonly buckets?: number[];\n  readonly percentiles?: number[];\n  // tslint:enable readonly-array\n}\n\nexport class MetricProxy<T> {\n  protected readonly metric: T | undefined;\n  protected readonly labelNames: readonly string[];\n\n  public constructor(metric?: T | undefined, labelNames: readonly string[] = []) {\n    this.metric = metric;\n    this.labelNames = labelNames;\n  }\n\n  public getLabelNames(): readonly string[] {\n    return this.labelNames;\n  }\n\n  protected getLabels(countOrLabels?: Labels | number): Labels | number | void {\n    if (countOrLabels !== undefined && typeof countOrLabels === 'object') {\n      return convertMetricLabels(countOrLabels);\n    }\n\n    return countOrLabels;\n  }\n}\n\nexport class CounterProxy extends MetricProxy<CounterBase> implements Counter {\n  public inc(countOrLabels?: Labels | number, count?: number): void {\n    if (this.metric !== undefined) {\n      this.metric.inc(this.getLabels(countOrLabels) as Labels, count);\n    }\n  }\n}\n\nexport class GaugeProxy extends MetricProxy<GaugeBase> implements Gauge {\n  public inc(countOrLabels?: Labels | number, count?: number): void {\n    if (this.metric !== undefined) {\n      this.metric.inc(this.getLabels(countOrLabels) as Labels, count);\n    }\n  }\n\n  public dec(countOrLabels?: Labels | number, count?: number): void {\n    if (this.metric !== undefined) {\n      this.metric.dec(this.getLabels(countOrLabels) as Labels, count);\n    }\n  }\n\n  public set(countOrLabels: Labels | number, count?: number): void {\n    if (this.metric !== undefined) {\n      this.metric.set(this.getLabels(countOrLabels) as Labels, count as number);\n    }\n  }\n}\n\nexport class HistogramProxy extends MetricProxy<HistogramBase> implements Histogram {\n  public observe(countOrLabels: Labels | number, count?: number): void {\n    if (this.metric !== undefined) {\n      this.metric.observe(this.getLabels(countOrLabels) as Labels, count as number);\n    }\n  }\n}\n\nexport class SummaryProxy extends MetricProxy<SummaryBase> implements Summary {\n  public observe(countOrLabels: Labels | number, count?: number): void {\n    if (this.metric !== undefined) {\n      this.metric.observe(this.getLabels(countOrLabels) as Labels, count as number);\n    }\n  }\n}\n\nexport class MetricsFactoryProxy implements MetricsFactory {\n  protected mutableCounters: { [K in string]?: Counter } = {};\n  protected mutableHistograms: { [K in string]?: Histogram } = {};\n  protected mutableGauges: { [K in string]?: Gauge } = {};\n  protected mutableSummaries: { [K in string]?: Summary } = {};\n\n  private mutableFactory: MetricsFactory | undefined;\n\n  public reset_forTest(): void {\n    this.mutableCounters = {};\n    this.mutableHistograms = {};\n    this.mutableGauges = {};\n    this.mutableSummaries = {};\n  }\n\n  public createCounter(options: MetricOptions): Counter {\n    let counter = this.mutableCounters[options.name];\n    if (counter === undefined) {\n      counter = this.createCounterHelper(options);\n      this.mutableCounters[options.name] = counter;\n    }\n\n    return counter;\n  }\n\n  public createGauge(options: MetricOptions): Gauge {\n    let gauge = this.mutableGauges[options.name];\n    if (gauge === undefined) {\n      gauge = this.createGaugeHelper(options);\n      this.mutableGauges[options.name] = gauge;\n    }\n\n    return gauge;\n  }\n\n  public createHistogram(options: MetricOptions): Histogram {\n    let histogram = this.mutableHistograms[options.name];\n    if (histogram === undefined) {\n      histogram = this.createHistogramHelper(options);\n      this.mutableHistograms[options.name] = histogram;\n    }\n\n    return histogram;\n  }\n\n  public createSummary(options: MetricOptions): Summary {\n    let summary = this.mutableSummaries[options.name];\n    if (summary === undefined) {\n      summary = this.createSummaryHelper(options);\n      this.mutableSummaries[options.name] = summary;\n    }\n\n    return summary;\n  }\n\n  public setFactory(mutableFactory: MetricsFactory): void {\n    this.mutableFactory = mutableFactory;\n  }\n\n  protected createCounterInternal(_options: MetricOptions): Counter {\n    return new CounterProxy();\n  }\n\n  protected createGaugeInternal(_options: MetricOptions): Gauge {\n    return new GaugeProxy();\n  }\n\n  protected createHistogramInternal(_options: BucketedMetricOptions): Histogram {\n    return new HistogramProxy();\n  }\n\n  protected createSummaryInternal(_options: PercentiledMetricOptions): Summary {\n    return new SummaryProxy();\n  }\n\n  protected getMetricConstruct(\n    options: MetricOptions | BucketedMetricOptions | PercentiledMetricOptions,\n  ): MetricConstruct {\n    const { name, help = 'placeholder', labelNames: labelNamesIn = [] } = options;\n    const labelNames = labelNamesIn.map(convertMetricLabel);\n    let construct: MetricConstruct = { name, help, labelNames };\n    if ('percentiles' in options && options.percentiles !== undefined) {\n      construct = { name, help, labelNames, percentiles: [...options.percentiles] };\n    } else if ('buckets' in options && options.buckets !== undefined) {\n      construct = { name, help, labelNames, buckets: [...options.buckets] };\n    }\n\n    return construct;\n  }\n\n  private createCounterHelper(options: MetricOptions): Counter {\n    if (this.mutableFactory !== undefined) {\n      return this.mutableFactory.createCounter(options);\n    }\n\n    return this.createCounterInternal(options);\n  }\n\n  private createGaugeHelper(options: MetricOptions): Gauge {\n    if (this.mutableFactory !== undefined) {\n      return this.mutableFactory.createGauge(options);\n    }\n\n    return this.createGaugeInternal(options);\n  }\n\n  private createHistogramHelper(options: BucketedMetricOptions): Histogram {\n    if (this.mutableFactory !== undefined) {\n      return this.mutableFactory.createHistogram(options);\n    }\n\n    return this.createHistogramInternal(options);\n  }\n\n  private createSummaryHelper(options: PercentiledMetricOptions): Summary {\n    if (this.mutableFactory !== undefined) {\n      return this.mutableFactory.createSummary(options);\n    }\n\n    return this.createSummaryInternal(options);\n  }\n}\n"]}