248 lines
12 KiB
JavaScript
248 lines
12 KiB
JavaScript
/*
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* Copyright The OpenTelemetry Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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return new (P || (P = Promise))(function (resolve, reject) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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step((generator = generator.apply(thisArg, _arguments || [])).next());
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});
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};
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var __generator = (this && this.__generator) || function (thisArg, body) {
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var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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function verb(n) { return function (v) { return step([n, v]); }; }
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function step(op) {
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if (f) throw new TypeError("Generator is already executing.");
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while (_) try {
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if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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if (y = 0, t) op = [op[0] & 2, t.value];
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switch (op[0]) {
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case 0: case 1: t = op; break;
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case 4: _.label++; return { value: op[1], done: false };
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case 5: _.label++; y = op[1]; op = [0]; continue;
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case 7: op = _.ops.pop(); _.trys.pop(); continue;
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default:
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if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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if (t[2]) _.ops.pop();
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_.trys.pop(); continue;
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}
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op = body.call(thisArg, _);
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} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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}
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};
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var __read = (this && this.__read) || function (o, n) {
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var m = typeof Symbol === "function" && o[Symbol.iterator];
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if (!m) return o;
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var i = m.call(o), r, ar = [], e;
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try {
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while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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}
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catch (error) { e = { error: error }; }
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finally {
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try {
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if (r && !r.done && (m = i["return"])) m.call(i);
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}
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finally { if (e) throw e.error; }
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}
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return ar;
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};
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var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
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if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
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if (ar || !(i in from)) {
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if (!ar) ar = Array.prototype.slice.call(from, 0, i);
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ar[i] = from[i];
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}
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}
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return to.concat(ar || Array.prototype.slice.call(from));
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};
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import * as api from '@opentelemetry/api';
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import { FlatMap, callWithTimeout } from '../utils';
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import { DEFAULT_AGGREGATION_SELECTOR, DEFAULT_AGGREGATION_TEMPORALITY_SELECTOR, } from './AggregationSelector';
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/**
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* A registered reader of metrics that, when linked to a {@link MetricProducer}, offers global
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* control over metrics.
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*/
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var MetricReader = /** @class */ (function () {
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function MetricReader(options) {
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var _a, _b, _c;
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// Tracks the shutdown state.
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// TODO: use BindOncePromise here once a new version of @opentelemetry/core is available.
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this._shutdown = false;
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this._aggregationSelector =
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(_a = options === null || options === void 0 ? void 0 : options.aggregationSelector) !== null && _a !== void 0 ? _a : DEFAULT_AGGREGATION_SELECTOR;
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this._aggregationTemporalitySelector =
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(_b = options === null || options === void 0 ? void 0 : options.aggregationTemporalitySelector) !== null && _b !== void 0 ? _b : DEFAULT_AGGREGATION_TEMPORALITY_SELECTOR;
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this._metricProducers = (_c = options === null || options === void 0 ? void 0 : options.metricProducers) !== null && _c !== void 0 ? _c : [];
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this._cardinalitySelector = options === null || options === void 0 ? void 0 : options.cardinalitySelector;
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}
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/**
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* Set the {@link MetricProducer} used by this instance. **This should only be called by the
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* SDK and should be considered internal.**
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*
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* To add additional {@link MetricProducer}s to a {@link MetricReader}, pass them to the
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* constructor as {@link MetricReaderOptions.metricProducers}.
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*
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* @internal
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* @param metricProducer
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*/
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MetricReader.prototype.setMetricProducer = function (metricProducer) {
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if (this._sdkMetricProducer) {
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throw new Error('MetricReader can not be bound to a MeterProvider again.');
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}
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this._sdkMetricProducer = metricProducer;
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this.onInitialized();
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};
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/**
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* Select the {@link Aggregation} for the given {@link InstrumentType} for this
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* reader.
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*/
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MetricReader.prototype.selectAggregation = function (instrumentType) {
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return this._aggregationSelector(instrumentType);
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};
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/**
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* Select the {@link AggregationTemporality} for the given
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* {@link InstrumentType} for this reader.
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*/
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MetricReader.prototype.selectAggregationTemporality = function (instrumentType) {
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return this._aggregationTemporalitySelector(instrumentType);
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};
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/**
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* Select the cardinality limit for the given {@link InstrumentType} for this
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* reader.
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*/
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MetricReader.prototype.selectCardinalityLimit = function (instrumentType) {
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return this._cardinalitySelector
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? this._cardinalitySelector(instrumentType)
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: 2000; // default value if no selector is provided
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};
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/**
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* Handle once the SDK has initialized this {@link MetricReader}
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* Overriding this method is optional.
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*/
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MetricReader.prototype.onInitialized = function () {
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// Default implementation is empty.
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};
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/**
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* Collect all metrics from the associated {@link MetricProducer}
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*/
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MetricReader.prototype.collect = function (options) {
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return __awaiter(this, void 0, void 0, function () {
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var _a, sdkCollectionResults, additionalCollectionResults, errors, resource, scopeMetrics;
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return __generator(this, function (_b) {
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switch (_b.label) {
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case 0:
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if (this._sdkMetricProducer === undefined) {
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throw new Error('MetricReader is not bound to a MetricProducer');
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}
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// Subsequent invocations to collect are not allowed. SDKs SHOULD return some failure for these calls.
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if (this._shutdown) {
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throw new Error('MetricReader is shutdown');
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}
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return [4 /*yield*/, Promise.all(__spreadArray([
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this._sdkMetricProducer.collect({
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timeoutMillis: options === null || options === void 0 ? void 0 : options.timeoutMillis,
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})
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], __read(this._metricProducers.map(function (producer) {
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return producer.collect({
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timeoutMillis: options === null || options === void 0 ? void 0 : options.timeoutMillis,
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});
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})), false))];
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case 1:
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_a = __read.apply(void 0, [_b.sent()]), sdkCollectionResults = _a[0], additionalCollectionResults = _a.slice(1);
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errors = sdkCollectionResults.errors.concat(FlatMap(additionalCollectionResults, function (result) { return result.errors; }));
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resource = sdkCollectionResults.resourceMetrics.resource;
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scopeMetrics = sdkCollectionResults.resourceMetrics.scopeMetrics.concat(FlatMap(additionalCollectionResults, function (result) { return result.resourceMetrics.scopeMetrics; }));
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return [2 /*return*/, {
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resourceMetrics: {
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resource: resource,
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scopeMetrics: scopeMetrics,
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},
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errors: errors,
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}];
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}
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});
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});
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};
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/**
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* Shuts down the metric reader, the promise will reject after the optional timeout or resolve after completion.
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*
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* <p> NOTE: this operation will continue even after the promise rejects due to a timeout.
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* @param options options with timeout.
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*/
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MetricReader.prototype.shutdown = function (options) {
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return __awaiter(this, void 0, void 0, function () {
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return __generator(this, function (_a) {
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switch (_a.label) {
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case 0:
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// Do not call shutdown again if it has already been called.
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if (this._shutdown) {
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api.diag.error('Cannot call shutdown twice.');
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return [2 /*return*/];
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}
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if (!((options === null || options === void 0 ? void 0 : options.timeoutMillis) == null)) return [3 /*break*/, 2];
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return [4 /*yield*/, this.onShutdown()];
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case 1:
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_a.sent();
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return [3 /*break*/, 4];
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case 2: return [4 /*yield*/, callWithTimeout(this.onShutdown(), options.timeoutMillis)];
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case 3:
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_a.sent();
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_a.label = 4;
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case 4:
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this._shutdown = true;
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return [2 /*return*/];
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}
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});
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});
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};
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/**
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* Flushes metrics read by this reader, the promise will reject after the optional timeout or resolve after completion.
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*
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* <p> NOTE: this operation will continue even after the promise rejects due to a timeout.
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* @param options options with timeout.
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*/
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MetricReader.prototype.forceFlush = function (options) {
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return __awaiter(this, void 0, void 0, function () {
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return __generator(this, function (_a) {
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switch (_a.label) {
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case 0:
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if (this._shutdown) {
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api.diag.warn('Cannot forceFlush on already shutdown MetricReader.');
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return [2 /*return*/];
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}
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if (!((options === null || options === void 0 ? void 0 : options.timeoutMillis) == null)) return [3 /*break*/, 2];
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return [4 /*yield*/, this.onForceFlush()];
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case 1:
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_a.sent();
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return [2 /*return*/];
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case 2: return [4 /*yield*/, callWithTimeout(this.onForceFlush(), options.timeoutMillis)];
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case 3:
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_a.sent();
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return [2 /*return*/];
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}
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});
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});
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};
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return MetricReader;
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}());
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export { MetricReader };
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//# sourceMappingURL=MetricReader.js.map
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