222 lines
11 KiB
JavaScript
222 lines
11 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 { diag, } from '@opentelemetry/api';
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import { isObservableInstrument } from '../Instruments';
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import { BatchObservableResultImpl, ObservableResultImpl, } from '../ObservableResult';
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import { callWithTimeout, PromiseAllSettled, isPromiseAllSettledRejectionResult, setEquals, } from '../utils';
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/**
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* An internal interface for managing ObservableCallbacks.
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*
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* Every registered callback associated with a set of instruments are be evaluated
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* exactly once during collection prior to reading data for that instrument.
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*/
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var ObservableRegistry = /** @class */ (function () {
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function ObservableRegistry() {
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this._callbacks = [];
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this._batchCallbacks = [];
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}
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ObservableRegistry.prototype.addCallback = function (callback, instrument) {
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var idx = this._findCallback(callback, instrument);
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if (idx >= 0) {
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return;
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}
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this._callbacks.push({ callback: callback, instrument: instrument });
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};
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ObservableRegistry.prototype.removeCallback = function (callback, instrument) {
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var idx = this._findCallback(callback, instrument);
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if (idx < 0) {
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return;
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}
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this._callbacks.splice(idx, 1);
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};
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ObservableRegistry.prototype.addBatchCallback = function (callback, instruments) {
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// Create a set of unique instruments.
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var observableInstruments = new Set(instruments.filter(isObservableInstrument));
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if (observableInstruments.size === 0) {
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diag.error('BatchObservableCallback is not associated with valid instruments', instruments);
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return;
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}
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var idx = this._findBatchCallback(callback, observableInstruments);
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if (idx >= 0) {
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return;
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}
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this._batchCallbacks.push({ callback: callback, instruments: observableInstruments });
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};
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ObservableRegistry.prototype.removeBatchCallback = function (callback, instruments) {
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// Create a set of unique instruments.
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var observableInstruments = new Set(instruments.filter(isObservableInstrument));
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var idx = this._findBatchCallback(callback, observableInstruments);
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if (idx < 0) {
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return;
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}
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this._batchCallbacks.splice(idx, 1);
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};
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/**
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* @returns a promise of rejected reasons for invoking callbacks.
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*/
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ObservableRegistry.prototype.observe = function (collectionTime, timeoutMillis) {
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return __awaiter(this, void 0, void 0, function () {
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var callbackFutures, batchCallbackFutures, results, rejections;
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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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callbackFutures = this._observeCallbacks(collectionTime, timeoutMillis);
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batchCallbackFutures = this._observeBatchCallbacks(collectionTime, timeoutMillis);
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return [4 /*yield*/, PromiseAllSettled(__spreadArray(__spreadArray([], __read(callbackFutures), false), __read(batchCallbackFutures), false))];
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case 1:
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results = _a.sent();
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rejections = results
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.filter(isPromiseAllSettledRejectionResult)
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.map(function (it) { return it.reason; });
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return [2 /*return*/, rejections];
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}
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});
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});
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};
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ObservableRegistry.prototype._observeCallbacks = function (observationTime, timeoutMillis) {
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var _this = this;
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return this._callbacks.map(function (_a) {
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var callback = _a.callback, instrument = _a.instrument;
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return __awaiter(_this, void 0, void 0, function () {
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var observableResult, callPromise;
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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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observableResult = new ObservableResultImpl(instrument._descriptor.name, instrument._descriptor.valueType);
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callPromise = Promise.resolve(callback(observableResult));
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if (timeoutMillis != null) {
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callPromise = callWithTimeout(callPromise, timeoutMillis);
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}
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return [4 /*yield*/, callPromise];
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case 1:
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_b.sent();
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instrument._metricStorages.forEach(function (metricStorage) {
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metricStorage.record(observableResult._buffer, observationTime);
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});
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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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ObservableRegistry.prototype._observeBatchCallbacks = function (observationTime, timeoutMillis) {
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var _this = this;
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return this._batchCallbacks.map(function (_a) {
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var callback = _a.callback, instruments = _a.instruments;
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return __awaiter(_this, void 0, void 0, function () {
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var observableResult, callPromise;
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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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observableResult = new BatchObservableResultImpl();
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callPromise = Promise.resolve(callback(observableResult));
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if (timeoutMillis != null) {
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callPromise = callWithTimeout(callPromise, timeoutMillis);
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}
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return [4 /*yield*/, callPromise];
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case 1:
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_b.sent();
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instruments.forEach(function (instrument) {
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var buffer = observableResult._buffer.get(instrument);
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if (buffer == null) {
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return;
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}
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instrument._metricStorages.forEach(function (metricStorage) {
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metricStorage.record(buffer, observationTime);
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});
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});
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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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ObservableRegistry.prototype._findCallback = function (callback, instrument) {
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return this._callbacks.findIndex(function (record) {
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return record.callback === callback && record.instrument === instrument;
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});
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};
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ObservableRegistry.prototype._findBatchCallback = function (callback, instruments) {
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return this._batchCallbacks.findIndex(function (record) {
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return (record.callback === callback &&
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setEquals(record.instruments, instruments));
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});
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};
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return ObservableRegistry;
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}());
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export { ObservableRegistry };
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//# sourceMappingURL=ObservableRegistry.js.map
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