65 lines
2.6 KiB
JavaScript
65 lines
2.6 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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var Subscriber_1 = require('../Subscriber');
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/**
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* Returns an Observable that mirrors the source Observable with the exception of an `error`. If the source Observable
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* calls `error`, this method will resubscribe to the source Observable for a maximum of `count` resubscriptions (given
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* as a number parameter) rather than propagating the `error` call.
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*
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* <img src="./img/retry.png" width="100%">
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*
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* Any and all items emitted by the source Observable will be emitted by the resulting Observable, even those emitted
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* during failed subscriptions. For example, if an Observable fails at first but emits [1, 2] then succeeds the second
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* time and emits: [1, 2, 3, 4, 5] then the complete stream of emissions and notifications
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* would be: [1, 2, 1, 2, 3, 4, 5, `complete`].
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* @param {number} count - Number of retry attempts before failing.
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* @return {Observable} The source Observable modified with the retry logic.
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* @method retry
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* @owner Observable
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*/
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function retry(count) {
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if (count === void 0) { count = -1; }
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return function (source) { return source.lift(new RetryOperator(count, source)); };
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}
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exports.retry = retry;
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var RetryOperator = (function () {
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function RetryOperator(count, source) {
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this.count = count;
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this.source = source;
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}
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RetryOperator.prototype.call = function (subscriber, source) {
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return source.subscribe(new RetrySubscriber(subscriber, this.count, this.source));
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};
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return RetryOperator;
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}());
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/**
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* We need this JSDoc comment for affecting ESDoc.
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* @ignore
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* @extends {Ignored}
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*/
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var RetrySubscriber = (function (_super) {
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__extends(RetrySubscriber, _super);
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function RetrySubscriber(destination, count, source) {
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_super.call(this, destination);
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this.count = count;
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this.source = source;
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}
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RetrySubscriber.prototype.error = function (err) {
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if (!this.isStopped) {
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var _a = this, source = _a.source, count = _a.count;
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if (count === 0) {
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return _super.prototype.error.call(this, err);
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}
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else if (count > -1) {
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this.count = count - 1;
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}
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source.subscribe(this._unsubscribeAndRecycle());
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}
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};
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return RetrySubscriber;
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}(Subscriber_1.Subscriber));
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//# sourceMappingURL=retry.js.map
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