retryWhen.js
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"use strict";
var __extends = (this && this.__extends) || function (d, b) {
for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
var Subject_1 = require('../Subject');
var tryCatch_1 = require('../util/tryCatch');
var errorObject_1 = require('../util/errorObject');
var OuterSubscriber_1 = require('../OuterSubscriber');
var subscribeToResult_1 = require('../util/subscribeToResult');
/**
* Returns an Observable that emits the same values as the source observable with the exception of an `error`.
* An `error` will cause the emission of the Throwable that cause the error to the Observable returned from
* notificationHandler. If that Observable calls onComplete or `error` then retry will call `complete` or `error`
* on the child subscription. Otherwise, this Observable will resubscribe to the source observable, on a particular
* Scheduler.
*
* <img src="./img/retryWhen.png" width="100%">
*
* @param {notificationHandler} receives an Observable of notifications with which a user can `complete` or `error`,
* aborting the retry.
* @param {scheduler} the Scheduler on which to subscribe to the source Observable.
* @return {Observable} the source Observable modified with retry logic.
* @method retryWhen
* @owner Observable
*/
function retryWhen(notifier) {
return this.lift(new RetryWhenOperator(notifier, this));
}
exports.retryWhen = retryWhen;
var RetryWhenOperator = (function () {
function RetryWhenOperator(notifier, source) {
this.notifier = notifier;
this.source = source;
}
RetryWhenOperator.prototype.call = function (subscriber, source) {
return source.subscribe(new RetryWhenSubscriber(subscriber, this.notifier, this.source));
};
return RetryWhenOperator;
}());
/**
* We need this JSDoc comment for affecting ESDoc.
* @ignore
* @extends {Ignored}
*/
var RetryWhenSubscriber = (function (_super) {
__extends(RetryWhenSubscriber, _super);
function RetryWhenSubscriber(destination, notifier, source) {
_super.call(this, destination);
this.notifier = notifier;
this.source = source;
}
RetryWhenSubscriber.prototype.error = function (err) {
if (!this.isStopped) {
var errors = this.errors;
var retries = this.retries;
var retriesSubscription = this.retriesSubscription;
if (!retries) {
errors = new Subject_1.Subject();
retries = tryCatch_1.tryCatch(this.notifier)(errors);
if (retries === errorObject_1.errorObject) {
return _super.prototype.error.call(this, errorObject_1.errorObject.e);
}
retriesSubscription = subscribeToResult_1.subscribeToResult(this, retries);
}
else {
this.errors = null;
this.retriesSubscription = null;
}
this.unsubscribe();
this.closed = false;
this.errors = errors;
this.retries = retries;
this.retriesSubscription = retriesSubscription;
errors.next(err);
}
};
RetryWhenSubscriber.prototype._unsubscribe = function () {
var _a = this, errors = _a.errors, retriesSubscription = _a.retriesSubscription;
if (errors) {
errors.unsubscribe();
this.errors = null;
}
if (retriesSubscription) {
retriesSubscription.unsubscribe();
this.retriesSubscription = null;
}
this.retries = null;
};
RetryWhenSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
var _a = this, errors = _a.errors, retries = _a.retries, retriesSubscription = _a.retriesSubscription;
this.errors = null;
this.retries = null;
this.retriesSubscription = null;
this.unsubscribe();
this.isStopped = false;
this.closed = false;
this.errors = errors;
this.retries = retries;
this.retriesSubscription = retriesSubscription;
this.source.subscribe(this);
};
return RetryWhenSubscriber;
}(OuterSubscriber_1.OuterSubscriber));
//# sourceMappingURL=retryWhen.js.map