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node_modules/rxjs/_esm2015/operators/retry.js

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+import { Subscriber } from '../Subscriber';
+/**
+ * Returns an Observable that mirrors the source Observable with the exception of an `error`. If the source Observable
+ * calls `error`, this method will resubscribe to the source Observable for a maximum of `count` resubscriptions (given
+ * as a number parameter) rather than propagating the `error` call.
+ *
+ * <img src="./img/retry.png" width="100%">
+ *
+ * Any and all items emitted by the source Observable will be emitted by the resulting Observable, even those emitted
+ * during failed subscriptions. For example, if an Observable fails at first but emits [1, 2] then succeeds the second
+ * time and emits: [1, 2, 3, 4, 5] then the complete stream of emissions and notifications
+ * would be: [1, 2, 1, 2, 3, 4, 5, `complete`].
+ * @param {number} count - Number of retry attempts before failing.
+ * @return {Observable} The source Observable modified with the retry logic.
+ * @method retry
+ * @owner Observable
+ */
+export function retry(count = -1) {
+    return (source) => source.lift(new RetryOperator(count, source));
+}
+class RetryOperator {
+    constructor(count, source) {
+        this.count = count;
+        this.source = source;
+    }
+    call(subscriber, source) {
+        return source.subscribe(new RetrySubscriber(subscriber, this.count, this.source));
+    }
+}
+/**
+ * We need this JSDoc comment for affecting ESDoc.
+ * @ignore
+ * @extends {Ignored}
+ */
+class RetrySubscriber extends Subscriber {
+    constructor(destination, count, source) {
+        super(destination);
+        this.count = count;
+        this.source = source;
+    }
+    error(err) {
+        if (!this.isStopped) {
+            const { source, count } = this;
+            if (count === 0) {
+                return super.error(err);
+            }
+            else if (count > -1) {
+                this.count = count - 1;
+            }
+            source.subscribe(this._unsubscribeAndRecycle());
+        }
+    }
+}
+//# sourceMappingURL=retry.js.map