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Diffstat (limited to 'node_modules/rxjs/src/internal/operators/retry.ts')
| -rw-r--r-- | node_modules/rxjs/src/internal/operators/retry.ts | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/node_modules/rxjs/src/internal/operators/retry.ts b/node_modules/rxjs/src/internal/operators/retry.ts deleted file mode 100644 index dbb5164..0000000 --- a/node_modules/rxjs/src/internal/operators/retry.ts +++ /dev/null @@ -1,168 +0,0 @@ -import { MonoTypeOperatorFunction, ObservableInput } from '../types'; -import { operate } from '../util/lift'; -import { Subscription } from '../Subscription'; -import { createOperatorSubscriber } from './OperatorSubscriber'; -import { identity } from '../util/identity'; -import { timer } from '../observable/timer'; -import { innerFrom } from '../observable/innerFrom'; - -/** - * The {@link retry} operator configuration object. `retry` either accepts a `number` - * or an object described by this interface. - */ -export interface RetryConfig { - /** - * The maximum number of times to retry. If `count` is omitted, `retry` will try to - * resubscribe on errors infinite number of times. - */ - count?: number; - /** - * The number of milliseconds to delay before retrying, OR a function to - * return a notifier for delaying. If a function is given, that function should - * return a notifier that, when it emits will retry the source. If the notifier - * completes _without_ emitting, the resulting observable will complete without error, - * if the notifier errors, the error will be pushed to the result. - */ - delay?: number | ((error: any, retryCount: number) => ObservableInput<any>); - /** - * Whether or not to reset the retry counter when the retried subscription - * emits its first value. - */ - resetOnSuccess?: boolean; -} - -export function retry<T>(count?: number): MonoTypeOperatorFunction<T>; -export function retry<T>(config: RetryConfig): MonoTypeOperatorFunction<T>; - -/** - * 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 rather than propagating the `error` call. - * - *  - * - * The number of retries is determined by the `count` parameter. It can be set either by passing a number to - * `retry` function or by setting `count` property when `retry` is configured using {@link RetryConfig}. If - * `count` is omitted, `retry` will try to resubscribe on errors infinite number of times. - * - * 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, complete]` then the complete stream of emissions and - * notifications would be: `[1, 2, 1, 2, 3, 4, 5, complete]`. - * - * ## Example - * - * ```ts - * import { interval, mergeMap, throwError, of, retry } from 'rxjs'; - * - * const source = interval(1000); - * const result = source.pipe( - * mergeMap(val => val > 5 ? throwError(() => 'Error!') : of(val)), - * retry(2) // retry 2 times on error - * ); - * - * result.subscribe({ - * next: value => console.log(value), - * error: err => console.log(`${ err }: Retried 2 times then quit!`) - * }); - * - * // Output: - * // 0..1..2..3..4..5.. - * // 0..1..2..3..4..5.. - * // 0..1..2..3..4..5.. - * // 'Error!: Retried 2 times then quit!' - * ``` - * - * @see {@link retryWhen} - * - * @param configOrCount Either number of retry attempts before failing or a - * {@link RetryConfig} object. - * @return A function that returns an Observable that will resubscribe to the - * source stream when the source stream errors, at most `count` times. - */ -export function retry<T>(configOrCount: number | RetryConfig = Infinity): MonoTypeOperatorFunction<T> { - let config: RetryConfig; - if (configOrCount && typeof configOrCount === 'object') { - config = configOrCount; - } else { - config = { - count: configOrCount as number, - }; - } - const { count = Infinity, delay, resetOnSuccess: resetOnSuccess = false } = config; - - return count <= 0 - ? identity - : operate((source, subscriber) => { - let soFar = 0; - let innerSub: Subscription | null; - const subscribeForRetry = () => { - let syncUnsub = false; - innerSub = source.subscribe( - createOperatorSubscriber( - subscriber, - (value) => { - // If we're resetting on success - if (resetOnSuccess) { - soFar = 0; - } - subscriber.next(value); - }, - // Completions are passed through to consumer. - undefined, - (err) => { - if (soFar++ < count) { - // We are still under our retry count - const resub = () => { - if (innerSub) { - innerSub.unsubscribe(); - innerSub = null; - subscribeForRetry(); - } else { - syncUnsub = true; - } - }; - - if (delay != null) { - // The user specified a retry delay. - // They gave us a number, use a timer, otherwise, it's a function, - // and we're going to call it to get a notifier. - const notifier = typeof delay === 'number' ? timer(delay) : innerFrom(delay(err, soFar)); - const notifierSubscriber = createOperatorSubscriber( - subscriber, - () => { - // After we get the first notification, we - // unsubscribe from the notifier, because we don't want anymore - // and we resubscribe to the source. - notifierSubscriber.unsubscribe(); - resub(); - }, - () => { - // The notifier completed without emitting. - // The author is telling us they want to complete. - subscriber.complete(); - } - ); - notifier.subscribe(notifierSubscriber); - } else { - // There was no notifier given. Just resub immediately. - resub(); - } - } else { - // We're past our maximum number of retries. - // Just send along the error. - subscriber.error(err); - } - } - ) - ); - if (syncUnsub) { - innerSub.unsubscribe(); - innerSub = null; - subscribeForRetry(); - } - }; - subscribeForRetry(); - }); -} |