68 lines
2.6 KiB
JavaScript
68 lines
2.6 KiB
JavaScript
import { operate } from '../util/lift';
|
|
import { createOperatorSubscriber } from './OperatorSubscriber';
|
|
import { identity } from '../util/identity';
|
|
import { timer } from '../observable/timer';
|
|
import { innerFrom } from '../observable/innerFrom';
|
|
export function retry(configOrCount = Infinity) {
|
|
let config;
|
|
if (configOrCount && typeof configOrCount === 'object') {
|
|
config = configOrCount;
|
|
}
|
|
else {
|
|
config = {
|
|
count: configOrCount,
|
|
};
|
|
}
|
|
const { count = Infinity, delay, resetOnSuccess: resetOnSuccess = false } = config;
|
|
return count <= 0
|
|
? identity
|
|
: operate((source, subscriber) => {
|
|
let soFar = 0;
|
|
let innerSub;
|
|
const subscribeForRetry = () => {
|
|
let syncUnsub = false;
|
|
innerSub = source.subscribe(createOperatorSubscriber(subscriber, (value) => {
|
|
if (resetOnSuccess) {
|
|
soFar = 0;
|
|
}
|
|
subscriber.next(value);
|
|
}, undefined, (err) => {
|
|
if (soFar++ < count) {
|
|
const resub = () => {
|
|
if (innerSub) {
|
|
innerSub.unsubscribe();
|
|
innerSub = null;
|
|
subscribeForRetry();
|
|
}
|
|
else {
|
|
syncUnsub = true;
|
|
}
|
|
};
|
|
if (delay != null) {
|
|
const notifier = typeof delay === 'number' ? timer(delay) : innerFrom(delay(err, soFar));
|
|
const notifierSubscriber = createOperatorSubscriber(subscriber, () => {
|
|
notifierSubscriber.unsubscribe();
|
|
resub();
|
|
}, () => {
|
|
subscriber.complete();
|
|
});
|
|
notifier.subscribe(notifierSubscriber);
|
|
}
|
|
else {
|
|
resub();
|
|
}
|
|
}
|
|
else {
|
|
subscriber.error(err);
|
|
}
|
|
}));
|
|
if (syncUnsub) {
|
|
innerSub.unsubscribe();
|
|
innerSub = null;
|
|
subscribeForRetry();
|
|
}
|
|
};
|
|
subscribeForRetry();
|
|
});
|
|
}
|
|
//# sourceMappingURL=retry.js.map
|