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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 1x 1x 1x 1x 1x 1x | 'use strict';
import {isEmpty} from 'lodash';
import {Model} from 'mongoose';
import AStore from './a.store';
import EStoreType from '../_enums/store.type.enum';
import getHrtimeAsNumber from '../functions/performance/get.hrtime.as.number';
require('json-circular-stringify');
export default class CountStore extends AStore {
constructor(model: Model<any>, target: string) {
super(model, target);
this._type = EStoreType.COUNT;
Object.setPrototypeOf(this, CountStore.prototype);
}
protected shouldReload(change: any): boolean {
Iif (this.isInitialSubscription(change)) return true;
const {operationType: type} = change;
switch (type) {
case 'delete':
case 'insert':
return true;
case 'replace':
case 'update':
default:
return false;
}
}
protected async load(change: any): Promise<void> {
const startTime: number = getHrtimeAsNumber();
Iif (isEmpty(this._config)) return this.emitOne(startTime, this._subscriptionId);
Iif (!this.shouldReload(change)) return;
// console.log('[@owservable] -> CountStore::load', JSON.stringify(change));
const count = await this._model.countDocuments(this._query);
this.emitOne(startTime, this._subscriptionId, count);
}
}
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