@egodigital/egoose/lib/mongo/statistics.js

Helper classes and functions for Node.js 10 or later.

"use strict";
/**
 * This file is part of the @egodigital/egoose distribution.
 * Copyright (c) e.GO Digital GmbH, Aachen, Germany (https://www.e-go-digital.com/)
 *
 * @egodigital/egoose is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, version 3.
 *
 * @egodigital/egoose is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
Object.defineProperty(exports, "__esModule", { value: true });
exports.MongoDatabaseStatisticProviderBase = void 0;
const statistics_1 = require("../statistics");
/**
 * A basic statistic provider that loads data from Mongo database.
 */
class MongoDatabaseStatisticProviderBase extends statistics_1.StatisticProviderBase {
    /**
     * Initializes a new instance of that class.
     *
     * @param {TDatabase} database The underlying database connection.
     */
    constructor(database) {
        super();
        this.database = database;
    }
    /** @inheritdoc */
    async close() {
        await this.database
            .disconnect();
    }
    /**
     * Counts all documents of a collection.
     *
     * @param {Function} modelSelector The function that returns the model to use.
     * @param {any} [filter] The optional filter.
     *
     * @return {Promise<number>} The promise that contains the number of documents.
     */
    async countDocuments(modelSelector, filter) {
        return await modelSelector(this.database)
            .find(filter)
            .countDocuments()
            .exec();
    }
}
exports.MongoDatabaseStatisticProviderBase = MongoDatabaseStatisticProviderBase;
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