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Текущая директория: /opt/BitGoJS/node_modules/@hashgraph/sdk/src/client
Просмотр файла: MirrorNetwork.js

/*-
 * ‌
 * Hedera JavaScript SDK
 * 
 * Copyright (C) 2020 - 2022 Hedera Hashgraph, LLC
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * ‍
 */

import MirrorNode from "../MirrorNode.js";
import ManagedNetwork from "./ManagedNetwork.js";

/**
 * @typedef {import("../channel/MirrorChannel.js").default} MirrorChannel
 */

/**
 * @augments {ManagedNetwork<MirrorChannel, MirrorNode, string>}
 */
export default class MirrorNetwork extends ManagedNetwork {
    /**
     * @param {(address: string) => MirrorChannel} channelInitFunction
     */
    constructor(channelInitFunction) {
        super(channelInitFunction);
    }

    /**
     * @param {string[]} network
     */
    setNetwork(network) {
        // eslint-disable-next-line ie11/no-collection-args
        this._setNetwork(new Map(network.map((address) => [address, address])));
    }

    /**
     * @returns {string[]}
     */
    get network() {
        /**
         * @type {string[]}
         */
        var n = [];

        // eslint-disable-next-line @typescript-eslint/no-unused-vars
        for (const node of this._nodes) {
            n.push(node.address.toString());
        }

        return n;
    }

    /**
     * @abstract
     * @param {[string, string]} entry
     * @returns {MirrorNode}
     */
    _createNodeFromNetworkEntry(entry) {
        return new MirrorNode({
            newNode: {
                address: entry[1],
                channelInitFunction: this._createNetworkChannel,
            },
        }).setMinBackoff(this._minBackoff);
    }

    /**
     * @abstract
     * @param {Map<string, string>} network
     * @returns {number[]}
     */
    _getNodesToRemove(network) {
        const indexes = [];

        const values = Object.values(network);

        for (let i = this._nodes.length - 1; i >= 0; i--) {
            const node = this._nodes[i];

            if (!values.includes(node.address.toString())) {
                indexes.push(i);
            }
        }

        return indexes;
    }

    /**
     * @returns {MirrorNode}
     */
    getNextMirrorNode() {
        if (this._createNetworkChannel == null) {
            throw new Error("mirror network not supported on browser");
        }

        return this._getNumberOfMostHealthyNodes(1)[0];
    }
}
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