106 lines
3.3 KiB
JavaScript
106 lines
3.3 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.ROUND_ROBIN_STRATEGY_NAME = undefined;
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var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');
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var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);
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var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');
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var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
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var _createClass2 = require('babel-runtime/helpers/createClass');
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var _createClass3 = _interopRequireDefault(_createClass2);
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var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');
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var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);
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var _inherits2 = require('babel-runtime/helpers/inherits');
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var _inherits3 = _interopRequireDefault(_inherits2);
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var _roundRobinArrayIndex = require('./round-robin-array-index');
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var _roundRobinArrayIndex2 = _interopRequireDefault(_roundRobinArrayIndex);
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var _loadBalancingStrategy = require('./load-balancing-strategy');
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var _loadBalancingStrategy2 = _interopRequireDefault(_loadBalancingStrategy);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* Copyright (c) 2002-2018 "Neo4j,"
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* Neo4j Sweden AB [http://neo4j.com]
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*
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* This file is part of Neo4j.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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var ROUND_ROBIN_STRATEGY_NAME = exports.ROUND_ROBIN_STRATEGY_NAME = 'round_robin';
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var RoundRobinLoadBalancingStrategy = function (_LoadBalancingStrateg) {
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(0, _inherits3.default)(RoundRobinLoadBalancingStrategy, _LoadBalancingStrateg);
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function RoundRobinLoadBalancingStrategy() {
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(0, _classCallCheck3.default)(this, RoundRobinLoadBalancingStrategy);
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var _this = (0, _possibleConstructorReturn3.default)(this, (RoundRobinLoadBalancingStrategy.__proto__ || (0, _getPrototypeOf2.default)(RoundRobinLoadBalancingStrategy)).call(this));
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_this._readersIndex = new _roundRobinArrayIndex2.default();
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_this._writersIndex = new _roundRobinArrayIndex2.default();
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return _this;
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}
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/**
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* @inheritDoc
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*/
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(0, _createClass3.default)(RoundRobinLoadBalancingStrategy, [{
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key: 'selectReader',
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value: function selectReader(knownReaders) {
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return this._select(knownReaders, this._readersIndex);
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}
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/**
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* @inheritDoc
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*/
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}, {
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key: 'selectWriter',
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value: function selectWriter(knownWriters) {
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return this._select(knownWriters, this._writersIndex);
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}
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}, {
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key: '_select',
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value: function _select(addresses, roundRobinIndex) {
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var length = addresses.length;
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if (length === 0) {
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return null;
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}
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var index = roundRobinIndex.next(length);
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return addresses[index];
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}
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}]);
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return RoundRobinLoadBalancingStrategy;
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}(_loadBalancingStrategy2.default);
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exports.default = RoundRobinLoadBalancingStrategy; |