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53 lines
1.6 KiB
JavaScript
53 lines
1.6 KiB
JavaScript
'use strict';
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const Topology = require('mongodb-core').Topology;
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const ServerCapabilities = require('./topology_base').ServerCapabilities;
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const Cursor = require('../cursor');
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const translateOptions = require('../utils').translateOptions;
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class NativeTopology extends Topology {
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constructor(servers, options) {
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options = options || {};
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let clonedOptions = Object.assign(
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{},
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{
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cursorFactory: Cursor,
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reconnect: false,
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emitError: typeof options.emitError === 'boolean' ? options.emitError : true,
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size: typeof options.poolSize === 'number' ? options.poolSize : 5,
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monitorCommands:
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typeof options.monitorCommands === 'boolean' ? options.monitorCommands : false
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}
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);
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// Translate any SSL options and other connectivity options
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clonedOptions = translateOptions(clonedOptions, options);
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// Socket options
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var socketOptions =
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options.socketOptions && Object.keys(options.socketOptions).length > 0
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? options.socketOptions
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: options;
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// Translate all the options to the mongodb-core ones
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clonedOptions = translateOptions(clonedOptions, socketOptions);
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super(servers, clonedOptions);
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// Do we have an application specific string
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if (options.appname) {
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this.s.clientInfo.application = { name: options.appname };
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}
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}
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capabilities() {
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if (this.s.sCapabilities) return this.s.sCapabilities;
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if (this.lastIsMaster() == null) return null;
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this.s.sCapabilities = new ServerCapabilities(this.lastIsMaster());
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return this.s.sCapabilities;
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}
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}
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module.exports = NativeTopology;
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