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33 lines
814 B
33 lines
814 B
'use strict';
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var LRU = require('lru-cache');
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var NoCache = require('./no_cache');
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/**
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* This module abstracts the creation of a tableCache,
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* depending on the configuration passed along
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*/
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function TableCacheFactory() {
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}
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module.exports = TableCacheFactory;
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TableCacheFactory.prototype.build = function (settings) {
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var enabled = settings.tableCacheEnabled || false;
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var tableCache = null;
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if(enabled) {
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tableCache = LRU({
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// store no more than these many items in the cache
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max: settings.tableCacheMax || 8192,
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// consider entries expired after these many milliseconds (10 minutes by default)
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maxAge: settings.tableCacheMaxAge || 1000*60*10
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});
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} else {
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tableCache = new NoCache();
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}
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return tableCache;
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};
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