1 |
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2 |
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3 |
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4 | 'use strict';
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5 |
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6 | const Base = require('./Cache');
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7 |
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8 | module.exports = class MemoryCache extends Base {
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9 |
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10 | _cache = {};
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11 |
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12 | getValue (key) {
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13 | const value = this._cache[key];
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14 | if (value && (value[1] === 0 || value[1] > Date.now())) {
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15 | return value[0];
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16 | }
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17 | }
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18 |
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19 | setValue (key, value, duration) {
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20 | if (duration) {
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21 | duration = Date.now() + duration * 1000;
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22 | }
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23 | this._cache[key] = [value, duration];
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24 | }
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25 |
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26 | removeValue (key) {
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27 | if (Object.prototype.hasOwnProperty.call(this._cache, key)) {
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28 | delete this._cache[key];
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29 | }
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30 | }
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31 |
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32 | flushValues () {
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33 | this._cache = {};
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34 | }
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35 | }; |
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