cbf7417c0f
- Add DevContainer configuration for Codespaces - Add GitHub Actions workflows for automation - Add Ollama support to Memory plugin - Add comprehensive documentation
78 lines
2.1 KiB
JavaScript
78 lines
2.1 KiB
JavaScript
"use strict";
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// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: Copyright The LanceDB Authors
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.TTLCache = void 0;
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exports.toSQL = toSQL;
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exports.packBits = packBits;
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function toSQL(value) {
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if (typeof value === "string") {
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return `'${value.replace(/'/g, "''")}'`;
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}
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else if (typeof value === "number") {
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return value.toString();
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}
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else if (typeof value === "boolean") {
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return value ? "TRUE" : "FALSE";
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}
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else if (value === null) {
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return "NULL";
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}
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else if (value instanceof Date) {
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return `'${value.toISOString()}'`;
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}
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else if (Array.isArray(value)) {
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return `[${value.map(toSQL).join(", ")}]`;
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}
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else if (Buffer.isBuffer(value)) {
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return `X'${value.toString("hex")}'`;
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}
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else if (value instanceof ArrayBuffer) {
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return `X'${Buffer.from(value).toString("hex")}'`;
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}
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else {
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throw new Error(`Unsupported value type: ${typeof value} value: (${value})`);
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}
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}
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function packBits(data) {
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const packed = Array(data.length >> 3).fill(0);
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for (let i = 0; i < data.length; i++) {
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const byte = i >> 3;
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const bit = i & 7;
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packed[byte] |= data[i] << bit;
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}
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return packed;
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}
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class TTLCache {
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ttl;
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// biome-ignore lint/suspicious/noExplicitAny: <explanation>
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cache;
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/**
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* @param ttl Time to live in milliseconds
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*/
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constructor(ttl) {
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this.ttl = ttl;
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this.cache = new Map();
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}
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// biome-ignore lint/suspicious/noExplicitAny: <explanation>
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get(key) {
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const entry = this.cache.get(key);
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if (entry === undefined) {
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return undefined;
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}
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if (entry.expires < Date.now()) {
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this.cache.delete(key);
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return undefined;
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}
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return entry.value;
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}
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// biome-ignore lint/suspicious/noExplicitAny: <explanation>
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set(key, value) {
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this.cache.set(key, { value, expires: Date.now() + this.ttl });
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}
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delete(key) {
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this.cache.delete(key);
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}
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}
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exports.TTLCache = TTLCache;
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