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445 lines
13 KiB
445 lines
13 KiB
/******/ (() => { // webpackBootstrap |
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/******/ "use strict"; |
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/******/ var __webpack_modules__ = ({ |
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/***/ "./src/database_wrapper.mjs": |
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/*!**********************************!*\ |
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!*** ./src/database_wrapper.mjs ***! |
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\**********************************/ |
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/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { |
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__webpack_require__.r(__webpack_exports__); |
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/* harmony export */ __webpack_require__.d(__webpack_exports__, { |
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/* harmony export */ "DatabaseWrapper": () => (/* binding */ DatabaseWrapper) |
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/* harmony export */ }); |
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/* harmony import */ var _transaction_manager_mjs__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./transaction_manager.mjs */ "./src/transaction_manager.mjs"); |
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class DatabaseWrapper { |
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constructor(dbName, version) { |
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this.name = dbName; |
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this.db = openDatabase(this.name, version, "", 5 * 1024 * 1024); |
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this.transManager = new _transaction_manager_mjs__WEBPACK_IMPORTED_MODULE_0__.TransactionManager(this.db); |
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} |
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sql(sql, ...args) { |
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const reg = /^\s*(BEGIN|END|COMMIT|ROLLBACK)(?:[^A-Z]|$)/i; |
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const match = reg.exec(sql); |
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if (match) { |
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const statement = match[1].toUpperCase(); |
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switch(statement) { |
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case "BEGIN": |
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return this.transManager.begin(); |
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case "END": |
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case "COMMIT": |
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return this.transManager.commit(); |
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case "ROLLBACK": |
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return this.transManager.rollback(); |
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} |
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} else { |
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return this.transManager.sql(sql, args); |
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} |
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} |
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} |
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/***/ }), |
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/***/ "./src/log.mjs": |
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/*!*********************!*\ |
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!*** ./src/log.mjs ***! |
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\*********************/ |
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/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { |
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__webpack_require__.r(__webpack_exports__); |
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/* harmony export */ __webpack_require__.d(__webpack_exports__, { |
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/* harmony export */ "log": () => (/* binding */ log), |
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/* harmony export */ "enableDebug": () => (/* binding */ enableDebug) |
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/* harmony export */ }); |
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let DEBUG = false; |
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function log(...args) { |
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if (DEBUG) { |
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console.log(...args); |
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} |
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} |
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function enableDebug(active) { |
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DEBUG = !!active; |
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log("PawSQLite-WebSQL-Adapter: debugging " + ( |
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DEBUG ? "enabled" : "disabled") |
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); |
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} |
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/***/ }), |
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/***/ "./src/response_wrapper.mjs": |
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/*!**********************************!*\ |
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!*** ./src/response_wrapper.mjs ***! |
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\**********************************/ |
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/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { |
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__webpack_require__.r(__webpack_exports__); |
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/* harmony export */ __webpack_require__.d(__webpack_exports__, { |
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/* harmony export */ "ResponseWrapper": () => (/* binding */ ResponseWrapper) |
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/* harmony export */ }); |
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const ResponseWrapper = { |
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success: (obj = {}) => ({ |
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success: true, |
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...obj |
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}) |
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}; |
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/***/ }), |
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/***/ "./src/result_mapper.mjs": |
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/*!*******************************!*\ |
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!*** ./src/result_mapper.mjs ***! |
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\*******************************/ |
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/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { |
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__webpack_require__.r(__webpack_exports__); |
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/* harmony export */ __webpack_require__.d(__webpack_exports__, { |
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/* harmony export */ "mapResult": () => (/* binding */ mapResult) |
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/* harmony export */ }); |
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function mapResult(originalResult) { |
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const newResult = {}; |
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if (!originalResult) { |
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return newResult; |
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} |
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try { |
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newResult.insertId = originalResult.insertId; |
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} catch (e) {} |
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newResult.rowsAffected = originalResult.rowsAffected; |
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if ("rows" in originalResult) { |
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newResult.rows = []; |
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for (let i = 0; i < originalResult.rows.length; i++) { |
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newResult.rows.push(originalResult.rows.item(i)); |
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} |
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} |
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return newResult; |
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} |
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/***/ }), |
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/***/ "./src/transaction_manager.mjs": |
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/*!*************************************!*\ |
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!*** ./src/transaction_manager.mjs ***! |
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\*************************************/ |
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/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { |
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__webpack_require__.r(__webpack_exports__); |
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/* harmony export */ __webpack_require__.d(__webpack_exports__, { |
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/* harmony export */ "TransactionManager": () => (/* binding */ TransactionManager) |
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/* harmony export */ }); |
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/* harmony import */ var _websql_adapter_error_mjs__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./websql_adapter_error.mjs */ "./src/websql_adapter_error.mjs"); |
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/* harmony import */ var _result_mapper_mjs__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./result_mapper.mjs */ "./src/result_mapper.mjs"); |
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/* harmony import */ var _log_mjs__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./log.mjs */ "./src/log.mjs"); |
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class Task { |
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constructor(job, startsTransaction=false, endsTransaction=false) { |
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this._job = job; |
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if (startsTransaction && endsTransaction) { |
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throw new Error("Task cannot start and end a transaction."); |
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} |
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this.startsTransaction = startsTransaction; |
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this.endsTransaction = endsTransaction; |
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this.result = new Promise ((resolve, reject) => { |
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this._resolve = resolve; |
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this._reject = reject; |
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}); |
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} |
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run(tx) { |
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return this._job(tx).then((result) => { |
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this._resolve(result); |
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return result; |
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}, (e) => { |
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this._reject(e); |
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}); |
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} |
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} |
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class TransactionManager { |
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constructor(db) { |
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this.db = db; |
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this._txCount = 0; |
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this._tasks = []; |
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this._processing = false; |
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} |
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begin() { |
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return this._addTask(new Task((tx) => { |
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return new Promise((resolve, reject) => { |
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if (tx) { |
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reject(new _websql_adapter_error_mjs__WEBPACK_IMPORTED_MODULE_0__.WebSQLAdapterError("BEGIN called with an active " + |
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"transaction. This should not happen")); |
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return; |
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} |
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this.db.transaction((tx) => { |
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resolve(tx); |
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}); |
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}); |
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}, true)).then(() => (0,_result_mapper_mjs__WEBPACK_IMPORTED_MODULE_1__.mapResult)()); |
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} |
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sql(sql, args = []) { |
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return this._addTask(new Task((tx) => { |
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return this._executeSql(tx, sql, args); |
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})); |
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} |
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commit() { |
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return this._addTask(new Task((tx) => { |
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return Promise.resolve((0,_result_mapper_mjs__WEBPACK_IMPORTED_MODULE_1__.mapResult)()); |
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}, false, true)); |
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} |
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rollback() { |
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// Hack to manually cause rollback: |
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// Intentionally cause an error with rollbackOnError set to true |
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return this._addTask(new Task((tx) => { |
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return this._executeSql(tx, "", [], true).catch(() => (0,_result_mapper_mjs__WEBPACK_IMPORTED_MODULE_1__.mapResult)()); |
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}, false, true)); |
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} |
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async _process() { |
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if (this._processing) { |
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return; |
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} |
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this._processing = true; |
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let tx = null; |
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let keepaliveCount = 0; |
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while (true) { |
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const tasks = this._tasks; |
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this._tasks = []; |
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if (tasks.length) { |
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const promises = []; |
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for (const task of tasks) { |
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const promise = task.run(tx); |
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if (task.startsTransaction) { |
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tx = await promise; |
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this._txCount++; |
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} else { |
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if (task.endsTransaction) { |
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tx = null; |
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keepaliveCount = 0; |
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} |
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promises.push(promise); |
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} |
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} |
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await Promise.all(promises); |
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} else { |
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if (tx) { |
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await this._nop(tx); |
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keepaliveCount++; |
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if (keepaliveCount % 5000 === 0) { |
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(0,_log_mjs__WEBPACK_IMPORTED_MODULE_2__.log)(`Transaction: ${ this._txCount } Keepalive: #${ keepaliveCount }`); |
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} |
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} else { |
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break; |
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} |
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} |
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} |
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this._processing = false; |
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} |
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_addTask(task) { |
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this._tasks.push(task); |
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this._process(); |
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return task.result; |
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} |
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_executeSql(tx, sql, sqlArgs = [], rollbackOnError = false) { |
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return new Promise((resolve, reject) => { |
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if (!tx) { |
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reject(new _websql_adapter_error_mjs__WEBPACK_IMPORTED_MODULE_0__.WebSQLAdapterError("No transaction. This should not be " + |
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" possible")); |
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return; |
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} |
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tx.executeSql(sql, sqlArgs, (tx, result) => { |
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resolve((0,_result_mapper_mjs__WEBPACK_IMPORTED_MODULE_1__.mapResult)(result)); |
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}, (tx, e) => { |
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reject(_websql_adapter_error_mjs__WEBPACK_IMPORTED_MODULE_0__.WebSQLAdapterError.from(e)); |
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return rollbackOnError; |
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}); |
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}); |
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} |
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_nop(tx) { |
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return this._executeSql(tx, "SELECT 1"); |
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} |
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} |
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/***/ }), |
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/***/ "./src/websql_adapter_error.mjs": |
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/*!**************************************!*\ |
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!*** ./src/websql_adapter_error.mjs ***! |
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\**************************************/ |
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/***/ ((__unused_webpack___webpack_module__, __webpack_exports__, __webpack_require__) => { |
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__webpack_require__.r(__webpack_exports__); |
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/* harmony export */ __webpack_require__.d(__webpack_exports__, { |
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/* harmony export */ "WebSQLAdapterError": () => (/* binding */ WebSQLAdapterError) |
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/* harmony export */ }); |
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class WebSQLAdapterError extends Error { |
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static from(e) { |
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let message = ""; |
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if (e && e.message) { |
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message = e.message; |
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} |
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return new WebSQLAdapterError(message); |
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} |
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} |
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/***/ }) |
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/******/ }); |
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/************************************************************************/ |
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/******/ // The module cache |
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/******/ var __webpack_module_cache__ = {}; |
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/******/ |
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/******/ // The require function |
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/******/ function __webpack_require__(moduleId) { |
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/******/ // Check if module is in cache |
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/******/ if(__webpack_module_cache__[moduleId]) { |
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/******/ return __webpack_module_cache__[moduleId].exports; |
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/******/ } |
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/******/ // Create a new module (and put it into the cache) |
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/******/ var module = __webpack_module_cache__[moduleId] = { |
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/******/ // no module.id needed |
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/******/ // no module.loaded needed |
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/******/ exports: {} |
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/******/ }; |
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/******/ |
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/******/ // Execute the module function |
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/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__); |
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/******/ |
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/******/ // Return the exports of the module |
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/******/ return module.exports; |
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/******/ } |
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/******/ |
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/************************************************************************/ |
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/******/ /* webpack/runtime/define property getters */ |
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/******/ (() => { |
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/******/ // define getter functions for harmony exports |
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/******/ __webpack_require__.d = (exports, definition) => { |
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/******/ for(var key in definition) { |
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/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) { |
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/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] }); |
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/******/ } |
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/******/ } |
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/******/ }; |
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/******/ })(); |
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/******/ |
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/******/ /* webpack/runtime/hasOwnProperty shorthand */ |
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/******/ (() => { |
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/******/ __webpack_require__.o = (obj, prop) => (Object.prototype.hasOwnProperty.call(obj, prop)) |
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/******/ })(); |
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/******/ |
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/******/ /* webpack/runtime/make namespace object */ |
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/******/ (() => { |
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/******/ // define __esModule on exports |
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/******/ __webpack_require__.r = (exports) => { |
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/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) { |
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/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' }); |
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/******/ } |
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/******/ Object.defineProperty(exports, '__esModule', { value: true }); |
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/******/ }; |
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/******/ })(); |
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/******/ |
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/************************************************************************/ |
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var __webpack_exports__ = {}; |
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// This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk. |
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(() => { |
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/*!********************************!*\ |
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!*** ./src/websql_adapter.mjs ***! |
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\********************************/ |
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__webpack_require__.r(__webpack_exports__); |
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/* harmony export */ __webpack_require__.d(__webpack_exports__, { |
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/* harmony export */ "PawSQLiteWebSQLAdapter": () => (/* binding */ PawSQLiteWebSQLAdapter) |
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/* harmony export */ }); |
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/* harmony import */ var _websql_adapter_error_mjs__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./websql_adapter_error.mjs */ "./src/websql_adapter_error.mjs"); |
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/* harmony import */ var _database_wrapper_mjs__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./database_wrapper.mjs */ "./src/database_wrapper.mjs"); |
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/* harmony import */ var _response_wrapper_mjs__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./response_wrapper.mjs */ "./src/response_wrapper.mjs"); |
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/* harmony import */ var _log_mjs__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./log.mjs */ "./src/log.mjs"); |
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const databases = new Map(); |
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const PawSQLiteWebSQLAdapter = { |
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name: "PawSQLiteWebSQLAdapter", |
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open: async (dbName) => { |
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const version = "1.0"; |
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if (!databases.has(dbName)) { |
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databases.set(dbName, new _database_wrapper_mjs__WEBPACK_IMPORTED_MODULE_1__.DatabaseWrapper(dbName, version)); |
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} |
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return _response_wrapper_mjs__WEBPACK_IMPORTED_MODULE_2__.ResponseWrapper.success({ version }); |
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}, |
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close: async (dbName) => { |
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databases.delete(dbName); |
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return _response_wrapper_mjs__WEBPACK_IMPORTED_MODULE_2__.ResponseWrapper.success(); |
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}, |
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sql: async (dbName, sql, ...args) => { |
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(0,_log_mjs__WEBPACK_IMPORTED_MODULE_3__.log)(sql); |
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const db = databases.get(dbName); |
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if (!db) { |
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throw new _websql_adapter_error_mjs__WEBPACK_IMPORTED_MODULE_0__.WebSQLAdapterError("Database not open"); |
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} |
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const result = await db.sql(sql, ...args); |
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return _response_wrapper_mjs__WEBPACK_IMPORTED_MODULE_2__.ResponseWrapper.success(result); |
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}, |
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delete: async (dbName) => { |
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throw new _websql_adapter_error_mjs__WEBPACK_IMPORTED_MODULE_0__.WebSQLAdapterError("Delete not implemented"); |
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}, |
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debug: _log_mjs__WEBPACK_IMPORTED_MODULE_3__.enableDebug |
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}; |
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})(); |
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module.exports = __webpack_exports__.PawSQLiteWebSQLAdapter; |
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/******/ })() |
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; |
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//# sourceMappingURL=pawsqlite-websql-adapter.js.map
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