444 lines
13 KiB
JavaScript
444 lines
13 KiB
JavaScript
/******/ (() => { // 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 */ "default": () => (__WEBPACK_DEFAULT_EXPORT__)
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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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/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = ({
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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["pawsqlite-websql-adapter"] = __webpack_exports__.default;
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/******/ })()
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;
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//# sourceMappingURL=pawsqlite-websql-adapter.js.map
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