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| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The SFC licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| |
| 'use strict' |
| |
| /** |
| * @fileoverview Defines WebDriver's logging system. The logging system is |
| * broken into major components: local and remote logging. |
| * |
| * The local logging API, which is anchored by the {@linkplain Logger} class is |
| * similar to Java's logging API. Loggers, retrieved by |
| * {@linkplain #getLogger getLogger(name)}, use hierarchical, dot-delimited |
| * namespaces (e.g. "" > "webdriver" > "webdriver.logging"). Recorded log |
| * messages are represented by the {@linkplain Entry} class. You can capture log |
| * records by {@linkplain Logger#addHandler attaching} a handler function to the |
| * desired logger. For convenience, you can quickly enable logging to the |
| * console by simply calling {@linkplain #installConsoleHandler |
| * installConsoleHandler}. |
| * |
| * The [remote logging API](https://github.com/SeleniumHQ/selenium/wiki/Logging) |
| * allows you to retrieve logs from a remote WebDriver server. This API uses the |
| * {@link Preferences} class to define desired log levels prior to creating |
| * a WebDriver session: |
| * |
| * var prefs = new logging.Preferences(); |
| * prefs.setLevel(logging.Type.BROWSER, logging.Level.DEBUG); |
| * |
| * var caps = Capabilities.chrome(); |
| * caps.setLoggingPrefs(prefs); |
| * // ... |
| * |
| * Remote log entries, also represented by the {@link Entry} class, may be |
| * retrieved via {@link webdriver.WebDriver.Logs}: |
| * |
| * driver.manage().logs().get(logging.Type.BROWSER) |
| * .then(function(entries) { |
| * entries.forEach(function(entry) { |
| * console.log('[%s] %s', entry.level.name, entry.message); |
| * }); |
| * }); |
| * |
| * **NOTE:** Only a few browsers support the remote logging API (notably |
| * Firefox and Chrome). Firefox supports basic logging functionality, while |
| * Chrome exposes robust |
| * [performance logging](https://chromedriver.chromium.org/logging) |
| * options. Remote logging is still considered a non-standard feature, and the |
| * APIs exposed by this module for it are non-frozen. This module will be |
| * updated, possibly breaking backwards-compatibility, once logging is |
| * officially defined by the |
| * [W3C WebDriver spec](http://www.w3.org/TR/webdriver/). |
| */ |
| |
| /** |
| * Defines a message level that may be used to control logging output. |
| * |
| * @final |
| */ |
| class Level { |
| /** |
| * @param {string} name the level's name. |
| * @param {number} level the level's numeric value. |
| */ |
| constructor(name, level) { |
| if (level < 0) { |
| throw new TypeError('Level must be >= 0') |
| } |
| |
| /** @private {string} */ |
| this.name_ = name |
| |
| /** @private {number} */ |
| this.value_ = level |
| } |
| |
| /** This logger's name. */ |
| get name() { |
| return this.name_ |
| } |
| |
| /** The numeric log level. */ |
| get value() { |
| return this.value_ |
| } |
| |
| /** @override */ |
| toString() { |
| return this.name |
| } |
| } |
| |
| /** |
| * Indicates no log messages should be recorded. |
| * @const |
| */ |
| Level.OFF = new Level('OFF', Infinity) |
| |
| /** |
| * Log messages with a level of `1000` or higher. |
| * @const |
| */ |
| Level.SEVERE = new Level('SEVERE', 1000) |
| |
| /** |
| * Log messages with a level of `900` or higher. |
| * @const |
| */ |
| Level.WARNING = new Level('WARNING', 900) |
| |
| /** |
| * Log messages with a level of `800` or higher. |
| * @const |
| */ |
| Level.INFO = new Level('INFO', 800) |
| |
| /** |
| * Log messages with a level of `700` or higher. |
| * @const |
| */ |
| Level.DEBUG = new Level('DEBUG', 700) |
| |
| /** |
| * Log messages with a level of `500` or higher. |
| * @const |
| */ |
| Level.FINE = new Level('FINE', 500) |
| |
| /** |
| * Log messages with a level of `400` or higher. |
| * @const |
| */ |
| Level.FINER = new Level('FINER', 400) |
| |
| /** |
| * Log messages with a level of `300` or higher. |
| * @const |
| */ |
| Level.FINEST = new Level('FINEST', 300) |
| |
| /** |
| * Indicates all log messages should be recorded. |
| * @const |
| */ |
| Level.ALL = new Level('ALL', 0) |
| |
| const ALL_LEVELS = /** !Set<Level> */ new Set([ |
| Level.OFF, |
| Level.SEVERE, |
| Level.WARNING, |
| Level.INFO, |
| Level.DEBUG, |
| Level.FINE, |
| Level.FINER, |
| Level.FINEST, |
| Level.ALL, |
| ]) |
| |
| const LEVELS_BY_NAME = /** !Map<string, !Level> */ new Map([ |
| [Level.OFF.name, Level.OFF], |
| [Level.SEVERE.name, Level.SEVERE], |
| [Level.WARNING.name, Level.WARNING], |
| [Level.INFO.name, Level.INFO], |
| [Level.DEBUG.name, Level.DEBUG], |
| [Level.FINE.name, Level.FINE], |
| [Level.FINER.name, Level.FINER], |
| [Level.FINEST.name, Level.FINEST], |
| [Level.ALL.name, Level.ALL], |
| ]) |
| |
| /** |
| * Converts a level name or value to a {@link Level} value. If the name/value |
| * is not recognized, {@link Level.ALL} will be returned. |
| * |
| * @param {(number|string)} nameOrValue The log level name, or value, to |
| * convert. |
| * @return {!Level} The converted level. |
| */ |
| function getLevel(nameOrValue) { |
| if (typeof nameOrValue === 'string') { |
| return LEVELS_BY_NAME.get(nameOrValue) || Level.ALL |
| } |
| if (typeof nameOrValue !== 'number') { |
| throw new TypeError('not a string or number') |
| } |
| for (let level of ALL_LEVELS) { |
| if (nameOrValue >= level.value) { |
| return level |
| } |
| } |
| return Level.ALL |
| } |
| |
| /** |
| * Describes a single log entry. |
| * |
| * @final |
| */ |
| class Entry { |
| /** |
| * @param {(!Level|string|number)} level The entry level. |
| * @param {string} message The log message. |
| * @param {number=} opt_timestamp The time this entry was generated, in |
| * milliseconds since 0:00:00, January 1, 1970 UTC. If omitted, the |
| * current time will be used. |
| * @param {string=} opt_type The log type, if known. |
| */ |
| constructor(level, message, opt_timestamp, opt_type) { |
| this.level = level instanceof Level ? level : getLevel(level) |
| this.message = message |
| this.timestamp = typeof opt_timestamp === 'number' ? opt_timestamp : Date.now() |
| this.type = opt_type || '' |
| } |
| |
| /** |
| * @return {{level: string, message: string, timestamp: number, |
| * type: string}} The JSON representation of this entry. |
| */ |
| toJSON() { |
| return { |
| level: this.level.name, |
| message: this.message, |
| timestamp: this.timestamp, |
| type: this.type, |
| } |
| } |
| } |
| |
| /** |
| * An object used to log debugging messages. Loggers use a hierarchical, |
| * dot-separated naming scheme. For instance, "foo" is considered the parent of |
| * the "foo.bar" and an ancestor of "foo.bar.baz". |
| * |
| * Each logger may be assigned a {@linkplain #setLevel log level}, which |
| * controls which level of messages will be reported to the |
| * {@linkplain #addHandler handlers} attached to this instance. If a log level |
| * is not explicitly set on a logger, it will inherit its parent. |
| * |
| * This class should never be directly instantiated. Instead, users should |
| * obtain logger references using the {@linkplain ./logging.getLogger() |
| * getLogger()} function. |
| * |
| * @final |
| */ |
| class Logger { |
| /** |
| * @param {string} name the name of this logger. |
| * @param {Level=} opt_level the initial level for this logger. |
| */ |
| constructor(name, opt_level) { |
| /** @private {string} */ |
| this.name_ = name |
| |
| /** @private {Level} */ |
| this.level_ = opt_level || null |
| |
| /** @private {Logger} */ |
| this.parent_ = null |
| |
| /** @private {Set<function(!Entry)>} */ |
| this.handlers_ = null |
| } |
| |
| /** @return {string} the name of this logger. */ |
| getName() { |
| return this.name_ |
| } |
| |
| /** |
| * @param {Level} level the new level for this logger, or `null` if the logger |
| * should inherit its level from its parent logger. |
| */ |
| setLevel(level) { |
| this.level_ = level |
| } |
| |
| /** @return {Level} the log level for this logger. */ |
| getLevel() { |
| return this.level_ |
| } |
| |
| /** |
| * @return {!Level} the effective level for this logger. |
| */ |
| getEffectiveLevel() { |
| let logger = this |
| let level |
| do { |
| level = logger.level_ |
| logger = logger.parent_ |
| } while (logger && !level) |
| return level || Level.OFF |
| } |
| |
| /** |
| * @param {!Level} level the level to check. |
| * @return {boolean} whether messages recorded at the given level are loggable |
| * by this instance. |
| */ |
| isLoggable(level) { |
| return level.value !== Level.OFF.value && level.value >= this.getEffectiveLevel().value |
| } |
| |
| /** |
| * Adds a handler to this logger. The handler will be invoked for each message |
| * logged with this instance, or any of its descendants. |
| * |
| * @param {function(!Entry)} handler the handler to add. |
| */ |
| addHandler(handler) { |
| if (!this.handlers_) { |
| this.handlers_ = new Set() |
| } |
| this.handlers_.add(handler) |
| } |
| |
| /** |
| * Removes a handler from this logger. |
| * |
| * @param {function(!Entry)} handler the handler to remove. |
| * @return {boolean} whether a handler was successfully removed. |
| */ |
| removeHandler(handler) { |
| if (!this.handlers_) { |
| return false |
| } |
| return this.handlers_.delete(handler) |
| } |
| |
| /** |
| * Logs a message at the given level. The message may be defined as a string |
| * or as a function that will return the message. If a function is provided, |
| * it will only be invoked if this logger's |
| * {@linkplain #getEffectiveLevel() effective log level} includes the given |
| * `level`. |
| * |
| * @param {!Level} level the level at which to log the message. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| log(level, loggable) { |
| if (!this.isLoggable(level)) { |
| return |
| } |
| let message = '[' + this.name_ + '] ' + (typeof loggable === 'function' ? loggable() : loggable) |
| let entry = new Entry(level, message, Date.now()) |
| for (let logger = this; logger; logger = logger.parent_) { |
| if (logger.handlers_) { |
| for (let handler of logger.handlers_) { |
| handler(entry) |
| } |
| } |
| } |
| } |
| |
| /** |
| * Logs a message at the {@link Level.SEVERE} log level. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| severe(loggable) { |
| this.log(Level.SEVERE, loggable) |
| } |
| |
| /** |
| * Logs a message at the {@link Level.WARNING} log level. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| warning(loggable) { |
| this.log(Level.WARNING, loggable) |
| } |
| |
| /** |
| * Logs a message at the {@link Level.INFO} log level. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| info(loggable) { |
| this.log(Level.INFO, loggable) |
| } |
| |
| /** |
| * Logs a message at the {@link Level.DEBUG} log level. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| debug(loggable) { |
| this.log(Level.DEBUG, loggable) |
| } |
| |
| /** |
| * Logs a message at the {@link Level.FINE} log level. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| fine(loggable) { |
| this.log(Level.FINE, loggable) |
| } |
| |
| /** |
| * Logs a message at the {@link Level.FINER} log level. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| finer(loggable) { |
| this.log(Level.FINER, loggable) |
| } |
| |
| /** |
| * Logs a message at the {@link Level.FINEST} log level. |
| * @param {(string|function(): string)} loggable the message to log, or a |
| * function that will return the message. |
| */ |
| finest(loggable) { |
| this.log(Level.FINEST, loggable) |
| } |
| } |
| |
| /** |
| * Maintains a collection of loggers. |
| * |
| * @final |
| */ |
| class LogManager { |
| constructor() { |
| /** @private {!Map<string, !Logger>} */ |
| this.loggers_ = new Map() |
| this.root_ = new Logger('', Level.OFF) |
| } |
| |
| /** |
| * Retrieves a named logger, creating it in the process. This function will |
| * implicitly create the requested logger, and any of its parents, if they |
| * do not yet exist. |
| * |
| * @param {string} name the logger's name. |
| * @return {!Logger} the requested logger. |
| */ |
| getLogger(name) { |
| if (!name) { |
| return this.root_ |
| } |
| let parent = this.root_ |
| for (let i = name.indexOf('.'); i != -1; i = name.indexOf('.', i + 1)) { |
| let parentName = name.substr(0, i) |
| parent = this.createLogger_(parentName, parent) |
| } |
| return this.createLogger_(name, parent) |
| } |
| |
| /** |
| * Creates a new logger. |
| * |
| * @param {string} name the logger's name. |
| * @param {!Logger} parent the logger's parent. |
| * @return {!Logger} the new logger. |
| * @private |
| */ |
| createLogger_(name, parent) { |
| if (this.loggers_.has(name)) { |
| return /** @type {!Logger} */ (this.loggers_.get(name)) |
| } |
| let logger = new Logger(name, null) |
| logger.parent_ = parent |
| this.loggers_.set(name, logger) |
| return logger |
| } |
| } |
| |
| const logManager = new LogManager() |
| |
| /** |
| * Retrieves a named logger, creating it in the process. This function will |
| * implicitly create the requested logger, and any of its parents, if they |
| * do not yet exist. |
| * |
| * The log level will be unspecified for newly created loggers. Use |
| * {@link Logger#setLevel(level)} to explicitly set a level. |
| * |
| * @param {string} name the logger's name. |
| * @return {!Logger} the requested logger. |
| */ |
| function getLogger(name) { |
| return logManager.getLogger(name) |
| } |
| |
| /** |
| * Pads a number to ensure it has a minimum of two digits. |
| * |
| * @param {number} n the number to be padded. |
| * @return {string} the padded number. |
| */ |
| function pad(n) { |
| if (n >= 10) { |
| return '' + n |
| } else { |
| return '0' + n |
| } |
| } |
| |
| /** |
| * Logs all messages to the Console API. |
| * @param {!Entry} entry the entry to log. |
| */ |
| function consoleHandler(entry) { |
| if (typeof console === 'undefined' || !console) { |
| return |
| } |
| |
| var timestamp = new Date(entry.timestamp) |
| var msg = |
| '[' + |
| timestamp.getUTCFullYear() + |
| '-' + |
| pad(timestamp.getUTCMonth() + 1) + |
| '-' + |
| pad(timestamp.getUTCDate()) + |
| 'T' + |
| pad(timestamp.getUTCHours()) + |
| ':' + |
| pad(timestamp.getUTCMinutes()) + |
| ':' + |
| pad(timestamp.getUTCSeconds()) + |
| 'Z] ' + |
| '[' + |
| entry.level.name + |
| '] ' + |
| entry.message |
| |
| var level = entry.level.value |
| if (level >= Level.SEVERE.value) { |
| console.error(msg) |
| } else if (level >= Level.WARNING.value) { |
| console.warn(msg) |
| } else { |
| console.log(msg) |
| } |
| } |
| |
| /** |
| * Adds the console handler to the given logger. The console handler will log |
| * all messages using the JavaScript Console API. |
| * |
| * @param {Logger=} opt_logger The logger to add the handler to; defaults |
| * to the root logger. |
| */ |
| function addConsoleHandler(opt_logger) { |
| let logger = opt_logger || logManager.root_ |
| logger.addHandler(consoleHandler) |
| } |
| |
| /** |
| * Removes the console log handler from the given logger. |
| * |
| * @param {Logger=} opt_logger The logger to remove the handler from; defaults |
| * to the root logger. |
| * @see exports.addConsoleHandler |
| */ |
| function removeConsoleHandler(opt_logger) { |
| let logger = opt_logger || logManager.root_ |
| logger.removeHandler(consoleHandler) |
| } |
| |
| /** |
| * Installs the console log handler on the root logger. |
| */ |
| function installConsoleHandler() { |
| addConsoleHandler(logManager.root_) |
| } |
| |
| /** |
| * Common log types. |
| * @enum {string} |
| */ |
| const Type = { |
| /** Logs originating from the browser. */ |
| BROWSER: 'browser', |
| /** Logs from a WebDriver client. */ |
| CLIENT: 'client', |
| /** Logs from a WebDriver implementation. */ |
| DRIVER: 'driver', |
| /** Logs related to performance. */ |
| PERFORMANCE: 'performance', |
| /** Logs from the remote server. */ |
| SERVER: 'server', |
| } |
| |
| /** |
| * Describes the log preferences for a WebDriver session. |
| * |
| * @final |
| */ |
| class Preferences { |
| constructor() { |
| /** @private {!Map<string, !Level>} */ |
| this.prefs_ = new Map() |
| } |
| |
| /** |
| * Sets the desired logging level for a particular log type. |
| * @param {(string|Type)} type The log type. |
| * @param {(!Level|string|number)} level The desired log level. |
| * @throws {TypeError} if `type` is not a `string`. |
| */ |
| setLevel(type, level) { |
| if (typeof type !== 'string') { |
| throw TypeError('specified log type is not a string: ' + typeof type) |
| } |
| this.prefs_.set(type, level instanceof Level ? level : getLevel(level)) |
| } |
| |
| /** |
| * Converts this instance to its JSON representation. |
| * @return {!Object<string, string>} The JSON representation of this set of |
| * preferences. |
| */ |
| toJSON() { |
| let json = {} |
| for (let key of this.prefs_.keys()) { |
| json[key] = this.prefs_.get(key).name |
| } |
| return json |
| } |
| } |
| |
| // PUBLIC API |
| |
| module.exports = { |
| Entry: Entry, |
| Level: Level, |
| LogManager: LogManager, |
| Logger: Logger, |
| Preferences: Preferences, |
| Type: Type, |
| addConsoleHandler: addConsoleHandler, |
| getLevel: getLevel, |
| getLogger: getLogger, |
| installConsoleHandler: installConsoleHandler, |
| removeConsoleHandler: removeConsoleHandler, |
| } |
| </code></pre></article></section></div></div></div><div class="search-container" id="PkfLWpAbet" style="display:none"><div class="wrapper" id="iCxFxjkHbP"><button class="icon-button search-close-button" id="VjLlGakifb" aria-label="close search"><svg><use xlink:href="#close-icon"></use></svg></button><div class="search-box-c"><svg><use xlink:href="#search-icon"></use></svg> <input type="text" id="vpcKVYIppa" class="search-input" placeholder="Search..." autofocus></div><div class="search-result-c" id="fWwVHRuDuN"><span class="search-result-c-text">Type anything to view search result</span></div></div></div><div class="mobile-menu-icon-container"><button class="icon-button" id="mobile-menu" data-isopen="false" aria-label="menu"><svg><use xlink:href="#menu-icon"></use></svg></button></div><div id="mobile-sidebar" class="mobile-sidebar-container"><div class="mobile-sidebar-wrapper"><a href="/" class="sidebar-title sidebar-title-anchor">Selenium WebDriver JavaScript API</a><div 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