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joplin/ReactNativeClient/lib/logger.js

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import moment from 'moment';
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import { _ } from 'lib/locale.js';
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import FsDriverDummy from 'lib/fs-driver-dummy.js';
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class Logger {
constructor() {
this.targets_ = [];
this.level_ = Logger.LEVEL_ERROR;
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this.fileAppendQueue_ = []
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}
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static fsDriver() {
if (!Logger.fsDriver_) Logger.fsDriver_ = new FsDriverDummy();
return Logger.fsDriver_;
}
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setLevel(level) {
this.level_ = level;
}
level() {
return this.level_;
}
clearTargets() {
this.targets_.clear();
}
addTarget(type, options = null) {
let target = { type: type };
for (let n in options) {
if (!options.hasOwnProperty(n)) continue;
target[n] = options[n];
}
this.targets_.push(target);
}
log(level, object) {
if (this.level() < level || !this.targets_.length) return;
let levelString = '';
if (this.level() == Logger.LEVEL_INFO) levelString = '[info] ';
if (this.level() == Logger.LEVEL_WARN) levelString = '[warn] ';
if (this.level() == Logger.LEVEL_ERROR) levelString = '[error] ';
let line = moment().format('YYYY-MM-DD HH:mm:ss') + ': ' + levelString;
for (let i = 0; i < this.targets_.length; i++) {
let t = this.targets_[i];
if (t.type == 'console') {
let fn = 'debug';
if (level = Logger.LEVEL_ERROR) fn = 'error';
if (level = Logger.LEVEL_WARN) fn = 'warn';
if (level = Logger.LEVEL_INFO) fn = 'info';
if (typeof object === 'object') {
console[fn](line, object);
} else {
console[fn](line + object);
}
} else if (t.type == 'file') {
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let serializedObject = '';
if (typeof object === 'object') {
if (object instanceof Error) {
serializedObject = object.toString();
if (object.stack) serializedObject += "\n" + object.stack;
} else {
serializedObject = JSON.stringify(object);
}
} else {
serializedObject = object;
}
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Logger.fsDriver().appendFileSync(t.path, line + serializedObject + "\n");
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// this.fileAppendQueue_.push({
// path: t.path,
// line: line + serializedObject + "\n",
// });
// this.scheduleFileAppendQueueProcessing_();
} else if (t.type == 'vorpal') {
t.vorpal.log(object);
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}
}
}
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// scheduleFileAppendQueueProcessing_() {
// if (this.fileAppendQueueTID_) return;
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// this.fileAppendQueueTID_ = setTimeout(async () => {
// this.fileAppendQueueTID_ = null;
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// let queue = this.fileAppendQueue_.slice(0);
// for (let i = 0; i < queue.length; i++) {
// let t = queue[i];
// await fs.appendFile(t.path, t.line);
// }
// this.fileAppendQueue_.splice(0, queue.length);
// }, 1);
// }
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error(object) { return this.log(Logger.LEVEL_ERROR, object); }
warn(object) { return this.log(Logger.LEVEL_WARN, object); }
info(object) { return this.log(Logger.LEVEL_INFO, object); }
debug(object) { return this.log(Logger.LEVEL_DEBUG, object); }
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static levelStringToId(s) {
if (s == 'none') return Logger.LEVEL_NONE;
if (s == 'error') return Logger.LEVEL_ERROR;
if (s == 'warn') return Logger.LEVEL_WARN;
if (s == 'info') return Logger.LEVEL_INFO;
if (s == 'debug') return Logger.LEVEL_DEBUG;
throw new Error(_('Unknown log level: %s', s));
}
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}
Logger.LEVEL_NONE = 0;
Logger.LEVEL_ERROR = 10;
Logger.LEVEL_WARN = 20;
Logger.LEVEL_INFO = 30;
Logger.LEVEL_DEBUG = 40;
export { Logger };