mirror of
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76 lines
2.6 KiB
JavaScript
76 lines
2.6 KiB
JavaScript
/**
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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*/
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var loggerInstance;
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var util = require('util');
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var EventEmitter = require('events').EventEmitter;
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var CordovaError = require('cordova-common').CordovaError;
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/**
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* @class ConsoleLogger
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* @extends EventEmitter
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*
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* Implementing basic logging for platform. Inherits regular NodeJS
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* EventEmitter. All events, emitted on this class instance are immediately
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* logged to console.
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*
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* Also attaches handler to process' uncaught exceptions, so these exceptions
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* logged to console similar to regular error events.
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*/
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function ConsoleLogger() {
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EventEmitter.call(this);
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var isVerbose = process.argv.indexOf('-d') >= 0 || process.argv.indexOf('--verbose') >= 0;
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// For CordovaError print only the message without stack trace unless we
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// are in a verbose mode.
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process.on('uncaughtException', function(err){
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if ((err instanceof CordovaError) && isVerbose) {
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console.error(err.stack);
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} else {
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console.error(err.message);
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}
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process.exit(1);
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});
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this.on('results', console.log);
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this.on('verbose', function () {
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if (isVerbose)
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console.log.apply(console, arguments);
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});
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this.on('info', console.log);
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this.on('log', console.log);
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this.on('warn', console.warn);
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}
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util.inherits(ConsoleLogger, EventEmitter);
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/**
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* Returns already instantiated/newly created instance of ConsoleLogger class.
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* This method should be used instead of creating ConsoleLogger directly,
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* otherwise we'll get multiple handlers attached to process'
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* uncaughtException
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*
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* @return {ConsoleLogger} New or already created instance of ConsoleLogger
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*/
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ConsoleLogger.get = function () {
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loggerInstance = loggerInstance || new ConsoleLogger();
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return loggerInstance;
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};
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module.exports = ConsoleLogger;
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