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angular-loggly-logger.js
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angular-loggly-logger.js
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/**
* logglyLogger is a module which will send your log messages to a configured
* [Loggly](http://loggly.com) connector.
*
* Major credit should go to Thomas Burleson, who's highly informative blog
* post on [Enhancing AngularJs Logging using Decorators](http://bit.ly/1pOI0bb)
* provided the foundation (if not the majority of the brainpower) for this
* module.
*/
; (function( angular ) {
"use strict";
angular.module( 'logglyLogger.logger', [] )
.provider( 'LogglyLogger', function() {
var self = this;
var logSuccessHandler;
var logFailureHandler;
var https = true;
var extra = {};
var includeCurrentUrl = false;
var includeTimestamp = false;
var tag = 'angular';
var sendConsoleErrors = false;
var token = null;
var endpoint = '://logs-01.loggly.com/inputs/';
var buildUrl = function ( data ) {
var msg = encodeURIComponent( angular.toJson( data ) );
return (https ? 'https' : 'http') + endpoint + token + '/tag/'+ tag + '/.gif?PLAINTEXT=' + msg;
};
this.setExtra = function (d) {
extra = d;
return self;
};
this.inputToken = function ( s ) {
if (angular.isDefined(s)) {
token = s;
return self;
}
return token;
};
this.useHttps = function (flag) {
if (angular.isDefined(flag)) {
https = !!flag;
return self;
}
return https;
};
this.includeUrl = function (flag) {
if (angular.isDefined(flag)) {
includeCurrentUrl = !!flag;
return self;
}
return includeCurrentUrl;
};
this.includeTimestamp = function (flag) {
if (angular.isDefined(flag)) {
includeTimestamp = !!flag;
return self;
}
return includeTimestamp;
};
this.inputTag = function (usrTag){
if (angular.isDefined(usrTag)) {
tag = usrTag;
return self;
}
return tag;
}
this.sendConsoleErrors = function (flag){
if (angular.isDefined(flag)) {
sendConsoleErrors = flag;
return self;
}
return sendConsoleErrors;
}
this.$get = [ '$injector', function ($injector) {
var lastLog = null;
/**
* Send the specified data to loggly as a json message.
* @param data
*/
var sendMessage = function (data) {
//If a token is not configured, don't do anything.
if (!token) {
return;
}
//TODO we're injecting this here to resolve circular dependency issues. Is this safe?
var $location = $injector.get( '$location' );
lastLog = new Date();
var sentData = angular.extend({}, extra, data);
if (includeCurrentUrl) {
sentData.url = $location.absUrl()
}
if( includeTimestamp ) {
sentData.timestamp = lastLog.toISOString();
}
//Loggly's API doesn't send us cross-domain headers, so we can't interact directly
new Image().src = buildUrl(sentData);
};
var attach = function() {
};
return {
lastLog: function(){ return lastLog },
sendConsoleErrors: function(){ return sendConsoleErrors },
attach: attach,
sendMessage: sendMessage
}
}];
} );
angular.module( 'logglyLogger', ['logglyLogger.logger'] )
.config( [ '$provide', function( $provide ) {
$provide.decorator('$log', [ "$delegate", '$injector', function ( $delegate, $injector ) {
var wrapLogFunction = function(logFn, level, loggerName) {
var logger = $injector.get('LogglyLogger');
var wrappedFn = function () {
var args = Array.prototype.slice.call(arguments);
logFn.apply(null, args);
var msg = args.length == 1 ? args[0] : args;
var sending = { level: level };
if(angular.isDefined(msg.stack)){
//handling console errors
if(logger.sendConsoleErrors() === true){
sending.message = msg.message;
sending.stack = msg.stack;
}
else{
return;
}
}
else if(angular.isObject(msg)){
//handling JSON objects
sending = angular.extend({}, msg, sending);
}
else{
//sending plain text
sending.message = msg;
}
if( loggerName ) {
sending.logger = msg
}
//Send the message to through the loggly sender
logger.sendMessage( sending );
};
wrappedFn.logs = [];
return wrappedFn;
};
var _$log = (function ($delegate) {
return {
log: $delegate.log,
info: $delegate.info,
warn: $delegate.warn,
error: $delegate.error
};
})($delegate);
var getLogger = function ( name ) {
return {
log: wrapLogFunction( _$log.log, 'INFO', name ),
info: wrapLogFunction( _$log.info, 'INFO', name ),
warn: wrapLogFunction( _$log.warn, 'WARN', name ),
debug: wrapLogFunction( _$log.debug, 'DEBUG', name ),
error: wrapLogFunction( _$log.error, 'ERROR', name )
}
};
//wrap the existing API
$delegate.log = wrapLogFunction($delegate.log, 'INFO');
$delegate.info = wrapLogFunction($delegate.info, 'INFO');
$delegate.warn = wrapLogFunction($delegate.warn, 'WARN');
$delegate.debug = wrapLogFunction($delegate.debug, 'DEBUG');
$delegate.error = wrapLogFunction($delegate.error, 'ERROR');
//Add some methods
$delegate.getLogger = getLogger;
return $delegate;
}]);
}]);
})(window.angular);