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4 <title>Code coverage report for Logger.ts</title>
5 <meta charset="utf-8" />
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17 <div class='pad1'>
18 <h1>
19 <a href="index.html">All files</a> Logger.ts
20 </h1>
21 <div class='clearfix'>
22 <div class='fl pad1y space-right2'>
23 <span class="strong">93.13% </span>
24 <span class="quiet">Statements</span>
25 <span class='fraction'>122/131</span>
26 </div>
27 <div class='fl pad1y space-right2'>
28 <span class="strong">83.02% </span>
29 <span class="quiet">Branches</span>
30 <span class='fraction'>44/53</span>
31 </div>
32 <div class='fl pad1y space-right2'>
33 <span class="strong">100% </span>
34 <span class="quiet">Functions</span>
35 <span class='fraction'>32/32</span>
36 </div>
37 <div class='fl pad1y space-right2'>
38 <span class="strong">92.97% </span>
39 <span class="quiet">Lines</span>
40 <span class='fraction'>119/128</span>
41 </div>
42 </div>
43 <p class="quiet">
44 Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
45 </p>
46 </div>
47 <div class='status-line high'></div>
48<pre><table class="coverage">
49<tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
50<a name='L2'></a><a href='#L2'>2</a>
51<a name='L3'></a><a href='#L3'>3</a>
52<a name='L4'></a><a href='#L4'>4</a>
53<a name='L5'></a><a href='#L5'>5</a>
54<a name='L6'></a><a href='#L6'>6</a>
55<a name='L7'></a><a href='#L7'>7</a>
56<a name='L8'></a><a href='#L8'>8</a>
57<a name='L9'></a><a href='#L9'>9</a>
58<a name='L10'></a><a href='#L10'>10</a>
59<a name='L11'></a><a href='#L11'>11</a>
60<a name='L12'></a><a href='#L12'>12</a>
61<a name='L13'></a><a href='#L13'>13</a>
62<a name='L14'></a><a href='#L14'>14</a>
63<a name='L15'></a><a href='#L15'>15</a>
64<a name='L16'></a><a href='#L16'>16</a>
65<a name='L17'></a><a href='#L17'>17</a>
66<a name='L18'></a><a href='#L18'>18</a>
67<a name='L19'></a><a href='#L19'>19</a>
68<a name='L20'></a><a href='#L20'>20</a>
69<a name='L21'></a><a href='#L21'>21</a>
70<a name='L22'></a><a href='#L22'>22</a>
71<a name='L23'></a><a href='#L23'>23</a>
72<a name='L24'></a><a href='#L24'>24</a>
73<a name='L25'></a><a href='#L25'>25</a>
74<a name='L26'></a><a href='#L26'>26</a>
75<a name='L27'></a><a href='#L27'>27</a>
76<a name='L28'></a><a href='#L28'>28</a>
77<a name='L29'></a><a href='#L29'>29</a>
78<a name='L30'></a><a href='#L30'>30</a>
79<a name='L31'></a><a href='#L31'>31</a>
80<a name='L32'></a><a href='#L32'>32</a>
81<a name='L33'></a><a href='#L33'>33</a>
82<a name='L34'></a><a href='#L34'>34</a>
83<a name='L35'></a><a href='#L35'>35</a>
84<a name='L36'></a><a href='#L36'>36</a>
85<a name='L37'></a><a href='#L37'>37</a>
86<a name='L38'></a><a href='#L38'>38</a>
87<a name='L39'></a><a href='#L39'>39</a>
88<a name='L40'></a><a href='#L40'>40</a>
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90<a name='L42'></a><a href='#L42'>42</a>
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92<a name='L44'></a><a href='#L44'>44</a>
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97<a name='L49'></a><a href='#L49'>49</a>
98<a name='L50'></a><a href='#L50'>50</a>
99<a name='L51'></a><a href='#L51'>51</a>
100<a name='L52'></a><a href='#L52'>52</a>
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701<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">// Copyright (C) 2017 Norman Breau
702&nbsp;
703// This program is free software: you can redistribute it and/or modify
704// it under the terms of the GNU General Public License as published by
705// the Free Software Foundation, either version 3 of the License, or
706// (at your option) any later version.
707&nbsp;
708// This program is distributed in the hope that it will be useful,
709// but WITHOUT ANY WARRANTY; without even the implied warranty of
710// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
711// GNU General Public License for more details.
712&nbsp;
713// You should have received a copy of the GNU General Public License
714// along with this program. If not, see &lt;http://www.gnu.org/licenses/&gt;.
715&nbsp;
716/* eslint-disable prefer-rest-params */
717&nbsp;
718import {EventEmitter} from 'events';
719import {LogSeverity} from './LogSeverity';
720import {LogEvent} from './LogEvent';
721import {ILogEvent} from './ILogEvent';
722import * as utils from 'util';
723import {getInstance} from './instance';
724import { IConfig } from './IConfig';
725import { Application } from './Application';
726import {Writable} from 'stream';
727&nbsp;
728export class Logger extends EventEmitter {
729 private name: string;
730 private logLevel: LogSeverity;
731 private useStdErrForErrors: boolean;
732 private _filters: Array&lt;RegExp&gt;;
733 private _logStream: Writable;
734 private _errorStream: Writable;
735&nbsp;
736 public constructor(name: string = '', logLevel?: LogSeverity, useStdErrForErrors: boolean = false) {
737 super();
738&nbsp;
739 this.name = name;
740&nbsp;
741 this._logStream = this._getDefaultLogStream();
742 this._errorStream = this._getDefaultErrorStream();
743&nbsp;
744 this.logLevel = LogSeverity.DEBUG |
745 LogSeverity.INFO |
746 LogSeverity.WARNING |
747 LogSeverity.ERROR |
748 LogSeverity.FATAL;
749
750 if (logLevel) {
751 this.logLevel = logLevel;
752 }
753&nbsp;
754 this._filters = this._getDefaultLogFilters();
755&nbsp;
756 this.useStdErrForErrors = useStdErrForErrors;
757 }
758&nbsp;
759 protected _getDefaultLogStream(): Writable {
760 return process.stdout;
761 }
762&nbsp;
763 protected _getDefaultErrorStream(): Writable {
764 return process.stderr;
765 }
766&nbsp;
767 public setLogStream(writable: Writable) {
768 this._logStream = writable;
769 }
770&nbsp;
771 public setErrorStream(writable: Writable) {
772 this._errorStream = writable;
773 }
774&nbsp;
775 public getLogStream(): Writable {
776 return this._logStream;
777 }
778&nbsp;
779 public getErrorStream(): Writable {
780 return this._errorStream;
781 }
782&nbsp;
783 public getName(): string {
784 return this.name;
785 }
786&nbsp;
787 public addFilter(reg: RegExp): void {
788 this._filters.push(reg);
789 }
790&nbsp;
791 public removeFilter(reg: RegExp): void {
792 let index: number = this._filters.indexOf(reg);
793 <span class="missing-if-branch" title="else path not taken" >E</span>if (index &gt; -1) {
794 this._filters.splice(index, 1);
795 }
796 }
797&nbsp;
798 public setFilters(filters: Array&lt;RegExp&gt;): void {
799 if (filters) {
800 this._filters = filters.slice();
801 }
802 else {
803 this._filters = [];
804 }
805 }
806&nbsp;
807 public getFilters(): Array&lt;RegExp&gt; {
808 return this._filters.slice();
809 }
810&nbsp;
811 public loadFilters(): void {
812 let app: Application = getInstance();
813 let config: IConfig = null;
814&nbsp;
815 <span class="missing-if-branch" title="else path not taken" >E</span>if (app) {
816 config = app.getConfig();
817 }
818&nbsp;
819 <span class="missing-if-branch" title="if path not taken" >I</span>if (!config) {
820<span class="cstat-no" title="statement not covered" > this.trace('No config for logger... Using default log filters');</span>
821<span class="cstat-no" title="statement not covered" > this.setFilters(this._getDefaultLogFilters());</span>
822<span class="cstat-no" title="statement not covered" > return;</span>
823 }
824&nbsp;
825 let filters: Array&lt;RegExp&gt; = null;
826 if (!config.log_filters || (config.log_filters &amp;&amp; config.log_filters.length === 0)) {
827 filters = this._getDefaultLogFilters();
828 }
829 else {
830 filters = [];
831 for (let i: number = 0; i &lt; config.log_filters.length; i++) {
832 let logFilter: string = config.log_filters[i];
833 filters.push(new RegExp(this._parseRegex(logFilter)));
834 }
835 }
836&nbsp;
837 this.setFilters(filters);
838 }
839&nbsp;
840 private _parseRegex(strReg: string): RegExp {
841 let malformError: Error = new Error('Malformed regex in log_filters');
842 <span class="missing-if-branch" title="if path not taken" >I</span>if (strReg[0] !== '/') {
843<span class="cstat-no" title="statement not covered" > throw malformError;</span>
844 }
845&nbsp;
846 let lastSlashIndex = strReg.lastIndexOf('/');
847 <span class="missing-if-branch" title="if path not taken" >I</span>if (lastSlashIndex === strReg.indexOf('/')) {
848<span class="cstat-no" title="statement not covered" > throw malformError;</span>
849 }
850&nbsp;
851 let reg: string = strReg.slice(1, lastSlashIndex);
852 let flags = strReg.slice(lastSlashIndex + 1);
853&nbsp;
854 return new RegExp(reg, flags);
855 }
856&nbsp;
857 protected _getDefaultLogFilters(): Array&lt;RegExp&gt; {
858 return [/TokenExpiredError/g];
859 }
860&nbsp;
861 public setLogLevel(severity: LogSeverity): void {
862 this.logLevel = severity;
863 }
864&nbsp;
865 public getLogLevel(): LogSeverity {
866 return this.logLevel;
867 }
868&nbsp;
869 protected _formatDate(now: Date): string {
870 return `${now.getFullYear()}/${now.getMonth() + 1}/${now.getDate()} - ${now.getHours()}:${now.getMinutes()}:${now.getSeconds()}`;
871 }
872&nbsp;
873 protected _formatString(messages: IArguments, severity: LogSeverity): string {
874 let sevText: string = '';
875 let str: string = '';
876&nbsp;
877 switch (severity) {
878 case LogSeverity.TRACE:
879 sevText = '[TRACE]';
880 break;
881 case LogSeverity.DEBUG:
882 sevText = '[DEBUG]';
883 break;
884 case LogSeverity.INFO:
885 sevText = '[INFO]';
886 break;
887 case LogSeverity.WARNING:
888 sevText = '[WARN]';
889 break;
890 case LogSeverity.ERROR:
891 sevText = '[ERROR]';
892 break;
893 case LogSeverity.FATAL:
894 sevText = '[FATAL]';
895 break;
896<span class="branch-6 cbranch-no" title="branch not covered" > case LogSeverity.DEPRECATE:</span>
897<span class="cstat-no" title="statement not covered" > sevText = '[DEPRECATE]';</span>
898<span class="cstat-no" title="statement not covered" > break;</span>
899 default:
900 this.warn('Unknown Severity value used.');
901 break;
902 }
903
904 for (let i: number = 0; i &lt; messages.length; i++) {
905 let msg: any = messages[i];
906&nbsp;
907 if (str.length !== 0) {
908 str += ' ';
909 }
910&nbsp;
911 if (typeof msg !== 'string') {
912 str += utils.inspect(msg);
913 }
914 else {
915 str += msg;
916 }
917&nbsp;
918 if (msg instanceof Error) {
919 str = msg.stack + '\n\n';
920 }
921 }
922&nbsp;
923 return `${sevText}[${this.name}][${this._formatDate(new Date())}] ${str}\n`;
924 }
925&nbsp;
926 protected _logMessages(messages: IArguments, severity: LogSeverity): void {
927 let msg: string = this._formatString(messages, severity);
928
929 this._logMessage(msg, severity);
930 }
931&nbsp;
932 protected _logMessage(msg: string, severity: LogSeverity): void {
933 <span class="missing-if-branch" title="else path not taken" >E</span>if (this._shouldLog(msg, severity)) {
934 if ((severity &amp; (LogSeverity.ERROR | LogSeverity.FATAL)) &amp;&amp; this.useStdErrForErrors) {
935 this.getErrorStream().write(msg);
936 }
937 else {
938 this.getLogStream().write(msg);
939 }
940 }
941 }
942&nbsp;
943 protected _shouldLog(msg: string, severity: LogSeverity): boolean {
944 if (severity === LogSeverity.TRACE) {
945 return true;
946 }
947&nbsp;
948 for (let i: number = 0; i &lt; this._filters.length; i++) {
949 let filter: RegExp = this._filters[i];
950 <span class="missing-if-branch" title="if path not taken" >I</span>if (filter.test(msg)) {
951<span class="cstat-no" title="statement not covered" > return false;</span>
952 }
953 }
954&nbsp;
955 return true;
956 }
957&nbsp;
958 protected log(messages: IArguments, severity: LogSeverity): void {
959 if (severity &amp; this.getLogLevel()) {
960 this._logMessages(messages, severity);
961 let logData: ILogEvent = {
962 severity : severity,
963 messages : messages
964 };
965 this.emit(LogEvent.LOG, logData);
966 }
967 }
968&nbsp;
969 public trace(message: any): void {
970 this.log(arguments, LogSeverity.TRACE);
971 }
972&nbsp;
973 public debug(message: any): void {
974 this.log(arguments, LogSeverity.DEBUG);
975 }
976&nbsp;
977 public info(message: any): void {
978 this.log(arguments, LogSeverity.INFO);
979 }
980&nbsp;
981 public warn(message: any): void {
982 this.log(arguments, LogSeverity.WARNING);
983 }
984&nbsp;
985 public error(message: any): void {
986 this.log(arguments, LogSeverity.ERROR);
987 }
988&nbsp;
989 public fatal(message: any): void {
990 this.log(arguments, LogSeverity.FATAL);
991 }
992&nbsp;
993 public deprecate(alternative?: string, methodOverride?: string): void {
994 let e: Error = new Error();
995 let args: any = [];
996
997 <span class="missing-if-branch" title="else path not taken" >E</span>if (!methodOverride) {
998 args.push(this._getDeprecatedMethodMessage(e));
999 }
1000 else {
1001<span class="cstat-no" title="statement not covered" > args.push(methodOverride);</span>
1002 }
1003&nbsp;
1004 if (alternative) {
1005 args.push(this._getDeprecatedAlternativeMessage(alternative));
1006 }
1007
1008 args.push('\n\n');
1009 args.push(e.stack);
1010 this.log(args, LogSeverity.DEPRECATE);
1011 }
1012
1013 private _getDeprecatedMethodMessage(e: Error): string {
1014 let stack = e.stack.split('\n')[2].replace(/^\s+at\s+(.+?)\s.+/g, '$1');
1015 let obj: string = 'Method';
1016 if (stack === "new") {
1017 stack = e.stack.split('\n')[2].replace(/^\s+at new\s+(.+?)\s.+/g, '$1');
1018 obj = 'Class';
1019 }
1020 return `${obj} ${stack} is deprecated.`
1021 }
1022&nbsp;
1023 private _getDeprecatedAlternativeMessage(alternative: string): string {
1024 return `Use ${alternative} instead.`;
1025 }
1026}
1027&nbsp;</pre></td></tr>
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