| Siobhan Tully | e18b344 | 2014-02-23 14:23:34 -0500 | [diff] [blame^] | 1 | /**
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| 2 | * Copyright 2013 Tim Down.
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | */
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| 16 |
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| 17 | if (!Array.prototype.shift) {
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| 18 | Array.prototype.shift = function() {
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| 19 | if (this.length > 0) {
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| 20 | var firstItem = this[0];
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| 21 | for (var i = 0, len = this.length - 1; i < len; i++) {
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| 22 | this[i] = this[i + 1];
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| 23 | }
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| 24 | this.length--;
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| 25 | return firstItem;
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| 26 | }
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| 27 | };
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| 28 | }
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| 29 |
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| 30 | var log4javascript;
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| 31 |
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| 32 | (function() {
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| 33 | var newLine = "\r\n";
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| 34 | function Log4JavaScript() {}
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| 35 | log4javascript = new Log4JavaScript();
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| 36 | log4javascript.version = "1.4.6";
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| 37 | log4javascript.edition = "log4javascript_lite";
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| 38 |
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| 39 | function getExceptionMessage(ex) {
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| 40 | if (ex.message) {
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| 41 | return ex.message;
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| 42 | } else if (ex.description) {
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| 43 | return ex.description;
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| 44 | } else {
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| 45 | return String(ex);
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| 46 | }
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| 47 | }
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| 48 |
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| 49 | // Gets the portion of the URL after the last slash
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| 50 | function getUrlFileName(url) {
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| 51 | var lastSlashIndex = Math.max(url.lastIndexOf("/"), url.lastIndexOf("\\"));
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| 52 | return url.substr(lastSlashIndex + 1);
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| 53 | }
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| 54 |
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| 55 | // Returns a nicely formatted representation of an error
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| 56 | function getExceptionStringRep(ex) {
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| 57 | if (ex) {
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| 58 | var exStr = "Exception: " + getExceptionMessage(ex);
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| 59 | try {
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| 60 | if (ex.lineNumber) {
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| 61 | exStr += " on line number " + ex.lineNumber;
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| 62 | }
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| 63 | if (ex.fileName) {
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| 64 | exStr += " in file " + getUrlFileName(ex.fileName);
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| 65 | }
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| 66 | } catch (localEx) {
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| 67 | }
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| 68 | if (showStackTraces && ex.stack) {
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| 69 | exStr += newLine + "Stack trace:" + newLine + ex.stack;
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| 70 | }
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| 71 | return exStr;
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| 72 | }
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| 73 | return null;
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| 74 | }
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| 75 |
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| 76 | function isError(err) {
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| 77 | return (err instanceof Error);
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| 78 | }
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| 79 |
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| 80 | function bool(obj) {
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| 81 | return Boolean(obj);
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| 82 | }
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| 83 |
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| 84 | var enabled = (typeof log4javascript_disabled != "undefined") &&
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| 85 | log4javascript_disabled ? false : true;
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| 86 |
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| 87 | log4javascript.setEnabled = function(enable) {
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| 88 | enabled = bool(enable);
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| 89 | };
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| 90 |
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| 91 | log4javascript.isEnabled = function() {
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| 92 | return enabled;
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| 93 | };
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| 94 |
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| 95 | var showStackTraces = false;
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| 96 |
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| 97 | log4javascript.setShowStackTraces = function(show) {
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| 98 | showStackTraces = bool(show);
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| 99 | };
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| 100 |
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| 101 | /* ---------------------------------------------------------------------- */
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| 102 | // Levels
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| 103 |
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| 104 | var Level = function(level, name) {
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| 105 | this.level = level;
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| 106 | this.name = name;
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| 107 | };
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| 108 |
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| 109 | Level.prototype = {
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| 110 | toString: function() {
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| 111 | return this.name;
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| 112 | },
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| 113 | equals: function(level) {
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| 114 | return this.level == level.level;
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| 115 | },
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| 116 | isGreaterOrEqual: function(level) {
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| 117 | return this.level >= level.level;
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| 118 | }
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| 119 | };
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| 120 |
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| 121 | Level.ALL = new Level(Number.MIN_VALUE, "ALL");
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| 122 | Level.TRACE = new Level(10000, "TRACE");
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| 123 | Level.DEBUG = new Level(20000, "DEBUG");
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| 124 | Level.INFO = new Level(30000, "INFO");
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| 125 | Level.WARN = new Level(40000, "WARN");
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| 126 | Level.ERROR = new Level(50000, "ERROR");
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| 127 | Level.FATAL = new Level(60000, "FATAL");
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| 128 | Level.OFF = new Level(Number.MAX_VALUE, "OFF");
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| 129 |
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| 130 | log4javascript.Level = Level;
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| 131 |
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| 132 | /* ---------------------------------------------------------------------- */
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| 133 | // Appenders
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| 134 |
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| 135 | function Appender() {
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| 136 | var getConsoleHtmlLines = function() {
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| 137 | return [
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| 138 | '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">',
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| 139 | '<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">',
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| 140 | ' <head>',
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| 141 | ' <title>log4javascript</title>',
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| 142 | ' <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />',
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| 143 | ' <!-- Make IE8 behave like IE7, having gone to all the trouble of making IE work -->',
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| 144 | ' <meta http-equiv="X-UA-Compatible" content="IE=7" />',
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| 145 | ' <script type="text/javascript">',
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| 146 | ' //<![CDATA[',
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| 147 | ' var loggingEnabled = true;',
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| 148 | ' var messagesBeforeDocLoaded = [];',
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| 149 | '',
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| 150 | ' function toggleLoggingEnabled() {',
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| 151 | ' setLoggingEnabled($("enableLogging").checked);',
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| 152 | ' }',
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| 153 | '',
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| 154 | ' function setLoggingEnabled(enable) {',
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| 155 | ' loggingEnabled = enable;',
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| 156 | ' }',
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| 157 | '',
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| 158 | ' function scrollToLatestEntry() {',
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| 159 | ' var l = getLogContainer();',
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| 160 | ' if (typeof l.scrollTop != "undefined") {',
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| 161 | ' var latestLogEntry = l.lastChild;',
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| 162 | ' if (latestLogEntry) {',
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| 163 | ' l.scrollTop = l.scrollHeight;',
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| 164 | ' }',
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| 165 | ' }',
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| 166 | ' }',
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| 167 | '',
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| 168 | ' function log(logLevel, formattedMessage) {',
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| 169 | ' if (loggingEnabled) {',
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| 170 | ' if (loaded) {',
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| 171 | ' doLog(logLevel, formattedMessage);',
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| 172 | ' } else {',
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| 173 | ' messagesBeforeDocLoaded.push([logLevel, formattedMessage]);',
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| 174 | ' }',
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| 175 | ' }',
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| 176 | ' }',
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| 177 | '',
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| 178 | ' function doLog(logLevel, formattedMessage) {',
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| 179 | ' var logEntry = document.createElement("div");',
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| 180 | ' logEntry.appendChild(document.createTextNode(formattedMessage));',
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| 181 | ' logEntry.className = "logentry " + logLevel.name;',
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| 182 | ' getLogContainer().appendChild(logEntry);',
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| 183 | ' scrollToLatestEntry();',
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| 184 | ' }',
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| 185 | '',
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| 186 | ' function mainPageReloaded() {',
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| 187 | ' var separator = document.createElement("div");',
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| 188 | ' separator.className = "separator";',
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| 189 | ' separator.innerHTML = " ";',
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| 190 | ' getLogContainer().appendChild(separator);',
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| 191 | ' }',
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| 192 | '',
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| 193 | ' var loaded = false;',
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| 194 | ' var logLevels = ["DEBUG", "INFO", "WARN", "ERROR", "FATAL"];',
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| 195 | '',
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| 196 | ' window.onload = function() {',
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| 197 | ' setLogContainerHeight();',
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| 198 | ' toggleLoggingEnabled();',
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| 199 | ' for (var i = 0; i < messagesBeforeDocLoaded.length; i++) {',
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| 200 | ' doLog(messagesBeforeDocLoaded[i][0], messagesBeforeDocLoaded[i][1]);',
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| 201 | ' }',
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| 202 | ' messagesBeforeDocLoaded = [];',
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| 203 | ' loaded = true;',
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| 204 | '',
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| 205 | ' // Workaround to make sure log div starts at the correct size',
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| 206 | ' setTimeout(setLogContainerHeight, 20);',
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| 207 | ' };',
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| 208 | '',
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| 209 | ' function getLogContainer() {',
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| 210 | ' return $("log");',
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| 211 | ' }',
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| 212 | '',
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| 213 | ' function clearLog() {',
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| 214 | ' getLogContainer().innerHTML = "";',
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| 215 | ' }',
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| 216 | '',
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| 217 | ' /* ------------------------------------------------------------------------- */',
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| 218 | '',
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| 219 | ' // Other utility functions',
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| 220 | '',
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| 221 | ' // Syntax borrowed from Prototype library',
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| 222 | ' function $(id) {',
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| 223 | ' return document.getElementById(id);',
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| 224 | ' }',
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| 225 | '',
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| 226 | ' function getWindowHeight() {',
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| 227 | ' if (window.innerHeight) {',
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| 228 | ' return window.innerHeight;',
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| 229 | ' } else if (document.documentElement && document.documentElement.clientHeight) {',
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| 230 | ' return document.documentElement.clientHeight;',
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| 231 | ' } else if (document.body) {',
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| 232 | ' return document.body.clientHeight;',
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| 233 | ' }',
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| 234 | ' return 0;',
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| 235 | ' }',
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| 236 | '',
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| 237 | ' function getChromeHeight() {',
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| 238 | ' return $("toolbar").offsetHeight;',
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| 239 | ' }',
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| 240 | '',
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| 241 | ' function setLogContainerHeight() {',
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| 242 | ' var windowHeight = getWindowHeight();',
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| 243 | ' $("body").style.height = getWindowHeight() + "px";',
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| 244 | ' getLogContainer().style.height = "" +',
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| 245 | ' Math.max(0, windowHeight - getChromeHeight()) + "px";',
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| 246 | ' }',
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| 247 | '',
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| 248 | ' window.onresize = function() {',
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| 249 | ' setLogContainerHeight();',
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| 250 | ' };',
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| 251 | '',
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| 252 | ' //]]>',
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| 253 | ' </script>',
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| 254 | ' <style type="text/css">',
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| 255 | ' body {',
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| 256 | ' background-color: white;',
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| 257 | ' color: black;',
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| 258 | ' padding: 0;',
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| 259 | ' margin: 0;',
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| 260 | ' font-family: tahoma, verdana, arial, helvetica, sans-serif;',
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| 261 | ' overflow: hidden;',
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| 262 | ' }',
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| 263 | ' ',
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| 264 | ' div#toolbar {',
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| 265 | ' border-top: solid #ffffff 1px;',
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| 266 | ' border-bottom: solid #aca899 1px;',
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| 267 | ' background-color: #f1efe7;',
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| 268 | ' padding: 3px 5px;',
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| 269 | ' font-size: 68.75%;',
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| 270 | ' }',
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| 271 | '',
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| 272 | ' div#toolbar input.button {',
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| 273 | ' padding: 0 5px;',
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| 274 | ' font-size: 100%;',
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| 275 | ' }',
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| 276 | '',
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| 277 | ' div#log {',
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| 278 | ' font-family: Courier New, Courier;',
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| 279 | ' font-size: 75%;',
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| 280 | ' width: 100%;',
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| 281 | ' overflow: auto;',
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| 282 | ' clear: both;',
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| 283 | ' }',
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| 284 | '',
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| 285 | ' *.logentry {',
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| 286 | ' overflow: visible;',
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| 287 | ' white-space: pre;',
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| 288 | ' }',
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| 289 | '',
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| 290 | ' *.TRACE {',
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| 291 | ' color: #666666;',
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| 292 | ' }',
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| 293 | '',
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| 294 | ' *.DEBUG {',
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| 295 | ' color: green;',
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| 296 | ' }',
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| 297 | '',
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| 298 | ' *.INFO {',
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| 299 | ' color: #000099;',
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| 300 | ' }',
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| 301 | '',
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| 302 | ' *.WARN {',
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| 303 | ' color: #999900;',
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| 304 | ' }',
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| 305 | '',
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| 306 | ' *.ERROR {',
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| 307 | ' color: red;',
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| 308 | ' }',
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| 309 | '',
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| 310 | ' *.FATAL {',
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| 311 | ' color: #660066;',
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| 312 | ' }',
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| 313 | '',
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| 314 | ' div#log div.separator {',
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| 315 | ' background-color: #cccccc;',
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| 316 | ' margin: 5px 0;',
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| 317 | ' line-height: 1px;',
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| 318 | ' }',
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| 319 | ' </style>',
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| 320 | ' </head>',
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| 321 | '',
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| 322 | ' <body id="body">',
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| 323 | ' <div id="toolbar">',
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| 324 | ' Options:',
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| 325 | ' <input type="checkbox" id="enableLogging" onclick="toggleLoggingEnabled()" class="stateful" checked="checked" title="Enable/disable logging" /><label for="enableLogging" id="enableLoggingLabel">Enable logging</label>',
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| 326 | ' <input type="button" id="clearButton" value="Clear" onclick="clearLog()" class="stateful button" title="Clear all log messages" />',
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| 327 | ' <input type="button" id="closeButton" value="Close" onclick="window.close()" class="stateful button" title="Close the window" />',
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| 328 | ' </div>',
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| 329 | ' <div id="log" class="TRACE DEBUG INFO WARN ERROR FATAL"></div>',
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| 330 | ' </body>',
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| 331 | '</html>'
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| 332 | ];
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| 333 | };
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| 334 |
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| 335 | var popUp = null;
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| 336 | var popUpsBlocked = false;
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| 337 | var popUpClosed = false;
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| 338 | var popUpLoaded = false;
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| 339 | var complainAboutPopUpBlocking = true;
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| 340 | var initialized = false;
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| 341 | var isSupported = true;
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| 342 | var width = 600;
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| 343 | var height = 400;
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| 344 | var focusPopUp = false;
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| 345 | var queuedLoggingEvents = new Array();
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| 346 |
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| 347 | function isLoaded(win) {
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| 348 | try {
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| 349 | return bool(win.loaded);
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| 350 | } catch (ex) {
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| 351 | return false;
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| 352 | }
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| 353 | }
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| 354 |
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| 355 | function finalInit() {
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| 356 | popUpLoaded = true;
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| 357 | appendQueuedLoggingEvents();
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| 358 | }
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| 359 |
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| 360 | function writeHtml(doc) {
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| 361 | var lines = getConsoleHtmlLines();
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| 362 | doc.open();
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| 363 | for (var i = 0, len = lines.length; i < len; i++) {
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| 364 | doc.writeln(lines[i]);
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| 365 | }
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| 366 | doc.close();
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| 367 | }
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| 368 |
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| 369 | function pollConsoleWindow() {
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| 370 | function pollConsoleWindowLoaded() {
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| 371 | if (popUpLoaded) {
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| 372 | clearInterval(poll);
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| 373 | } else if (bool(popUp) && isLoaded(popUp)) {
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| 374 | clearInterval(poll);
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| 375 | finalInit();
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| 376 | }
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| 377 | }
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| 378 |
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| 379 | // Poll the pop-up since the onload event is not reliable
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| 380 | var poll = setInterval(pollConsoleWindowLoaded, 100);
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| 381 | }
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| 382 |
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| 383 | function init() {
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| 384 | var windowProperties = "width=" + width + ",height=" + height + ",status,resizable";
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| 385 | var windowName = "log4javascriptLitePopUp" + location.host.replace(/[^a-z0-9]/gi, "_");
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| 386 |
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| 387 | popUp = window.open("", windowName, windowProperties);
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| 388 | popUpClosed = false;
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| 389 | if (popUp) {
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| 390 | if (isLoaded(popUp)) {
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| 391 | popUp.mainPageReloaded();
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| 392 | finalInit();
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| 393 | } else {
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| 394 | writeHtml(popUp.document);
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| 395 |
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| 396 | // Check if the pop-up window object is available
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| 397 | if (isLoaded(popUp)) {
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| 398 | finalInit();
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| 399 | } else {
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| 400 | pollConsoleWindow();
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| 401 | }
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| 402 | }
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| 403 | } else {
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| 404 | isSupported = false;
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| 405 | if (complainAboutPopUpBlocking) {
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| 406 | alert("log4javascript: pop-up windows appear to be blocked. Please unblock them to use pop-up logging.");
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| 407 | }
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| 408 | }
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| 409 | initialized = true;
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| 410 | }
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| 411 |
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| 412 | function safeToAppend() {
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| 413 | if (!popUpsBlocked && !popUpClosed) {
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| 414 | if (popUp.closed) {
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| 415 | popUpClosed = true;
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| 416 | return false;
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| 417 | }
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| 418 | if (!popUpLoaded && popUp.loaded) {
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| 419 | popUpLoaded = true;
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| 420 | }
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| 421 | }
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| 422 | return !popUpsBlocked && popUpLoaded && !popUpClosed;
|
| 423 | }
|
| 424 |
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| 425 | function padWithZeroes(num, len) {
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| 426 | var str = "" + num;
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| 427 | while (str.length < len) {
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| 428 | str = "0" + str;
|
| 429 | }
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| 430 | return str;
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| 431 | }
|
| 432 |
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| 433 | function padWithSpaces(str, len) {
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| 434 | while (str.length < len) {
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| 435 | str += " ";
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| 436 | }
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| 437 | return str;
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| 438 | }
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| 439 |
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| 440 | this.append = function(loggingEvent) {
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| 441 | if (!initialized) {
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| 442 | init();
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| 443 | }
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| 444 | queuedLoggingEvents.push(loggingEvent);
|
| 445 | if (safeToAppend()) {
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| 446 | appendQueuedLoggingEvents();
|
| 447 | }
|
| 448 | };
|
| 449 |
|
| 450 | function appendQueuedLoggingEvents() {
|
| 451 | if (safeToAppend()) {
|
| 452 | while (queuedLoggingEvents.length > 0) {
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| 453 | var currentLoggingEvent = queuedLoggingEvents.shift();
|
| 454 | var date = currentLoggingEvent.timeStamp;
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| 455 | var formattedDate = padWithZeroes(date.getHours(), 2) + ":" +
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| 456 | padWithZeroes(date.getMinutes(), 2) + ":" + padWithZeroes(date.getSeconds(), 2);
|
| 457 | var formattedMessage = formattedDate + " " + padWithSpaces(currentLoggingEvent.level.name, 5) +
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| 458 | " - " + currentLoggingEvent.getCombinedMessages();
|
| 459 | var throwableStringRep = currentLoggingEvent.getThrowableStrRep();
|
| 460 | if (throwableStringRep) {
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| 461 | formattedMessage += newLine + throwableStringRep;
|
| 462 | }
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| 463 | popUp.log(currentLoggingEvent.level, formattedMessage);
|
| 464 | }
|
| 465 | if (focusPopUp) {
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| 466 | popUp.focus();
|
| 467 | }
|
| 468 | }
|
| 469 | }
|
| 470 | }
|
| 471 |
|
| 472 | log4javascript.Appender = Appender;
|
| 473 |
|
| 474 | /* ---------------------------------------------------------------------- */
|
| 475 | // Loggers
|
| 476 |
|
| 477 | function Logger() {
|
| 478 | var appender = new Appender();
|
| 479 | var loggerLevel = Level.ALL;
|
| 480 |
|
| 481 | this.log = function(level, params) {
|
| 482 | if (enabled && level.isGreaterOrEqual(this.getLevel())) {
|
| 483 | // Check whether last param is an exception
|
| 484 | var exception;
|
| 485 | var finalParamIndex = params.length - 1;
|
| 486 | var lastParam = params[params.length - 1];
|
| 487 | if (params.length > 1 && isError(lastParam)) {
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| 488 | exception = lastParam;
|
| 489 | finalParamIndex--;
|
| 490 | }
|
| 491 |
|
| 492 | // Construct genuine array for the params
|
| 493 | var messages = [];
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| 494 | for (var i = 0; i <= finalParamIndex; i++) {
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| 495 | messages[i] = params[i];
|
| 496 | }
|
| 497 |
|
| 498 | var loggingEvent = new LoggingEvent(
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| 499 | this, new Date(), level, messages, exception);
|
| 500 |
|
| 501 | appender.append(loggingEvent);
|
| 502 | }
|
| 503 | };
|
| 504 |
|
| 505 | this.setLevel = function(level) {
|
| 506 | loggerLevel = level;
|
| 507 | };
|
| 508 |
|
| 509 | this.getLevel = function() {
|
| 510 | return loggerLevel;
|
| 511 | };
|
| 512 | }
|
| 513 |
|
| 514 | Logger.prototype = {
|
| 515 | trace: function() {
|
| 516 | this.log(Level.TRACE, arguments);
|
| 517 | },
|
| 518 |
|
| 519 | debug: function() {
|
| 520 | this.log(Level.DEBUG, arguments);
|
| 521 | },
|
| 522 |
|
| 523 | info: function() {
|
| 524 | this.log(Level.INFO, arguments);
|
| 525 | },
|
| 526 |
|
| 527 | warn: function() {
|
| 528 | this.log(Level.WARN, arguments);
|
| 529 | },
|
| 530 |
|
| 531 | error: function() {
|
| 532 | this.log(Level.ERROR, arguments);
|
| 533 | },
|
| 534 |
|
| 535 | fatal: function() {
|
| 536 | this.log(Level.FATAL, arguments);
|
| 537 | },
|
| 538 |
|
| 539 | isEnabledFor: function(level) {
|
| 540 | return level.isGreaterOrEqual(this.getLevel());
|
| 541 | },
|
| 542 |
|
| 543 | isTraceEnabled: function() {
|
| 544 | return this.isEnabledFor(Level.TRACE);
|
| 545 | },
|
| 546 |
|
| 547 | isDebugEnabled: function() {
|
| 548 | return this.isEnabledFor(Level.DEBUG);
|
| 549 | },
|
| 550 |
|
| 551 | isInfoEnabled: function() {
|
| 552 | return this.isEnabledFor(Level.INFO);
|
| 553 | },
|
| 554 |
|
| 555 | isWarnEnabled: function() {
|
| 556 | return this.isEnabledFor(Level.WARN);
|
| 557 | },
|
| 558 |
|
| 559 | isErrorEnabled: function() {
|
| 560 | return this.isEnabledFor(Level.ERROR);
|
| 561 | },
|
| 562 |
|
| 563 | isFatalEnabled: function() {
|
| 564 | return this.isEnabledFor(Level.FATAL);
|
| 565 | }
|
| 566 | };
|
| 567 |
|
| 568 | /* ---------------------------------------------------------------------- */
|
| 569 | // Logger access methods
|
| 570 |
|
| 571 | var defaultLogger = null;
|
| 572 | log4javascript.getDefaultLogger = function() {
|
| 573 | if (!defaultLogger) {
|
| 574 | defaultLogger = new Logger();
|
| 575 | }
|
| 576 | return defaultLogger;
|
| 577 | };
|
| 578 |
|
| 579 | log4javascript.getLogger = log4javascript.getDefaultLogger;
|
| 580 |
|
| 581 | var nullLogger = null;
|
| 582 | log4javascript.getNullLogger = function() {
|
| 583 | if (!nullLogger) {
|
| 584 | nullLogger = new Logger();
|
| 585 | nullLogger.setLevel(Level.OFF);
|
| 586 | }
|
| 587 | return nullLogger;
|
| 588 | };
|
| 589 |
|
| 590 | /* ---------------------------------------------------------------------- */
|
| 591 | // Logging events
|
| 592 |
|
| 593 | var LoggingEvent = function(logger, timeStamp, level, messages,
|
| 594 | exception) {
|
| 595 | this.logger = logger;
|
| 596 | this.timeStamp = timeStamp;
|
| 597 | this.level = level;
|
| 598 | this.messages = messages;
|
| 599 | this.exception = exception;
|
| 600 | };
|
| 601 |
|
| 602 | LoggingEvent.prototype = {
|
| 603 | getThrowableStrRep: function() {
|
| 604 | return this.exception ?
|
| 605 | getExceptionStringRep(this.exception) : "";
|
| 606 | },
|
| 607 |
|
| 608 | getCombinedMessages: function() {
|
| 609 | return (this.messages.length === 1) ? this.messages[0] :
|
| 610 | this.messages.join(newLine);
|
| 611 | }
|
| 612 | };
|
| 613 |
|
| 614 | log4javascript.LoggingEvent = LoggingEvent;
|
| 615 |
|
| 616 | // Ensure that the log4javascript object is available in the window. This
|
| 617 | // is necessary for log4javascript to be available in IE if loaded using
|
| 618 | // Dojo's module system
|
| 619 | window.log4javascript = log4javascript;
|
| 620 | })(); |