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1/***
2
3MochiKit.Logging 1.5
4
5See <http://mochikit.com/> for documentation, downloads, license, etc.
6
7(c) 2005 Bob Ippolito. All rights Reserved.
8
9***/
10
11MochiKit.Base._module('Logging', '1.5', ['Base']);
12
13 /** @id MochiKit.Logging.LogMessage */
14MochiKit.Logging.LogMessage = function (num, level, info) {
15 this.num = num;
16 this.level = level;
17 this.info = info;
18 this.timestamp = new Date();
19};
20
21MochiKit.Logging.LogMessage.prototype = {
22 /** @id MochiKit.Logging.LogMessage.prototype.repr */
23 repr: function () {
24 var m = MochiKit.Base;
25 return 'LogMessage(' +
26 m.map(
27 m.repr,
28 [this.num, this.level, this.info]
29 ).join(', ') + ')';
30 },
31 /** @id MochiKit.Logging.LogMessage.prototype.toString */
32 toString: MochiKit.Base.forwardCall("repr")
33};
34
35MochiKit.Base.update(MochiKit.Logging, {
36 /** @id MochiKit.Logging.logLevelAtLeast */
37 logLevelAtLeast: function (minLevel) {
38 var self = MochiKit.Logging;
39 if (typeof(minLevel) == 'string') {
40 minLevel = self.LogLevel[minLevel];
41 }
42 return function (msg) {
43 var msgLevel = msg.level;
44 if (typeof(msgLevel) == 'string') {
45 msgLevel = self.LogLevel[msgLevel];
46 }
47 return msgLevel >= minLevel;
48 };
49 },
50
51 /** @id MochiKit.Logging.isLogMessage */
52 isLogMessage: function (/* ... */) {
53 var LogMessage = MochiKit.Logging.LogMessage;
54 for (var i = 0; i < arguments.length; i++) {
55 if (!(arguments[i] instanceof LogMessage)) {
56 return false;
57 }
58 }
59 return true;
60 },
61
62 /** @id MochiKit.Logging.compareLogMessage */
63 compareLogMessage: function (a, b) {
64 return MochiKit.Base.compare([a.level, a.info], [b.level, b.info]);
65 },
66
67 /** @id MochiKit.Logging.alertListener */
68 alertListener: function (msg) {
69 alert(
70 "num: " + msg.num +
71 "\nlevel: " + msg.level +
72 "\ninfo: " + msg.info.join(" ")
73 );
74 }
75
76});
77
78/** @id MochiKit.Logging.Logger */
79MochiKit.Logging.Logger = function (/* optional */maxSize) {
80 this.counter = 0;
81 if (typeof(maxSize) == 'undefined' || maxSize === null) {
82 maxSize = -1;
83 }
84 this.maxSize = maxSize;
85 this._messages = [];
86 this.listeners = {};
87 this.useNativeConsole = false;
88};
89
90MochiKit.Logging.Logger.prototype = {
91 /** @id MochiKit.Logging.Logger.prototype.clear */
92 clear: function () {
93 this._messages.splice(0, this._messages.length);
94 },
95
96 /** @id MochiKit.Logging.Logger.prototype.logToConsole */
97 logToConsole: function (msg) {
98 if (typeof(window) != "undefined" && window.console
99 && window.console.log) {
100 // Safari and FireBug 0.4
101 // Percent replacement is a workaround for cute Safari crashing bug
102 window.console.log(msg.replace(/%/g, '\uFF05'));
103 } else if (typeof(opera) != "undefined" && opera.postError) {
104 // Opera
105 opera.postError(msg);
106 } else if (typeof(Debug) != "undefined" && Debug.writeln) {
107 // IE Web Development Helper (?)
108 // http://www.nikhilk.net/Entry.aspx?id=93
109 Debug.writeln(msg);
110 } else if (typeof(debug) != "undefined" && debug.trace) {
111 // Atlas framework (?)
112 // http://www.nikhilk.net/Entry.aspx?id=93
113 debug.trace(msg);
114 }
115 },
116
117 /** @id MochiKit.Logging.Logger.prototype.dispatchListeners */
118 dispatchListeners: function (msg) {
119 for (var k in this.listeners) {
120 var pair = this.listeners[k];
121 if (pair.ident != k || (pair[0] && !pair[0](msg))) {
122 continue;
123 }
124 pair[1](msg);
125 }
126 },
127
128 /** @id MochiKit.Logging.Logger.prototype.addListener */
129 addListener: function (ident, filter, listener) {
130 if (typeof(filter) == 'string') {
131 filter = MochiKit.Logging.logLevelAtLeast(filter);
132 }
133 var entry = [filter, listener];
134 entry.ident = ident;
135 this.listeners[ident] = entry;
136 },
137
138 /** @id MochiKit.Logging.Logger.prototype.removeListener */
139 removeListener: function (ident) {
140 delete this.listeners[ident];
141 },
142
143 /** @id MochiKit.Logging.Logger.prototype.baseLog */
144 baseLog: function (level, message/*, ...*/) {
145 if (typeof(level) == "number") {
146 if (level >= MochiKit.Logging.LogLevel.FATAL) {
147 level = 'FATAL';
148 } else if (level >= MochiKit.Logging.LogLevel.ERROR) {
149 level = 'ERROR';
150 } else if (level >= MochiKit.Logging.LogLevel.WARNING) {
151 level = 'WARNING';
152 } else if (level >= MochiKit.Logging.LogLevel.INFO) {
153 level = 'INFO';
154 } else {
155 level = 'DEBUG';
156 }
157 }
158 var msg = new MochiKit.Logging.LogMessage(
159 this.counter,
160 level,
161 MochiKit.Base.extend(null, arguments, 1)
162 );
163 this._messages.push(msg);
164 this.dispatchListeners(msg);
165 if (this.useNativeConsole) {
166 this.logToConsole(msg.level + ": " + msg.info.join(" "));
167 }
168 this.counter += 1;
169 while (this.maxSize >= 0 && this._messages.length > this.maxSize) {
170 this._messages.shift();
171 }
172 },
173
174 /** @id MochiKit.Logging.Logger.prototype.getMessages */
175 getMessages: function (howMany) {
176 var firstMsg = 0;
177 if (!(typeof(howMany) == 'undefined' || howMany === null)) {
178 firstMsg = Math.max(0, this._messages.length - howMany);
179 }
180 return this._messages.slice(firstMsg);
181 },
182
183 /** @id MochiKit.Logging.Logger.prototype.getMessageText */
184 getMessageText: function (howMany) {
185 if (typeof(howMany) == 'undefined' || howMany === null) {
186 howMany = 30;
187 }
188 var messages = this.getMessages(howMany);
189 if (messages.length) {
190 var lst = map(function (m) {
191 return '\n [' + m.num + '] ' + m.level + ': ' + m.info.join(' ');
192 }, messages);
193 lst.unshift('LAST ' + messages.length + ' MESSAGES:');
194 return lst.join('');
195 }
196 return '';
197 },
198
199 /** @id MochiKit.Logging.Logger.prototype.debuggingBookmarklet */
200 debuggingBookmarklet: function (inline) {
201 if (typeof(MochiKit.LoggingPane) == "undefined") {
202 alert(this.getMessageText());
203 } else {
204 MochiKit.LoggingPane.createLoggingPane(inline || false);
205 }
206 }
207};
208
209MochiKit.Logging.__new__ = function () {
210 this.LogLevel = {
211 ERROR: 40,
212 FATAL: 50,
213 WARNING: 30,
214 INFO: 20,
215 DEBUG: 10
216 };
217
218 var m = MochiKit.Base;
219 m.registerComparator("LogMessage",
220 this.isLogMessage,
221 this.compareLogMessage
222 );
223
224 var partial = m.partial;
225
226 var Logger = this.Logger;
227 var baseLog = Logger.prototype.baseLog;
228 m.update(this.Logger.prototype, {
229 debug: partial(baseLog, 'DEBUG'),
230 log: partial(baseLog, 'INFO'),
231 error: partial(baseLog, 'ERROR'),
232 fatal: partial(baseLog, 'FATAL'),
233 warning: partial(baseLog, 'WARNING')
234 });
235
236 // indirectly find logger so it can be replaced
237 var self = this;
238 var connectLog = function (name) {
239 return function () {
240 self.logger[name].apply(self.logger, arguments);
241 };
242 };
243
244 /** @id MochiKit.Logging.log */
245 this.log = connectLog('log');
246 /** @id MochiKit.Logging.logError */
247 this.logError = connectLog('error');
248 /** @id MochiKit.Logging.logDebug */
249 this.logDebug = connectLog('debug');
250 /** @id MochiKit.Logging.logFatal */
251 this.logFatal = connectLog('fatal');
252 /** @id MochiKit.Logging.logWarning */
253 this.logWarning = connectLog('warning');
254 this.logger = new Logger();
255 this.logger.useNativeConsole = true;
256
257 m.nameFunctions(this);
258};
259
260MochiKit.Logging.__new__();
261
262MochiKit.Base._exportSymbols(this, MochiKit.Logging);