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- //
- // BEGIN FLOCK GPL
- //
- // Copyright Flock Inc. 2005-2007
- // http://flock.com
- //
- // This file may be used under the terms of of the
- // GNU General Public License Version 2 or later (the "GPL"),
- // http://www.gnu.org/licenses/gpl.html
- //
- // Software distributed under the License is distributed on an "AS IS" basis,
- // WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- // for the specific language governing rights and limitations under the
- // License.
- //
- // END FLOCK GPL
- //
-
- const CLASS_ID = Components.ID("{E8C889A6-F832-4B09-A216-66A7E6178896}");
- const CLASS_NAME = "Flock Logging Service";
- const CONTRACT_ID = "@flock.com/logging-service;1";
-
- const flockILoggingService = Components.interfaces.flockILoggingService;
-
- function flockLoggingService()
- {
- this.setLevel(flockILoggingService.LEVEL_ALL);
-
- this._observers = new Array();
-
- this._enabled = true;
-
- var catmgr = Components.classes["@mozilla.org/categorymanager;1"].getService(Components.interfaces.nsICategoryManager);
- var enum = catmgr.enumerateCategory("flockILoggingObserver");
- while(enum.hasMoreElements()) {
- try {
- var obj = enum.getNext();
- var supportsString = obj.QueryInterface(Components.interfaces.nsISupportsCString);
- var shortName = supportsString.toString();
- var cid = catmgr.getCategoryEntry("flockILoggingObserver", shortName);
- var svc = Components.classes[cid].getService(Components.interfaces.flockILoggingObserver);
- this.addObserver(svc);
- } catch(e) {}
- }
-
- var obs = Components.classes["@mozilla.org/observer-service;1"].getService(Components.interfaces.nsIObserverService);
- obs.addObserver(this, "profile-after-change", false);
- }
-
- flockLoggingService.prototype = {
-
- _observers: null,
- _level: null,
- _enabled: null,
-
- log: function(aLevel, aContext, aMessage)
- {
- if (this._enabled) {
- if (aLevel >= this._level) {
- var date = new Date();
- for(var i = 0; i < this._observers.length; i++) {
- this._observers[i].emit(date.getTime(), aLevel, aContext, aMessage);
- }
- }
- }
- },
-
- setLevel: function(aLevel) {
- this._level = aLevel;
- },
-
- addObserver: function(aObserver)
- {
- if (aObserver == null) {
- throw Components.Exception("Observer is null!!");
- }
- this._observers.push(aObserver);
- },
-
- removeObserver: function(aObserver)
- {
- for(var i = 0; i < this._observers.length; i++) {
- if(aObserver == this._observers[i]) {
- this._observers.splice(i,1);
- break;
- }
- }
- },
-
- // nsIObserver
- observe: function(subject, topic, state)
- {
- switch (topic) {
- case "profile-after-change":
- var prefService = Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch2);
- // watch prefs for changes
- prefService.addObserver("flock.service.logger.enabled", this, false);
- prefService.addObserver("flock.service.logger.level", this, false);
- // init with current prefs
- this.observe(null, "nsPref:changed", null);
- break;
- case "nsPref:changed":
- var prefService = Components.classes["@mozilla.org/preferences-service;1"].getService(Components.interfaces.nsIPrefBranch);
- if (prefService.getPrefType("flock.service.logger.enabled")) {
- this._enabled = prefService.getBoolPref("flock.service.logger.enabled");
- } else {
- this._enabled = true;
- }
- if (prefService.getPrefType("flock.service.logger.level")) {
- this.setLevel(prefService.getIntPref("flock.service.logger.level"));
- } else {
- this.setLevel(flockILoggingService.LEVEL_WARN);
- }
- break;
- }
- },
-
- // nsIClassInfo
- getInterfaces: function(aCount)
- {
- var interfaces = [Components.interfaces.flockILoggingService, Components.interfaces.nsIClassInfo, Components.interfaces.nsIObserver];
- aCount.value = interfaces.length;
- return interfaces;
- },
-
- // nsIClassInfo
- getHelperForLanguage: function(aLanguage)
- {
- return null;
- },
-
- // nsIClassInfo
- contractID: CONTRACT_ID,
-
- // nsIClassInfo
- classDescription: CLASS_NAME,
-
- // nsIClassInfo
- classID: CLASS_ID,
-
- // nsIClassInfo
- implementationLanguage: Components.interfaces.nsIProgrammingLanguage.JAVASCRIPT,
-
- // nsIClassInfo
- flags: Components.interfaces.nsIClassInfo.SINGLETON,
-
- // nsISupports
- QueryInterface: function(aIID)
- {
- if (!aIID.equals(Components.interfaces.nsISupports) && !aIID.equals(Components.interfaces.flockILoggingService) && !aIID.equals(Components.interfaces.nsIClassInfo) && !aIID.equals(Components.interfaces.nsIObserver))
- throw Components.results.NS_ERROR_NO_INTERFACE;
- return this;
- }
-
- };
-
- /******************************************************************************
- * XPCOM Functions for construction and registration
- ******************************************************************************/
- var Module = {
- _firstTime: true,
- registerSelf: function(aCompMgr, aFileSpec, aLocation, aType)
- {
- if (this._firstTime) {
- this._firstTime = false;
- throw Components.results.NS_ERROR_FACTORY_REGISTER_AGAIN;
- }
- aCompMgr = aCompMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
- aCompMgr.registerFactoryLocation(CLASS_ID, CLASS_NAME, CONTRACT_ID, aFileSpec, aLocation, aType);
-
- // Make the Logging Service a startup observer
- var categoryManager = Components.classes["@mozilla.org/categorymanager;1"]
- .getService(Components.interfaces.nsICategoryManager);
- categoryManager.addCategoryEntry("app-startup", CLASS_NAME, "service," + CONTRACT_ID, true, true);
- },
-
- unregisterSelf: function(aCompMgr, aLocation, aType)
- {
- aCompMgr = aCompMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);
- aCompMgr.unregisterFactoryLocation(CLASS_ID, aLocation);
- },
-
- getClassObject: function(aCompMgr, aCID, aIID)
- {
- if (!aIID.equals(Components.interfaces.nsIFactory))
- throw Components.results.NS_ERROR_NOT_IMPLEMENTED;
- if (aCID.equals(CLASS_ID))
- return Factory;
- throw Components.results.NS_ERROR_NO_INTERFACE;
- },
-
- canUnload: function(aCompMgr) { return true; }
- };
-
- var Factory = {
- createInstance: function(aOuter, aIID)
- {
- if (aOuter != null)
- throw Components.results.NS_ERROR_NO_AGGREGATION;
- return (new flockLoggingService()).QueryInterface(aIID);
- }
- };
-
- function NSGetModule(aCompMgr, aFileSpec) { return Module; }
-
-