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/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource:///modules/gloda/log4moz.js");
////////////////////////////////////////////////////////////////////////////////
//// Constants
var Cc = Components.classes;
var Ci = Components.interfaces;
var Cr = Components.results;
////////////////////////////////////////////////////////////////////////////////
//// nsActivityManager class
function nsActivityManager()
{}
nsActivityManager.prototype = {
classID: Components.ID("8aa5972e-19cb-41cc-9696-645f8a8d1a06"),
//////////////////////////////////////////////////////////////////////////////
//// nsIActivityManager
log: Log4Moz.getConfiguredLogger("nsActivityManager"),
_listeners: [],
_processCount: 0,
_db: null,
_idCounter: 1,
_activities: new Map(),
get processCount() {
let count = 0;
for (let value of this._activities.values()) {
if (value instanceof Ci.nsIActivityProcess)
count++;
}
return count;
},
getProcessesByContext: function(aContextType, aContextObj, aCount) {
let list = [];
for (let activity of this._activities.values()) {
if (activity instanceof Ci.nsIActivityProcess &&
activity.contextType == aContextType &&
activity.contextObj == aContextObj) {
list.push(activity);
}
}
aCount.value = list.length;
return list;
},
get db() {
return null;
},
get nextId() {
return this._idCounter++;
},
addActivity: function (aActivity) {
try {
this.log.info("adding Activity");
// get the next valid id for this activity
let id = this.nextId;
aActivity.id = id;
// add activity into the activities table
this._activities.set(id, aActivity);
// notify all the listeners
for (let value of this._listeners) {
try {
value.onAddedActivity(id, aActivity);
}
catch(e) {
this.log.error("Exception calling onAddedActivity" + e)
}
}
return id;
} catch (e) {
// for some reason exceptions don't end up on the console if we don't
// explicitly log them.
this.log.error("Exception: " + e);
throw(e);
}
},
removeActivity: function (aID) {
let activity = this.getActivity(aID);
// make sure that the activity is not in-progress state
if (activity instanceof Ci.nsIActivityProcess &&
activity.state == Ci.nsIActivityProcess.STATE_INPROGRESS)
throw Cr.NS_ERROR_FAILURE;
// remove the activity
this._activities.delete(aID);
// notify all the listeners
for (let value of this._listeners) {
try {
value.onRemovedActivity(aID);
}
catch(e) {
// ignore the exception
}
}
},
cleanUp: function () {
// Get the list of aIDs.
this.log.info("cleanUp\n");
for (let [id, activity] of this._activities) {
if (activity instanceof Ci.nsIActivityProcess) {
// Note: The .state property will return undefined if you aren't in
// this if-instanceof block.
let state = activity.state;
if (state != Ci.nsIActivityProcess.STATE_INPROGRESS &&
state != Ci.nsIActivityProcess.STATE_PAUSED &&
state != Ci.nsIActivityProcess.STATE_WAITINGFORINPUT &&
state != Ci.nsIActivityProcess.STATE_WAITINGFORRETRY)
this.removeActivity(id);
}
else
this.removeActivity(id);
}
},
getActivity: function(aID) {
if (!this._activities.has(aID))
throw Cr.NS_ERROR_NOT_AVAILABLE;
return this._activities.get(aID);
},
containsActivity: function (aID) {
return this._activities.has(aID);
},
getActivities: function(aCount) {
let list = [...this._activities.values()];
aCount.value = list.length;
return list;
},
addListener: function(aListener) {
this.log.info("addListener\n");
this._listeners.push(aListener);
},
removeListener: function(aListener) {
this.log.info("removeListener\n");
for (let i = 0; i < this._listeners.length; i++) {
if (this._listeners[i] == aListener)
this._listeners.splice(i, 1);
}
},
//////////////////////////////////////////////////////////////////////////////
//// nsISupports
QueryInterface: XPCOMUtils.generateQI([Ci.nsIActivityManager])
};
////////////////////////////////////////////////////////////////////////////////
//// Module
var components = [nsActivityManager];
var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);
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