Main notification handling routines for sending notifications to recipients. More...

Collaboration diagram for ilNotificationSystem:

Static Public Member Functions
static	sendNotificationToUsers (ilNotificationConfig $notification, $users, $processAsync=false)
static	sendNotificationToListeners (ilNotificationConfig $notification, $ref_id, $processAsync=false)
static	sendNotificationToRoles (ilNotificationConfig $notification, array $roles, $processAsync=false)
static	enableListeners ($module, $ref_id)
static	enableUserListeners ($module, $ref_id, array $users)

Private Member Functions
	__construct ()
	addHandler ($channel, ilNotificationHandler $handler)
	Registers a new handler for the given channel name.
	toUsers (ilNotificationConfig $notification, $users, $processAsync=false)
	Creates the user notifications and send them.
	toListeners (ilNotificationConfig $notification, $ref_id, $processAsync=false)
	Sends the notification to all listener which are subscribed to the given ref_id.
	toRoles (ilNotificationConfig $notification, array $roles, $processAsync=false)
	Send a notification to a list of roles.

Static Private Member Functions
static	getInstance ()

Private Attributes
	$handler = array()
	$defaultLanguage = 'en'

Static Private Attributes
static	$instance

Detailed Description

Main notification handling routines for sending notifications to recipients.

Recipients may be

a list of user ids
roles
users which registered a listener to an ref_id

Definition at line 13 of file class.ilNotificationSystem.php.

Constructor & Destructor Documentation

ilNotificationSystem::__construct ( )

private

Definition at line 21 of file class.ilNotificationSystem.php.

References addHandler().

                                    {
        require_once 'Services/Notifications/classes/class.ilNotificationEchoHandler.php';
        require_once 'Services/Notifications/classes/class.ilNotificationOSDHandler.php';
        require_once 'Services/Notifications/classes/class.ilNotificationMailHandler.php';
                // add default handlers
        $this->addHandler('echo', new ilNotificationEchoHandler());
        $this->addHandler('osd', new ilNotificationOSDHandler());
        $this->addHandler('mail', new ilNotificationMailHandler());
    }

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Member Function Documentation

ilNotificationSystem::addHandler	(		$channel,
		ilNotificationHandler	$handler
	)

private

Registers a new handler for the given channel name.

Parameters

string	$channel
ilNotificationHandler	$handler

Definition at line 46 of file class.ilNotificationSystem.php.

References $handler.

Referenced by __construct().

                                                                          {
        if (!array_key_exists($channel, $this->handler) || !is_array($this->handler[$channel]))
            $this->handler[$channel] = array();
        $this->handler[$channel][] = $handler;
    }

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static ilNotificationSystem::enableListeners	(	$module,
		$ref_id
	)

static

Definition at line 238 of file class.ilNotificationSystem.php.

References $ref_id.

Referenced by enableUserListeners().

                                                             {
        require_once 'Services/Notifications/classes/class.ilNotificationDatabaseHelper.php';
        ilNotificationDatabaseHandler::enableListeners($module, $ref_id);
    }

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static ilNotificationSystem::enableUserListeners	(		$module,
			$ref_id,
		array	$users
	)

static

Definition at line 243 of file class.ilNotificationSystem.php.

References $ref_id, and enableListeners().

                                                                               {
        if (!$users)
            return;
        require_once 'Services/Notifications/classes/class.ilNotificationDatabaseHelper.php';
        ilNotificationDatabaseHandler::enableListeners($module, $ref_id, $users);
    }

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static ilNotificationSystem::getInstance ( )

staticprivate

Definition at line 33 of file class.ilNotificationSystem.php.

References $instance.

Referenced by sendNotificationToListeners(), sendNotificationToRoles(), and sendNotificationToUsers().

                                          {
        if (!self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }

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static ilNotificationSystem::sendNotificationToListeners	(	ilNotificationConfig	$notification,
			$ref_id,
			$processAsync = `false`
	)

static

See Also: ilNotificationSystem::toListeners()

Parameters

ilNotificationConfig	$notification
int	$ref_id
boolean	$processAsync

Definition at line 223 of file class.ilNotificationSystem.php.

References $ref_id, and getInstance().

Referenced by ilNotificationConfig\notifyByListeners().

                                                                                                                           {
        self::getInstance()->toListeners($notification, $ref_id, $processAsync);
    }

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static ilNotificationSystem::sendNotificationToRoles	(	ilNotificationConfig	$notification,
		array	$roles,
			$processAsync = `false`
	)

static

See Also: ilNotificationSystem::toRoles()

Parameters

ilNotificationConfig	$notification
	string[]	$users
boolean	$processAsync

Definition at line 234 of file class.ilNotificationSystem.php.

References getInstance().

Referenced by ilNotificationConfig\notifyByRoles().

                                                                                                                            {
        self::getInstance()->toRoles($notification, $roles, $processAsync);
    }

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static ilNotificationSystem::sendNotificationToUsers	(	ilNotificationConfig	$notification,
			$users,
			$processAsync = `false`
	)

static

See Also: ilNotificationSystem::toUsers()

Parameters

ilNotificationConfig	$notification
	int[]	$users
boolean	$processAsync

Definition at line 212 of file class.ilNotificationSystem.php.

References getInstance().

Referenced by ilNotificationConfig\notifyByUsers(), and ilNotificationOSDHandler\removeNotification().

                                                                                                                      {
        self::getInstance()->toUsers($notification, $users, $processAsync);
    }

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ilNotificationSystem::toListeners	(	ilNotificationConfig	$notification,
			$ref_id,
			$processAsync = `false`
	)

private

Sends the notification to all listener which are subscribed to the given ref_id.

Parameters

ilNotificationConfig	$notification
type	$ref_id
type	$processAsync

Definition at line 164 of file class.ilNotificationSystem.php.

References $ref_id, ilNotificationDatabaseHandler\disableListeners(), ilNotificationDatabaseHandler\enqueueByListener(), ilNotificationConfig\getType(), ilNotificationDatabaseHandler\getUsersByListener(), ilNotificationConfig\hasDisableAfterDeliverySet(), and toUsers().

                                                                                                     {
        require_once 'Services/Notifications/classes/class.ilNotificationUserIterator.php';
        require_once 'Services/Notifications/classes/class.ilNotificationDatabaseHelper.php';
        if ($processAsync == false) {
            $users = ilNotificationDatabaseHandler::getUsersByListener($notification->getType(), $ref_id);
            self::toUsers($notification, $users, false);
            if ($notification->hasDisableAfterDeliverySet()) {
                ilNotificationDatabaseHandler::disableListeners($notification->getType(), $ref_id);
            }
        }
        else {
            ilNotificationDatabaseHandler::enqueueByListener($notification, $ref_id);
        }
    }

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ilNotificationSystem::toRoles	(	ilNotificationConfig	$notification,
		array	$roles,
			$processAsync = `false`
	)

private

Send a notification to a list of roles.

The recipients are fetched by calling $rbacreview->assignedUsers($roles[$i]).

ilRbacReview $rbacreview

Parameters

ilNotificationConfig	$notification
array	$roles
boolean	$processAsync

Definition at line 189 of file class.ilNotificationSystem.php.

References toUsers().

                                                                                                      {
        require_once 'Services/Notifications/classes/class.ilNotificationUserIterator.php';
        require_once 'Services/Notifications/classes/class.ilNotificationDatabaseHelper.php';
        
        global $rbacreview;
        $users = array();
        foreach($roles as $role) {
            $users[] = $rbacreview->assignedUsers($role);
        }
                // make sure to handle every user only once
        $users = array_unique(call_user_func_array('array_merge', $users));
        self::toUsers($notification, $users, $processAsync);
    }

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ilNotificationSystem::toUsers	(	ilNotificationConfig	$notification,
			$users,
			$processAsync = `false`
	)

private

Creates the user notifications and send them.

If processAsync is true the notifications will be serialized and persisted to the database

Parameters

ilNotificationConfig	$notification
type	$users
type	$processAsync

Todo:: was ist hier?

Definition at line 61 of file class.ilNotificationSystem.php.

References $handler, $instance, $lang, $usr_id, ilNotificationDatabaseHandler\enqueueByUsers(), ilNotificationDatabaseHandler\getAvailableChannels(), ilNotificationDatabaseHandler\getAvailableTypes(), ilNotificationConfig\getLanguageParameters(), ilNotificationConfig\getType(), ilNotificationConfig\getUserInstance(), ilNotificationDatabaseHandler\getUsersWithCustomConfig(), and ilNotificationDatabaseHandler\loadUserConfig().

Referenced by toListeners(), and toRoles().

                                                                                                {
        
        require_once 'Services/Notifications/classes/class.ilNotificationUserIterator.php';
        require_once 'Services/Notifications/classes/class.ilNotificationDatabaseHelper.php';
                // if async processing is disabled send them immediately 
        if ($processAsync == false) {
                        // loading the default configuration
            $adminConfig = ilNotificationDatabaseHandler::loadUserConfig(-1);
            $usersWithCustomConfig = ilNotificationDatabaseHandler::getUsersWithCustomConfig($users);
                        // @todo this loop might be obsolet :)
            foreach($users as $user_id) {
                if ($usersWithCustomConfig[$user_id]) {
                }
            }
                        // load all available channels
            $channels = ilNotificationDatabaseHandler::getAvailableChannels();
                        // load all available types
            $types = ilNotificationDatabaseHandler::getAvailableTypes();
                        // preload translation vars
            $lang = ilNotificationDatabaseHandler::getTranslatedLanguageVariablesOfNotificationParameters($notification->getLanguageParameters());
            $user_by_handler = array();
                        // check if the type allows custom user configurations for determining
                        // the output channel (e.g. send chat notifications only via osd)
            if ($types[$notification->getType()]['config_type'] == 'set_by_user') {
                $it = new ilNotificationUserIterator($notification->getType(), $users);
                
                $channelsByAdmin = false;
                                // add the user to each channel he configured in his own configuration
                foreach($it as $usr_id => $data) {
                                        // the configured user channel is (currently) not known
                    if (!$channels[$data['channel']])
                        continue;
                    
                    if (!$user_by_handler[$data['channel']])
                        $user_by_handler[$data['channel']] = array();
                    $user_by_handler[$data['channel']][] = $usr_id;
                }
            }
                        // if type is configured to allow settings only applied by admin
            else if ($types[$notification->getType()]['config_type'] != 'disabled') {
                $channelsByAdmin = true;
                //$user_by_handler = array();
                                if (isset($adminConfig[$notification->getType()])) {
                                        foreach($adminConfig[$notification->getType()] as $channel) {
                                                if (!$channels[$channel])
                                                        continue;
                                                $user_by_handler[$channel] = $users;
                                        }
                                }
            }
            $userCache = array();
                        // process the notifications for each output channel
            foreach($user_by_handler as $handler => $users) {
                $handler = $this->handler[$handler];
                                // and process each user for the current output channel
                foreach($users as $userId) {
                    if (!$userCache[$userId]) {
                        $userCache[$userId] = new ilObjUser($userId);
                    }
                    $user = $userCache[$userId];
                                        // optain the message instance for the user
                                        // @todo this step could be cached on a per user basis
                                        //       as it is independed from the output handler
                    $instance = $notification->getUserInstance($user, $lang, $this->defaultLanguage);
                    foreach($handler as $h) {
                                                // fire the notification
                        $h->notify($instance);
                    }
                }
            }
        }
                // use async processing
        else {
                        // just enque the current configuration
            ilNotificationDatabaseHandler::enqueueByUsers($notification, $users);
        }
    }