icingaweb2/library/Icinga/Web/Notification.php

138 lines
3.1 KiB
PHP

<?php
/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Web;
use Icinga\Exception\ProgrammingError;
use Icinga\Application\Platform;
use Icinga\Application\Logger;
use Icinga\Web\Session;
/**
* // @TODO(eL): Use Notification not as Singleton but within request:
* <code>
* <?php
* $request->[getUser()]->notify('some message', Notification::INFO);
* </code>
*/
class Notification
{
protected static $instance;
protected $isCli = false;
protected $session;
protected $messages = array();
public static function info($msg)
{
self::getInstance()->addMessage($msg, 'info');
}
public static function success($msg)
{
self::getInstance()->addMessage($msg, 'success');
}
public static function warning($msg)
{
self::getInstance()->addMessage($msg, 'warning');
}
public static function error($msg)
{
self::getInstance()->addMessage($msg, 'error');
}
protected function addMessage($message, $type = 'info')
{
if (! in_array(
$type,
array(
'info',
'error',
'warning',
'success'
)
)) {
throw new ProgrammingError(
'"%s" is not a valid notification type',
$type
);
}
if ($this->isCli) {
$msg = sprintf('[%s] %s', $type, $message);
switch ($type) {
case 'info':
case 'success':
Logger::info($msg);
break;
case 'warning':
Logger::warn($msg);
break;
case 'error':
Logger::error($msg);
break;
}
return;
}
$this->messages[] = (object) array(
'type' => $type,
'message' => $message,
);
}
public function hasMessages()
{
return false === empty($this->messages);
}
public function getMessages()
{
$messages = $this->messages;
$this->messages = array();
return $messages;
}
final private function __construct()
{
if (Platform::isCli()) {
$this->isCli = true;
return;
}
$this->session = Session::getSession();
$stored = $this->session->get('messages');
if (is_array($stored)) {
$this->messages = $stored;
$this->session->set('messages', array());
$this->session->write();
}
}
public static function getInstance()
{
if (self::$instance === null) {
self::$instance = new Notification();
}
return self::$instance;
}
final public function __destruct()
{
if ($this->isCli) {
return;
}
if ($this->session->get('messages') !== $this->messages) {
$this->session->set('messages', $this->messages);
}
$this->session->write();
unset($this->session);
}
}