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<?php |
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/** |
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* Copyright (c) 2018 Justin Kuenzel (jukusoft.com) |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/** |
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* Project: JuKuCMS |
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* License: Apache 2.0 license |
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* User: Justin |
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* Date: 16.04.2018 |
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* Time: 20:29 |
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*/ |
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class Task { |
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protected $row = null; |
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public function __construct(array $row = array()) { |
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if (!empty($row)) { |
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$this->row = $row; |
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} |
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} |
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public function load (int $id) { |
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$row = Database::getInstance()->getRow("SELECT * FROM `{praefix}tasks` WHERE `id` = :id; ", array( |
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'id' => array( |
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'type' => PDO::PARAM_INT, |
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'value' => $id |
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) |
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)); |
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if (!$row || empty($row)) { |
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throw new IllegalArgumentException("Task with id '" . $id . "' doesnt exists in database!"); |
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} |
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$this->row = $row; |
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} |
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public function getID () : int { |
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return $this->row['id']; |
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} |
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public function getTitle () : string { |
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return $this->row['title']; |
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} |
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public function getType () : string { |
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return $this->row['type']; |
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} |
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public function getTypeParams () : array { |
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return $this->row['type_params']; |
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} |
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public function getFile () : string { |
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if (!PHPUtils::strEqs($this->getType(), "FILE")) { |
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throw new IllegalStateException("Task with id '" . $this->getID() . "' is not of type 'FILE', so cannot return file path in method Task::getFile()."); |
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} |
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return $this->getTypeParams(); |
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} |
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public function getParams () : array { |
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return unserialize($this->row['params']); |
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} |
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/** |
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* try to lock task |
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*/ |
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public function lock () : bool { |
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if (Cache::contains("task-locks", "task-" . $this->getID)) { |
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return false; |
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} |
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Cache::put("task-locks", "task-" . $this->getID, time()); |
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return true; |
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} |
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public function unlock () { |
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Cache::clear("task-locks", "task-" . $this->getID); |
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} |
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public function execute () : bool { |
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//first try to lock task, so other scripts cannot execute same task at same time |
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if (!$this->lock()) { |
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return false; |
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} |
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try { |
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$array = explode(":", $this->getTypeParams()); |
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$params = $this->getParams(); |
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switch (strtolower($this->getType())) { |
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case "file": |
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$file = $this->getFile(); |
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//check, if file exists |
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if (file_exists(ROOT_PATH . $file)) { |
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require(ROOT_PATH . $file); |
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} else { |
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throw new IllegalStateException("required file for task with id '" . $this->getID() . "' not found: " . $file); |
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} |
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break; |
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case "function": |
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$class_method = $array[0]; |
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call_user_func($class_method, $params); |
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break; |
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case "class_static_method": |
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$class_name = $array[0]; |
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$class_method = $array[1]; |
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call_user_func(array($class_name, $class_method), $params); |
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break; |
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default: |
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throw new IllegalStateException("unknown task type '" . $this->getType() . "' for task id '" . $this->getID() . "'!"); |
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break; |
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} |
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} catch (Exception $e) { |
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echo $e->getTraceAsString(); |
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} finally { |
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//unlock task |
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$this->unlock(); |
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} |
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return true; |
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} |
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/** |
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* set last execution timestamp to now |
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*/ |
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public function setLastExecution () { |
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//update database, set last execution timestamp to now |
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Database::getInstance()->execute("UPDATE `{praefix}tasks` SET `last_execution` = NOW() WHERE `id` = :id; ", array( |
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'id' => array( |
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'type' => PDO::PARAM_INT, |
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'value' => $this->getID() |
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) |
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)); |
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} |
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public static function cast (Task $task) : Task { |
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return $task; |
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} |
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} |
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164
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?> |
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JuKu /
JuKuCMS
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