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<?php |
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/** |
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* @copyright Copyright (c) 2017 Robin Appelman <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OC\Command; |
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use OCP\Command\ICommand; |
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use SuperClosure\Serializer; |
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class CronBus extends AsyncBus { |
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/** |
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* @var \OCP\BackgroundJob\IJobList |
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*/ |
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private $jobList; |
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/** |
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* @param \OCP\BackgroundJob\IJobList $jobList |
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*/ |
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public function __construct($jobList) { |
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$this->jobList = $jobList; |
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} |
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protected function queueCommand($command) { |
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$this->jobList->add($this->getJobClass($command), $this->serializeCommand($command)); |
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} |
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/** |
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* @param \OCP\Command\ICommand | callable $command |
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* @return string |
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*/ |
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private function getJobClass($command) { |
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if ($command instanceof \Closure) { |
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return 'OC\Command\ClosureJob'; |
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} else if (is_callable($command)) { |
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return 'OC\Command\CallableJob'; |
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} else if ($command instanceof ICommand) { |
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return 'OC\Command\CommandJob'; |
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} else { |
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throw new \InvalidArgumentException('Invalid command'); |
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} |
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} |
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/** |
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* @param \OCP\Command\ICommand | callable $command |
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* @return string |
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*/ |
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private function serializeCommand($command) { |
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if ($command instanceof \Closure) { |
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$serializer = new Serializer(); |
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return $serializer->serialize($command); |
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} else if (is_callable($command) or $command instanceof ICommand) { |
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return serialize($command); |
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} else { |
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throw new \InvalidArgumentException('Invalid command'); |
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} |
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} |
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} |
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nextcloud /
server
PHP has two types of connecting operators (logical operators, and boolean operators):
and&&or||The difference between these is the order in which they are executed. In most cases, you would want to use a boolean operator like
&&, or||.Let’s take a look at a few examples:
Logical Operators are used for Control-Flow
One case where you explicitly want to use logical operators is for control-flow such as this:
Since
dieintroduces problems of its own, f.e. it makes our code hardly testable, and prevents any kind of more sophisticated error handling; you probably do not want to use this in real-world code. Unfortunately, logical operators cannot be combined withthrowat this point:These limitations lead to logical operators rarely being of use in current PHP code.