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<?php
/**
* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
* SPDX-License-Identifier: AGPL-3.0-only
*/
namespace OC\Command;
use OCP\Command\IBus;
use OCP\Command\ICommand;
class QueueBus implements IBus {
/**
* @var ICommand[]|callable[]
*/
private $queue = [];
/**
* Schedule a command to be fired
*
* @param \OCP\Command\ICommand | callable $command
*/
public function push($command) {
$this->queue[] = $command;
}
/**
* Require all commands using a trait to be run synchronous
*
* @param string $trait
*/
public function requireSync($trait) {
}
/**
* @param \OCP\Command\ICommand | callable $command
*/
private function runCommand($command) {
if ($command instanceof ICommand) {
// ensure the command can be serialized
$serialized = serialize($command);
if (strlen($serialized) > 4000) {
throw new \InvalidArgumentException('Trying to push a command which serialized form can not be stored in the database (>4000 character)');
}
$unserialized = unserialize($serialized);
$unserialized->handle();
} else {
$command();
}
}
public function run() {
while ($command = array_shift($this->queue)) {
$this->runCommand($command);
}
}
}
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