TYPO3 Command Controller TypoScript from different rootPid

AbstractCommandController.php

<?php

namespace Onedrop\Solution\Command;

/*****************************************************************
 *  Copyright notice
 *
 *  (c) 2015 Hans Höchtl <hhoechtl@1drop.de>
 *
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 *****************************************************************/

use FluidTYPO3\Flux\Configuration\BackendConfigurationManager;
use TYPO3\CMS\Extbase\Mvc\Controller\CommandController;
use TYPO3\CMS\Core\Log\LogManager;

/**
 * Class AbstractCommandController
 *
 * @package Onedrop\Solution\Command
 */
abstract class AbstractCommandController extends CommandController {

	/**
	 * @var BackendConfigurationManager
	 */
	protected $configurationManager;
	/**
	 * @var array
	 */
	protected $settings;
	/**
	 * @var string
	 */
	protected $_EXTKEY = 'solution';
	/**
	 * @var int
	 */
	protected $_TS_PID = 1;

	/**
	 * We add the functionality to have magic initialize methods in front of a command
	 */
	protected function mapRequestArgumentsToControllerArguments()
	{
		$this->initializeCommand();
		$actionInitializationMethodName = 'initialize' . ucfirst($this->commandMethodName);
		if (method_exists($this, $actionInitializationMethodName)) {
			call_user_func(array($this, $actionInitializationMethodName));
		}
		parent::mapRequestArgumentsToControllerArguments();
	}


	/**
	 * initialize controller settings
	 */
	protected function initializeCommand() {
		$this->configurationManager = $this->objectManager->get(BackendConfigurationManager::class);
		/*
		 * This clears the first level typoscript cache, so we can reload the configuration from a different PID.
		 * The TS configuration has already been loaded from PID 1 at this point.
		 */
		$this->configurationManager->setConfiguration();
		$this->configurationManager->setCurrentPageId($this->_TS_PID);
		$this->settings = [];
		$tsSettings = $this->configurationManager->getConfiguration($this->_EXTKEY);
		if (isset($tsSettings['settings'])) {
			$this->settings = $tsSettings['settings'];
		}
		$this->settings['_rootPid'] = $this->_TS_PID;
	}
}

SomeService.php

<?php
namespace Onedrop\Solution\Service;
/***************************************************************
 *  Copyright notice
 *
 *  (c) 2015 Hans Höchtl <hhoechtl@1drop.de>
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *  A copy is found in the textfile GPL.txt and important notices to the license
 *  from the author is found in LICENSE.txt distributed with these scripts.
 *
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

use TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface;

class SomeService
{
	/**
	 * @var array
	 */
	protected $settings;
	/**
	 * @var \TYPO3\CMS\Extbase\Configuration\ConfigurationManagerInterface
	 * @inject
	 */
	protected $configurationManager;

	/**
	 * Initialize the indexer
	 */
	public function initializeObject()
	{
		$this->settings = $this->configurationManager->getConfiguration(ConfigurationManagerInterface::CONFIGURATION_TYPE_SETTINGS,
			'solution');
	}

	/**
	 * @param array $settings
	 */
	public function injectSettings(array $settings) {
		$this->settings = $settings;
	}

	/**
	 * Do something fancy
	 */
	public function doSomething()
	{
		// TODO: add code here
	}
}