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<?php |
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declare(strict_types = 1); |
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/** |
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* Contains CachePreserver class. |
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* |
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* PHP version 7.0+ |
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* |
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* LICENSE: |
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* This file is part of Yet Another Php Eve Api Library also know as Yapeal |
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* which can be used to access the Eve Online API data and place it into a |
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* database. |
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* Copyright (C) 2014-2017 Michael Cummings |
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* |
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* This program is free software: you can redistribute it and/or modify it |
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* under the terms of the GNU Lesser General Public License as published by the |
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* Free Software Foundation, either version 3 of the License, or (at your |
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* option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
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* for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see |
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* <http://spdx.org/licenses/LGPL-3.0.html>. |
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* |
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* You should be able to find a copy of this license in the COPYING-LESSER.md |
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* file. A copy of the GNU GPL should also be available in the COPYING.md file. |
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* |
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* @copyright 2014-2017 Michael Cummings |
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* @license LGPL-3.0+ |
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* @author Michael Cummings <[email protected]> |
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*/ |
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namespace Yapeal\FileSystem; |
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use Yapeal\Event\EveApiEventEmitterTrait; |
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use Yapeal\Event\EveApiEventInterface; |
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use Yapeal\Event\EveApiPreserverInterface; |
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use Yapeal\Event\MediatorInterface; |
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use Yapeal\Log\Logger; |
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/** |
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* Class CachePreserver |
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*/ |
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class CachePreserver implements EveApiPreserverInterface |
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{ |
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use SafeFileHandlingTrait; |
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use EveApiEventEmitterTrait; |
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/** |
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* @param string $cachePath |
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* @param bool $preserve |
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*/ |
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public function __construct(string $cachePath, bool $preserve = false) |
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{ |
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$this->setCachePath($cachePath) |
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->setPreserve($preserve); |
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} |
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/** |
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* @param EveApiEventInterface $event |
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* @param string $eventName |
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* @param MediatorInterface $yem |
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* |
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* @return EveApiEventInterface |
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* @throws \DomainException |
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* @throws \InvalidArgumentException |
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* @throws \LogicException |
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* @throws \UnexpectedValueException |
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*/ |
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public function preserveEveApi( |
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EveApiEventInterface $event, |
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string $eventName, |
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MediatorInterface $yem |
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): EveApiEventInterface { |
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if (!$this->shouldPreserve()) { |
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return $event; |
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} |
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$data = $event->getData(); |
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$yem->triggerLogEvent('Yapeal.Log.log', |
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Logger::DEBUG, |
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$this->getReceivedEventMessage($data, $eventName, __CLASS__)); |
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// BaseSection/ApiHash.xml |
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$cacheFile = sprintf('%s%s/%s%s.xml', |
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$this->getCachePath(), |
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ucfirst($data->getEveApiSectionName()), |
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ucfirst($data->getEveApiName()), |
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$data->getHash()); |
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if ('' === $xml = $data->getEveApiXml()) { |
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return $event; |
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} |
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// Insures retriever never see partly written file by deleting old file and using temp file for writing. |
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if (false === $this->safeFileWrite($cacheFile, $xml)) { |
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return $event; |
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} |
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return $event->setHandledSufficiently(); |
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} |
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/** |
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* @param string $value |
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* |
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* @return self Fluent interface. |
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*/ |
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public function setCachePath(string $value): self |
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{ |
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$this->cachePath = $value; |
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return $this; |
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} |
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/** |
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* Turn on or off preserving of Eve API data by this preserver. |
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* |
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* Allows class to stay registered for events but be enabled or disabled during runtime. |
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* |
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* @param bool $value |
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* |
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* @return self Fluent interface. |
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*/ |
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public function setPreserve(bool $value = true): self |
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{ |
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$this->preserve = $value; |
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return $this; |
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} |
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/** |
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* @return string |
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* @throws \LogicException |
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*/ |
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protected function getCachePath() |
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{ |
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if (null === $this->cachePath || '' === $this->cachePath) { |
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$mess = 'Trying to use cachePath before it was set'; |
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throw new \LogicException($mess); |
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} |
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return $this->cachePath; |
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} |
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/** |
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* @return bool |
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*/ |
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private function shouldPreserve() |
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{ |
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return $this->preserve; |
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} |
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/** |
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* @var string $cachePath |
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*/ |
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private $cachePath; |
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/** |
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* @var bool $preserve |
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*/ |
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private $preserve = false; |
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} |
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