Comodojo\Dispatcher\Components\CacheManager

Complexity

Total Complexity

30

Size/Duplication

Total Lines	149
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	8

Test Coverage

Coverage

52.54%

Importance

Changes	3
Bugs	0	Features	0

8 Methods

Rating	Name	Duplication	Size	Complexity
C	init()	0	23	7
A	create()	0	7	1
C	getHandler()	0	40	7
A	getApcProvider()	0	5	1
B	getMemcachedProvider()	0	10	5
A	getPhpRedisProvider()	0	9	4
A	getAlgorithm()	0	9	2
A	getFilesystemProvider()	0	14	3

<?php namespace Comodojo\Dispatcher\Components;


use \Comodojo\Dispatcher\Components\Model as DispatcherClassModel;

use \comodojo\Dispatcher\Components\Configuration;

use \Comodojo\Cache\Providers\ProviderInterface;

use \Comodojo\Cache\Providers\Filesystem;

use \Comodojo\Cache\Providers\Memcached;

use \Comodojo\Cache\Providers\Apc;

use \Comodojo\Cache\Providers\PhpRedis;

use \Comodojo\Cache\Cache;

use \Psr\Log\LoggerInterface;


/**

 * @package     Comodojo Dispatcher

 * @author      Marco Giovinazzi <marco.giovinazzi@comodojo.org>

 * @author      Marco Castiello <marco.castiello@gmail.com>

 * @license     GPL-3.0+

 *

 * LICENSE:

 *

 * This program is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Affero General Public License as

 * published by the Free Software Foundation, either version 3 of the

 * License, or (at your option) any later version.

 *

 * This program 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 Affero General Public License for more details.

 *

 * You should have received a copy of the GNU Affero General Public License

 * along with this program. If not, see <http://www.gnu.org/licenses/>.

 */


class CacheManager extends DispatcherClassModel {


    protected static $algorithms = array(

        'PICK_LAST' => Cache::PICK_LAST,

        'PICK_RANDOM' => Cache::PICK_RANDOM,

        'PICK_BYWEIGHT' => Cache::PICK_BYWEIGHT,

        'PICK_ALL' => Cache::PICK_ALL,

        'PICK_TRAVERSE' => Cache::PICK_TRAVERSE,

        'PICK_FIRST' => Cache::PICK_FIRST

    );


    public function init() {


        $cache = $this->configuration->get('cache');


        $algorithm = self::getAlgorithm( empty($cache['algorithm']) ? null : $cache['algorithm']);


        $manager = new Cache($algorithm, $this->logger);


        if ( !empty($cache) && !empty($cache['providers']) && is_array($cache['providers']) ) {


            foreach ($cache['providers'] as $provider => $parameters) {


                list($handler, $weight) = $this->getHandler($provider, $parameters);


                if ( $handler instanceof ProviderInterface ) $manager->addProvider($handler, $weight);


            }


        }


        return $manager;


    }


    /**

     * Create the Cache Manager

     *

     * @return \Comodojo\Cache\Cache

     */

    public static function create(Configuration $configuration, LoggerInterface $logger) {


        $cache = new CacheManager($configuration, $logger);


        return $cache->init();


    }


    protected function getHandler($provider, $parameters) {


        if ( empty($parameters['type']) ) return array(null, null);


        $weight = empty($parameters['weight']) ? 0 : $parameters['weight'];


        switch ( $parameters['type'] ) {


            case 'Filesystem':

The case body in a switch statement must start on the line following the statement.

                $handler = $this->getFilesystemProvider($provider, $parameters);


                break;


            case 'Apc':

The case body in a switch statement must start on the line following the statement.

                $handler = $this->getApcProvider($provider, $parameters);


                break;


            case 'Memcached':

The case body in a switch statement must start on the line following the statement.

                $handler = $this->getMemcachedProvider($provider, $parameters);


                break;


            case 'PhpRedis':

The case body in a switch statement must start on the line following the statement.

                $handler = $this->getPhpRedisProvider($provider, $parameters);


                break;


            default:

                $handler = null;

                break;

        }


        return array($handler, $weight);


    }


    protected function getFilesystemProvider($provider, $parameters) {


        $base = $this->configuration->get('base-path');


        if ( empty($parameters['folder']) ||  empty($base) ) {

            $this->logger->warning("Wrong cache provider, disabling $provider", $parameters);

            return null;

        }


        $target = $base.'/'.$parameters['folder'];


        return new Filesystem($target);


    }


    protected function getApcProvider($provider, $parameters) {

The parameter $provider is not used and could be removed.

The parameter $parameters is not used and could be removed.

        return new Apc();


    }


    protected function getMemcachedProvider($provider, $parameters) {

The parameter $provider is not used and could be removed.

        $server = empty($parameters['server']) ? '127.0.0.1' : $parameters['server'];

        $port = empty($parameters['port']) ? '1121' : $parameters['port'];

        $weight = empty($parameters['weight']) ? 0 : $parameters['weight'];

        $persistent_id = empty($parameters['persistent_id']) ? null : $parameters['persistent_id'];


        return new Memcached($server, $port, $weight, $persistent_id);


    }


    protected function getPhpRedisProvider($provider, $parameters) {

The parameter $provider is not used and could be removed.

        $server = empty($parameters['server']) ? '127.0.0.1' : $parameters['server'];

        $port = empty($parameters['port']) ? '1121' : $parameters['port'];

        $timeout = empty($parameters['timeout']) ? 0 : $parameters['timeout'];


        return new PhpRedis($server, $port, $timeout);


    }


    /**

     * Map provided log level to level code

     *

     * @param   string    $algorithm

     *

     * @return  integer

     */

    protected static function getAlgorithm($algorithm = null) {


        $algorithm = strtoupper($algorithm);


        if ( array_key_exists($algorithm, self::$algorithms) ) return self::$algorithms[$algorithm];


        return self::$algorithms['PICK_FIRST'];


    }


}