Phossa2\Config\Delegator

Complexity

Total Complexity

13

Size/Duplication

Total Lines	93
Duplicated Lines	0 %

Coupling/Cohesion

Components	2
Dependencies	5

Importance

Changes	6
Bugs	0	Features	2

8 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	3	1
A	get()	0	7	2
A	has()	0	4	1
A	isWritable()	0	12	4
A	set()	0	11	2
A	isValidRegistry()	0	4	1
A	hasInRegistry()	0	7	1
A	getFromRegistry()	0	7	1

<?php
/**
 * Phossa Project
 *
 * PHP version 5.4
 *
 * @category  Library
 * @package   Phossa2\Config
 * @copyright Copyright (c) 2016 phossa.com
 * @license   http://mit-license.org/ MIT License
 * @link      http://www.phossa.com/
 */
/*# declare(strict_types=1); */

namespace Phossa2\Config;

use Phossa2\Config\Message\Message;
use Phossa2\Shared\Base\ObjectAbstract;
use Phossa2\Config\Traits\WritableTrait;
use Phossa2\Config\Traits\ArrayAccessTrait;
use Phossa2\Shared\Reference\DelegatorTrait;
use Phossa2\Config\Exception\LogicException;
use Phossa2\Config\Interfaces\ConfigInterface;
use Phossa2\Shared\Reference\DelegatorInterface;
use Phossa2\Config\Interfaces\WritableInterface;

/**
 * Delegator
 *
 * Implmentation of DelegatorInterface
 *
 * @package Phossa2\Config
 * @author  Hong Zhang <phossa@126.com>
 * @see     ObjectAbstract
 * @see     DelegatorInterface
 * @version 2.0.0
 * @since   2.0.0 added
 */
class Delegator extends ObjectAbstract implements \ArrayAccess, DelegatorInterface, ConfigInterface, WritableInterface
{
    use ArrayAccessTrait, DelegatorTrait, WritableTrait;

    /**
     * constructor
     *
     * @access public
     */
    public function __construct()
    {
    }

    /**
     * {@inheritDoc}
     */
    public function get(/*# string */ $key, $default = null)
    {
        if ($this->hasInLookup($key)) {
            return $this->getFromLookup($key);
        }
        return $default;
    }

    /**
     * {@inheritDoc}
     */
    public function has(/*# string */ $key)/*# : bool */
    {
        return $this->hasInLookup($key);
    }

    /**
     * {@inheritDoc}
     */
    public function isWritable()/*# : bool */
    {
        foreach ($this->lookup_pool as $reg) {
            if ($reg instanceof WritableInterface &&
                $reg->isWritable()
            ) {
                $this->setWritable($reg);
                return true;
            }
        }
        return false;
    }

    /**
     * {@inheritDoc}
     */
    public function set(/*# string */ $key, $value)
    {
        if ($this->isWritable()) {
            $this->writable->set($key, $value);
            return $this;
        }
        throw new LogicException(
            Message::get(Message::CONFIG_NOT_WRITABLE),
            Message::CONFIG_NOT_WRITABLE
        );
    }

    /**
     * {@inheritDoc}
     */
    protected function isValidRegistry($registry)/*# : bool */
    {
        return $registry instanceof ConfigInterface;
    }

    /**
     * {@inheritDoc}
     */
    protected function hasInRegistry(
        $registry,
        /*# string */ $key
    )/*# : bool */ {
        /* @var $registry ConfigInterface */
        return $registry->has($key);
    }

    /**
     * {@inheritDoc}
     */
    protected function getFromRegistry(
        $registry,
        /*# string */ $key
    ) {
        /* @var $registry ConfigInterface */
        return $registry->get($key);
    }
}