Guzzle5Factory - Code Metrics - Inspection of "Update discovery dependency" - php-http/HttplugBundle - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#33)

by Márk

created 2016-01-15 17:21 UTC

Guzzle5Factory A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	16
Duplicated Lines	100 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	16
loc	16
wmc	2
lcom	0
cbo	1
rs	10

1 Method

Rating	Name	Duplication	Size	Complexity
A	createClient()	10	10	2

How to fix Duplicated Code

<?php

namespace Http\HttplugBundle\ClientFactory;

use GuzzleHttp\Client;
use Http\Adapter\Guzzle5\Client as Adapter;

/**
 * @author Tobias Nyholm <[email protected]>
 */
class Guzzle5Factory implements ClientFactoryInterface

{
    /**
     * {@inheritdoc}
     */
    public function createClient(array $config = [])
    {
        if (!class_exists('Http\Adapter\Guzzle5\Client')) {
            throw new \LogicException('To use the Guzzle5 adapter you need to install the "php-http/guzzle5-adapter" package.');
        }

        $client = new Client($config);

        return new Adapter($client);
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }
}


1		<?php
2
3		namespace Http\HttplugBundle\ClientFactory;
4
5		use GuzzleHttp\Client;
6		use Http\Adapter\Guzzle5\Client as Adapter;
7
8		/**
9		* @author Tobias Nyholm <[email protected]>
10		*/
11	View Code Duplication	class Guzzle5Factory implements ClientFactoryInterface
		0 ignored issues – show Duplication introduced 2016-01-15 17:50 UTC by Report Bug Copy Issue Report This class seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
12		{
13		/**
14		* {@inheritdoc}
15		*/
16		public function createClient(array $config = [])
17		{
18		if (!class_exists('Http\Adapter\Guzzle5\Client')) {
19		throw new \LogicException('To use the Guzzle5 adapter you need to install the "php-http/guzzle5-adapter" package.');
20		}
21
22		$client = new Client($config);
23
24		return new Adapter($client);
		0 ignored issues – show Bug Best Practice introduced 2016-01-15 17:50 UTC by Report Bug Copy Issue Report The return type of `return new \Http\Adapter\Guzzle5\Client($client);` (`Http\Adapter\Guzzle5\Client`) is incompatible with the return type declared by the interface `Http\HttplugBundle\Clien...Interface::createClient` of type `Http\Client\HttpClient`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
25		}
26		}
27

php-http / HttplugBundle

Pull Request — master (#33)

Guzzle5Factory A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

1 Method

How to fix Duplicated Code

Duplicated Code

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