ImageRoute   A
last analyzed

Complexity

Total Complexity 16

Size/Duplication

Total Lines 112
Duplicated Lines 5.36 %

Coupling/Cohesion

Components 1
Dependencies 6

Test Coverage

Coverage 53.49%

Importance

Changes 2
Bugs 0 Features 0
Metric Value
wmc 16
c 2
b 0
f 0
lcom 1
cbo 6
dl 6
loc 112
ccs 23
cts 43
cp 0.5349
rs 10

5 Methods

Rating   Name   Duplication   Size   Complexity  
A __construct() 0 10 3
B match() 0 27 5
B assemble() 6 26 6
A getAssembledParams() 0 5 1
A factory() 0 4 1

How to fix   Duplicated Code   

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

1
<?php
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namespace SvImages\Router;
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use SvImages\Exception\RuntimeException;
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use SvImages\Exception\TransformerNotFoundException;
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use SvImages\Exception\UnexpectedValueException;
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use SvImages\Parser\Result;
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use SvImages\Parser\UriParser;
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use Zend\Mvc\Router\Http\RouteInterface;
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use Zend\Stdlib\RequestInterface as Request;
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use Zend\Stdlib\ArrayUtils;
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use Zend\Mvc\Router\Exception\InvalidArgumentException;
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/**
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 * @author Vytautas Stankus <[email protected]>
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 * @license MIT
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 */
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class ImageRoute implements RouteInterface
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{
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    /**
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     * Default route options
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     *
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     * @var array
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     */
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    protected $options = [
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        'controller' => \SvImages\Controller\ImageController::class,
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        'action' => 'image',
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        'allow_options_override' => true,
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    ];
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    /**
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     * Create a new page route.
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     *
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     * @param array $options
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     */
37 5
    public function __construct(array $options = [])
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    {
39 5
        if ($options instanceof \Traversable) {
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            $options = ArrayUtils::iteratorToArray($options);
41 5
        } elseif (!is_array($options)) {
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            throw new InvalidArgumentException(__METHOD__ . ' expects an array or Traversable set of options');
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        }
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45 5
        $this->options = array_merge($this->options, $options);
46 5
    }
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    /**
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     * Match a given request.
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     *
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     * @param  Request $request
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     *
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     * @return RouteMatch|null
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     */
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    public function match(Request $request)
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    {
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        if (!method_exists($request, 'getUri')) {
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            return;
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        }
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        $uri  = $request->getUri();
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface Zend\Stdlib\RequestInterface as the method getUri() does only exist in the following implementations of said interface: Zend\Http\PhpEnvironment\Request, Zend\Http\Request.

Let’s take a look at an example:

interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
Loading history...
62
        $path = $uri->getPath();
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        try {
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            $parser = new UriParser($this->options);
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            $result = $parser->parseUri($path);
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            if (!$result instanceof Result) {
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                return;
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            }
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        } catch (UnexpectedValueException $exception) {
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            return; // todo: think about this
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        } catch (TransformerNotFoundException $exception) {
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            return; // todo: think about this
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        }
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        $routeMatch = new RouteMatch($this->options, strlen($path));
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        $routeMatch->setParserResult($result);
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        return $routeMatch;
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    }
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    /**
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     * {@inheritDoc}
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     */
86 5
    public function assemble(array $params = [], array $options = [])
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    {
88 5 View Code Duplication
        if (!array_key_exists('key', $params) || !is_string($params['key'])) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across 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.

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89 1
            throw new UnexpectedValueException('Route params requires "key" parameter');
90
        }
91 4 View Code Duplication
        if (!array_key_exists('transformers', $params) || !is_string($params['transformers'])) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across 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...
92 1
            throw new UnexpectedValueException('Route params requires "transformers" parameter');
93
        }
94
95 3
        $path = sprintf(
96 3
            '/%s/%s/f_key/%s',
97 3
            $this->options['container'],
98 3
            trim($params['transformers'], '/'),
99 3
            ltrim($params['key'], '/')
100 3
        );
101 3
        $parser = new UriParser($this->options);
102 3
        $result = $parser->parseUri($path);
103
104 2
        if (!$result instanceof Result) {
105 1
            throw new RuntimeException(sprintf(
106 1
                'Generated URI "%s" is invalid. Please verify that all parameters are correct.',
107
                $path
108 1
            ));
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        }
110 1
        return $path;
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    }
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    /**
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     * {@inheritDoc}
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     */
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    public function getAssembledParams()
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    {
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        // TODO: Implement getAssembledParams() method.
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        throw new \BadMethodCallException('Unsupported!');
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    }
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    /**
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     * @private
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     * @deprecated
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     */
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    public static function factory($options = [])
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    {
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        throw new \BadMethodCallException('Unsupported!');
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    }
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}
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