FilterManager::addLoader() - Code Metrics - Inspection of "Merge pull request #732 from Haehnchen/patch/event..." - liip/LiipImagineBundle - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 0a7932...aee286 )

by Maksim

created 2016-05-05 11:15 UTC

FilterManager::addLoader() A

↳ Parent: FilterManager

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
dl	0
loc	4
c	1
b	0
f	0
rs	10
cc	1
eloc	2
nc	1
nop	2

<?php

namespace Liip\ImagineBundle\Imagine\Filter;

use Imagine\Image\ImagineInterface;
use Liip\ImagineBundle\Binary\BinaryInterface;
use Liip\ImagineBundle\Binary\FileBinaryInterface;
use Liip\ImagineBundle\Binary\MimeTypeGuesserInterface;
use Liip\ImagineBundle\Imagine\Filter\PostProcessor\PostProcessorInterface;
use Liip\ImagineBundle\Imagine\Filter\Loader\LoaderInterface;
use Liip\ImagineBundle\Model\Binary;

class FilterManager
{
    /**
     * @var FilterConfiguration
     */
    protected $filterConfig;

    /**
     * @var ImagineInterface
     */
    protected $imagine;

    /**
     * @var MimeTypeGuesserInterface
     */
    protected $mimeTypeGuesser;

    /**
     * @var LoaderInterface[]
     */
    protected $loaders = array();

    /**
     * @var PostProcessorInterface[]
     */
    protected $postProcessors = array();

    /**
     * @param FilterConfiguration      $filterConfig
     * @param ImagineInterface         $imagine
     * @param MimeTypeGuesserInterface $mimeTypeGuesser
     */
    public function __construct(
        FilterConfiguration $filterConfig,
        ImagineInterface $imagine,
        MimeTypeGuesserInterface $mimeTypeGuesser
    ) {
        $this->filterConfig = $filterConfig;
        $this->imagine = $imagine;
        $this->mimeTypeGuesser = $mimeTypeGuesser;
    }

    /**
     * Adds a loader to handle the given filter.
     *
     * @param string          $filter
     * @param LoaderInterface $loader
     */
    public function addLoader($filter, LoaderInterface $loader)
    {
        $this->loaders[$filter] = $loader;
    }

    /**
     * Adds a post-processor to handle binaries.
     *
     * @param string                 $name
     * @param PostProcessorInterface $postProcessor
     */
    public function addPostProcessor($name, PostProcessorInterface $postProcessor)
    {
        $this->postProcessors[$name] = $postProcessor;
    }

    /**
     * @return FilterConfiguration
     */
    public function getFilterConfiguration()
    {
        return $this->filterConfig;
    }

    /**
     * @param BinaryInterface $binary
     * @param array           $config
     *
     * @throws \InvalidArgumentException
     *
     * @return Binary
     */
    public function apply(BinaryInterface $binary, array $config)
    {
        $config = array_replace(
            array(
                'filters' => array(),
                'quality' => 100,
                'animated' => false,
            ),
            $config
        );

        if ($binary instanceof FileBinaryInterface) {
            $image = $this->imagine->open($binary->getPath());
        } else {
            $image = $this->imagine->load($binary->getContent());
        }

        foreach ($config['filters'] as $eachFilter => $eachOptions) {
            if (!isset($this->loaders[$eachFilter])) {
                throw new \InvalidArgumentException(sprintf(
                    'Could not find filter loader for "%s" filter type', $eachFilter
                ));
            }

            $prevImage = $image;
            $image = $this->loaders[$eachFilter]->load($image, $eachOptions);

            // If the filter returns a different image object destruct the old one because imagick keeps consuming memory if we don't
            // See https://github.com/liip/LiipImagineBundle/pull/682
            if ($prevImage !== $image && method_exists($prevImage, '__destruct')) {
                $prevImage->__destruct();
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.
    }
}
            }
        }

        $options = array(
            'quality' => $config['quality'],
        );

        if (isset($config['jpeg_quality'])) {
            $options['jpeg_quality'] = $config['jpeg_quality'];
        }
        if (isset($config['png_compression_level'])) {
            $options['png_compression_level'] = $config['png_compression_level'];
        }
        if (isset($config['png_compression_filter'])) {
            $options['png_compression_filter'] = $config['png_compression_filter'];
        }

        if ($binary->getFormat() === 'gif' && $config['animated']) {
            $options['animated'] = $config['animated'];
        }

        $filteredFormat = isset($config['format']) ? $config['format'] : $binary->getFormat();
        $filteredContent = $image->get($filteredFormat, $options);
        $filteredMimeType = $filteredFormat === $binary->getFormat() ? $binary->getMimeType() : $this->mimeTypeGuesser->guess($filteredContent);

        // We are done with the image object so we can destruct the this because imagick keeps consuming memory if we don't
        // See https://github.com/liip/LiipImagineBundle/pull/682
        if (method_exists($image, '__destruct')) {
            $image->__destruct();
        }

        return $this->applyPostProcessors(new Binary($filteredContent, $filteredMimeType, $filteredFormat), $config);
    }

    /**
     * @param BinaryInterface $binary
     * @param array           $config
     *
     * @throws \InvalidArgumentException
     *
     * @return BinaryInterface
     */
    public function applyPostProcessors(BinaryInterface $binary, $config)
    {
        $config += array('post_processors' => array());
        foreach ($config['post_processors'] as $postProcessorName => $postProcessorOptions) {
            if (!isset($this->postProcessors[$postProcessorName])) {
                throw new \InvalidArgumentException(sprintf(
                    'Could not find post processor "%s"', $postProcessorName
                ));
            }
            $binary = $this->postProcessors[$postProcessorName]->process($binary);
        }

        return $binary;
    }

    /**
     * Apply the provided filter set on the given binary.
     *
     * @param BinaryInterface $binary
     * @param string          $filter
     * @param array           $runtimeConfig
     *
     * @throws \InvalidArgumentException
     *
     * @return BinaryInterface
     */
    public function applyFilter(BinaryInterface $binary, $filter, array $runtimeConfig = array())
    {
        $config = array_replace_recursive(
            $this->getFilterConfiguration()->get($filter),
            $runtimeConfig
        );

        return $this->apply($binary, $config);
    }
}


1			<?php
2
3			namespace Liip\ImagineBundle\Imagine\Filter;
4
5			use Imagine\Image\ImagineInterface;
6			use Liip\ImagineBundle\Binary\BinaryInterface;
7			use Liip\ImagineBundle\Binary\FileBinaryInterface;
8			use Liip\ImagineBundle\Binary\MimeTypeGuesserInterface;
9			use Liip\ImagineBundle\Imagine\Filter\PostProcessor\PostProcessorInterface;
10			use Liip\ImagineBundle\Imagine\Filter\Loader\LoaderInterface;
11			use Liip\ImagineBundle\Model\Binary;
12
13			class FilterManager
14			{
15			/**
16			* @var FilterConfiguration
17			*/
18			protected $filterConfig;
19
20			/**
21			* @var ImagineInterface
22			*/
23			protected $imagine;
24
25			/**
26			* @var MimeTypeGuesserInterface
27			*/
28			protected $mimeTypeGuesser;
29
30			/**
31			* @var LoaderInterface[]
32			*/
33			protected $loaders = array();
34
35			/**
36			* @var PostProcessorInterface[]
37			*/
38			protected $postProcessors = array();
39
40			/**
41			* @param FilterConfiguration $filterConfig
42			* @param ImagineInterface $imagine
43			* @param MimeTypeGuesserInterface $mimeTypeGuesser
44			*/
45			public function __construct(
46			FilterConfiguration $filterConfig,
47			ImagineInterface $imagine,
48			MimeTypeGuesserInterface $mimeTypeGuesser
49			) {
50			$this->filterConfig = $filterConfig;
51			$this->imagine = $imagine;
52			$this->mimeTypeGuesser = $mimeTypeGuesser;
53			}
54
55			/**
56			* Adds a loader to handle the given filter.
57			*
58			* @param string $filter
59			* @param LoaderInterface $loader
60			*/
61			public function addLoader($filter, LoaderInterface $loader)
62			{
63			$this->loaders[$filter] = $loader;
64			}
65
66			/**
67			* Adds a post-processor to handle binaries.
68			*
69			* @param string $name
70			* @param PostProcessorInterface $postProcessor
71			*/
72			public function addPostProcessor($name, PostProcessorInterface $postProcessor)
73			{
74			$this->postProcessors[$name] = $postProcessor;
75			}
76
77			/**
78			* @return FilterConfiguration
79			*/
80			public function getFilterConfiguration()
81			{
82			return $this->filterConfig;
83			}
84
85			/**
86			* @param BinaryInterface $binary
87			* @param array $config
88			*
89			* @throws \InvalidArgumentException
90			*
91			* @return Binary
92			*/
93			public function apply(BinaryInterface $binary, array $config)
94			{
95			$config = array_replace(
96			array(
97			'filters' => array(),
98			'quality' => 100,
99			'animated' => false,
100			),
101			$config
102			);
103
104			if ($binary instanceof FileBinaryInterface) {
105			$image = $this->imagine->open($binary->getPath());
106			} else {
107			$image = $this->imagine->load($binary->getContent());
108			}
109
110			foreach ($config['filters'] as $eachFilter => $eachOptions) {
111			if (!isset($this->loaders[$eachFilter])) {
112			throw new \InvalidArgumentException(sprintf(
113			'Could not find filter loader for "%s" filter type', $eachFilter
114			));
115			}
116
117			$prevImage = $image;
118			$image = $this->loaders[$eachFilter]->load($image, $eachOptions);
119
120			// If the filter returns a different image object destruct the old one because imagick keeps consuming memory if we don't
121			// See https://github.com/liip/LiipImagineBundle/pull/682
122			if ($prevImage !== $image && method_exists($prevImage, '__destruct')) {
123			$prevImage->__destruct();
			0 ignored issues – show Bug introduced 2015-12-21 19:03 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Imagine\Image\ImageInterface` as the method `__destruct()` does only exist in the following implementations of said interface: `Imagine\Gd\Image`, `Imagine\Gmagick\Image`, `Imagine\Imagick\Image`. 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 Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } 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. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
124			}
125			}
126
127			$options = array(
128			'quality' => $config['quality'],
129			);
130
131			if (isset($config['jpeg_quality'])) {
132			$options['jpeg_quality'] = $config['jpeg_quality'];
133			}
134			if (isset($config['png_compression_level'])) {
135			$options['png_compression_level'] = $config['png_compression_level'];
136			}
137			if (isset($config['png_compression_filter'])) {
138			$options['png_compression_filter'] = $config['png_compression_filter'];
139			}
140
141			if ($binary->getFormat() === 'gif' && $config['animated']) {
142			$options['animated'] = $config['animated'];
143			}
144
145			$filteredFormat = isset($config['format']) ? $config['format'] : $binary->getFormat();
146			$filteredContent = $image->get($filteredFormat, $options);
147			$filteredMimeType = $filteredFormat === $binary->getFormat() ? $binary->getMimeType() : $this->mimeTypeGuesser->guess($filteredContent);
148
149			// We are done with the image object so we can destruct the this because imagick keeps consuming memory if we don't
150			// See https://github.com/liip/LiipImagineBundle/pull/682
151			if (method_exists($image, '__destruct')) {
152			$image->__destruct();
153			}
154
155			return $this->applyPostProcessors(new Binary($filteredContent, $filteredMimeType, $filteredFormat), $config);
156			}
157
158			/**
159			* @param BinaryInterface $binary
160			* @param array $config
161			*
162			* @throws \InvalidArgumentException
163			*
164			* @return BinaryInterface
165			*/
166			public function applyPostProcessors(BinaryInterface $binary, $config)
167			{
168			$config += array('post_processors' => array());
169			foreach ($config['post_processors'] as $postProcessorName => $postProcessorOptions) {
170			if (!isset($this->postProcessors[$postProcessorName])) {
171			throw new \InvalidArgumentException(sprintf(
172			'Could not find post processor "%s"', $postProcessorName
173			));
174			}
175			$binary = $this->postProcessors[$postProcessorName]->process($binary);
176			}
177
178			return $binary;
179			}
180
181			/**
182			* Apply the provided filter set on the given binary.
183			*
184			* @param BinaryInterface $binary
185			* @param string $filter
186			* @param array $runtimeConfig
187			*
188			* @throws \InvalidArgumentException
189			*
190			* @return BinaryInterface
191			*/
192			public function applyFilter(BinaryInterface $binary, $filter, array $runtimeConfig = array())
193			{
194			$config = array_replace_recursive(
195			$this->getFilterConfiguration()->get($filter),
196			$runtimeConfig
197			);
198
199			return $this->apply($binary, $config);
200			}
201			}
202

liip / LiipImagineBundle

Push — master ( 0a7932...aee286 )

FilterManager::addLoader() A

Complexity

Size

Duplication

Importance

Available Fixes

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