FileAdapterStrategy::persistObject() - Code Metrics - Inspection of "Finished object deletion / undeletion" - apparat/object - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( b1b8bf...c9de9a )

by Joschi

created 2016-05-26 14:14 UTC

FileAdapterStrategy::persistObject() A

↳ Parent: FileAdapterStrategy

Complexity

Conditions	4
Paths	4

Size

Total Lines	18
Code Lines	8

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	9
CRAP Score	4

Importance

Changes	4
Bugs	0	Features	2

Metric	Value
cc	4
eloc	8
c	4
b	0
f	2
nc	4
nop	1
dl	0
loc	18
rs	9.2
ccs	9
cts	9
cp	1
crap	4

<?php

/**
 * apparat-object
 *
 * @category    Apparat
 * @package     Apparat\Object
 * @subpackage  Apparat\Object\Infrastructure
 * @author      Joschi Kuphal <[email protected]> / @jkphl
 * @copyright   Copyright © 2016 Joschi Kuphal <[email protected]> / @jkphl
 * @license     http://opensource.org/licenses/MIT The MIT License (MIT)
 */

/***********************************************************************************
 *  The MIT License (MIT)
 *
 *  Copyright © 2016 Joschi Kuphal <[email protected]> / @jkphl
 *
 *  Permission is hereby granted, free of charge, to any person obtaining a copy of
 *  this software and associated documentation files (the "Software"), to deal in
 *  the Software without restriction, including without limitation the rights to
 *  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 *  the Software, and to permit persons to whom the Software is furnished to do so,
 *  subject to the following conditions:
 *
 *  The above copyright notice and this permission notice shall be included in all
 *  copies or substantial portions of the Software.
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 *  FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 *  COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 *  IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 *  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 ***********************************************************************************/

namespace Apparat\Object\Infrastructure\Repository;

use Apparat\Kernel\Ports\Kernel;
use Apparat\Object\Application\Repository\AbstractAdapterStrategy;
use Apparat\Object\Domain\Model\Object\Id;
use Apparat\Object\Domain\Model\Object\ObjectInterface;
use Apparat\Object\Domain\Model\Object\ResourceInterface;
use Apparat\Object\Domain\Model\Object\Revision;
use Apparat\Object\Domain\Model\Path\PathInterface;
use Apparat\Object\Domain\Model\Path\RepositoryPath;
use Apparat\Object\Domain\Model\Path\RepositoryPathInterface;
use Apparat\Object\Domain\Repository\AdapterStrategyInterface;
use Apparat\Object\Domain\Repository\RepositoryInterface;
use Apparat\Object\Domain\Repository\RuntimeException;
.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php
use Apparat\Object\Domain\Repository\Selector;
use Apparat\Object\Domain\Repository\SelectorInterface;
use Apparat\Object\Infrastructure\Factory\ResourceFactory;
use Apparat\Object\Infrastructure\Repository\RuntimeException as RepositoryRuntimeException;
use Apparat\Resource\Infrastructure\Io\File\AbstractFileReaderWriter;
use Apparat\Resource\Infrastructure\Io\File\Writer;

/**
 * File adapter strategy
 *
 * @package Apparat\Object
 * @subpackage Apparat\Object\Infrastructure
 */
class FileAdapterStrategy extends AbstractAdapterStrategy
{
    /**
     * Adapter strategy type
     *
     * @var string
     */
    const TYPE = 'file';
    /**
     * Configuration
     *
     * @var array
     */
    protected $config = null;
    /**
     * Root directory (without trailing directory separator)
     *
     * @var string
     */
    protected $root = null;
    /**
     * Configuration directory (including trailing directory separator)
     *
     * @var string
     */
    protected $configDir = null;
    /**
     * Glob visibilities
     *
     * @var array
     */
    protected static $globVisibilities = [
        SelectorInterface::VISIBLE => '',
        SelectorInterface::HIDDEN => '.',
        SelectorInterface::ALL => '{.,}',
    ];

    /**
     * Adapter strategy constructor
     *
     * @param array $config Adapter strategy configuration
     * @throws InvalidArgumentException If the root directory configuration is empty
     * @throws InvalidArgumentException If the root directory configuration is invalid
     */
    public function __construct(array $config)
    {
        parent::__construct($config, ['root']);

        // If the root directory configuration is empty
        if (empty($this->config['root'])) {
            throw new InvalidArgumentException(
                'Empty file adapter strategy root',
                InvalidArgumentException::EMTPY_FILE_STRATEGY_ROOT
            );
        }

        // Get the real path of the root directory
        $this->root = realpath($this->config['root']);

        // If the repository should be initialized
        if (!empty($this->config['init'])
            && (boolean)$this->config['init']
            && $this->initializeRepository()
        ) {
            $this->root = realpath($this->config['root']);
        }

        // If the root directory configuration is still invalid
        if (empty($this->root) || !@is_dir($this->root)) {
            throw new InvalidArgumentException(
                sprintf(
                    'Invalid file adapter strategy root "%s"',
                    $this->config['root']
                ),
                InvalidArgumentException::INVALID_FILE_STRATEGY_ROOT
            );
        }

        $this->configDir = $this->root.DIRECTORY_SEPARATOR.'.repo'.DIRECTORY_SEPARATOR;
    }

    /**
     * Initialize the repository
     *
     * @return boolean Success
     * @throws RuntimeException If the repository cannot be initialized
     * @throws RuntimeException If the repository size descriptor can not be created
     */
    public function initializeRepository()
    {
        // Successively create the repository directories
        $repoDirectories = [$this->config['root'], $this->config['root'].DIRECTORY_SEPARATOR.'.repo'];
        foreach ($repoDirectories as $repoDirectory) {
            // If the repository cannot be initialized
            if (file_exists($repoDirectory) ? !is_dir($repoDirectory) : !mkdir($repoDirectory, 0777, true)) {
                throw new RuntimeException('Could not initialize repository', RuntimeException::REPO_NOT_INITIALIZED);
            }
        }

        // If the repository size descriptor can not be created
        $configDir = $this->config['root'].DIRECTORY_SEPARATOR.'.repo'.DIRECTORY_SEPARATOR;
        if ((file_exists($configDir.'size.txt') && !is_file($configDir.'size.txt'))
            || !file_put_contents($configDir.'size.txt', '0')
        ) {
            throw new RuntimeException(
                'Could not create repository size descriptor',
                RuntimeException::REPO_SIZE_DESCRIPTOR_NOT_CREATED
            );
        }

        return true;
    }

    /**
     * Find objects by selector
     *
     * @param Selector|SelectorInterface $selector Object selector
     * @param RepositoryInterface $repository Object repository
     * @return PathInterface[] Object paths
     */
    public function findObjectPaths(SelectorInterface $selector, RepositoryInterface $repository)
    {
        chdir($this->root);

        // Build a glob string from the selector
        $glob = '';
        $globFlags = GLOB_ONLYDIR | GLOB_NOSORT;

        $year = $selector->getYear();
        if ($year !== null) {
            $glob .= '/'.$year;
        }

        $month = $selector->getMonth();
        if ($month !== null) {
            $glob .= '/'.$month;
        }

        $day = $selector->getDay();
        if ($day !== null) {
            $glob .= '/'.$day;
        }

        $hour = $selector->getHour();
        if ($hour !== null) {
            $glob .= '/'.$hour;
        }

        $minute = $selector->getMinute();
        if ($minute !== null) {
            $glob .= '/'.$minute;
        }

        $second = $selector->getSecond();
        if ($second !== null) {
            $glob .= '/'.$second;
        }

        $visibility = $selector->getVisibility();
        $uid = $selector->getId();
        $type = $selector->getType();
        if (($uid !== null) || ($type !== null)) {
            $glob .= '/'.($uid ?: SelectorInterface::WILDCARD).'-'.($type ?: SelectorInterface::WILDCARD);

            $revision = $selector->getRevision();
            if ($revision !== null) {
                $glob .= '/'.self::$globVisibilities[$visibility].($uid ?: SelectorInterface::WILDCARD).'-'.$revision;
                $globFlags &= ~GLOB_ONLYDIR;
            }
        }

        return array_map(
            function ($objectPath) use ($repository) {
                return Kernel::create(RepositoryPath::class, [$repository, '/'.$objectPath]);
            },
            glob(ltrim($glob, '/'), $globFlags)
        );
    }

    /**
     * Test if an object resource exists
     *
     * @param string $resourcePath Repository relative resource path
     * @return boolean Object resource exists
     */
    public function hasObjectResource($resourcePath)
    {
//        echo 'testing '.$this->root.$resourcePath;
        return is_file($this->root.$resourcePath);
    }

    /**
     * Find and return an object resource
     *
     * @param string $resourcePath Repository relative resource path
     * @return ResourceInterface Object resource
     */
    public function getObjectResource($resourcePath)
    {
        return ResourceFactory::createFromSource(AbstractFileReaderWriter::WRAPPER.$this->root.$resourcePath);
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());
}
    }

    /**
     * Allocate an object ID and create an object resource
     *
     * @param \Closure $creator Object creation closure
     * @return ObjectInterface Object
     * @throws RuntimeException If no object could be created
     * @throws \Exception If another error occurs
     */
    public function createObjectResource(\Closure $creator)
    {
        $sizeDescriptor = null;

        try {
            // Open the size descriptor
            $sizeDescriptor = fopen($this->configDir.'size.txt', 'r+');

            // If a lock of the size descriptor can be acquired
            if (flock($sizeDescriptor, LOCK_EX)) {
                // Determine the current repository size
                $repositorySize = '';
                while (!feof($sizeDescriptor)) {
                    $repositorySize .= fread($sizeDescriptor, 8);
                }
                $repositorySize = intval(trim($repositorySize));

                // Instantiate the next consecutive object ID
                $nextObjectId = Kernel::create(Id::class, [++$repositorySize]);

                // Create & persist the object (bypassing the repository)
                $object = $creator($nextObjectId);
                $this->persistObject($object);

                // Dump the new repository size, unlock the size descriptor
                ftruncate($sizeDescriptor, 0);
                fwrite($sizeDescriptor, $repositorySize);
                fflush($sizeDescriptor);
                flock($sizeDescriptor, LOCK_UN);

                // Return the newly created object
                return $object;
            }

            // If no object could be created
            throw new RuntimeException(
                'The repository size descriptor is unlockable',
                RuntimeException::REPO_SIZE_DESCRIPTOR_UNLOCKABLE
            );

            // If any exception is thrown
        } catch (\Exception $e) {
            // Release the size descriptor lock
            if (is_resource($sizeDescriptor)) {
                flock($sizeDescriptor, LOCK_UN);
            }

            // Forward the thrown exception
            throw $e;
        }
    }

    /**
     * Persist an object in the repository
     *
     * @param ObjectInterface $object Object
     * @return AdapterStrategyInterface Self reference
     */
    public function persistObject(ObjectInterface $object)
    {
        // If the object has just been deleted
        if ($object->hasBeenDeleted()) {
            return $this->deleteObject($object);

            // Elseif the object has just been undeleted
        } elseif ($object->hasBeenUndeleted()) {
            return $this->undeleteObject($object);

            // If the object has just been published
        } elseif ($object->hasBeenPublished()) {
            $this->publishObject($object);
        }

        // Persist the object resource
        return $this->persistObjectResource($object);
    }

    /**
     * Publish an object in the repository
     *
     * @param ObjectInterface $object
     */
    protected function publishObject(ObjectInterface $object)
    {
        $objectRepositoryPath = $object->getRepositoryPath();

        // If the object had been persisted as a draft: Remove the draft resource
        $objectDraftPath = $objectRepositoryPath->setRevision($object->getRevision()->setDraft(true));
        $absObjectDraftPath = $this->absoluteResourcePath($objectDraftPath);
        if (@file_exists($absObjectDraftPath)) {
            unlink($absObjectDraftPath);
        }

        // If it's not the first object revision: Rotate the previous revision resource
        $objectRevisionNumber = $object->getRevision()->getRevision();
        if ($objectRevisionNumber > 1) {
            // Build the "current" object repository path
            $currentRevision = Revision::current();
            $curObjectResPath =
                $this->absoluteResourcePath($objectRepositoryPath->setRevision($currentRevision));

            // Build the previous object repository path
            /** @var Revision $previousRevision */
            $previousRevision = Kernel::create(Revision::class, [$objectRevisionNumber - 1]);
            $prevObjectResPath
                = $this->absoluteResourcePath($objectRepositoryPath->setRevision($previousRevision));

            // Rotate the previous revision's resource path
            if (file_exists($curObjectResPath)) {
                rename($curObjectResPath, $prevObjectResPath);
            }
        }
    }

    /**
     * Build an absolute repository resource path
     *
     * @param RepositoryPathInterface $repositoryPath Repository path
     * @return string Absolute repository resource path
     */
    protected function absoluteResourcePath(RepositoryPathInterface $repositoryPath)
    {
        return $this->root.str_replace(
            '/',
            DIRECTORY_SEPARATOR,
            $repositoryPath->withExtension(getenv('OBJECT_RESOURCE_EXTENSION'))
        );
    }

    /**
     * Persist an object resource in the repository
     *
     * @param ObjectInterface $object Object
     * @return AdapterStrategyInterface Self reference
     */
    protected function persistObjectResource(ObjectInterface $object)
    {
        /** @var \Apparat\Object\Infrastructure\Model\Object\Resource $objectResource */
        $objectResource = ResourceFactory::createFromObject($object);

        // Create the absolute object resource path
        $objectResourcePath = $this->absoluteResourcePath($object->getRepositoryPath());

        /** @var Writer $fileWriter */
        $fileWriter = Kernel::create(
            Writer::class,
            [$objectResourcePath, Writer::FILE_CREATE | Writer::FILE_CREATE_DIRS | Writer::FILE_OVERWRITE]
        );
        $objectResource->dump($fileWriter);

        return $this;
    }

    /**
     * Return the repository size (number of objects in the repository)
     *
     * @return int Repository size
     */
    public function getRepositorySize()
    {
        $sizeDescriptorFile = $this->configDir.'size.txt';
        $repositorySize = 0;
        if (is_file($sizeDescriptorFile) && is_readable($sizeDescriptorFile)) {
            $repositorySize = intval(file_get_contents($this->configDir.'size.txt'));
        }
        return $repositorySize;
    }

    /**
     * Delete all revisions of an object
     *
     * @param ObjectInterface $object Object
     * @return ObjectInterface Object
     */
    protected function deleteObject(ObjectInterface $object)
    {
        // Hide object directory
        $objectContainerDir = dirname(dirname($this->absoluteResourcePath($object->getRepositoryPath())));
        $objectContainerName = $object->getId()->getId().'-'.$object->getType()->getType();
        $objectPublicContainer = $objectContainerDir.DIRECTORY_SEPARATOR.$objectContainerName;
        $objectHiddenContainer = $objectContainerDir.DIRECTORY_SEPARATOR.'.'.$objectContainerName;
        if (file_exists($objectPublicContainer)
            && is_dir($objectPublicContainer)
            && !rename($objectPublicContainer, $objectHiddenContainer)
        ) {
            throw new RepositoryRuntimeException(
                sprintf('Cannot hide object container "%s"', $objectContainerName),
                RepositoryRuntimeException::CANNOT_HIDE_OBJECT_CONTAINER
            );
        }

        // Delete all object revisions
        /** @var ObjectInterface $objectRevision */
        foreach ($object as $objectRevision) {

            $this->persistObjectResource($objectRevision->delete());
        }

        return $this;
    }

    /**
     * Undelete all revisions of an object
     *
     * @param ObjectInterface $object Object
     * @return ObjectInterface Object
     */
    protected function undeleteObject(ObjectInterface $object)
    {
        // Hide object directory
        $objectContainerDir = dirname(dirname($this->absoluteResourcePath($object->getRepositoryPath())));
        $objectContainerName = $object->getId()->getId().'-'.$object->getType()->getType();
        $objectPublicContainer = $objectContainerDir.DIRECTORY_SEPARATOR.$objectContainerName;
        $objectHiddenContainer = $objectContainerDir.DIRECTORY_SEPARATOR.'.'.$objectContainerName;
        if (file_exists($objectHiddenContainer)
            && is_dir($objectHiddenContainer)
            && !rename($objectHiddenContainer, $objectPublicContainer)
        ) {
            throw new RepositoryRuntimeException(
                sprintf('Cannot unhide object container "%s"', $objectContainerName),
                RepositoryRuntimeException::CANNOT_UNHIDE_OBJECT_CONTAINER
            );
        }

        // Undelete all object revisions
        /** @var ObjectInterface $objectRevision */
        foreach ($object as $objectRevision) {

            $this->persistObjectResource($objectRevision->undelete());
        }

        return $this;
    }
}


1		<?php
2
3		/**
4		* apparat-object
5		*
6		* @category Apparat
7		* @package Apparat\Object
8		* @subpackage Apparat\Object\Infrastructure
9		* @author Joschi Kuphal <[email protected]> / @jkphl
10		* @copyright Copyright © 2016 Joschi Kuphal <[email protected]> / @jkphl
11		* @license http://opensource.org/licenses/MIT The MIT License (MIT)
12		*/
13
14		/***********************************************************************************
15		* The MIT License (MIT)
16		*
17		* Copyright © 2016 Joschi Kuphal <[email protected]> / @jkphl
18		*
19		* Permission is hereby granted, free of charge, to any person obtaining a copy of
20		* this software and associated documentation files (the "Software"), to deal in
21		* the Software without restriction, including without limitation the rights to
22		* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
23		* the Software, and to permit persons to whom the Software is furnished to do so,
24		* subject to the following conditions:
25		*
26		* The above copyright notice and this permission notice shall be included in all
27		* copies or substantial portions of the Software.
28		*
29		* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
30		* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
31		* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
32		* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
33		* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
34		* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35		***********************************************************************************/
36
37		namespace Apparat\Object\Infrastructure\Repository;
38
39		use Apparat\Kernel\Ports\Kernel;
40		use Apparat\Object\Application\Repository\AbstractAdapterStrategy;
41		use Apparat\Object\Domain\Model\Object\Id;
42		use Apparat\Object\Domain\Model\Object\ObjectInterface;
43		use Apparat\Object\Domain\Model\Object\ResourceInterface;
44		use Apparat\Object\Domain\Model\Object\Revision;
45		use Apparat\Object\Domain\Model\Path\PathInterface;
46		use Apparat\Object\Domain\Model\Path\RepositoryPath;
47		use Apparat\Object\Domain\Model\Path\RepositoryPathInterface;
48		use Apparat\Object\Domain\Repository\AdapterStrategyInterface;
49		use Apparat\Object\Domain\Repository\RepositoryInterface;
50		use Apparat\Object\Domain\Repository\RuntimeException;
		0 ignored issues – show Bug introduced 2016-05-26 14:17 UTC by Report Bug Copy Issue Report This use statement conflicts with another class in this namespace, `Apparat\Object\Infrastru...sitory\RuntimeException`. Let’s assume that you have a directory layout like this: . \|-- OtherDir \| \|-- Bar.php \| `-- Foo.php `-- SomeDir `-- Foo.php and let’s assume the following content of `Bar.php`: // Bar.php namespace OtherDir; use SomeDir\Foo; // This now conflicts the class OtherDir\Foo If both files `OtherDir/Foo.php` and `SomeDir/Foo.php` are loaded in the same runtime, you will see a PHP error such as the following: PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php However, as `OtherDir/Foo.php` does not necessarily have to be loaded and the error is only triggered if it is loaded before `OtherDir/Bar.php`, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: // Bar.php namespace OtherDir; use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore. Loading history...
51		use Apparat\Object\Domain\Repository\Selector;
52		use Apparat\Object\Domain\Repository\SelectorInterface;
53		use Apparat\Object\Infrastructure\Factory\ResourceFactory;
54		use Apparat\Object\Infrastructure\Repository\RuntimeException as RepositoryRuntimeException;
55		use Apparat\Resource\Infrastructure\Io\File\AbstractFileReaderWriter;
56		use Apparat\Resource\Infrastructure\Io\File\Writer;
57
58		/**
59		* File adapter strategy
60		*
61		* @package Apparat\Object
62		* @subpackage Apparat\Object\Infrastructure
63		*/
64		class FileAdapterStrategy extends AbstractAdapterStrategy
65		{
66		/**
67		* Adapter strategy type
68		*
69		* @var string
70		*/
71		const TYPE = 'file';
72		/**
73		* Configuration
74		*
75		* @var array
76		*/
77		protected $config = null;
78		/**
79		* Root directory (without trailing directory separator)
80		*
81		* @var string
82		*/
83		protected $root = null;
84		/**
85		* Configuration directory (including trailing directory separator)
86		*
87		* @var string
88		*/
89		protected $configDir = null;
90		/**
91		* Glob visibilities
92		*
93		* @var array
94		*/
95		protected static $globVisibilities = [
96		SelectorInterface::VISIBLE => '',
97		SelectorInterface::HIDDEN => '.',
98		SelectorInterface::ALL => '{.,}',
99		];
100
101		/**
102		* Adapter strategy constructor
103		*
104		* @param array $config Adapter strategy configuration
105		* @throws InvalidArgumentException If the root directory configuration is empty
106		* @throws InvalidArgumentException If the root directory configuration is invalid
107		*/
108	19	public function __construct(array $config)
109		{
110	19	parent::__construct($config, ['root']);
111
112		// If the root directory configuration is empty
113	18	if (empty($this->config['root'])) {
114	1	throw new InvalidArgumentException(
115	1	'Empty file adapter strategy root',
116		InvalidArgumentException::EMTPY_FILE_STRATEGY_ROOT
117	1	);
118		}
119
120		// Get the real path of the root directory
121	17	$this->root = realpath($this->config['root']);
122
123		// If the repository should be initialized
124	17	if (!empty($this->config['init'])
125	17	&& (boolean)$this->config['init']
126	17	&& $this->initializeRepository()
127	15	) {
128	5	$this->root = realpath($this->config['root']);
129	5	}
130
131		// If the root directory configuration is still invalid
132	15	if (empty($this->root) \|\| !@is_dir($this->root)) {
133	1	throw new InvalidArgumentException(
134	1	sprintf(
135	1	'Invalid file adapter strategy root "%s"',
136	1	$this->config['root']
137	1	),
138		InvalidArgumentException::INVALID_FILE_STRATEGY_ROOT
139	1	);
140		}
141
142	14	$this->configDir = $this->root.DIRECTORY_SEPARATOR.'.repo'.DIRECTORY_SEPARATOR;
143	14	}
144
145		/**
146		* Initialize the repository
147		*
148		* @return boolean Success
149		* @throws RuntimeException If the repository cannot be initialized
150		* @throws RuntimeException If the repository size descriptor can not be created
151		*/
152	7	public function initializeRepository()
153		{
154		// Successively create the repository directories
155	7	$repoDirectories = [$this->config['root'], $this->config['root'].DIRECTORY_SEPARATOR.'.repo'];
156	7	foreach ($repoDirectories as $repoDirectory) {
157		// If the repository cannot be initialized
158	7	if (file_exists($repoDirectory) ? !is_dir($repoDirectory) : !mkdir($repoDirectory, 0777, true)) {
159	1	throw new RuntimeException('Could not initialize repository', RuntimeException::REPO_NOT_INITIALIZED);
160		}
161	6	}
162
163		// If the repository size descriptor can not be created
164	6	$configDir = $this->config['root'].DIRECTORY_SEPARATOR.'.repo'.DIRECTORY_SEPARATOR;
165	6	if ((file_exists($configDir.'size.txt') && !is_file($configDir.'size.txt'))
166	5	\|\| !file_put_contents($configDir.'size.txt', '0')
167	6	) {
168	1	throw new RuntimeException(
169	1	'Could not create repository size descriptor',
170		RuntimeException::REPO_SIZE_DESCRIPTOR_NOT_CREATED
171	1	);
172		}
173
174	5	return true;
175		}
176
177		/**
178		* Find objects by selector
179		*
180		* @param Selector\|SelectorInterface $selector Object selector
181		* @param RepositoryInterface $repository Object repository
182		* @return PathInterface[] Object paths
183		*/
184	7	public function findObjectPaths(SelectorInterface $selector, RepositoryInterface $repository)
185		{
186	7	chdir($this->root);
187
188		// Build a glob string from the selector
189	7	$glob = '';
190	7	$globFlags = GLOB_ONLYDIR \| GLOB_NOSORT;
191
192	7	$year = $selector->getYear();
193	7	if ($year !== null) {
194	7	$glob .= '/'.$year;
195	7	}
196
197	7	$month = $selector->getMonth();
198	7	if ($month !== null) {
199	7	$glob .= '/'.$month;
200	7	}
201
202	7	$day = $selector->getDay();
203	7	if ($day !== null) {
204	7	$glob .= '/'.$day;
205	7	}
206
207	7	$hour = $selector->getHour();
208	7	if ($hour !== null) {
209	2	$glob .= '/'.$hour;
210	2	}
211
212	7	$minute = $selector->getMinute();
213	7	if ($minute !== null) {
214	2	$glob .= '/'.$minute;
215	2	}
216
217	7	$second = $selector->getSecond();
218	7	if ($second !== null) {
219	2	$glob .= '/'.$second;
220	2	}
221
222	7	$visibility = $selector->getVisibility();
223	7	$uid = $selector->getId();
224	7	$type = $selector->getType();
225	7	if (($uid !== null) \|\| ($type !== null)) {
226	7	$glob .= '/'.($uid ?: SelectorInterface::WILDCARD).'-'.($type ?: SelectorInterface::WILDCARD);
227
228	7	$revision = $selector->getRevision();
229	7	if ($revision !== null) {
230	1	$glob .= '/'.self::$globVisibilities[$visibility].($uid ?: SelectorInterface::WILDCARD).'-'.$revision;
231	1	$globFlags &= ~GLOB_ONLYDIR;
232	1	}
233	7	}
234
235	7	return array_map(
236	7	function ($objectPath) use ($repository) {
237	7	return Kernel::create(RepositoryPath::class, [$repository, '/'.$objectPath]);
238	7	},
239	7	glob(ltrim($glob, '/'), $globFlags)
240	7	);
241		}
242
243		/**
244		* Test if an object resource exists
245		*
246		* @param string $resourcePath Repository relative resource path
247		* @return boolean Object resource exists
248		*/
249		public function hasObjectResource($resourcePath)
250		{
251		// echo 'testing '.$this->root.$resourcePath;
252		return is_file($this->root.$resourcePath);
253		}
254
255		/**
256		* Find and return an object resource
257		*
258		* @param string $resourcePath Repository relative resource path
259		* @return ResourceInterface Object resource
260		*/
261	26	public function getObjectResource($resourcePath)
262		{
263	26	return ResourceFactory::createFromSource(AbstractFileReaderWriter::WRAPPER.$this->root.$resourcePath);
		0 ignored issues – show Bug Best Practice introduced 2016-04-23 23:17 UTC by Report Bug Copy Issue Report The return type of `return \Apparat\Object\I...>root . $resourcePath);` (`Apparat\Resource\Domain\...source\AbstractResource`) is incompatible with the return type declared by the interface `Apparat\Object\Applicati...face::getObjectResource` of type `Apparat\Object\Domain\Mo...bject\ResourceInterface`. 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...
264		}
265
266		/**
267		* Allocate an object ID and create an object resource
268		*
269		* @param \Closure $creator Object creation closure
270		* @return ObjectInterface Object
271		* @throws RuntimeException If no object could be created
272		* @throws \Exception If another error occurs
273		*/
274	4	public function createObjectResource(\Closure $creator)
275		{
276	4	$sizeDescriptor = null;
277
278		try {
279		// Open the size descriptor
280	4	$sizeDescriptor = fopen($this->configDir.'size.txt', 'r+');
281
282		// If a lock of the size descriptor can be acquired
283	4	if (flock($sizeDescriptor, LOCK_EX)) {
284		// Determine the current repository size
285	3	$repositorySize = '';
286	3	while (!feof($sizeDescriptor)) {
287	3	$repositorySize .= fread($sizeDescriptor, 8);
288	3	}
289	3	$repositorySize = intval(trim($repositorySize));
290
291		// Instantiate the next consecutive object ID
292	3	$nextObjectId = Kernel::create(Id::class, [++$repositorySize]);
293
294		// Create & persist the object (bypassing the repository)
295	3	$object = $creator($nextObjectId);
296	3	$this->persistObject($object);
297
298		// Dump the new repository size, unlock the size descriptor
299	3	ftruncate($sizeDescriptor, 0);
300	3	fwrite($sizeDescriptor, $repositorySize);
301	3	fflush($sizeDescriptor);
302	3	flock($sizeDescriptor, LOCK_UN);
303
304		// Return the newly created object
305	3	return $object;
306		}
307
308		// If no object could be created
309	1	throw new RuntimeException(
310	1	'The repository size descriptor is unlockable',
311		RuntimeException::REPO_SIZE_DESCRIPTOR_UNLOCKABLE
312	1	);
313
314		// If any exception is thrown
315	1	} catch (\Exception $e) {
316		// Release the size descriptor lock
317	1	if (is_resource($sizeDescriptor)) {
318	1	flock($sizeDescriptor, LOCK_UN);
319	1	}
320
321		// Forward the thrown exception
322	1	throw $e;
323		}
324		}
325
326		/**
327		* Persist an object in the repository
328		*
329		* @param ObjectInterface $object Object
330		* @return AdapterStrategyInterface Self reference
331		*/
332	3	public function persistObject(ObjectInterface $object)
333		{
334		// If the object has just been deleted
335	3	if ($object->hasBeenDeleted()) {
336	3	return $this->deleteObject($object);
337
338		// Elseif the object has just been undeleted
339	3	} elseif ($object->hasBeenUndeleted()) {
340	2	return $this->undeleteObject($object);
341
342		// If the object has just been published
343	3	} elseif ($object->hasBeenPublished()) {
344	1	$this->publishObject($object);
345	1	}
346
347		// Persist the object resource
348	3	return $this->persistObjectResource($object);
349		}
350
351		/**
352		* Publish an object in the repository
353		*
354		* @param ObjectInterface $object
355		*/
356	1	protected function publishObject(ObjectInterface $object)
357		{
358	1	$objectRepositoryPath = $object->getRepositoryPath();
359
360		// If the object had been persisted as a draft: Remove the draft resource
361	1	$objectDraftPath = $objectRepositoryPath->setRevision($object->getRevision()->setDraft(true));
362	1	$absObjectDraftPath = $this->absoluteResourcePath($objectDraftPath);
363	1	if (@file_exists($absObjectDraftPath)) {
364	1	unlink($absObjectDraftPath);
365	1	}
366
367		// If it's not the first object revision: Rotate the previous revision resource
368	1	$objectRevisionNumber = $object->getRevision()->getRevision();
369	1	if ($objectRevisionNumber > 1) {
370		// Build the "current" object repository path
371	1	$currentRevision = Revision::current();
372		$curObjectResPath =
373	1	$this->absoluteResourcePath($objectRepositoryPath->setRevision($currentRevision));
374
375		// Build the previous object repository path
376		/** @var Revision $previousRevision */
377	1	$previousRevision = Kernel::create(Revision::class, [$objectRevisionNumber - 1]);
378		$prevObjectResPath
379	1	= $this->absoluteResourcePath($objectRepositoryPath->setRevision($previousRevision));
380
381		// Rotate the previous revision's resource path
382	1	if (file_exists($curObjectResPath)) {
383	1	rename($curObjectResPath, $prevObjectResPath);
384	1	}
385	1	}
386	1	}
387
388		/**
389		* Build an absolute repository resource path
390		*
391		* @param RepositoryPathInterface $repositoryPath Repository path
392		* @return string Absolute repository resource path
393		*/
394	3	protected function absoluteResourcePath(RepositoryPathInterface $repositoryPath)
395		{
396	3	return $this->root.str_replace(
397	3	'/',
398	3	DIRECTORY_SEPARATOR,
399	3	$repositoryPath->withExtension(getenv('OBJECT_RESOURCE_EXTENSION'))
400	3	);
401		}
402
403		/**
404		* Persist an object resource in the repository
405		*
406		* @param ObjectInterface $object Object
407		* @return AdapterStrategyInterface Self reference
408		*/
409	3	protected function persistObjectResource(ObjectInterface $object)
410		{
411		/** @var \Apparat\Object\Infrastructure\Model\Object\Resource $objectResource */
412	3	$objectResource = ResourceFactory::createFromObject($object);
413
414		// Create the absolute object resource path
415	3	$objectResourcePath = $this->absoluteResourcePath($object->getRepositoryPath());
416
417		/** @var Writer $fileWriter */
418	3	$fileWriter = Kernel::create(
419	3	Writer::class,
420	3	[$objectResourcePath, Writer::FILE_CREATE \| Writer::FILE_CREATE_DIRS \| Writer::FILE_OVERWRITE]
421	3	);
422	3	$objectResource->dump($fileWriter);
423
424	3	return $this;
425		}
426
427		/**
428		* Return the repository size (number of objects in the repository)
429		*
430		* @return int Repository size
431		*/
432	4	public function getRepositorySize()
433		{
434	4	$sizeDescriptorFile = $this->configDir.'size.txt';
435	4	$repositorySize = 0;
436	4	if (is_file($sizeDescriptorFile) && is_readable($sizeDescriptorFile)) {
437	4	$repositorySize = intval(file_get_contents($this->configDir.'size.txt'));
438	4	}
439	4	return $repositorySize;
440		}
441
442		/**
443		* Delete all revisions of an object
444		*
445		* @param ObjectInterface $object Object
446		* @return ObjectInterface Object
447		*/
448	3	protected function deleteObject(ObjectInterface $object)
449		{
450		// Hide object directory
451	3	$objectContainerDir = dirname(dirname($this->absoluteResourcePath($object->getRepositoryPath())));
452	3	$objectContainerName = $object->getId()->getId().'-'.$object->getType()->getType();
453	3	$objectPublicContainer = $objectContainerDir.DIRECTORY_SEPARATOR.$objectContainerName;
454	3	$objectHiddenContainer = $objectContainerDir.DIRECTORY_SEPARATOR.'.'.$objectContainerName;
455	3	if (file_exists($objectPublicContainer)
456	3	&& is_dir($objectPublicContainer)
457	3	&& !rename($objectPublicContainer, $objectHiddenContainer)
458	3	) {
459	1	throw new RepositoryRuntimeException(
460	1	sprintf('Cannot hide object container "%s"', $objectContainerName),
461		RepositoryRuntimeException::CANNOT_HIDE_OBJECT_CONTAINER
462	1	);
463		}
464
465		// Delete all object revisions
466		/** @var ObjectInterface $objectRevision */
467	2	foreach ($object as $objectRevision) {
		0 ignored issues – show Bug introduced 2016-05-19 21:47 UTC by Report Bug Copy Issue Report The expression `$object` of type `object<Apparat\Object\Do...Object\ObjectInterface>` is not traversable. Loading history...
468	2	$this->persistObjectResource($objectRevision->delete());
469	2	}
470
471	2	return $this;
472		}
473
474		/**
475		* Undelete all revisions of an object
476		*
477		* @param ObjectInterface $object Object
478		* @return ObjectInterface Object
479		*/
480	2	protected function undeleteObject(ObjectInterface $object)
481		{
482		// Hide object directory
483	2	$objectContainerDir = dirname(dirname($this->absoluteResourcePath($object->getRepositoryPath())));
484	2	$objectContainerName = $object->getId()->getId().'-'.$object->getType()->getType();
485	2	$objectPublicContainer = $objectContainerDir.DIRECTORY_SEPARATOR.$objectContainerName;
486	2	$objectHiddenContainer = $objectContainerDir.DIRECTORY_SEPARATOR.'.'.$objectContainerName;
487	2	if (file_exists($objectHiddenContainer)
488	2	&& is_dir($objectHiddenContainer)
489	2	&& !rename($objectHiddenContainer, $objectPublicContainer)
490	2	) {
491	1	throw new RepositoryRuntimeException(
492	1	sprintf('Cannot unhide object container "%s"', $objectContainerName),
493		RepositoryRuntimeException::CANNOT_UNHIDE_OBJECT_CONTAINER
494	1	);
495		}
496
497		// Undelete all object revisions
498		/** @var ObjectInterface $objectRevision */
499	1	foreach ($object as $objectRevision) {
		0 ignored issues – show Bug introduced 2016-05-24 21:22 UTC by Report Bug Copy Issue Report The expression `$object` of type `object<Apparat\Object\Do...Object\ObjectInterface>` is not traversable. Loading history...
500	1	$this->persistObjectResource($objectRevision->undelete());
501	1	}
502
503	1	return $this;
504		}
505		}
506

apparat / object

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