YamlReader::readFromCache() - Code Metrics - Inspection of "added a caching mechanism for the parsing of the C..." - philiplb/CRUDlex - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 97569c...236d2a )

by Philip

created 2017-04-19 12:00 UTC

YamlReader::readFromCache() A

↳ Parent: YamlReader

Complexity

Conditions	4
Paths	3

Size

Total Lines	10
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
dl	0
loc	10
rs	9.2
c	1
b	0
f	1
cc	4
eloc	7
nc	3
nop	1

<?php

/*
 * This file is part of the CRUDlex package.
 *
 * (c) Philip Lehmann-Böhm <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace CRUDlex;

use Symfony\Component\Yaml\Yaml;

/**
 * Reads Yaml files and caches them if a writable path is given. The cache is used first on the next read.
 * It is a simple PHP class internally.
 */
class YamlReader {

    /**
     * The path for the cache files.
     */
    protected $cachePath;

    /**
     * Gets an absolute path for a cache file.
     *
     * @param string $fileName
     * the file to cache
     * @return string
     * the absolute path of the cache file
     */
    protected function getCacheFile($fileName) {
        return $this->cachePath.'/'.basename($fileName).'CRUDlexCache.php';
    }

    /**
     * Reads the content of the cached file if it exists.
     *
     * @param string $fileName
     * the cache file to read from
     * @return null|array
     * the cached data structure or null if the cache file was not available
     */
    protected function readFromCache($fileName) {
        $cacheFile = $this->getCacheFile($fileName);
        if (file_exists($cacheFile) && is_readable($cacheFile)) {
            include($cacheFile);
            if (isset($crudlexCacheContent)) {

                return $crudlexCacheContent;
            }
        }
        return null;
    }

    /**
     * Writes the given content to a cached PHP file.
     *
     * @param string $fileName
     * the original filename
     * @param array $content
     * the content to cache
     */
    protected function writeToCache($fileName, $content) {
        if ($this->cachePath === null || !is_dir($this->cachePath) || !is_writable($this->cachePath)) {
            return;
        }
        $encoder    = new \Riimu\Kit\PHPEncoder\PHPEncoder();
        $contentPHP = $encoder->encode($content, [
            'whitespace' => false,
            'recursion.detect' => false
        ]);
        $cache = '<?php $crudlexCacheContent = '.$contentPHP.';';
$a = "a";
$ab = "ab";
$abc = "abc";
        file_put_contents($this->getCacheFile($fileName), $cache);
    }

    /**
     * YamlReader constructor.
     * @param string|null $cachePath
     * if given, the path for the cache files which should be a writable directory
     */
    public function __construct($cachePath) {
        $this->cachePath = $cachePath;
    }

    /**
     * Reads and returns the contents of the given Yaml file. If
     * it goes wrong, it throws an exception.
     *
     * @param string $fileName
     * the file to read
     *
     * @return array
     * the file contents
     *
     * @throws \RuntimeException
     * thrown if the file could not be read or parsed
     */
    public function read($fileName) {

        $parsedYaml = $this->readFromCache($fileName);
        if ($parsedYaml !== null) {
            return $parsedYaml;
        }

        try {
            $fileContent = file_get_contents($fileName);
            $parsedYaml  = Yaml::parse($fileContent);
            if (!is_array($parsedYaml)) {
                $parsedYaml = [];
            }
            $this->writeToCache($fileName, $parsedYaml);
            return $parsedYaml;
        } catch (\Exception $e) {
            throw new \RuntimeException('Could not read Yaml file '.$fileName, $e->getCode(), $e);
        }
    }

}


1			<?php
2
3			/*
4			* This file is part of the CRUDlex package.
5			*
6			* (c) Philip Lehmann-Böhm <[email protected]>
7			*
8			* For the full copyright and license information, please view the LICENSE
9			* file that was distributed with this source code.
10			*/
11
12			namespace CRUDlex;
13
14			use Symfony\Component\Yaml\Yaml;
15
16			/**
17			* Reads Yaml files and caches them if a writable path is given. The cache is used first on the next read.
18			* It is a simple PHP class internally.
19			*/
20			class YamlReader {
21
22			/**
23			* The path for the cache files.
24			*/
25			protected $cachePath;
26
27			/**
28			* Gets an absolute path for a cache file.
29			*
30			* @param string $fileName
31			* the file to cache
32			* @return string
33			* the absolute path of the cache file
34			*/
35			protected function getCacheFile($fileName) {
36			return $this->cachePath.'/'.basename($fileName).'CRUDlexCache.php';
37			}
38
39			/**
40			* Reads the content of the cached file if it exists.
41			*
42			* @param string $fileName
43			* the cache file to read from
44			* @return null\|array
45			* the cached data structure or null if the cache file was not available
46			*/
47			protected function readFromCache($fileName) {
48			$cacheFile = $this->getCacheFile($fileName);
49			if (file_exists($cacheFile) && is_readable($cacheFile)) {
50			include($cacheFile);
51			if (isset($crudlexCacheContent)) {
			1 ignored issue – show Bug introduced 2017-04-19 12:07 UTC by Report Bug Copy Issue Report The variable `$crudlexCacheContent` seems to never exist, and therefore `isset` should always return `false`. Did you maybe rename this variable? This check looks for calls to `isset(...)` or `empty()` on variables that are yet undefined. These calls will always produce the same result and can be removed. This is most likely caused by the renaming of a variable or the removal of a function/method parameter. Loading history...
52			return $crudlexCacheContent;
53			}
54			}
55			return null;
56			}
57
58			/**
59			* Writes the given content to a cached PHP file.
60			*
61			* @param string $fileName
62			* the original filename
63			* @param array $content
64			* the content to cache
65			*/
66			protected function writeToCache($fileName, $content) {
67			if ($this->cachePath === null \|\| !is_dir($this->cachePath) \|\| !is_writable($this->cachePath)) {
68			return;
69			}
70			$encoder = new \Riimu\Kit\PHPEncoder\PHPEncoder();
71			$contentPHP = $encoder->encode($content, [
72			'whitespace' => false,
73			'recursion.detect' => false
74			]);
75			$cache = '<?php $crudlexCacheContent = '.$contentPHP.';';
			0 ignored issues – show Coding Style introduced 2017-04-19 12:07 UTC by Report Bug Copy Issue Report Equals sign not aligned with surrounding assignments; expected 6 spaces but found 1 space This check looks for multiple assignments in successive lines of code. It will report an issue if the operators are not in a straight line. To visualize $a = "a"; $ab = "ab"; $abc = "abc"; will produce issues in the first and second line, while this second example $a = "a"; $ab = "ab"; $abc = "abc"; will produce no issues. Loading history...
76			file_put_contents($this->getCacheFile($fileName), $cache);
77			}
78
79			/**
80			* YamlReader constructor.
81			* @param string\|null $cachePath
82			* if given, the path for the cache files which should be a writable directory
83			*/
84			public function __construct($cachePath) {
85			$this->cachePath = $cachePath;
86			}
87
88			/**
89			* Reads and returns the contents of the given Yaml file. If
90			* it goes wrong, it throws an exception.
91			*
92			* @param string $fileName
93			* the file to read
94			*
95			* @return array
96			* the file contents
97			*
98			* @throws \RuntimeException
99			* thrown if the file could not be read or parsed
100			*/
101			public function read($fileName) {
102
103			$parsedYaml = $this->readFromCache($fileName);
104			if ($parsedYaml !== null) {
105			return $parsedYaml;
106			}
107
108			try {
109			$fileContent = file_get_contents($fileName);
110			$parsedYaml = Yaml::parse($fileContent);
111			if (!is_array($parsedYaml)) {
112			$parsedYaml = [];
113			}
114			$this->writeToCache($fileName, $parsedYaml);
115			return $parsedYaml;
116			} catch (\Exception $e) {
117			throw new \RuntimeException('Could not read Yaml file '.$fileName, $e->getCode(), $e);
118			}
119			}
120
121			}
122

philiplb / CRUDlex

Push — master ( 97569c...236d2a )

YamlReader::readFromCache() A

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