Definition::loadConfig() - Code Metrics - Inspection of "2.0" - byjg/config - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#1)

by Joao

created 2017-08-09 22:47 UTC

Definition::loadConfig() A

↳ Parent: Definition

Complexity

Conditions	3
Paths	4

Size

Total Lines	19
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	19
rs	9.4285
c	0
b	0
f	0
cc	3
eloc	11
nc	4
nop	2

<?php
/**
 * User: jg
 * Date: 26/05/17
 * Time: 00:56
 */

namespace ByJG\Config;

use ByJG\Config\Exception\NotFoundException;
use Psr\SimpleCache\CacheInterface;

class Definition
{
    private $lastEnv = null;

    private $environments = [];

    private $envVar = 'APPLICATION_ENV';

    /**
     * @var CacheInterface[]
     */
    private $cache = [];

    /**
     * @var \DateInterval[]
     */
    private $cacheTTL = [];

    private function loadConfig($currentConfig, $env)
    {
        $file = __DIR__ . '/../../../../config/config-' . $env .  '.php';

        if (!file_exists($file)) {
            $file = __DIR__ . '/../config/config-' . $env .  '.php';
        }

        if (!file_exists($file)) {
            throw new NotFoundException(
                "The config file '"
                . "config-$env.php'"
                . 'does not found'
            );
        }

        $config = (include $file);
        return array_merge($config, $currentConfig);
    }

    public function setCache(CacheInterface $cache, $env = "live")
    {
        $this->cache[$env] = $cache;
        $this->cacheTTL[$env] = new \DateInterval('P7D');
        return $this;
    }

    public function setCacheTTL(\DateInterval $ttl, $env = "live")
    {
        if (!isset($this->cache[$env])) {
            throw new \Exception('Environment does not exists. Could not set Cache TTL.');
        }

        $this->cacheTTL[$env] = $ttl;
    }

    public function addEnvironment($env)
    {
        if (isset($this->environments[$env])) {
            throw new \InvalidArgumentException("Environment '$env' already exists");
        }
        $this->lastEnv = $env;
        $this->environments[$env] = [];
        return $this;
    }

    public function inheritFrom($env)
    {
        $this->environments[$this->lastEnv][] = $env;
        return $this;
    }

    public function environmentVar($var)
    {
        $this->envVar = $var;
    }

    public function getCurrentEnv()
    {
        $env = getenv($this->envVar);
        if (empty($env)) {
            throw new \InvalidArgumentException("The environment variable '$this->envVar' is not set");
        }
        return  $env;
    }

    /**
     * @param string|null $env
     * @return \ByJG\Config\Container
     */
    public function build($env = null)
    {
        if (empty($env)) {
            $env = $this->getCurrentEnv();
        }

        if (!isset($this->environments[$env])) {
            throw new \InvalidArgumentException("Environment '$env' does not defined");
        }

        $container = null;
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
        if (isset($this->cache[$env])) {
            $container = $this->cache[$env]->get("container-cache-$env");
            if (!is_null($container)) {
                return $container;
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());
}
            }
        }

        $config = [];
        $config = $this->loadConfig($config, $env);
        foreach ($this->environments[$env] as $environment) {
            $config = $this->loadConfig($config, $environment);
        }

        $container = new Container($config);
        if (isset($this->cache[$env])) {
            $this->cache[$env]->set("container-cache-$env", $container, $this->cacheTTL[$env]);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        }
        return $container;
    }
}


1			<?php
2			/**
3			* User: jg
4			* Date: 26/05/17
5			* Time: 00:56
6			*/
7
8			namespace ByJG\Config;
9
10			use ByJG\Config\Exception\NotFoundException;
11			use Psr\SimpleCache\CacheInterface;
12
13			class Definition
14			{
15			private $lastEnv = null;
16
17			private $environments = [];
18
19			private $envVar = 'APPLICATION_ENV';
20
21			/**
22			* @var CacheInterface[]
23			*/
24			private $cache = [];
25
26			/**
27			* @var \DateInterval[]
28			*/
29			private $cacheTTL = [];
30
31			private function loadConfig($currentConfig, $env)
32			{
33			$file = __DIR__ . '/../../../../config/config-' . $env . '.php';
34
35			if (!file_exists($file)) {
36			$file = __DIR__ . '/../config/config-' . $env . '.php';
37			}
38
39			if (!file_exists($file)) {
40			throw new NotFoundException(
41			"The config file '"
42			. "config-$env.php'"
43			. 'does not found'
44			);
45			}
46
47			$config = (include $file);
48			return array_merge($config, $currentConfig);
49			}
50
51			public function setCache(CacheInterface $cache, $env = "live")
52			{
53			$this->cache[$env] = $cache;
54			$this->cacheTTL[$env] = new \DateInterval('P7D');
55			return $this;
56			}
57
58			public function setCacheTTL(\DateInterval $ttl, $env = "live")
59			{
60			if (!isset($this->cache[$env])) {
61			throw new \Exception('Environment does not exists. Could not set Cache TTL.');
62			}
63
64			$this->cacheTTL[$env] = $ttl;
65			}
66
67			public function addEnvironment($env)
68			{
69			if (isset($this->environments[$env])) {
70			throw new \InvalidArgumentException("Environment '$env' already exists");
71			}
72			$this->lastEnv = $env;
73			$this->environments[$env] = [];
74			return $this;
75			}
76
77			public function inheritFrom($env)
78			{
79			$this->environments[$this->lastEnv][] = $env;
80			return $this;
81			}
82
83			public function environmentVar($var)
84			{
85			$this->envVar = $var;
86			}
87
88			public function getCurrentEnv()
89			{
90			$env = getenv($this->envVar);
91			if (empty($env)) {
92			throw new \InvalidArgumentException("The environment variable '$this->envVar' is not set");
93			}
94			return $env;
95			}
96
97			/**
98			* @param string\|null $env
99			* @return \ByJG\Config\Container
100			*/
101			public function build($env = null)
102			{
103			if (empty($env)) {
104			$env = $this->getCurrentEnv();
105			}
106
107			if (!isset($this->environments[$env])) {
108			throw new \InvalidArgumentException("Environment '$env' does not defined");
109			}
110
111			$container = null;
			0 ignored issues – show Unused Code introduced 2017-08-09 22:49 UTC by Report Bug Copy Issue Report `$container` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
112			if (isset($this->cache[$env])) {
113			$container = $this->cache[$env]->get("container-cache-$env");
114			if (!is_null($container)) {
115			return $container;
			0 ignored issues – show Bug Best Practice introduced 2017-08-09 22:49 UTC by Report Bug Copy Issue Report The return type of `return $container;` (`object\|integer\|double\|string\|array\|boolean`) is incompatible with the return type documented by `ByJG\Config\Definition::build` of type `ByJG\Config\Container`. 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...
116			}
117			}
118
119			$config = [];
120			$config = $this->loadConfig($config, $env);
121			foreach ($this->environments[$env] as $environment) {
122			$config = $this->loadConfig($config, $environment);
123			}
124
125			$container = new Container($config);
126			if (isset($this->cache[$env])) {
127			$this->cache[$env]->set("container-cache-$env", $container, $this->cacheTTL[$env]);
			0 ignored issues – show Documentation introduced 2017-08-09 22:49 UTC by Report Bug Copy Issue Report `$this->cacheTTL[$env]` is of type `object<DateInterval>`, but the function expects a `null\|integer\|object<Psr\SimpleCache\DateInterval>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
128			}
129			return $container;
130			}
131			}
132

byjg / config

Pull Request — master (#1)

Definition::loadConfig() A

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