DIC::getFromEnvOrDICParams() - Code Metrics - Inspection of "Environment variable support" - mauretto78/simple-dic - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( 3f0f4d...875c9b )

by Mauro

created 2019-08-02 15:00 UTC

DIC::getFromEnvOrDICParams() A

↳ Parent: DIC

Complexity

Conditions	5
Paths	5

Size

Total Lines	11
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	5
eloc	5
nc	5
nop	1
dl	0
loc	11
rs	9.6111
c	0
b	0
f	0

<?php

namespace SimpleDIC;

use Pimple\Container;
use SimpleDIC\Parser\Parser;

class DIC
{
    /**
     * @var Container
     */
    private static $container;

    /**
     * DIC constructor.
     *
     * @param array $config
     */
    private function __construct(array $config = [])
    {
        self::$container = new Container();

        $this->resolveDependencies($config);
    }

    /**
     * @return int
     */
    public static function count()
    {
        return count(self::keys());
    }

    /**
     * Initialise the DIC
     *
     * @param array $config
     *
     * @return DIC
     */
    public static function init(array $config = [])
    {
        return new self($config);
    }

    /**
     * @param string $filename
     *
     * @return DIC
     * @throws \Exception
     */
    public static function initFromFile($filename)
    {
        return new self(Parser::parse($filename));
    }

    /**
     * @return array
     */
    public static function keys()
    {
        return self::$container->keys();
    }

    /**
     * Resolve the dependencies and register into the DIC
     *
     * @param array $config
     */
    private function resolveDependencies(array $config = [])
    {
        foreach ($config as $key => $content) {
            self::set($key, $content);
        }
    }

    /**
     *
     * Check for an entry existence within the container
     *
     * @param string $dependency
     *
     * @return bool
     */
    public static function has($dependency)
    {
        return isset(self::$container[$dependency]);
    }

    /**
     * Get an entry from the container.
     *
     * The method returns:
     * - false if the entry has a wrong configuration
     * - NULL if the entry does not exists
     *
     * @param string $dependency
     *
     * @return mixed
     */
    public static function get($dependency)
    {
        if (self::has($dependency)) {
            return self::$container[$dependency];
        }
    }

    /**
     * Set an entry in the container.
     *
     * @param string $key
     * @param array|mixed $content
     *
     * @return mixed|bool|null
     */
    public static function set($key, $content)
    {
        if (false === self::has($key)) {
            self::$container[$key] = function ($c) use ($content) {

                // if is not a class set the entry value in DIC
                if (false === isset($content['class'])) {
                    return self::getFromEnvOrDICParams($content);
                }

                // otherwise it's a class, so extract variables
                $class           = isset($content['class']) ? $content['class'] : null;
                $classArguments  = isset($content['arguments']) ? $content['arguments'] : null;
                $method          = isset($content['method']) ? $content['method'] : null;
                $methodArguments = isset($content['method_arguments']) ? $content['method_arguments'] : null;

                // if specified, call a method
                if ($method) {

                    // if specified, call the method with provided arguments
                    if ($methodArguments) {
                        try {
                            return call_user_func_array([$class, $method], self::getArgumentsToInject($c, $methodArguments));
                        } catch (\Error $error) {
                            return false;
                        } catch (\Exception $exception) {
                            return false;
                        }
                    }

                    // if not, call the method with no arguments
                    try {
                        return call_user_func([$class, $method]);
                    } catch (\Error $error) {
                        return false;
                    } catch (\Exception $exception) {
                        return false;
                    }
                }

                if (false === class_exists($class)) {
                    return false;
                }

                // if the method is not specified, call the constructor
                try {
                    return new $class(...self::getArgumentsToInject($c, $classArguments));
                } catch (\Error $error) {
                    return false;
                } catch (\Exception $exception) {
                    return false;
                }
            };

            return null;
        }
    }

    /**
     * Get the arguments to inject into the class to instantiate within DIC.
     *
     * @param Container $c
     * @param null      $providedArguments

     *
     * @return array
     */
    private static function getArgumentsToInject(Container $c, $providedArguments = null)
    {
        $returnArguments = [];

        if (null != $providedArguments) {

            foreach ($providedArguments as $argument) {
                $returnArguments[] = self::getArgumentToInject($argument, $c);
            }
        }

        return $returnArguments;
    }

    /**
     * @param   string        $argument
     * @param Container $c
     *
     * @return mixed|string|null
     */
    private static function getArgumentToInject($argument, Container $c)
    {
        if (isset($c[ltrim($argument, '@')])) {
            return $c[ltrim($argument, '@')];
        }

        return self::getFromEnvOrDICParams($argument);
    }

    /**
     * @param string $parameter
     *
     * @return mixed|string|null
     */
    private static function getFromEnvOrDICParams($parameter)
    {
        if (is_string($parameter)) {

            if (null !== self::getEnvKey($parameter)) {
                return (getenv(self::getEnvKey($parameter))) ? getenv(self::getEnvKey($parameter)) : $parameter;
            }

            return (DICParams::has(self::getParamKey($parameter))) ? DICParams::get(self::getParamKey($parameter)) : $parameter;
        }

        return $parameter;
    }

    /**
     * Extract from a string like %env(FOO)%
     *
     * @param string $string
     *
     * @return mixed|null
     */
    private static function getEnvKey($string)
    {
        preg_match('~%env\((.*?)\)%~', $string, $matches);

        return (count($matches) > 0) ? $matches[1] : null;
    }

    /**
     * @param string $string
     *
     * @return string
     */
    private static function getParamKey($string)
    {
        return trim($string, '%');
    }
}


1			<?php
2
3			namespace SimpleDIC;
4
5			use Pimple\Container;
6			use SimpleDIC\Parser\Parser;
7
8			class DIC
9			{
10			/**
11			* @var Container
12			*/
13			private static $container;
14
15			/**
16			* DIC constructor.
17			*
18			* @param array $config
19			*/
20			private function __construct(array $config = [])
21			{
22			self::$container = new Container();
23
24			$this->resolveDependencies($config);
25			}
26
27			/**
28			* @return int
29			*/
30			public static function count()
31			{
32			return count(self::keys());
33			}
34
35			/**
36			* Initialise the DIC
37			*
38			* @param array $config
39			*
40			* @return DIC
41			*/
42			public static function init(array $config = [])
43			{
44			return new self($config);
45			}
46
47			/**
48			* @param string $filename
49			*
50			* @return DIC
51			* @throws \Exception
52			*/
53			public static function initFromFile($filename)
54			{
55			return new self(Parser::parse($filename));
56			}
57
58			/**
59			* @return array
60			*/
61			public static function keys()
62			{
63			return self::$container->keys();
64			}
65
66			/**
67			* Resolve the dependencies and register into the DIC
68			*
69			* @param array $config
70			*/
71			private function resolveDependencies(array $config = [])
72			{
73			foreach ($config as $key => $content) {
74			self::set($key, $content);
75			}
76			}
77
78			/**
79			*
80			* Check for an entry existence within the container
81			*
82			* @param string $dependency
83			*
84			* @return bool
85			*/
86			public static function has($dependency)
87			{
88			return isset(self::$container[$dependency]);
89			}
90
91			/**
92			* Get an entry from the container.
93			*
94			* The method returns:
95			* - false if the entry has a wrong configuration
96			* - NULL if the entry does not exists
97			*
98			* @param string $dependency
99			*
100			* @return mixed
101			*/
102			public static function get($dependency)
103			{
104			if (self::has($dependency)) {
105			return self::$container[$dependency];
106			}
107			}
108
109			/**
110			* Set an entry in the container.
111			*
112			* @param string $key
113			* @param array\|mixed $content
114			*
115			* @return mixed\|bool\|null
116			*/
117			public static function set($key, $content)
118			{
119			if (false === self::has($key)) {
120			self::$container[$key] = function ($c) use ($content) {
121
122			// if is not a class set the entry value in DIC
123			if (false === isset($content['class'])) {
124			return self::getFromEnvOrDICParams($content);
125			}
126
127			// otherwise it's a class, so extract variables
128			$class = isset($content['class']) ? $content['class'] : null;
129			$classArguments = isset($content['arguments']) ? $content['arguments'] : null;
130			$method = isset($content['method']) ? $content['method'] : null;
131			$methodArguments = isset($content['method_arguments']) ? $content['method_arguments'] : null;
132
133			// if specified, call a method
134			if ($method) {
135
136			// if specified, call the method with provided arguments
137			if ($methodArguments) {
138			try {
139			return call_user_func_array([$class, $method], self::getArgumentsToInject($c, $methodArguments));
140			} catch (\Error $error) {
141			return false;
142			} catch (\Exception $exception) {
143			return false;
144			}
145			}
146
147			// if not, call the method with no arguments
148			try {
149			return call_user_func([$class, $method]);
150			} catch (\Error $error) {
151			return false;
152			} catch (\Exception $exception) {
153			return false;
154			}
155			}
156
157			if (false === class_exists($class)) {
158			return false;
159			}
160
161			// if the method is not specified, call the constructor
162			try {
163			return new $class(...self::getArgumentsToInject($c, $classArguments));
164			} catch (\Error $error) {
165			return false;
166			} catch (\Exception $exception) {
167			return false;
168			}
169			};
170
171			return null;
172			}
173			}
174
175			/**
176			* Get the arguments to inject into the class to instantiate within DIC.
177			*
178			* @param Container $c
179			* @param null $providedArguments
			0 ignored issues – show Documentation Bug introduced 2019-08-01 14:45 UTC by Report Bug Copy Issue Report Are you sure the doc-type for parameter `$providedArguments` is correct as it would always require `null` to be passed? Loading history...
180			*
181			* @return array
182			*/
183			private static function getArgumentsToInject(Container $c, $providedArguments = null)
184			{
185			$returnArguments = [];
186
187			if (null != $providedArguments) {
			0 ignored issues – show introduced 2019-08-01 14:45 UTC by Report Bug Copy Issue Report The condition `null != $providedArguments` is always `false`. Loading history...
188			foreach ($providedArguments as $argument) {
189			$returnArguments[] = self::getArgumentToInject($argument, $c);
190			}
191			}
192
193			return $returnArguments;
194			}
195
196			/**
197			* @param string $argument
198			* @param Container $c
199			*
200			* @return mixed\|string\|null
201			*/
202			private static function getArgumentToInject($argument, Container $c)
203			{
204			if (isset($c[ltrim($argument, '@')])) {
205			return $c[ltrim($argument, '@')];
206			}
207
208			return self::getFromEnvOrDICParams($argument);
209			}
210
211			/**
212			* @param string $parameter
213			*
214			* @return mixed\|string\|null
215			*/
216			private static function getFromEnvOrDICParams($parameter)
217			{
218			if (is_string($parameter)) {
			0 ignored issues – show introduced 2019-08-02 13:37 UTC by Report Bug Copy Issue Report The condition `is_string($parameter)` is always `true`. Loading history...
219			if (null !== self::getEnvKey($parameter)) {
220			return (getenv(self::getEnvKey($parameter))) ? getenv(self::getEnvKey($parameter)) : $parameter;
221			}
222
223			return (DICParams::has(self::getParamKey($parameter))) ? DICParams::get(self::getParamKey($parameter)) : $parameter;
224			}
225
226			return $parameter;
227			}
228
229			/**
230			* Extract from a string like %env(FOO)%
231			*
232			* @param string $string
233			*
234			* @return mixed\|null
235			*/
236			private static function getEnvKey($string)
237			{
238			preg_match('~%env\((.*?)\)%~', $string, $matches);
239
240			return (count($matches) > 0) ? $matches[1] : null;
241			}
242
243			/**
244			* @param string $string
245			*
246			* @return string
247			*/
248			private static function getParamKey($string)
249			{
250			return trim($string, '%');
251			}
252			}
253

mauretto78 / simple-dic

Push — master ( 3f0f4d...875c9b )

DIC::getFromEnvOrDICParams() A

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