AbstractConfig::reduceToSubKey() - Code Metrics - Inspection of "Update changelog." - brightnucleus/config - Measure and Improve Code Quality continuously with Scrutinizer

Test Failed

Push — master ( e5208b...d1bce3 )

by Alain

created 2016-02-18 13:47 UTC

AbstractConfig::reduceToSubKey() A

↳ Parent: AbstractConfig

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Metric	Value
dl	0
loc	4
ccs	3
cts	3
cp	1
rs	10
cc	1
eloc	2
nc	1
nop	1
crap	1

<?php
/**
 * Abstract Config Object
 *
 * @package   BrightNucleus\Config
 * @author    Alain Schlesser <[email protected]>
 * @license   GPL-2.0+
 * @link      http://www.brightnucleus.com/
 * @copyright 2016 Alain Schlesser, Bright Nucleus
 */

namespace BrightNucleus\Config;

use ArrayObject;
use Assert;
use BrightNucleus\Exception\BadMethodCallException;
use BrightNucleus\Exception\OutOfRangeException;
use Exception;

/**
 * Config loader used to load config PHP files as objects.
 *
 * @since      0.1.0
 *
 * @package    BrightNucleus\Config
 * @author     Alain Schlesser <[email protected]>
 */
abstract class AbstractConfig extends ArrayObject implements ConfigInterface
{

    /**
     * Array of strings that are used as delimiters to parse configuration keys.
     *
     * @since 0.1.6
     *
     * @var array
     */
    protected $delimiter = ['\\', '/', '.'];

    /**
     * Instantiate the AbstractConfig object.
     *
     * @since 0.1.0
     * @since 0.1.6 Accepts a delimiter to parse configuration keys.
     *
     * @param array                $config    Array with settings.
     * @param string[]|string|null $delimiter A string or array of strings that are used as delimiters to parse
     *                                        configuration keys. Defaults to "\", "/" & ".".
     */
    public function __construct(array $config, $delimiter = null)
    {
        // Make sure the config entries can be accessed as properties.
        parent::__construct($config, ArrayObject::ARRAY_AS_PROPS);

        if (null !== $delimiter) {
            $this->delimiter = (array)$delimiter;
        }
    }

    /**
     * Get the value of a specific key.
     *
     * To get a value several levels deep, add the keys for each level as a comma-separated list.
     *
     * @since 0.1.0
     * @since 0.1.4 Accepts list of keys.
     *
     * @param string $_ List of keys.
     * @return mixed
     * @throws BadMethodCallException If no argument was provided.
     * @throws OutOfRangeException If an unknown key is requested.
     */
    public function getKey($_)

    {
        $keys = $this->validateKeys(func_get_args());

        $keys  = array_reverse($keys);
        $array = $this->getArrayCopy();
        while (count($keys) > 0) {
            $key   = array_pop($keys);
            $array = $array[$key];
        }

        return $array;
    }

    /**
     * Check whether the Config has a specific key.
     *
     * To check a value several levels deep, add the keys for each level as a comma-separated list.
     *
     * @since 0.1.0
     * @since 0.1.4 Accepts list of keys.
     *
     * @param string $_ List of keys.
     * @return bool
     */
    public function hasKey($_)

    {
        try {
            $keys = array_reverse($this->getKeyArguments(func_get_args()));

            $array = $this->getArrayCopy();
            while (count($keys) > 0) {
                $key = array_pop($keys);
                if (! array_key_exists($key, $array)) {
                    return false;
                }
                $array = $array[$key];
            }
        } catch (Exception $exception) {
            return false;
        }

        return true;
    }

    /**
     * Get a (multi-dimensional) array of all the configuration settings.
     *
     * @since 0.1.4
     *
     * @return array
     */
    public function getAll()
    {
        return $this->getArrayCopy();
    }

    /**
     * Get the an array with all the keys
     *
     * @since 0.1.0
     * @return array

     */
    public function getKeys()
    {
        return array_keys((array)$this);
    }

    /**
     * Get a new config at a specific sub-level.
     *
     * @since 0.1.13
     *
     * @param string $_ List of keys.
     * @return ConfigInterface

     * @throws BadMethodCallException If no argument was provided.
     * @throws OutOfRangeException If an unknown key is requested.
     */
    public function getSubConfig($_)

    {
        $keys = $this->validateKeys(func_get_args());

        $subConfig = clone $this;
        $subConfig->reduceToSubKey($keys);

        return $subConfig;
    }

    /**
     * Validate a set of keys to make sure they exist.
     *
     * @since 0.1.13
     *
     * @param string $_ List of keys.
     * @return array List of keys.
     * @throws BadMethodCallException If no argument was provided.
     * @throws OutOfRangeException If an unknown key is requested.
     */
    public function validateKeys($_)

    {
        $keys = $this->getKeyArguments(func_get_args());

        Assert\that($keys)->all()->string()->notEmpty();

        if (! $this->hasKey($keys)) {
            throw new OutOfRangeException(
                sprintf(
                    _('The configuration key %1$s does not exist.'),
                    implode('->', $keys)
                )
            );
        }

        return $keys;
    }

    /**
     * Reduce the currently stored config array to a subarray at a specific level.
     *
     * @since 0.1.13
     *
     * @param array $keys Array of keys that point to a key down in the hierarchy.
     */
    protected function reduceToSubKey(array $keys)
    {
        $this->exchangeArray($this->getKey($keys));
    }

    /**
     * Recursively extract the configuration key arguments from an arbitrary array.
     *
     * @since 0.1.6
     *
     * @param array $arguments Array as fetched through get_func_args().
     * @return array Array of strings.
     * @throws BadMethodCallException If no argument was provided.
     */
    protected function getKeyArguments($arguments)
    {
        Assert\that($arguments)->isArray()->notEmpty();

        $keys = [];
        foreach ($arguments as $argument) {
            if (is_array($argument)) {
                $keys = array_merge($keys, $this->getKeyArguments($argument));
            }
            if (is_string($argument)) {
                $keys = array_merge($keys, $this->parseKeysString($argument));
            }
        }

        return $keys;
    }

    /**
     * Extract individual keys from a delimited string.
     *
     * @since 0.1.6
     *
     * @param string $keyString Delimited string of keys.
     * @return array Array of key strings.
     */
    protected function parseKeysString($keyString)
    {
        Assert\that($keyString)->string()->notEmpty();

        // Replace all of the configured delimiters by the first one, so that we can then use explode().
        $normalizedString = str_replace($this->delimiter, $this->delimiter[0], $keyString);

        return (array)explode($this->delimiter[0], $normalizedString);
    }

    /**
     * Validate the Config file.
     *
     * @since  0.1.0
     * @return boolean
     */
    abstract public function isValid();
}


1		<?php
2		/**
3		* Abstract Config Object
4		*
5		* @package BrightNucleus\Config
6		* @author Alain Schlesser <[email protected]>
7		* @license GPL-2.0+
8		* @link http://www.brightnucleus.com/
9		* @copyright 2016 Alain Schlesser, Bright Nucleus
10		*/
11
12		namespace BrightNucleus\Config;
13
14		use ArrayObject;
15		use Assert;
16		use BrightNucleus\Exception\BadMethodCallException;
17		use BrightNucleus\Exception\OutOfRangeException;
18		use Exception;
19
20		/**
21		* Config loader used to load config PHP files as objects.
22		*
23		* @since 0.1.0
24		*
25		* @package BrightNucleus\Config
26		* @author Alain Schlesser <[email protected]>
27		*/
28		abstract class AbstractConfig extends ArrayObject implements ConfigInterface
29		{
30
31		/**
32		* Array of strings that are used as delimiters to parse configuration keys.
33		*
34		* @since 0.1.6
35		*
36		* @var array
37		*/
38		protected $delimiter = ['\\', '/', '.'];
39
40		/**
41		* Instantiate the AbstractConfig object.
42		*
43		* @since 0.1.0
44		* @since 0.1.6 Accepts a delimiter to parse configuration keys.
45		*
46		* @param array $config Array with settings.
47		* @param string[]\|string\|null $delimiter A string or array of strings that are used as delimiters to parse
48		* configuration keys. Defaults to "\", "/" & ".".
49		*/
50	3	public function __construct(array $config, $delimiter = null)
51		{
52		// Make sure the config entries can be accessed as properties.
53	3	parent::__construct($config, ArrayObject::ARRAY_AS_PROPS);
54
55	3	if (null !== $delimiter) {
56	1	$this->delimiter = (array)$delimiter;
57		}
58	3	}
59
60		/**
61		* Get the value of a specific key.
62		*
63		* To get a value several levels deep, add the keys for each level as a comma-separated list.
64		*
65		* @since 0.1.0
66		* @since 0.1.4 Accepts list of keys.
67		*
68		* @param string $_ List of keys.
69		* @return mixed
70		* @throws BadMethodCallException If no argument was provided.
71		* @throws OutOfRangeException If an unknown key is requested.
72		*/
73	3	public function getKey($_)
		1 ignored issue – show Comprehensibility introduced 2016-02-18 13:50 UTC by Report Bug Copy Issue Report Avoid variables with short names like $_. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
74		{
75	3	$keys = $this->validateKeys(func_get_args());
76
77	3	$keys = array_reverse($keys);
78	3	$array = $this->getArrayCopy();
79	3	while (count($keys) > 0) {
80	3	$key = array_pop($keys);
81	3	$array = $array[$key];
82		}
83
84	3	return $array;
85		}
86
87		/**
88		* Check whether the Config has a specific key.
89		*
90		* To check a value several levels deep, add the keys for each level as a comma-separated list.
91		*
92		* @since 0.1.0
93		* @since 0.1.4 Accepts list of keys.
94		*
95		* @param string $_ List of keys.
96		* @return bool
97		*/
98	3	public function hasKey($_)
		1 ignored issue – show Comprehensibility introduced 2016-02-18 13:50 UTC by Report Bug Copy Issue Report Avoid variables with short names like $_. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
99		{
100		try {
101	3	$keys = array_reverse($this->getKeyArguments(func_get_args()));
102
103	3	$array = $this->getArrayCopy();
104	3	while (count($keys) > 0) {
105	3	$key = array_pop($keys);
106	3	if (! array_key_exists($key, $array)) {
107	3	return false;
108		}
109	3	$array = $array[$key];
110		}
111	1	} catch (Exception $exception) {
112	1	return false;
113		}
114
115	3	return true;
116		}
117
118		/**
119		* Get a (multi-dimensional) array of all the configuration settings.
120		*
121		* @since 0.1.4
122		*
123		* @return array
124		*/
125	1	public function getAll()
126		{
127	1	return $this->getArrayCopy();
128		}
129
130		/**
131		* Get the an array with all the keys
132		*
133		* @since 0.1.0
134		* @return array
		0 ignored issues – show Documentation introduced 2016-02-10 08:02 UTC by Report Bug Copy Issue Report Consider making the return type a bit more specific; maybe use `array<integer\|string>`. This check looks for the generic type `array` as a return type and suggests a more specific type. This type is inferred from the actual code. Loading history...
135		*/
136	1	public function getKeys()
137		{
138	1	return array_keys((array)$this);
139		}
140
141		/**
142		* Get a new config at a specific sub-level.
143		*
144		* @since 0.1.13
145		*
146		* @param string $_ List of keys.
147		* @return ConfigInterface
		1 ignored issue – show Documentation introduced 2016-02-17 18:03 UTC by Report Bug Copy Issue Report Consider making the return type a bit more specific; maybe use `AbstractConfig`. This check looks for the generic type `array` as a return type and suggests a more specific type. This type is inferred from the actual code. Loading history...
148		* @throws BadMethodCallException If no argument was provided.
149		* @throws OutOfRangeException If an unknown key is requested.
150		*/
151	1	public function getSubConfig($_)
		1 ignored issue – show Comprehensibility introduced 2016-02-18 13:50 UTC by Report Bug Copy Issue Report Avoid variables with short names like $_. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
152		{
153	1	$keys = $this->validateKeys(func_get_args());
154
155	1	$subConfig = clone $this;
156	1	$subConfig->reduceToSubKey($keys);
157
158	1	return $subConfig;
159		}
160
161		/**
162		* Validate a set of keys to make sure they exist.
163		*
164		* @since 0.1.13
165		*
166		* @param string $_ List of keys.
167		* @return array List of keys.
168		* @throws BadMethodCallException If no argument was provided.
169		* @throws OutOfRangeException If an unknown key is requested.
170		*/
171	1	public function validateKeys($_)
		2 ignored issues – show Unused Code introduced 2016-02-18 13:50 UTC by Report Bug Copy Issue Report The parameter `$_` is not used and could be removed. This check looks from parameters that have been defined for a function or method, but which are not used in the method body. Loading history... Comprehensibility introduced 2016-02-18 13:50 UTC by Report Bug Copy Issue Report Avoid variables with short names like $_. Configured minimum length is 3. Short variable names may make your code harder to understand. Variable names should be self-descriptive. This check looks for variable names who are shorter than a configured minimum. Loading history...
172		{
173	1	$keys = $this->getKeyArguments(func_get_args());
174
175	1	Assert\that($keys)->all()->string()->notEmpty();
176
177	1	if (! $this->hasKey($keys)) {
178	1	throw new OutOfRangeException(
179		sprintf(
180	1	_('The configuration key %1$s does not exist.'),
181	1	implode('->', $keys)
182		)
183		);
184		}
185
186	1	return $keys;
187		}
188
189		/**
190		* Reduce the currently stored config array to a subarray at a specific level.
191		*
192		* @since 0.1.13
193		*
194		* @param array $keys Array of keys that point to a key down in the hierarchy.
195		*/
196	1	protected function reduceToSubKey(array $keys)
197		{
198	1	$this->exchangeArray($this->getKey($keys));
199	1	}
200
201		/**
202		* Recursively extract the configuration key arguments from an arbitrary array.
203		*
204		* @since 0.1.6
205		*
206		* @param array $arguments Array as fetched through get_func_args().
207		* @return array Array of strings.
208		* @throws BadMethodCallException If no argument was provided.
209		*/
210	5	protected function getKeyArguments($arguments)
211		{
212	5	Assert\that($arguments)->isArray()->notEmpty();
213
214	5	$keys = [];
215	5	foreach ($arguments as $argument) {
216	5	if (is_array($argument)) {
217	5	$keys = array_merge($keys, $this->getKeyArguments($argument));
218		}
219	4	if (is_string($argument)) {
220	4	$keys = array_merge($keys, $this->parseKeysString($argument));
221		}
222		}
223
224	4	return $keys;
225		}
226
227		/**
228		* Extract individual keys from a delimited string.
229		*
230		* @since 0.1.6
231		*
232		* @param string $keyString Delimited string of keys.
233		* @return array Array of key strings.
234		*/
235	2	protected function parseKeysString($keyString)
236		{
237	2	Assert\that($keyString)->string()->notEmpty();
238
239		// Replace all of the configured delimiters by the first one, so that we can then use explode().
240	2	$normalizedString = str_replace($this->delimiter, $this->delimiter[0], $keyString);
241
242	2	return (array)explode($this->delimiter[0], $normalizedString);
243		}
244
245		/**
246		* Validate the Config file.
247		*
248		* @since 0.1.0
249		* @return boolean
250		*/
251		abstract public function isValid();
252		}
253

brightnucleus / config

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AbstractConfig::reduceToSubKey() A

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