MemoryConfigCollection - Code Metrics - silverstripe/silverstripe-config - Measure and Improve Code Quality continuously with Scrutinizer

MemoryConfigCollection B
last analyzed 2020-03-26 09:26 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	295
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Test Coverage

Coverage

70.83%

Importance

Changes

Metric	Value
wmc	46
lcom	1
cbo	3
dl	0
loc	295
ccs	85
cts	120
cp	0.7083
rs	8.72
c	0
b	0
f	0

19 Methods

Rating	Name	Size	Complexity
A	__construct()	4	1
A	create()	4	1
A	transform()	7	2
A	set()	18	3
A	get()	15	5
A	getClassConfig()	29	5
A	exists()	11	3
A	remove()	12	2
A	removeAll()	7	1
A	getAll()	4	1
A	update()	5	1
A	merge()	12	3
A	getMetadata()	8	3
A	getHistory()	8	3
A	getSerializedMembers()	7	1
A	serialize()	9	2
A	unserialize()	7	3
A	nest()	4	1
A	saveMetadata()	23	5

How to fix Complexity

<?php

namespace SilverStripe\Config\Collections;

use SilverStripe\Config\MergeStrategy\Priority;
use SilverStripe\Config\Middleware\MiddlewareAware;
use SilverStripe\Config\Transformer\TransformerInterface;
use Serializable;

/**
 * Basic mutable config collection stored in memory
 */
class MemoryConfigCollection implements MutableConfigCollectionInterface, Serializable
{
    use MiddlewareAware;

    /**
     * Stores a list of key/value config prior to middleware being applied
     *
     * @var array
     */
    protected $config = [];

    /**
     * Call cache for non-trivial config calls including middleware
     *
     * @var array
     */
    protected $callCache = [];

    /**
     * @var array
     */
    protected $metadata = [];

    /**
     * @var array
     */
    protected $history = [];

    /**
     * @var boolean
     */
    protected $trackMetadata = false;

    /**
     * ConfigCollection constructor.
     *
     * @param bool $trackMetadata
     */
    public function __construct($trackMetadata = false)
    {
        $this->trackMetadata = $trackMetadata;
    }

    /**
     * @return static
     */
    public static function create()
    {
        return new static();
    }

    /**
     * Trigger transformers to load into this store
     *
     * @param  TransformerInterface[] $transformers
     * @return $this
     */
    public function transform($transformers)
    {
        foreach ($transformers as $transformer) {
            $transformer->transform($this);
        }
        return $this;
    }

    public function set($class, $name, $data, $metadata = [])
    {
        $this->saveMetadata($class, $metadata);

        $classKey = strtolower($class);
        if ($name) {
            if (!isset($this->config[$classKey])) {
                $this->config[$classKey] = [];
            }
            $this->config[$classKey][$name] = $data;
        } else {
            $this->config[$classKey] = $data;
        }

        // Flush call cache
        $this->callCache = [];
        return $this;
    }

    public function get($class, $name = null, $excludeMiddleware = 0)
    {
        if (!is_int($excludeMiddleware) && $excludeMiddleware !== true) {
            throw new \InvalidArgumentException("Invalid middleware flags");
        }

        // Get config for complete class
        $config = $this->getClassConfig($class, $excludeMiddleware);

        // Return either name, or whole-class config
        if ($name) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            return isset($config[$name]) ? $config[$name] : null;
        }
        return $config;
    }

    /**
     * Retrieve config for an entire class
     *
     * @param string $class Name of class
     * @param int|true $excludeMiddleware Optional flag of middleware to disable.
     * Passing in `true` disables all middleware.
     * Can also pass in int flags to specify specific middlewares.
     * @return array
     */
    protected function getClassConfig($class, $excludeMiddleware = 0)
    {
        // `true` excludes all middleware, so bypass call cache
        $classKey = strtolower($class);
        if ($excludeMiddleware === true) {
            return isset($this->config[$classKey]) ? $this->config[$classKey] : [];
        }

        // Check cache
        if (isset($this->callCache[$classKey][$excludeMiddleware])) {
            return $this->callCache[$classKey][$excludeMiddleware];
        }

        // Build middleware
        $result = $this->callMiddleware(
            $class,
            $excludeMiddleware,
            function ($class, $excludeMiddleware) {

                return $this->getClassConfig($class, true);
function acceptsInteger($int) { }

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

// Instead of
acceptsInteger($x);

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

        // Save cache
        if (!isset($this->callCache[$classKey])) {
            $this->callCache[$classKey] = [];
        }
        $this->callCache[$classKey][$excludeMiddleware] = $result;
        return $result;
    }

    public function exists($class, $name = null, $excludeMiddleware = 0)
    {
        $config = $this->get($class, null, $excludeMiddleware);
        if (empty($config)) {
            return false;
        }
        if ($name) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            return array_key_exists($name, $config);
        }
        return true;
    }

    public function remove($class, $name = null)
    {
        $classKey = strtolower($class);
        if ($name) {
''   == false // true
''   == null  // true
'ab' == false // false
'ab' == null  // false

// It is often better to use strict comparison
'' === false // false
'' === null  // false
            unset($this->config[$classKey][$name]);
        } else {
            unset($this->config[$classKey]);
        }
        // Discard call cache
        unset($this->callCache[$classKey]);
        return $this;
    }

    public function removeAll()
    {
        $this->config = [];
        $this->metadata = [];
        $this->history = [];
        $this->callCache = [];
    }

    /**
     * Get complete config (excludes middleware-applied config)
     *
     * @return array
     */
    public function getAll()
    {
        return $this->config;
    }

    /**
     * @deprecated 4.0...5.0
     *
     * Synonym for merge()
     *
     * @param string $class
     * @param string $name
     * @param mixed  $value
     * @return $this
     */
    public function update($class, $name, $value)
    {
        $this->merge($class, $name, $value);
        return $this;
    }

    public function merge($class, $name, $value)
    {
        // Detect mergeable config
        $existing = $this->get($class, $name, true);
function acceptsInteger($int) { }

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

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        if (is_array($value) && is_array($existing)) {
            $value = Priority::mergeArray($value, $existing);
        }

        // Apply
        $this->set($class, $name, $value);
        return $this;
    }

    public function getMetadata()
    {
        if (!$this->trackMetadata || !is_array($this->metadata)) {
            return [];
        }

        return $this->metadata;
    }

    public function getHistory()
    {
        if (!$this->trackMetadata || !is_array($this->history)) {
            return [];
        }

        return $this->history;
    }

    /**
     * Get list of serialized properties
     *
     * @return array
     */
    protected function getSerializedMembers()
    {
        return array_filter(array_keys(get_object_vars($this)), function ($key) {
            // Skip $_underscoreProp
            return strpos($key, '_') !== 0;
        });
    }

    public function serialize()
    {
        // Auto-serialize
        $data = [];
        foreach ($this->getSerializedMembers() as $key) {
            $data[$key] = $this->$key;
        }
        return serialize($data);
    }

    public function unserialize($serialized)
    {
        $data = unserialize($serialized);
        foreach ($this->getSerializedMembers() as $key) {
            $this->$key = isset($data[$key]) ? $data[$key] : null;
        }
    }

    public function nest()
    {
        return clone $this;
    }

    /**
     * Save metadata for the given class
     *
     * @param string $class
     * @param array  $metadata
     */
    protected function saveMetadata($class, $metadata)
    {
        if (!$this->trackMetadata) {
            return;
        }

        $classKey = strtolower($class);
        if (isset($this->metadata[$classKey]) && isset($this->config[$classKey])) {
            if (!isset($this->history[$classKey])) {
                $this->history[$classKey] = [];
            }

            array_unshift(
                $this->history[$classKey],
                [
                'value' => $this->config[$classKey],
                'metadata' => $this->metadata[$classKey]
                ]
            );
        }

        $this->metadata[$classKey] = $metadata;
    }
}


1		<?php
2
3		namespace SilverStripe\Config\Collections;
4
5		use SilverStripe\Config\MergeStrategy\Priority;
6		use SilverStripe\Config\Middleware\MiddlewareAware;
7		use SilverStripe\Config\Transformer\TransformerInterface;
8		use Serializable;
9
10		/**
11		* Basic mutable config collection stored in memory
12		*/
13		class MemoryConfigCollection implements MutableConfigCollectionInterface, Serializable
14		{
15		use MiddlewareAware;
16
17		/**
18		* Stores a list of key/value config prior to middleware being applied
19		*
20		* @var array
21		*/
22		protected $config = [];
23
24		/**
25		* Call cache for non-trivial config calls including middleware
26		*
27		* @var array
28		*/
29		protected $callCache = [];
30
31		/**
32		* @var array
33		*/
34		protected $metadata = [];
35
36		/**
37		* @var array
38		*/
39		protected $history = [];
40
41		/**
42		* @var boolean
43		*/
44		protected $trackMetadata = false;
45
46		/**
47		* ConfigCollection constructor.
48		*
49		* @param bool $trackMetadata
50		*/
51	31	public function __construct($trackMetadata = false)
52		{
53	31	$this->trackMetadata = $trackMetadata;
54	31	}
55
56		/**
57		* @return static
58		*/
59		public static function create()
60		{
61		return new static();
62		}
63
64		/**
65		* Trigger transformers to load into this store
66		*
67		* @param TransformerInterface[] $transformers
68		* @return $this
69		*/
70	18	public function transform($transformers)
71		{
72	18	foreach ($transformers as $transformer) {
73	18	$transformer->transform($this);
74	16	}
75	16	return $this;
76		}
77
78	28	public function set($class, $name, $data, $metadata = [])
79		{
80	28	$this->saveMetadata($class, $metadata);
81
82	28	$classKey = strtolower($class);
83	28	if ($name) {
84	6	if (!isset($this->config[$classKey])) {
85	6	$this->config[$classKey] = [];
86	6	}
87	6	$this->config[$classKey][$name] = $data;
88	6	} else {
89	28	$this->config[$classKey] = $data;
90		}
91
92		// Flush call cache
93	28	$this->callCache = [];
94	28	return $this;
95		}
96
97	28	public function get($class, $name = null, $excludeMiddleware = 0)
98		{
99	28	if (!is_int($excludeMiddleware) && $excludeMiddleware !== true) {
100		throw new \InvalidArgumentException("Invalid middleware flags");
101		}
102
103		// Get config for complete class
104	28	$config = $this->getClassConfig($class, $excludeMiddleware);
105
106		// Return either name, or whole-class config
107	28	if ($name) {
		0 ignored issues – show Bug Best Practice introduced 2017-04-10 22:07 UTC by Report Bug Copy Issue Report The expression `$name` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
108	7	return isset($config[$name]) ? $config[$name] : null;
109		}
110	28	return $config;
111		}
112
113		/**
114		* Retrieve config for an entire class
115		*
116		* @param string $class Name of class
117		* @param int\|true $excludeMiddleware Optional flag of middleware to disable.
118		* Passing in `true` disables all middleware.
119		* Can also pass in int flags to specify specific middlewares.
120		* @return array
121		*/
122	28	protected function getClassConfig($class, $excludeMiddleware = 0)
123		{
124		// `true` excludes all middleware, so bypass call cache
125	28	$classKey = strtolower($class);
126	28	if ($excludeMiddleware === true) {
127	27	return isset($this->config[$classKey]) ? $this->config[$classKey] : [];
128		}
129
130		// Check cache
131	28	if (isset($this->callCache[$classKey][$excludeMiddleware])) {
132	3	return $this->callCache[$classKey][$excludeMiddleware];
133		}
134
135		// Build middleware
136	28	$result = $this->callMiddleware(
137	28	$class,
138	28	$excludeMiddleware,
139		function ($class, $excludeMiddleware) {
		0 ignored issues – show Unused Code introduced 2017-10-12 01:21 UTC by Report Bug Copy Issue Report The parameter `$excludeMiddleware` 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...
140	27	return $this->getClassConfig($class, true);
		0 ignored issues – show Documentation introduced 2017-10-12 01:21 UTC by Report Bug Copy Issue Report `true` is of type `boolean`, but the function expects a `integer`. 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) $x); Loading history...
141		}
142	28	);
143
144		// Save cache
145	28	if (!isset($this->callCache[$classKey])) {
146	28	$this->callCache[$classKey] = [];
147	28	}
148	28	$this->callCache[$classKey][$excludeMiddleware] = $result;
149	28	return $result;
150		}
151
152	2	public function exists($class, $name = null, $excludeMiddleware = 0)
153		{
154	2	$config = $this->get($class, null, $excludeMiddleware);
155	2	if (empty($config)) {
156	2	return false;
157		}
158	1	if ($name) {
		0 ignored issues – show Bug Best Practice introduced 2017-04-10 22:07 UTC by Report Bug Copy Issue Report The expression `$name` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
159		return array_key_exists($name, $config);
160		}
161	1	return true;
162		}
163
164	1	public function remove($class, $name = null)
165		{
166	1	$classKey = strtolower($class);
167	1	if ($name) {
		0 ignored issues – show Bug Best Practice introduced 2017-04-10 22:07 UTC by Report Bug Copy Issue Report The expression `$name` of type `string\|null` is loosely compared to `true`; this is ambiguous if the string can be empty. You might want to explicitly use `!== null` instead. In PHP, under loose comparison (like `==`, or `!=`, or `switch` conditions), values of different types might be equal. For `string` values, the empty string `''` is a special case, in particular the following results might be unexpected: '' == false // true '' == null // true 'ab' == false // false 'ab' == null // false // It is often better to use strict comparison '' === false // false '' === null // false Loading history...
168		unset($this->config[$classKey][$name]);
169		} else {
170	1	unset($this->config[$classKey]);
171		}
172		// Discard call cache
173	1	unset($this->callCache[$classKey]);
174	1	return $this;
175		}
176
177	1	public function removeAll()
178		{
179	1	$this->config = [];
180	1	$this->metadata = [];
181	1	$this->history = [];
182	1	$this->callCache = [];
183	1	}
184
185		/**
186		* Get complete config (excludes middleware-applied config)
187		*
188		* @return array
189		*/
190		public function getAll()
191		{
192		return $this->config;
193		}
194
195		/**
196		* @deprecated 4.0...5.0
197		*
198		* Synonym for merge()
199		*
200		* @param string $class
201		* @param string $name
202		* @param mixed $value
203		* @return $this
204		*/
205		public function update($class, $name, $value)
206		{
207		$this->merge($class, $name, $value);
208		return $this;
209		}
210
211		public function merge($class, $name, $value)
212		{
213		// Detect mergeable config
214		$existing = $this->get($class, $name, true);
		0 ignored issues – show Documentation introduced 2017-04-10 22:07 UTC by Report Bug Copy Issue Report `true` is of type `boolean`, but the function expects a `integer`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
215		if (is_array($value) && is_array($existing)) {
216		$value = Priority::mergeArray($value, $existing);
217		}
218
219		// Apply
220		$this->set($class, $name, $value);
221		return $this;
222		}
223
224	8	public function getMetadata()
225		{
226	8	if (!$this->trackMetadata \|\| !is_array($this->metadata)) {
227	7	return [];
228		}
229
230	1	return $this->metadata;
231		}
232
233	2	public function getHistory()
234		{
235	2	if (!$this->trackMetadata \|\| !is_array($this->history)) {
236	1	return [];
237		}
238
239	1	return $this->history;
240		}
241
242		/**
243		* Get list of serialized properties
244		*
245		* @return array
246		*/
247		protected function getSerializedMembers()
248		{
249		return array_filter(array_keys(get_object_vars($this)), function ($key) {
250		// Skip $_underscoreProp
251		return strpos($key, '_') !== 0;
252		});
253		}
254
255		public function serialize()
256		{
257		// Auto-serialize
258		$data = [];
259		foreach ($this->getSerializedMembers() as $key) {
260		$data[$key] = $this->$key;
261		}
262		return serialize($data);
263		}
264
265		public function unserialize($serialized)
266		{
267		$data = unserialize($serialized);
268		foreach ($this->getSerializedMembers() as $key) {
269		$this->$key = isset($data[$key]) ? $data[$key] : null;
270		}
271		}
272
273		public function nest()
274		{
275		return clone $this;
276		}
277
278		/**
279		* Save metadata for the given class
280		*
281		* @param string $class
282		* @param array $metadata
283		*/
284	28	protected function saveMetadata($class, $metadata)
285		{
286	28	if (!$this->trackMetadata) {
287	27	return;
288		}
289
290	1	$classKey = strtolower($class);
291	1	if (isset($this->metadata[$classKey]) && isset($this->config[$classKey])) {
292	1	if (!isset($this->history[$classKey])) {
293	1	$this->history[$classKey] = [];
294	1	}
295
296	1	array_unshift(
297	1	$this->history[$classKey],
298		[
299	1	'value' => $this->config[$classKey],
300	1	'metadata' => $this->metadata[$classKey]
301	1	]
302	1	);
303	1	}
304
305	1	$this->metadata[$classKey] = $metadata;
306	1	}
307		}
308

silverstripe / silverstripe-config

MemoryConfigCollection B last analyzed 2020-03-26 09:26 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

19 Methods

How to fix Complexity

Complex Class

Duplication Side-by-Side

Filter issues like

MemoryConfigCollection B
last analyzed 2020-03-26 09:26 UTC