Random::getAlphaGenerator() - Code Metrics - Inspection of "Extract case methods" - antonioribeiro/random - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 2097d9...6577e3 )

by Antonio Carlos

created 2017-09-19 00:10 UTC

Random::getAlphaGenerator() A

↳ Parent: Random

Complexity

Conditions	1
Paths	1

Size

Total Lines	6
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	6
ccs	3
cts	3
cp	1
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	3
nc	1
nop	0
crap	1

<?php

namespace PragmaRX\Random;

class Random
{
    use CharCase;
    
    const DEFAULT_STRING_SIZE = 16;

    const DEFAULT_PATTERN = '[A-Za-z0-9]';

    protected $numeric = false;

    protected $start = 0;

    protected $end = PHP_INT_MAX;

    protected $size = null;

    protected $pattern = '[A-Za-z0-9]';

    /**
     * Extract a string pattern from a string.
     *
     * @param $string
     * @return string
     */
    protected function extractPattern($string)
    {
        if (is_null($pattern = $this->getPattern())) {
            return $string;
        }

        preg_match_all("/$pattern/", $string, $matches);

        return implode('', $matches[0]);
    }

    /**
     * Generate a random string.
     *
     * @return string
     */
    protected function generate()
    {
        return $this->numeric
            ? $this->generateNumeric()
            : $this->generateAlpha();
    }

    protected function generateInteger()
    {
        return random_int($this->getStart(), $this->getEnd());
    }

    /**
     * Generate a random string.
     *
     * @param \Closure $generator
     * @return mixed
     */
    protected function generateString($generator)
    {
        $string = '';

        while (strlen($string) < $size = $this->getSize()) {
            $string .= $this->extractPattern($generator($size));
        }

        return $this->trimToExpectedSize($string, $size);
    }

    /**
     * Get the alpha generator.
     *
     * @return mixed
     */
    protected function getAlphaGenerator()
    {
        return function ($size) {
            return random_bytes($size);
        };
    }

    /**
     * Get the alpha generator.
     *
     * @return mixed
     */
    protected function getNumericGenerator()
    {
        return function () {
            return random_int(0, PHP_INT_MAX);
        };
    }

    /**
     * Generate a random string.
     *
     * @return int|string
     */
    protected function generateAlpha()
    {
        return $this->generateString($this->getAlphaGenerator());
    }

    /**
     * Generate a numeric random value.
     *
     * @return int|string
     */
    protected function generateNumeric()
    {
        if (is_null($this->size) && $this->pattern == static::DEFAULT_PATTERN) {
            return $this->generateInteger();
        }

        return $this->generateString($this->getNumericGenerator());
    }

    /**
     * Get numeric end.
     *
     * @return int
     */
    public function getEnd()
    {
        return $this->end;
    }

    /**
     * Get string pattern.
     *
     * @return string
     */
    public function getPattern()
    {
        return $this->pattern;
    }

    /**
     * Get string pattern.
     *
     * @return string
     */
    public function noPattern()
    {
        $this->pattern = null;

        return $this;
    }

    /**
     * Get the final string size.
     *
     * @return integer
     */
    public function getSize()
    {
        return $this->size ?: static::DEFAULT_STRING_SIZE;
    }

    /**
     * Get numeric start.
     *
     * @return int
     */
    public function getStart()
    {
        return $this->start;
    }

    /**
     * Generate a random hex.
     *
     * @return string
     */
    public function hex()
    {
        $this->pattern('[a-f0-9]')->uppercase();

        return $this;
    }

    /**
     * Set string pattern.
     *
     * @param string $pattern
     * @return $this
     */
    public function pattern($pattern)
    {
        $this->pattern = $pattern;

        return $this;
    }

    /**
     * Trim string to expected size.
     *
     * @param $string
     * @param int|null $size
     * @return string
     */
    protected function trimToExpectedSize($string, $size = null)
    {
        return substr($string, 0, $size ?: $this->getSize());
    }

    /**
     * Set result to numeric.
     *
     * @param bool $state
     * @return $this
     */
    public function numeric($state = true)
    {
        $this->numeric = $state;

        return $this;
    }

    /**
     * Set result to alpha.
     *
     * @param bool $state
     * @return $this
     */
    public function alpha($state = true)
    {
        $this->numeric = !$state;

        return $this;
    }

    /**
     * Set numeric end.
     *
     * @param int $end
     * @return $this
     */
    public function end($end)
    {
        $this->end = $end;

        return $this;
    }

    /**
     * Set numeric start.
     *
     * @param int $start
     * @return $this
     */
    public function start($start)
    {
        $this->start = $start;

        return $this;
    }


    /**
     * Set the return string size.
     *
     * @param $size
     * @return $this
     */
    public function size($size)
    {
        $this->size = $size;

        return $this;
    }

    /**
     * Generate a more truly "random" alpha-numeric string.
     *
     * Extracted from Laravel Framework: Illuminate\Support\Str
     *
     * @return string|int
     */
    public function get()
    {
        return $this->changeCase(
            $this->generate()
        );
    }
}


1		<?php
2
3		namespace PragmaRX\Random;
4
5		class Random
6		{
7		use CharCase;
8
9		const DEFAULT_STRING_SIZE = 16;
10
11		const DEFAULT_PATTERN = '[A-Za-z0-9]';
12
13		protected $numeric = false;
14
15		protected $start = 0;
16
17		protected $end = PHP_INT_MAX;
18
19		protected $size = null;
20
21		protected $pattern = '[A-Za-z0-9]';
22
23		/**
24		* Extract a string pattern from a string.
25		*
26		* @param $string
27		* @return string
28		*/
29	8	protected function extractPattern($string)
30		{
31	8	if (is_null($pattern = $this->getPattern())) {
32	1	return $string;
33		}
34
35	7	preg_match_all("/$pattern/", $string, $matches);
36
37	7	return implode('', $matches[0]);
38		}
39
40		/**
41		* Generate a random string.
42		*
43		* @return string
44		*/
45	8	protected function generate()
46		{
47	8	return $this->numeric
48	3	? $this->generateNumeric()
49	8	: $this->generateAlpha();
50		}
51
52	1	protected function generateInteger()
53		{
54	1	return random_int($this->getStart(), $this->getEnd());
55		}
56
57		/**
58		* Generate a random string.
59		*
60		* @param \Closure $generator
61		* @return mixed
62		*/
63	8	protected function generateString($generator)
64		{
65	8	$string = '';
66
67	8	while (strlen($string) < $size = $this->getSize()) {
68	8	$string .= $this->extractPattern($generator($size));
69		}
70
71	8	return $this->trimToExpectedSize($string, $size);
72		}
73
74		/**
75		* Get the alpha generator.
76		*
77		* @return mixed
78		*/
79		protected function getAlphaGenerator()
80		{
81	7	return function ($size) {
82	7	return random_bytes($size);
83	7	};
84		}
85
86		/**
87		* Get the alpha generator.
88		*
89		* @return mixed
90		*/
91		protected function getNumericGenerator()
92		{
93	3	return function () {
94	3	return random_int(0, PHP_INT_MAX);
95	3	};
96		}
97
98		/**
99		* Generate a random string.
100		*
101		* @return int\|string
102		*/
103	7	protected function generateAlpha()
104		{
105	7	return $this->generateString($this->getAlphaGenerator());
106		}
107
108		/**
109		* Generate a numeric random value.
110		*
111		* @return int\|string
112		*/
113	3	protected function generateNumeric()
114		{
115	3	if (is_null($this->size) && $this->pattern == static::DEFAULT_PATTERN) {
116	1	return $this->generateInteger();
117		}
118
119	3	return $this->generateString($this->getNumericGenerator());
120		}
121
122		/**
123		* Get numeric end.
124		*
125		* @return int
126		*/
127	1	public function getEnd()
128		{
129	1	return $this->end;
130		}
131
132		/**
133		* Get string pattern.
134		*
135		* @return string
136		*/
137	8	public function getPattern()
138		{
139	8	return $this->pattern;
140		}
141
142		/**
143		* Get string pattern.
144		*
145		* @return string
146		*/
147	1	public function noPattern()
148		{
149	1	$this->pattern = null;
150
151	1	return $this;
152		}
153
154		/**
155		* Get the final string size.
156		*
157		* @return integer
158		*/
159	8	public function getSize()
160		{
161	8	return $this->size ?: static::DEFAULT_STRING_SIZE;
162		}
163
164		/**
165		* Get numeric start.
166		*
167		* @return int
168		*/
169	1	public function getStart()
170		{
171	1	return $this->start;
172		}
173
174		/**
175		* Generate a random hex.
176		*
177		* @return string
178		*/
179	1	public function hex()
180		{
181	1	$this->pattern('[a-f0-9]')->uppercase();
182
183	1	return $this;
184		}
185
186		/**
187		* Set string pattern.
188		*
189		* @param string $pattern
190		* @return $this
191		*/
192	2	public function pattern($pattern)
193		{
194	2	$this->pattern = $pattern;
195
196	2	return $this;
197		}
198
199		/**
200		* Trim string to expected size.
201		*
202		* @param $string
203		* @param int\|null $size
204		* @return string
205		*/
206	8	protected function trimToExpectedSize($string, $size = null)
207		{
208	8	return substr($string, 0, $size ?: $this->getSize());
209		}
210
211		/**
212		* Set result to numeric.
213		*
214		* @param bool $state
215		* @return $this
216		*/
217	3	public function numeric($state = true)
218		{
219	3	$this->numeric = $state;
220
221	3	return $this;
222		}
223
224		/**
225		* Set result to alpha.
226		*
227		* @param bool $state
228		* @return $this
229		*/
230	1	public function alpha($state = true)
231		{
232	1	$this->numeric = !$state;
233
234	1	return $this;
235		}
236
237		/**
238		* Set numeric end.
239		*
240		* @param int $end
241		* @return $this
242		*/
243	1	public function end($end)
244		{
245	1	$this->end = $end;
246
247	1	return $this;
248		}
249
250		/**
251		* Set numeric start.
252		*
253		* @param int $start
254		* @return $this
255		*/
256	1	public function start($start)
257		{
258	1	$this->start = $start;
259
260	1	return $this;
261		}
262
263
264		/**
265		* Set the return string size.
266		*
267		* @param $size
268		* @return $this
269		*/
270	8	public function size($size)
271		{
272	8	$this->size = $size;
273
274	8	return $this;
275		}
276
277		/**
278		* Generate a more truly "random" alpha-numeric string.
279		*
280		* Extracted from Laravel Framework: Illuminate\Support\Str
281		*
282		* @return string\|int
283		*/
284	8	public function get()
285		{
286	8	return $this->changeCase(
287	8	$this->generate()
288		);
289		}
290		}
291

antonioribeiro / random

Push — master ( 2097d9...6577e3 )

Random::getAlphaGenerator() A

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