ApiSetSortedTrait - Code Metrics - Inspection of "Merge pull request #11 from hidehalo/wip" - dazzle-php/redis - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( b586f8...cd674c )

by Kamil

created 2017-07-28 20:59 UTC

ApiSetSortedTrait B

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	339
Duplicated Lines	25.66 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

Importance

Changes

Metric	Value
wmc	41
lcom	1
cbo	1
dl	87
loc	339
ccs	0
cts	140
cp	0
rs	8.2769
c	0
b	0
f	0

22 Methods

Rating	Name	Duplication	Size	Complexity
	dispatch()	0	1	?
A	zInterStore()	0	7	1
A	zScore()	0	7	1
A	zScan()	0	8	1
A	zUnionScore()	0	7	1
A	zAdd()	7	7	1
A	zCard()	7	7	1
A	zCount()	7	7	1
A	zIncrBy()	0	7	1
A	zLexCount()	7	7	1
A	zRange()	0	18	3
A	zRangeByLex()	0	8	1
A	zRevRangeByLex()	0	8	1
C	zRangeByScore()	28	28	8
A	zRank()	0	7	1
A	zRem()	0	8	1
A	zRemRangeByLex()	0	8	1
A	zRemRangeByRank()	0	7	1
A	zRemRangeByScore()	0	8	1
B	zRevRange()	0	28	5
C	zRevRangeByScore()	28	28	8
A	zRevRank()	0	7	1

How to fix Duplicated Code Complexity

Duplicated Code

Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.

Common duplication problems, and corresponding solutions are:

If you have the same expression in different places: Extract expression to a method
If you have the same method in different sub-classes: Extract method, and pull up field to the parent class
If you have the same code in unrelated classes: Consider extracting the code to a new class, and injecting that class

Complex Class

Tip: Before tackling complexity, make sure that you eliminate any duplication first. This often can reduce the size of classes significantly.

Complex classes like ApiSetSortedTrait often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.

Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.

While breaking up the class, it is a good idea to analyze how other classes use ApiSetSortedTrait, and based on these observations, apply Extract Interface, too.

<?php

namespace Dazzle\Redis\Command\Compose;

use Dazzle\Redis\Command\Builder;
use Dazzle\Redis\Command\Enum;
use Dazzle\Redis\Driver\Request;

trait ApiSetSortedTrait
{
    /**
     * @param Request $request
     * @return mixed
     */
    abstract function dispatch(Request $request);


    /**
     * @override
     * @inheritDoc
     */
    public function zAdd($key, array $options = [], ...$scoreMembers)

    {
        $command = Enum::ZADD;
        $args = array_merge([$key], $options, $scoreMembers);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zCard($key)

    {
        $command = Enum::ZCARD;
        $args = [$key];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zCount($key, $min, $max)

    {
        $command = Enum::ZCOUNT;
        $args = [$key, $min, $max];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zIncrBy($key, $increment, $member)
    {
        $command = Enum::ZINCRBY;
        $args = [$key, $increment, $member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zInterStore($dst, $numKeys)
    {
        $command = Enum::ZINTERSTORE;
        $args = [$dst, $numKeys];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zLexCount($key, $min, $max)

    {
        $command = Enum::ZLEXCOUNT;
        $args = [$key, $min, $max];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRange($key, $star = 0, $stop = -1, $withScores = false)
    {
        $command = Enum::ZRANGE;
        $args = [$key, $star, $stop];
        if ($withScores) {
            $args[] = 'WITHSCORES';
            return $this->dispatch(Builder::build($command, $args))->then(function ($value) {
                $len = count($value);
                $ret = [];
                for ($i=0; $i<$len; $i+=2) {
                    $ret[$value[$i]] = $value[$i+1];
                }
                return $ret;
            });
        }

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRangeByLex($key, $min, $max, array $options = [])
    {
        $command = Enum::ZRANGEBYLEX;
        $args = [$key, $min, $max];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRangeByLex($key, $max, $min, array $options = [])
    {
        $command = Enum::ZREVRANGEBYLEX;
        $args = [$key, $max,$min];
        $args = array_merge($args,$options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRangeByScore($key, $min, $max, $withScores = false, $offset = 0, $count = 0)

    {
        $command = Enum::ZRANGEBYSCORE;
        $args = [$key, $min, $max];
        if ($withScores === true) {
            $args[] = 'WITHSCORES';
        }
        if ($offset != 0 || $count != 0) {
            $args[] = 'LIMIT';
            $args[] = $offset;
            $args[] = $count;
        }
        $promise = $this->dispatch(Builder::build($command, $args));

        return $withScores ? $promise->then(function ($value) {
            $len = is_array($value) ? count($value) : 0;
            if ($len > 0) {
                $ret = [];
                for ($i=0; $i<$len; $i+=2) {
                    $ret[$value[$i]] = $value[$i+1];
                }

                return $ret;
            }

            return $value;
        } ) : $promise;
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRank($key, $member)
    {
        $command = Enum::ZRANK;
        $args = [$key,$member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRem($key, ...$members)
    {
        $command = Enum::ZREM;
        $args = [$key];
        $args = array_merge($args, $members);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRemRangeByLex($key, $min, $max, array $options = [])
    {
        $command = Enum::ZREMRANGEBYLEX;
        $args = [$key, $min, $max];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRemRangeByRank($key, $start, $stop)
    {
        $command = Enum::ZREMRANGEBYRANK;
        $args = [$key, $start,$stop];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRemRangeByScore($key, $min, $max, array $options = [])
    {
        $command = Enum::ZREMRANGEBYSCORE;
        $args = [$key, $min, $max];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRange($key, $start, $stop, $withScores = false)
    {
        $command = Enum::ZREVRANGE;
        $args = [$key, $start, $stop];

        if ($withScores === true) {
            $args[] = 'WITHSCORES';
            
            return $this->dispatch(Builder::build($command, $args))
            ->then(function ($value) {
                $len = is_array($value) ? count($value) : 0;
                if ($len > 0) {
                    $ret = [];
                    for ($i=0; $i<$len; $i+=2) {
                        $member = $value[$i];
                        $score = $value[$i+1];
                        $ret[$member] = $score;
                    }

                    return $ret;
                }

                return $value; 
            });
        } 

        return $promise = $this->dispatch(Builder::build($command, $args));
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRangeByScore($key, $max, $min, $withScores = false, $offset = 0, $count = 0)

    {
        $command = Enum::ZREVRANGEBYSCORE;
        $args = [$key, $max, $min];
        if ($withScores === true) {
            $args[] = 'WITHSCORES';
        }
        if ($offset != 0 || $count != 0) {
            $args[] = 'LIMIT';
            $args[] = $offset;
            $args[] = $count;
        }
        $promise = $this->dispatch(Builder::build($command, $args));

        return $withScores ? $promise->then(function ($value) {
            $len = is_array($value) ? count($value) : 0;
            if ($len > 0) {
                $ret = [];
                for ($i=0; $i<$len; $i+=2) {
                    $ret[$value[$i]] = $value[$i+1];
                }

                return $ret;
            }

            return $value;
        } ) : $promise;
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zRevRank($key, $member)
    {
        $command = Enum::ZREVRANK;
        $args = [$key,$member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zScore($key, $member)
    {
        $command = Enum::ZSCORE;
        $args = [$key,$member];

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @override
     * @inheritDoc
     */
    public function zScan($key, $cursor, array $options = [])
    {
        $command = Enum::ZSCAN;
        $args = [$key , $cursor];
        $args = array_merge($args, $options);

        return $this->dispatch(Builder::build($command, $args));
    }

    /**
     * @inheritDoc
     */
    public function zUnionScore($dst, $numKeys)
    {
        $command = Enum::ZUNIIONSCORE;
        $args = [$dst, $numKeys];

        return $this->dispatch(Builder::build($command, $args));
    }
}

1		<?php
2
3		namespace Dazzle\Redis\Command\Compose;
4
5		use Dazzle\Redis\Command\Builder;
6		use Dazzle\Redis\Command\Enum;
7		use Dazzle\Redis\Driver\Request;
8
9		trait ApiSetSortedTrait
10		{
11		/**
12		* @param Request $request
13		* @return mixed
14		*/
15		abstract function dispatch(Request $request);
		0 ignored issues – show Best Practice introduced 2017-07-02 15:04 UTC by Report Bug Copy Issue Report It is generally recommended to explicitly declare the visibility for methods. Adding explicit visibility (`private`, `protected`, or `public`) is generally recommend to communicate to other developers how, and from where this method is intended to be used. Loading history...
16
17		/**
18		* @override
19		* @inheritDoc
20		*/
21	View Code Duplication	public function zAdd($key, array $options = [], ...$scoreMembers)
		0 ignored issues – show Duplication introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
22		{
23		$command = Enum::ZADD;
24		$args = array_merge([$key], $options, $scoreMembers);
25
26		return $this->dispatch(Builder::build($command, $args));
27		}
28
29		/**
30		* @override
31		* @inheritDoc
32		*/
33	View Code Duplication	public function zCard($key)
		0 ignored issues – show Duplication introduced 2017-07-03 14:32 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
34		{
35		$command = Enum::ZCARD;
36		$args = [$key];
37
38		return $this->dispatch(Builder::build($command, $args));
39		}
40
41		/**
42		* @override
43		* @inheritDoc
44		*/
45	View Code Duplication	public function zCount($key, $min, $max)
		0 ignored issues – show Duplication introduced 2017-07-01 22:13 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
46		{
47		$command = Enum::ZCOUNT;
48		$args = [$key, $min, $max];
49
50		return $this->dispatch(Builder::build($command, $args));
51		}
52
53		/**
54		* @override
55		* @inheritDoc
56		*/
57		public function zIncrBy($key, $increment, $member)
58		{
59		$command = Enum::ZINCRBY;
60		$args = [$key, $increment, $member];
61
62		return $this->dispatch(Builder::build($command, $args));
63		}
64
65		/**
66		* @override
67		* @inheritDoc
68		*/
69		public function zInterStore($dst, $numKeys)
70		{
71		$command = Enum::ZINTERSTORE;
72		$args = [$dst, $numKeys];
73
74		return $this->dispatch(Builder::build($command, $args));
75		}
76
77		/**
78		* @override
79		* @inheritDoc
80		*/
81	View Code Duplication	public function zLexCount($key, $min, $max)
		0 ignored issues – show Duplication introduced 2017-07-01 22:13 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
82		{
83		$command = Enum::ZLEXCOUNT;
84		$args = [$key, $min, $max];
85
86		return $this->dispatch(Builder::build($command, $args));
87		}
88
89		/**
90		* @override
91		* @inheritDoc
92		*/
93		public function zRange($key, $star = 0, $stop = -1, $withScores = false)
94		{
95		$command = Enum::ZRANGE;
96		$args = [$key, $star, $stop];
97		if ($withScores) {
98		$args[] = 'WITHSCORES';
99		return $this->dispatch(Builder::build($command, $args))->then(function ($value) {
100		$len = count($value);
101		$ret = [];
102		for ($i=0; $i<$len; $i+=2) {
103		$ret[$value[$i]] = $value[$i+1];
104		}
105		return $ret;
106		});
107		}
108
109		return $this->dispatch(Builder::build($command, $args));
110		}
111
112		/**
113		* @override
114		* @inheritDoc
115		*/
116		public function zRangeByLex($key, $min, $max, array $options = [])
117		{
118		$command = Enum::ZRANGEBYLEX;
119		$args = [$key, $min, $max];
120		$args = array_merge($args, $options);
121
122		return $this->dispatch(Builder::build($command, $args));
123		}
124
125		/**
126		* @override
127		* @inheritDoc
128		*/
129		public function zRevRangeByLex($key, $max, $min, array $options = [])
130		{
131		$command = Enum::ZREVRANGEBYLEX;
132		$args = [$key, $max,$min];
133		$args = array_merge($args,$options);
134
135		return $this->dispatch(Builder::build($command, $args));
136		}
137
138		/**
139		* @override
140		* @inheritDoc
141		*/
142	View Code Duplication	public function zRangeByScore($key, $min, $max, $withScores = false, $offset = 0, $count = 0)
		0 ignored issues – show Duplication introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
143		{
144		$command = Enum::ZRANGEBYSCORE;
145		$args = [$key, $min, $max];
146		if ($withScores === true) {
147		$args[] = 'WITHSCORES';
148		}
149		if ($offset != 0 \|\| $count != 0) {
150		$args[] = 'LIMIT';
151		$args[] = $offset;
152		$args[] = $count;
153		}
154		$promise = $this->dispatch(Builder::build($command, $args));
155
156		return $withScores ? $promise->then(function ($value) {
157		$len = is_array($value) ? count($value) : 0;
158		if ($len > 0) {
159		$ret = [];
160		for ($i=0; $i<$len; $i+=2) {
161		$ret[$value[$i]] = $value[$i+1];
162		}
163
164		return $ret;
165		}
166
167		return $value;
168		} ) : $promise;
169		}
170
171		/**
172		* @override
173		* @inheritDoc
174		*/
175		public function zRank($key, $member)
176		{
177		$command = Enum::ZRANK;
178		$args = [$key,$member];
179
180		return $this->dispatch(Builder::build($command, $args));
181		}
182
183		/**
184		* @override
185		* @inheritDoc
186		*/
187		public function zRem($key, ...$members)
188		{
189		$command = Enum::ZREM;
190		$args = [$key];
191		$args = array_merge($args, $members);
192
193		return $this->dispatch(Builder::build($command, $args));
194		}
195
196		/**
197		* @override
198		* @inheritDoc
199		*/
200		public function zRemRangeByLex($key, $min, $max, array $options = [])
201		{
202		$command = Enum::ZREMRANGEBYLEX;
203		$args = [$key, $min, $max];
204		$args = array_merge($args, $options);
205
206		return $this->dispatch(Builder::build($command, $args));
207		}
208
209		/**
210		* @override
211		* @inheritDoc
212		*/
213		public function zRemRangeByRank($key, $start, $stop)
214		{
215		$command = Enum::ZREMRANGEBYRANK;
216		$args = [$key, $start,$stop];
217
218		return $this->dispatch(Builder::build($command, $args));
219		}
220
221		/**
222		* @override
223		* @inheritDoc
224		*/
225		public function zRemRangeByScore($key, $min, $max, array $options = [])
226		{
227		$command = Enum::ZREMRANGEBYSCORE;
228		$args = [$key, $min, $max];
229		$args = array_merge($args, $options);
230
231		return $this->dispatch(Builder::build($command, $args));
232		}
233
234		/**
235		* @override
236		* @inheritDoc
237		*/
238		public function zRevRange($key, $start, $stop, $withScores = false)
239		{
240		$command = Enum::ZREVRANGE;
241		$args = [$key, $start, $stop];
242
243		if ($withScores === true) {
244		$args[] = 'WITHSCORES';
245
246		return $this->dispatch(Builder::build($command, $args))
247		->then(function ($value) {
248		$len = is_array($value) ? count($value) : 0;
249		if ($len > 0) {
250		$ret = [];
251		for ($i=0; $i<$len; $i+=2) {
252		$member = $value[$i];
253		$score = $value[$i+1];
254		$ret[$member] = $score;
255		}
256
257		return $ret;
258		}
259
260		return $value;
261		});
262		}
263
264		return $promise = $this->dispatch(Builder::build($command, $args));
		0 ignored issues – show Unused Code introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report `$promise` 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 `$higher` is always overwritten for every possible time line. Loading history...
265		}
266
267		/**
268		* @override
269		* @inheritDoc
270		*/
271	View Code Duplication	public function zRevRangeByScore($key, $max, $min, $withScores = false, $offset = 0, $count = 0)
		0 ignored issues – show Duplication introduced 2017-07-11 16:09 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
272		{
273		$command = Enum::ZREVRANGEBYSCORE;
274		$args = [$key, $max, $min];
275		if ($withScores === true) {
276		$args[] = 'WITHSCORES';
277		}
278		if ($offset != 0 \|\| $count != 0) {
279		$args[] = 'LIMIT';
280		$args[] = $offset;
281		$args[] = $count;
282		}
283		$promise = $this->dispatch(Builder::build($command, $args));
284
285		return $withScores ? $promise->then(function ($value) {
286		$len = is_array($value) ? count($value) : 0;
287		if ($len > 0) {
288		$ret = [];
289		for ($i=0; $i<$len; $i+=2) {
290		$ret[$value[$i]] = $value[$i+1];
291		}
292
293		return $ret;
294		}
295
296		return $value;
297		} ) : $promise;
298		}
299
300		/**
301		* @override
302		* @inheritDoc
303		*/
304		public function zRevRank($key, $member)
305		{
306		$command = Enum::ZREVRANK;
307		$args = [$key,$member];
308
309		return $this->dispatch(Builder::build($command, $args));
310		}
311
312		/**
313		* @override
314		* @inheritDoc
315		*/
316		public function zScore($key, $member)
317		{
318		$command = Enum::ZSCORE;
319		$args = [$key,$member];
320
321		return $this->dispatch(Builder::build($command, $args));
322		}
323
324		/**
325		* @override
326		* @inheritDoc
327		*/
328		public function zScan($key, $cursor, array $options = [])
329		{
330		$command = Enum::ZSCAN;
331		$args = [$key , $cursor];
332		$args = array_merge($args, $options);
333
334		return $this->dispatch(Builder::build($command, $args));
335		}
336
337		/**
338		* @inheritDoc
339		*/
340		public function zUnionScore($dst, $numKeys)
341		{
342		$command = Enum::ZUNIIONSCORE;
343		$args = [$dst, $numKeys];
344
345		return $this->dispatch(Builder::build($command, $args));
346		}
347		}

dazzle-php / redis